Best Heat Pump Installers for Switching from Gas Furnace (2026)

The research in brief

The consensus leader for replacing a gas furnace with an all-electric heat pump in this 7-platform study is Pro Build Home Services, named by 3 of 7 platforms (42.9%) at an average listed position of 1.0. The strongest alternatives for distinct buyer needs are Superior Co-Op HVAC for Upstate New York and Vermont Mitsubishi Hyper-Heat conversions, Elephant Energy for managed electrification with upfront rebate advancement in Colorado, Massachusetts, and Los Angeles, and Mitsubishi Electric Certified Installers (Diamond Contractors) for buyers who want to select equipment first and contractor second. Seven platforms were studied: ChatGPT, Claude, DeepSeek, Grok, Perplexity, Kimi, and Gemini. The principal limitation is that company-owned citations materially outnumber independent citations, several platforms could not retrieve official websites at research time, and platform-reported research dates differ from the authoritative run date of 2026-09-30.

Research Snapshot

• Topic: Heat pump conversion from gas furnace - replacing an existing gas furnace with an all-electric heat pump system.
• Target buyer: A homeowner who wants to get rid of a gas furnace entirely and switch to an all-electric heat pump, partly for efficiency and partly to move away from gas heating.
• Platforms included: ChatGPT, Claude, DeepSeek, Grok, Perplexity, Kimi, Gemini (7 total).
• Research date: 2026-09-30 (authoritative run date).
• Unique entities named across platforms: 42.
• Qualifying entities: 7.
• Eligibility rule: Named by at least two platforms during ranking discovery.
• Geography: United States.
• Ranking unit: HVAC contractor or company brand.

The study used one standardized prompt sent once to each included platform. The prompt asked which providers would be recommended for a homeowner who needs cold-climate heat pump sizing, electrical panel upgrade capability, rebate navigation, and safe gas line decommissioning.

The Consensus Ranking

Questions explored

• What are the best HVAC companies for switching from a gas furnace to an all-electric heat pump in 2026?
• Which heat pump conversion contractors were named by the most AI platforms, and how often did each appear?

Platform mentions count only ranking-discovery mentions. Several platforms that did not name an entity during ranking discovery still completed a fit assessment for it; those assessments are used in the ranked sections below but do not change the mention counts.

Which provider fits your needs?

Questions explored

• Which HVAC company should a homeowner choose for a gas furnace to heat pump conversion if they need rebate paperwork handled by the contractor?
• Is a regional specialist or a national installer better for a cold-climate gas furnace conversion when electrical panel upgrades are required?
• Which heat pump conversion contractor is best for a homeowner who wants a virtual assessment instead of an in-home sales visit?

1. Pro Build Home Services

Questions explored

• Is Pro Build Home Services worth it for a Massachusetts gas furnace to heat pump conversion, and what are its main drawbacks?
• What should a Massachusetts homeowner verify before hiring Pro Build Home Services for a Mass Save heat pump conversion?

Pro Build Home Services ranks first because it was named by 3 of 7 platforms at an average listed position of 1.0, the best average in the study. It is the only ranked entity whose evidence bundle shows all four topic criteria - cold-climate sizing, electrical upgrade knowledge, rebate assistance, and gas line decommissioning - addressed by a single contractor with advertised in-house licensing [e1:official:C1]. The complete fit review is available at Pro Build Home Services.

Why it ranked here. Three platforms named it, and all three placed it first. Its average listed position of 1.0 is the strongest in the table. The ranking reflects platform discovery, not verified performance.

Best suited for. Massachusetts single-family or 1–4 unit homeowners seeking a whole-home cold-climate heat pump conversion, homes with existing forced-air ductwork, and projects likely to need a 200-amp service or panel upgrade.

Main strengths for the use case. Pro Build advertises cold-climate heat-pump installation, whole-home ducted systems, Manual J load calculations, AHRI-matched equipment, electrical-capacity checks, Mass Save filing, and coordination of panel upgrades and gas-line decommissioning ^[58]. Its site states it holds an active Massachusetts Construction Supervisor License, Home Improvement Contractor registration, $2 million general liability insurance, workers' compensation, EPA RRP Lead-Safe certification, EPA 608 refrigerant certification, and Mass Save Heat Pump Contractor authorization [e1:official:C1]. It advertises NEEP-listed cold-climate equipment including Mitsubishi Hyper-Heat, Fujitsu XLTH, and Bosch IDS 2.0 ^[62].

Main limitations. Service area appears limited to Massachusetts. Mass Save participation and current Heat Pump Installer Network status were not independently verified. Public pricing is indicative only. Company claims about installations, reviews, rebates, warranties, and customer savings are largely self-published ^[58]. One platform could not retrieve the official website at all and rated the entity uncertain, noting that the only located third-party record was a directory listing for a similarly named Massachusetts HIC-registered entity that may not be the same business ^[230].

