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Emergency HVAC Contractors in Lebanon, ME (2026)

Top 50 of 155 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in Lebanon: Gammon’s Heating & Cooling, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in Lebanon at a glance

Top emergency HVAC contractors in Lebanon at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Gammon’s Heating & Cooling624.8★ (557)Saco, 24 mi away24/7
2HomeWiz614.6★ (163)Biddeford, 15 mi away24/7
3Affordable Comfort604.6★ (11)Lebanon24/7
4HeatPro HVAC594.8★ (138)Chester, 23 mi away24/7
5CircumVent LLC595.0★ (40)Eliot, 15 mi away24/7
6Cold Creek HVAC595.0★ (5)Lebanon24/7
7Key Heating & Air Conditioning594.6★ (74)Gilford, 19 mi away24/7
8Freedom Air Mechanical, LLC594.6★ (8)Sanford, 4 mi away24/7
9HomeStyle Heating and Air LLC585.0★ (26)Barrington, 16 mi away24/7
10CMC Mechanical Services LLC582.0★ (4)Lebanon24/7

Call an emergency HVAC contractor in Lebanon now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in Lebanon, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 155 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 HomeWiz

    Based in Biddeford, 15 mi away

    61/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.6★ from 163 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 163 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    694 Post Rd, Wells, ME 04090
    View profile for HomeWiz(207) 506-2232

  3. #3 Affordable Comfort

    Based in Lebanon

    60/100CR Score

    Ranked #3 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.6★ from 11 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    67 Deering Ridge Rd, Shapleigh, ME 04076
    View profile for Affordable Comfort(207) 636-9995

  4. #4 HeatPro HVAC

    Based in Chester, 23 mi away

    59/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 138 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 138 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for HeatPro HVAC(603) 923-3103

  5. #5 CircumVent LLC

    Based in Eliot, 15 mi away

    59/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 40 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for CircumVent LLC(207) 977-4143

  11. #11 Heritage Home Service

    Based in Portsmouth, 22 mi away

    57/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 45 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    28 Deer St ste 201, Portsmouth, NH 03801
    View profile for Heritage Home Service(603) 663-0531

  12. #12 Tremblay & Son HVAC

    Based in Rochester, 8 mi away

    57/100CR Score

    Ranked #12 because of its Google rating and trade focus: 3.3★ from 12 Google reviews, listed on Google as “Heating contractor”.

    • 3.3★ from 12 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    40 Old Milton Rd, Rochester, NH 03868
    View profile for Tremblay & Son HVAC(603) 332-0980

  13. #13 Stevens Mechanical

    Based in Rochester, 12 mi away

    57/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.9★ from 9 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 9 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    151 Flagg Rd, Rochester, NH 03839
    View profile for Stevens Mechanical(603) 394-5151

  22. #22 Townsend Energy

    Based in Portsmouth, 24 mi away

    55/100CR Score

    Ranked #22 because of its Google rating and trade focus: 3.7★ from 71 Google reviews, listed on Google as “HVAC contractor”.

    • 3.7★ from 71 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    225 Greenleaf Ave, Portsmouth, NH 03801
    View profile for Townsend Energy(603) 379-3655

Top 50 of 155 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in Lebanon, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Superior Energy Solutions HVAC553.7★ (21)22 mi
27Maine Energy Experts545.0★ (178)25 mi
28BRR HVAC/R535.0★ (5)23 mi
29Alpha Tech Refrigeration535.0★ (5)25 mi
30Belknap Plumbing and Heating524.0★ (4)23 mi
31Berger HVAC, LLC523.0★ (4)23 mi
32Capstone Mechanical523.4★ (5)25 mi
33Fabrizio John Plumbing and Heating504.5★ (8)22 mi
34Ted Karmeris Dependable Heating494.8★ (16)9 mi
35O'Lord Energy Services493.0★ (8)In Lebanon
36Buckeye Plumbing and Heating, LLC495.0★ (3)22 mi
37Affordable Oil484.3★ (21)12 mi
38Sunrise Heating and Cooling474.8★ (30)20 mi
39Rymes Propane & Oil472.8★ (49)10 mi
40Mousam Valley Tech LLC474.6★ (8)10 mi
41Integrity Comfort Heating And Cooling475.0★ (533)13 mi
42Seaside Heating And Cooling465.0★ (29)24 mi
43Linscott Electric, LLC455.0★ (243)11 mi
44Jerry's Plumbing & Heating454.9★ (553)18 mi
45P Gagnon & Son454.5★ (487)11 mi
46Quality Climate Control LLC454.4★ (7)17 mi
47J Chase HVAC Service444.0★ (4)13 mi
48Brulotte Inc445.0★ (4)15 mi
49High Flow Plumbing & Heating, LLC444.2★ (5)In Lebanon
50Champagne's Energy Inc442.7★ (89)18 mi

How we ranked emergency HVAC contractors in Lebanon

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Lebanon: questions

Which HVAC contractors in Lebanon are open 24/7?

25 on this list post 24/7 hours, including Gammon’s Heating & Cooling, HomeWiz, Affordable Comfort, HeatPro HVAC and CircumVent LLC.

Who is ranked #1 for emergency heating and cooling in Lebanon, ME?

Gammon’s Heating & Cooling is #1, with a CR Score of 62 out of 100 on emergency weights.

How are emergency HVAC contractors in Lebanon ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

23 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Lebanon

  1. October 2026: CR Scores recalculated for 155 hvac contractors serving Lebanon.
  2. October 2026: 3 duplicate listings merged.

More emergency and heating and cooling pages