Pricing or cost summary. Pro Build publishes indicative Massachusetts ranges of $15,000–$28,000 before rebates for whole-home air-source heat pumps and states that a panel upgrade typically costs $3,500–$6,500 ^[58]. Another platform-reported range is $15,000–$35,000 with panel upgrades at $3,500–$7,500 and single-zone ductless at $4,500–$9,500 ^[59]. A third reports 200-amp upgrades at $2,400–$3,800 offset by a Mass Save $4,000 panel rebate ^[114]. These figures conflict and none is a binding quote. Official 2026 Mass Save whole-home air-source rebates are $2,650 per ton up to $8,500, with income-based incentives up to $16,000 ^[251]. HEAT Loan financing is 0% up to $25,000, and panel-upgrade financing through the loan may be capped at $5,000 ^[250].

Where platforms disagreed. Pro Build advertises rebates up to $10,000, while official Mass Save 2026 materials state $2,650 per ton up to $8,500 ^[58]. Warranty terms conflict internally: one page states a 5-year workmanship warranty, another lists 2 years on heat pump, boiler, electrical panel, and roofing installations ^[55]. HEAT Loan maximums are cited as both $25,000 and $50,000 across company pages ^[69]. Fit ratings ranged from strong (Claude, Gemini, Grok) to good (ChatGPT, Perplexity) to uncertain (DeepSeek, Kimi).

2. Superior Co-Op HVAC

Questions explored

• Is Superior Co-Op HVAC worth it for a gas furnace to heat pump conversion in Upstate New York or Vermont, and what are its main drawbacks?
• Does Superior Co-Op HVAC handle gas line decommissioning and electrical panel upgrades for a Mitsubishi Hyper-Heat conversion?

Superior Co-Op HVAC ranks second with 3 platform mentions at an average listed position of 2.67. It is a Mitsubishi-exclusive regional specialist serving Upstate New York and Vermont, and it is the only ranked entity whose evidence bundle ties a Manual J load calculation to a written comfort guarantee [e2:official:C1]. The complete fit review is available at Superior Co-Op HVAC.

Why it ranked here. Three platforms named it, with listed positions of 4, 2, and 2. Its best position of 2 is the highest among the three-mention entities other than Pro Build.

Best suited for. Existing forced-air homes with usable ductwork in Upstate New York or Vermont, homeowners seeking a Mitsubishi cold-climate system designed for low outdoor temperatures, and buyers who want contractor-managed NYS Clean Heat or Efficiency Vermont incentive paperwork.

Main strengths for the use case. The company advertises Mitsubishi ducted air handlers that replace an existing forced-air furnace while retaining supply and return registers ^[78]. It states that it performs Manual J heat-load calculations and uses Mitsubishi Hyper-Heat equipment, with published claims of 100% capacity to -13°F and operation to -35°F ^[72]. It holds Mitsubishi Diamond Contractor ELITE status, the highest tier Mitsubishi awards, and has held it since 2020 [e2:official:C1]. It advertises filing NYS Clean Heat or Efficiency Vermont rebates and 18-month 0% financing ^[79]. Its ducted-system page says the company checks static pressure, disconnected runs, and return-air capacity before quoting ^[78].

Main limitations. Service coverage is regional rather than nationwide. The company appears Mitsubishi-focused, limiting brand comparison. Electrical-panel and service-upgrade responsibility is not clearly documented. Gas-line and gas-meter decommissioning scope is not clearly documented. No public turnkey price allows direct cost comparison. Several performance, savings, warranty, and customer-outcome statements are company claims rather than independent evidence ^[78].

Pricing or cost summary. Installation pricing is quote-based. Publicly listed financing includes 0% interest for 18 months with equal monthly payments, plus longer-term examples at 5.99% for 37 months, 7.99% for 61 months, and 9.99% for 132 months, with a stated maximum regular interest rate of 26.99% ^[79]. A Superior Shield plan is advertised at $28 per month for a single-zone system, comprising $18.50 per outdoor condenser and $9.50 per indoor air handler [e2:official:C2]. Maintenance visit pricing includes gas furnace tune-ups at $169 and ductless mini-split service at $169 [e2:official:C2].

Where platforms disagreed. One platform reported that as of January 1, 2026, NYS Clean Heat utility rebates require the customer to have electric utility service, and natural gas-only customers are no longer eligible ^[96]. Another platform reported that the federal HEEHR program removed fuel-switching rebates effective May 29, 2026, which would directly undermine a marketed strength for gas-to-heat-pump conversions ^[189]. Fit ratings ranged from strong (Claude, Gemini, Grok) to good (ChatGPT) to mixed (Perplexity) to uncertain (DeepSeek, Kimi).

3. Elephant Energy

Questions explored

• Is Elephant Energy worth it for a gas furnace to heat pump conversion, and what are its main drawbacks?
• Which heat pump conversion contractor applies rebates upfront so the homeowner pays the net amount at signing?

Elephant Energy ranks third with 3 platform mentions at an average listed position of 3.0, and it holds the best single listed position of 1 among the three-mention entities other than Pro Build. It operates as a managed electrification provider rather than a traditional HVAC contractor, and it is the only ranked entity whose official pricing page shows rebates applied at point of sale [e3:official:C1]. The complete fit review is available at Elephant Energy.

Why it ranked here. Three platforms named it, with listed positions of 4, 1, and 4. Its average of 3.0 places it behind Pro Build and Superior Co-Op but ahead of the two-mention entities.

Best suited for. Homeowners in Colorado, Massachusetts, or Los Angeles seeking a managed heat-pump conversion, cold-climate homes where documented heat-pump sizing and low-temperature performance are important, and buyers who want the installer to manage permits, inspections, rebates, and some upfront incentive application.

Main strengths for the use case. Elephant Energy states that it uses a sizing methodology incorporating Manual J principles, historical weather data, equipment heat-output data, and building-science modeling ^[134]. It publishes upfront pricing with rebates applied before financing [e3:official:C1]. It states that it handles rebate paperwork and advances or applies eligible incentives upfront ^[145]. Its published materials include examples of replacing an existing gas furnace with a heat pump ^[143]. It advertises a 10-year performance guarantee covering repair, upgrade, or replacement if the system fails to maintain 68°F between -5°F and 95°F ^[145].

Main limitations. Service is geographically limited to Colorado, Massachusetts, and Los Angeles ^[136]. Gas-line decommissioning scope is not clearly published. Equipment brands, exact models, backup-heat strategy, and efficiency ratings are not specified in the general estimate. Public pricing is broad and may exclude project-specific work. Independent evidence on performance, savings, and installation quality is limited in the reviewed sources ^[134]. One platform documented a warranty and post-warranty support issue with a heat pump water heater in which the product failure was not addressed and the company charged $200 for a contractor visit when the unit was out of warranty ^[239].

Pricing or cost summary. The official pricing page shows installation and materials at $17,500–$40,000, permits and inspections included, rebates of $800–$20,000, financing starting at 0%, and a total of $0–$39,200 [e3:official:C1]. A separate heat-pump page shows $16,000–$40,000 before rebates with a displayed post-rebate total of $0–$38,500 ^[134]. A company article gives a $23,000 example before incentives for a cold-climate heat pump plus electrical upgrades and a $12,900 example after listed incentives ^[134]. Electrical panel upgrades are cited at $6,000–$10,000 when required ^[133].

Where platforms disagreed. Published pricing varies by page: one page shows $16,000–$40,000 while the homepage shows $17,500–$40,000 ^[128]. The company describes rebate advancement, but the timing, recourse, and treatment of denied or delayed rebates are unclear ^[134]. One platform reported that the federal 25C tax credit expired December 31, 2025, and that no federal tax credit applies to heat pump conversions in 2026, which would make any marketing referencing federal tax credits outdated ^[201]. Fit ratings ranged from strong (Claude, Gemini, Grok) to good (DeepSeek, ChatGPT, Perplexity) to uncertain (Kimi).

4. Mitsubishi Electric Certified Installers (Diamond Contractors)

Questions explored

• Is Mitsubishi Electric Certified Installers (Diamond Contractors) worth it for a gas furnace to heat pump conversion, and what are its main drawbacks?
• Does a Mitsubishi Diamond Contractor handle gas line decommissioning and electrical panel upgrades, or must the homeowner hire separate trades?

Mitsubishi Electric Certified Installers (Diamond Contractors) ranks fourth with 2 platform mentions at an average listed position of 2.0, the best average among the two-mention entities. It is a manufacturer contractor network rather than a single company, which means the buyer selects the equipment line and the certification tier, then selects the individual installer. The complete fit review is available at Mitsubishi Electric Certified Installers (Diamond Contractors).

Why it ranked here. Two platforms named it, with listed positions of 3 and 1. Its average of 2.0 is higher than Elephant Energy's 3.0, but it qualified with fewer mentions, which places it fourth under the ranking rule.

Best suited for. Homeowners seeking a full all-electric replacement rather than a dual-fuel system, cold-climate homes where H2i/H2i plus equipment is properly sized and commissioned, and homes that can use existing ducts or benefit from Mitsubishi ducted, ductless, or zoned configurations.

Main strengths for the use case. Mitsubishi states that H2i plus ducted systems provide 100% heating capacity to -10°F and guaranteed heating to -13°F ^[159]. It offers ducted, ductless, and multi-zone systems intended for applications including upgrading furnace systems ^[159]. It states that residential systems installed by a Diamond Contractor and registered within 90 days are eligible for its best warranty terms ^[158]. It provides a ZIP-code rebate finder and product incentive information ^[163]. Diamond Contractors undergo factory-certified training and are audited on sizing calculations and flaring and vacuum testing ^[202].

Main limitations. Diamond Contractor status is not a substitute for independently checking local workmanship, licensing, insurance, references, and commissioning. No universal price or scope applies across Diamond Contractors. Cold-climate claims do not guarantee full-load coverage at the home's design temperature. Panel upgrades, service upgrades, electrical permits, and gas-line work may be outside the installing contractor's scope. Mitsubishi's public materials reviewed do not establish standardized customer outcomes or a mandatory gas-decommissioning process ^[159]. One platform noted that single-zone ductless mini-splits of 12K–18K BTU may be significantly undersized for full-home gas furnace replacement, and that sizing errors are common ^[238].

Pricing or cost summary. No national equipment, installation, or Diamond Contractor service price was identified. Platform-reported installed costs include $10,500–$14,500 for a 3-ton ducted H2i system, $3,800–$5,800 for a 12K–18K BTU single-zone ductless unit, and $7,000–$20,000+ for multi-zone systems ^[186]. Electrical upgrades are cited at $500–$5,000, gas line removal at $300–$1,000, ductwork modifications at $1,500–$3,000, and permits at $100–$500 ^[71]. Another platform reported whole-home conversions ranging from $10,000 to over $30,000 depending on home size, electrical upgrades, and zones ^[210].

Where platforms disagreed. Cold-climate operating temperature specifications vary across sources: H2i models are rated to -13°F in most U.S. sources, while some older or Canadian sources cite -15°C/5°F ^[238]. One platform reported that Mitsubishi does not offer a standard manufacturer-backed labor warranty, meaning labor coverage depends entirely on the individual contractor ^[263]. Another reported that the federal 25C credit ended after 2025 and that HEEHR rebates no longer cover fuel switching ^[189]. Fit ratings ranged from strong (Gemini, Grok) to good (Claude, DeepSeek, Kimi, ChatGPT, Perplexity).

5. EDGE Energy

Questions explored

• Is EDGE Energy worth it for a gas furnace to heat pump conversion in Maryland, DC, or Virginia, and what are its main drawbacks?
• Does EDGE Energy handle gas line decommissioning and electrical panel upgrades as part of a heat pump conversion?

EDGE Energy ranks fifth with 2 platform mentions at an average listed position of 6.5. It is a Maryland, DC, and Virginia contractor that bundles home-energy audits and electrification planning with heat pump installation, and it is the only ranked entity whose evidence bundle shows a blower-door-based audit credited toward the project ^[25]. The complete fit review is available at EDGE Energy.

Why it ranked here. Two platforms named it, with listed positions of 5 and 8. Its average of 6.5 places it fifth.

Best suited for. DMV homeowners replacing a gas furnace with a ducted or ductless heat pump, homeowners wanting an energy audit plus envelope or ductwork recommendations and rebate paperwork handled together, and Maryland homeowners who may qualify for state or utility electrification incentives.

Main strengths for the use case. EDGE explicitly identifies upgrading a gas furnace to an energy-efficient heat pump as a common electrification project ^[32]. It offers home-energy audits using blower-door testing, thermal assessment, HVAC inspection, and combustion-safety checks, and says the results are used for a prioritized, rebate-ready upgrade plan ^[25]. It states that it identifies available rebates and handles rebate paperwork, referencing federal, Maryland, DC, Virginia, utility, and local incentives ^[32]. It states that design, installation, and service are handled by in-house teams ^[31]. One platform reported that EDGE employs in-house master electricians and can complete electrical panel upgrades directly ^[36].

Main limitations. No publicly verified heat-pump model, AHRI combination, low-temperature capacity, or backup-heat specification was identified. No public confirmation of Manual J sizing, Manual S equipment selection, or documented commissioning procedures. Electrical-panel and service-upgrade scope is not clearly defined for heat-pump conversions. Gas-line, gas-meter, and furnace-removal responsibilities are not publicly defined. Published price ranges are broad and inconsistent in scope ^[32]. One platform could not confirm cold-climate sizing methodology, electrical upgrade capability, rebate filing, gas decommissioning, pricing, or service geography and rated the entity uncertain ^[18].

Pricing or cost summary. EDGE does not publish a firm standard price for a gas-furnace-to-heat-pump conversion. Its public HVAC FAQ gives a broad heat-pump or central-air installation range of $4,000 to $34,000 or more, while its Switch Together page gives a typical heat-pump-system range of $17,000 to $30,000 ^[31]. A home-energy audit is publicly listed at $400, or $100 for Maryland customers after stated rebates, with the audit cost credited toward an EDGE project ^[25]. Financing includes GreenSky Plan 2521 as no interest if paid in full within 12 months and Plan 2714 as 4.99% APR for 60 months ^[26].

Where platforms disagreed. EDGE's website uses both "20+ years" and "since 2006," and public pages cite both more than 5,000 projects and 3,500 combined residential projects ^[32]. One platform reported that EDGE operates as two separate entities - EDGE Energy in the DMV and Edge Energy in Maine - with unclear service-area overlap or unified company structure ^[122]. Another platform reported that a separate, unrelated HVAC business named "Edge Energy" operates in Portland, Maine, which may cause confusion ^[18]. Fit ratings ranged from strong (Gemini, Grok) to good (Claude, ChatGPT, Perplexity) to uncertain (DeepSeek, Kimi).

6. Zero Homes

Questions explored

• Is Zero Homes worth it for a gas furnace to heat pump conversion, and what are its main drawbacks?
• Does Zero Homes handle gas line decommissioning and electrical panel upgrades when replacing a gas furnace with a heat pump?

Zero Homes ranks sixth with 2 platform mentions at an average listed position of 7.0 and a best position of 6. It is a virtual-first electrification platform that designs the system remotely and delegates physical installation to a vetted local contractor network, and it is the only ranked entity whose official terms document a three-business-day cancellation window [e6:official:C2]. The complete fit review is available at Zero Homes.

Why it ranked here. Two platforms named it, with listed positions of 8 and 6. Its average of 7.0 ties with Comfort Crew, and its best position of 6 breaks the tie in its favor.

Best suited for. Homeowners in Colorado, Minnesota, Illinois, or Massachusetts who prefer a no-sales-visit digital process, gas-furnace replacement projects requiring heat-pump design, permits, inspections, possible panel work, and rebate paperwork, and buyers who want an itemized quote with incentives applied before signing.

Main strengths for the use case. Zero Homes states that its designs are sized for the home and climate zone and that modern cold-climate systems can provide usable heat to approximately -15°F, with most homes not needing backup heat ^[176]. It says its engineers use a Manual J load calculation based on a digital home scan, room dimensions, windows, existing equipment, and the electrical panel ^[174]. It states that it identifies federal, state, local, and utility incentives, applies eligible savings in the quote, and submits rebate paperwork ^[175]. Its terms state that Zero Homes and its contractors provide a one-year workmanship and labor warranty [e6:official:C2]. One platform reported that the design platform received ACCA Manual J approval ^[172].

Main limitations. No publicly disclosed recommended manufacturer, model number, AHRI match, capacity at low outdoor temperatures, or COP/HSPF data for the proposed system. No clear public commitment that the selected design will operate without backup heat at -15°F in the buyer's specific home. Gas-line decommissioning and utility gas-service termination are not clearly documented as standard inclusions. A virtual scan may not reveal every concealed or installation-specific condition. Service-area information is inconsistent across public pages ^[176]. One platform could not retrieve the official website content and found no independent directory, licensing, or review records for Zero Homes as a heat pump installer ^[168].

Pricing or cost summary. No public fixed price or equipment-specific price was found. Zero Homes states that it provides a free, itemized quote after the digital assessment, with eligible rebates and incentives reflected upfront ^[175]. Platform-reported ranges include $18,000–$28,000 installed for a whole-home cold-climate heat pump of 3–5 tons, with electrical panel upgrades typically $2,000–$5,000 ^[175]. Another platform reported typical conversions of $10,000 to over $20,000 before rebates, with Xcel Energy pilot participants potentially qualifying for incentives covering up to 100% of project cost depending on income ^[259]. Colorado CCEF on-bill repayment financing is cited at 4%–5.49% with terms up to 10 years and no prepayment penalty ^[171].

Where platforms disagreed. Cold-climate operating temperature is cited as both -13°F and -15°F across company materials ^[175]. Timeline to quote is cited as about one day currently and 30 minutes as a 2026 goal, but a verified customer review reported a six-week proposal delay ^[178]. Service areas are listed as four states on the official website and three states on an EnergySage profile ^[240]. Fit ratings ranged from strong (Claude) to good (Gemini, Grok, ChatGPT, Perplexity) to uncertain (DeepSeek, Kimi).

7. Comfort Crew

Questions explored

• Is Comfort Crew worth it for a gas furnace to heat pump conversion in Colorado, and what are its main drawbacks?
• Which heat pump conversion contractor in Xcel Energy territory advertises the highest per-ton rebate, and what must a buyer verify about that amount?

Comfort Crew ranks seventh with 2 platform mentions at an average listed position of 7.0 and a best position of 7. It is a Colorado Front Range contractor that advertises cold-climate heat pumps with Xcel Energy rebate coordination, and it is the only ranked entity whose evidence bundle shows a rebate amount that conflicts directly with an older official utility document ^[167]. The complete fit review is available at Comfort Crew.

Why it ranked here. Two platforms named it, both at position 7. Its average of 7.0 ties with Zero Homes, and its best position of 7 places it last under the tiebreak.

Best suited for. Colorado Front Range homeowners, especially Xcel Energy customers, seeking a contractor that advertises cold-climate heat pumps and rebate coordination; homeowners replacing both an existing gas furnace and air conditioner with one ducted heat-pump system; and homes with usable existing ductwork or homeowners considering ductless zoning.

Main strengths for the use case. Comfort Crew advertises both ducted central heat pumps and ductless mini-split systems, including applications described as replacing a gas-baseline heating system ^[6]. It claims to provide proper load calculations, matched equipment selection, and commissioning, and its rebate calculator page claims Manual J certification ^[7]. It claims to be a rebate-eligible installer and says it identifies and applies qualifying rebates upfront ^[8]. It describes refrigerant charging, electrical-connection checks, thermostat communication checks, heating and cooling tests, and performance measurements before completion ^[9]. One platform reported a 10-year parts and labor warranty on residential equipment installations ^[268].

Main limitations. No specific heat-pump manufacturer, model number, AHRI combination, or low-temperature capacity is publicly identified for the recommended conversion. Electrical-upgrade scope and trade responsibility are not verified. Gas-line decommissioning scope is not verified. Current 2026 Xcel rebate amount and stacking rules are not confirmed by the reviewed official Xcel sources. Public pricing is range-based and incentive-dependent rather than a binding quote. No independently verified customer-outcome or installation-quality evidence was established ^[6]. One platform reported service quality inconsistency across regional locations, with an Indianapolis location showing a 3.0/5 rating and a one-star report of repeated no-shows ^[227].

Pricing or cost summary. Comfort Crew publicly advertises a heat-pump project range of $13,000–$24,000, permits and inspection included, claimed incentives applied upfront of $900–$13,250, and financing starting at 0% APR ^[8]. It also advertises a $500 installation discount on qualifying heat-pump installations and $0 estimates ^[13]. One platform reported a $1,000 installation discount on a coupons page ^[12]. The financing page states that Comfort Crew does not provide, underwrite, or guarantee financing and that lender approval is required ^[13].

Where platforms disagreed. Comfort Crew advertises up to $2,250 per ton from Xcel Energy, while the official Xcel rebate documents found in search results were older documents showing different amounts, including $2,200 for qualifying cold-climate heat pumps ^[167]. One platform reported that Xcel rebates for cold-climate units drop 33% on October 1, 2026, from $2,250 to $1,500 per ton ^[216]. Another platform reported that the federal HEEHR rebate no longer covers fuel switching per DOE Notice 26-2 ^[189]. Fit ratings ranged from strong (Grok) to good (Perplexity) to mixed (Claude, ChatGPT) to uncertain (DeepSeek, Kimi).

What this study reveals

Questions explored

• What does the cross-platform AI study reveal about how heat pump conversion contractors are recommended in 2026?
• Why do AI platforms recommend regional heat pump conversion specialists instead of national HVAC brands?

Three structural patterns emerge from the seven entity evidence bundles.

Regional specialization dominates. Every ranked entity has a documented geographic limit. Pro Build serves Massachusetts only ^[58]. Superior Co-Op serves a 50+ mile radius from Cambridge, New York, plus parts of Vermont ^[89]. Elephant Energy serves Colorado, Massachusetts, and Los Angeles ^[136]. EDGE Energy serves Maryland, DC, and Virginia, with a separate Maine operation ^[21]. Zero Homes serves Colorado, Minnesota, Illinois, Massachusetts, and parts of California ^[192]. Comfort Crew centers on the Denver metro and northern Front Range ^[14]. No national HVAC brand appears in the qualifying set.

Multi-trade capability is the differentiator. The top-ranked entity is the one whose evidence bundle most consistently shows HVAC, electrical, plumbing or gas fitting, and permitting under one contract [e1:official:C1]. Entities that could not document electrical or gas scope ranked lower or drew uncertain fit ratings from multiple platforms ^[78].

Rebate administration is a marketing battleground, not a settled fact. Pro Build advertises up to $10,000 while official Mass Save 2026 materials state $2,650 per ton up to $8,500 ^[58]. Comfort Crew advertises $2,250 per ton while the reviewed official Xcel documents were older and showed different amounts ^[167]. Multiple platforms reported that the federal 25C credit expired after 2025 and that HEEHR rebates no longer cover fuel switching, which means any contractor marketing that still references those programs may be working from stale information ^[201].

Where the AI Platforms Agreed

Questions explored

• On which points about heat pump conversion contractors did all seven AI platforms agree?

Four points of agreement appear across the evidence bundles.

Manual J sizing is the baseline expectation. Every entity bundle references Manual J or load calculation in some form, and platforms consistently treated its absence or unverifiability as a limitation ^[58].

Gas line decommissioning is the weakest-documented criterion. For six of seven entities, at least one platform rated gas-line decommissioning as unclear or unverified ^[50]. Only Pro Build's bundle shows a platform rating it as an advantage, and even there the scope, permits, and included price were described as unclear ^[50].

Electrical panel upgrades are a common project requirement. Platforms repeatedly noted that gas-to-heat-pump conversions may require panel or service work, and that responsibility for that work is often outside the heat pump installer's scope ^[148].

Company-owned evidence outnumbers independent evidence. The evidence audit shows owned citations outnumbering independent citations for Pro Build (29 owned vs. 8 independent), Superior Co-Op (32 vs. 12), Elephant Energy (33 vs. 17), EDGE Energy (31 vs. 7), and Comfort Crew (15 vs. 20). Only Mitsubishi (31 owned vs. 32 independent) and Zero Homes (19 owned vs. 23 independent) show a more balanced or independent-leaning split.

Where the AI Platforms Disagreed

Questions explored

• Where did the AI platforms disagree about the best heat pump conversion contractors, and what should a buyer do about conflicting claims?

Disagreements cluster in four areas.

Fit ratings diverged sharply for the same entity. Pro Build received strong ratings from Claude, Gemini, and Grok, good ratings from ChatGPT and Perplexity, and uncertain ratings from DeepSeek and Kimi ^[50]. Superior Co-Op received strong ratings from Claude, Gemini, and Grok, a good rating from ChatGPT, a mixed rating from Perplexity, and uncertain ratings from DeepSeek and Kimi ^[92]. Comfort Crew received a strong rating from Grok, a good rating from Perplexity, mixed ratings from Claude and ChatGPT, and uncertain ratings from DeepSeek and Kimi ^[4].

Website retrievability split the platforms. For Pro Build, one platform could not retrieve the official site and found only an ambiguous directory listing ^[230]. For Zero Homes, one platform reported that the official site returned no retrievable content ^[168]. Other platforms retrieved the same sites successfully. This is a research-method difference, not a factual disagreement about the companies.

Rebate amounts and program eligibility conflicted. Pro Build's advertised $10,000 conflicts with official Mass Save 2026 figures ^[58]. Comfort Crew's advertised $2,250 per ton conflicts with older official Xcel documents ^[167]. Platforms also disagreed on whether federal fuel-switching rebates remain available in 2026 ^[201].

Warranty terms conflicted within single companies. Pro Build's pages state both 5-year and 2-year workmanship warranties ^[55]. Superior Co-Op's 12-year parts-and-labor offering overlaps with Mitsubishi's manufacturer warranty in ways that are not clearly divided ^[90]. Mitsubishi offers no standard manufacturer-backed labor warranty, leaving labor coverage to the individual contractor ^[263].

How to compare your options

Questions explored

• What should a buyer check before choosing an HVAC company for a gas furnace to heat pump conversion?
• Which heat pump conversion contractor should a buyer choose if they need documented gas line decommissioning and electrical panel work in one contract?

Start with geography. Six of the seven ranked entities serve defined regions, and only one of them will be available at a given address. Confirm service availability before comparing anything else.

Then match the entity to the buyer's dominant constraint:

• If the project needs one contractor for HVAC, electrical, permitting, and gas work, the top-ranked entity is the only one whose evidence bundle shows all four under advertised in-house licensing [e1:official:C1]. Verify current Mass Save Heat Pump Installer Network status directly, because one platform could not confirm it ^[50].
• If the buyer wants a specific cold-climate equipment line, the Mitsubishi Diamond Contractor route lets the buyer select equipment first, but installer quality varies by contractor and gas-line work is outside the certification scope ^[159].
• If upfront cash flow is the constraint, the entity that applies rebates at point of sale reduces the amount financed, but the buyer should confirm in writing what happens if a rebate is denied or delayed ^[134].
• If the buyer wants no in-home sales visit, the virtual-first platform offers a digital assessment, but the buyer should confirm how concealed conditions, duct leakage, and unusual electrical conditions are handled ^[176].
• If the buyer is in Xcel Energy territory, confirm the current rebate amount directly with Xcel rather than relying on contractor marketing, because the reviewed official documents were older and showed different figures ^[167].

For a broader view of contractors beyond this niche, the hvac installation and repair directory lists additional categories.

Methodology

This index was produced from a single standardized prompt sent once to each of seven AI platforms on 2026-09-30. The prompt asked which providers would be recommended for a homeowner who wants to eliminate a gas furnace and convert to an all-electric heat pump, with specific requirements for cold-climate sizing, electrical panel upgrades, rebate navigation, and safe gas line decommissioning.

Platforms included: ChatGPT (gpt-5.6-luna, native search), Claude (claude-haiku-4-5-20251001, native search), DeepSeek (deepseek-v4-flash, no search), Grok (x-ai/grok-4.3, server tool search), Perplexity (perplexity/sonar, native options), Kimi (moonshotai/kimi-k2.6, web plugin), and Gemini (gemini-3.5-flash, native search).

Entities qualified for the final ranking if they were named by at least two platforms during ranking discovery. Forty-two unique entities were named across all platforms; seven met the two-mention threshold.

The ranking order is determined by platform mentions first, then average listed position, then best listed position. The final ranking table is the sole authority for rank, platform mentions, platform share, average rank, and best rank. Platform mentions count only ranking-discovery mentions and do not reflect the number of platforms that later completed a fit assessment.

Each qualifying entity received a structured evidence bundle covering fit assessment, use-case findings, pricing and terms, strengths, limitations, better-alternative conditions, factual conflicts, verification questions, and a final verdict. Citations are platform-reported evidence, not independently verified facts.

Research limitations

One prompt, one run. The study used a single standardized prompt sent once to each platform. AI answers can vary by date, wording, location, account state, model, interface, browsing configuration, and the sources retrieved. A repeat run could produce different results.

Platform-reported dates differ from the run date. The authoritative research date is 2026-09-30. Platform-reported research dates were 2026-09-30 for ChatGPT, Claude, Grok, Perplexity, Kimi, and Gemini, but DeepSeek reported 2026-02-14 for Pro Build, 2026-01-15 for Superior Co-Op, 2026-06-12 for Elephant Energy, 2026-06-15 for Mitsubishi, 2026-01-15 for EDGE Energy, 2026-01-15 for Zero Homes, and 2026-01-15 for Comfort Crew. These are provenance metadata and do not independently prove freshness.

Company-owned citations materially outnumber independent citations. Across the seven bundles, owned citations total 178 and independent citations total 129, with 8 unclear. Company claims should not be described as independently verified.

Not all platforms completed fit assessments for every entity. Comfort Crew received usable fit assessments from 6 of 7 platforms. Fit findings should not be described as unanimous.

Website retrievability varied. For Pro Build and Zero Homes, at least one platform could not retrieve the official website content during research, which limited verification of company claims.

URLs were not independently validated. The supplied URLs were collected from platform responses and were not independently validated by the writer stage.

No-search model claims require verification. Deepseek ran without search enabled, so its claims about official program rules and third-party records require explicit verification before being treated as current facts.

Platform recommendations are market intelligence, not customer reviews. A high ranking reflects how often and how highly AI platforms named an entity, not proof of installation quality, licensing, insurance, or customer satisfaction.

The consensus assessment

Pro Build Home Services is the consensus leader for gas furnace to heat pump conversion in this 7-platform study, named by 3 of 7 platforms at an average listed position of 1.0. Its evidence bundle is the only one that shows all four topic criteria - cold-climate sizing, electrical upgrade knowledge, rebate assistance, and gas line decommissioning - addressed by a single contractor with advertised in-house licensing, though its service area is limited to Massachusetts and its Mass Save participation was not independently verified.

Superior Co-Op HVAC is the strongest alternative for Upstate New York and Vermont homeowners who want Mitsubishi Hyper-Heat equipment with a Manual J requirement tied to a written comfort guarantee. Elephant Energy is the strongest alternative for buyers in Colorado, Massachusetts, or Los Angeles who want rebates applied upfront and a managed electrification process. Mitsubishi Electric Certified Installers (Diamond Contractors) is the best route for buyers who want to select equipment first, provided they verify the individual contractor's sizing, electrical, and gas-line scope.

EDGE Energy, Zero Homes, and Comfort Crew each serve narrower buyer profiles with more documented uncertainty. EDGE Energy bundles energy audits with conversion in the DMV. Zero Homes offers a virtual-first process in five states. Comfort Crew serves the Colorado Front Range with Xcel rebate coordination, but its advertised rebate amount conflicts with older official utility documents.

No ranked entity should be selected without written verification of the exact cold-climate equipment, Manual J sizing, electrical scope, current rebate eligibility, and gas-line decommissioning responsibilities.

Frequently Asked Questions

What is the best HVAC company for switching from a gas furnace to an all-electric heat pump in 2026?

Pro Build Home Services ranked first in this 7-platform study, named by 3 of 7 platforms at an average listed position of 1.0. It is limited to Massachusetts. Superior Co-Op HVAC, Elephant Energy, and Mitsubishi Electric Certified Installers (Diamond Contractors) are the strongest alternatives for other regions and buyer needs.

Do AI platforms agree on which heat pump conversion contractor is best?

No. Fit ratings diverged sharply for the same entities. Pro Build received strong ratings from three platforms and uncertain ratings from two. Superior Co-Op received strong ratings from three platforms, a mixed rating from one, and uncertain ratings from two. The ranking order reflects platform mentions and listed positions, not consensus on quality.

Why do most recommended heat pump conversion contractors serve only one region?

Every ranked entity has a documented geographic limit. The topic criteria - cold-climate sizing, electrical upgrade knowledge, rebate assistance, and gas line decommissioning - depend on state licensing, utility programs, and local building codes, which are region-specific.

Does a Mitsubishi Diamond Contractor handle gas line decommissioning?

Mitsubishi's public materials reviewed do not establish a standard Diamond Contractor service, price, or procedure for capping, removing, permitting, or coordinating abandonment of the gas line. This must be confirmed locally with the individual contractor ^[159].

Which heat pump conversion contractor applies rebates upfront?

Elephant Energy publishes upfront pricing with rebates applied at point of sale, showing installation and materials at $17,500–$40,000 with rebates of $800–$20,000 and a total of $0–$39,200 [e3:official:C1]. Comfort Crew also advertises upfront incentive application ^[8].

Are federal heat pump tax credits still available in 2026?

Platform-reported evidence conflicts. One platform reported that the federal 25C tax credit expired December 31, 2025, and that no federal tax credit applies to heat pump conversions in 2026 ^[201]. Another reported that HEEHR rebates no longer cover fuel switching per DOE Program Notice 26-2 ^[189]. Buyers should verify current federal and state incentive status directly.

What should a buyer verify before signing a heat pump conversion contract?

Request a written Manual J load calculation with design temperature, exact outdoor and indoor model numbers with AHRI certification, capacity at the local design temperature, backup-heat configuration, electrical panel load calculation, gas-line decommissioning scope with permits and utility coordination, current rebate eligibility for the specific address, and total installed price before and after incentives.

How much does a gas furnace to heat pump conversion cost?

Platform-reported ranges vary widely. Pro Build publishes $15,000–$28,000 before rebates ^[58]. Elephant Energy publishes $16,000–$40,000 before rebates ^[134]. Comfort Crew publishes $13,000–$24,000 ^[8]. Mitsubishi H2i ducted systems are cited at $10,500–$14,500 installed for 3 tons ^[186]. None of these is a binding quote.

Can a heat pump replace a gas furnace without backup heat in a cold climate?

Mitsubishi states that H2i plus ducted systems provide 100% heating capacity to -10°F and guaranteed heating to -13°F ^[159]. Superior Co-Op publishes claims of 100% capacity to -13°F and operation to -35°F ^[72]. Zero Homes states that most homes do not need backup heat and references approximately -15°F operation ^[176]. These are manufacturer and company claims, not independently verified performance for a specific home.

Sources used in this study

Company-Owned Sources

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13. Trusted HVAC Financing Denver: 0% Loans, Easy Approval: https://comfort-crew.com/hvac-financing-denver/
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