155 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Lebanon: Gammon’s Heating & Cooling, CR Score 89/100; 4.8★ from 557 Google reviews; open 24/7.
Best for emergencies (open 24/7): HomeWiz, posts 24/7 hours; ranked #2 of 155.
Most-reviewed: Jerry's Plumbing & Heating, 553 Google reviews at 4.9★, the most of 155 ranked after Gammon’s Heating & Cooling; ranked #24.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
155 Lebanon HVAC contractors are ranked here by CR Score, from 8 published factors. 34 are open 24/7, 53 open Saturdays and 38 open Sundays, based on posted hours. The median Google rating is 4.9★ across 155 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Gammon’s Heating & Cooling | 89 | 4.8★ (557) | Saco, 24 mi away | 24/7 | Overall |
| 2 | HomeWiz | 87 | 4.6★ (163) | Biddeford, 15 mi away | 24/7 | Emergencies |
| 3 | HeatPro HVAC | 86 | 4.8★ (138) | Chester, 23 mi away | 24/7 | — |
| 4 | CircumVent LLC | 86 | 5.0★ (40) | Eliot, 15 mi away | 24/7 | — |
| 5 | Cold Creek HVAC | 85 | 5.0★ (5) | Lebanon | 24/7 | — |
| 6 | HomeStyle Heating and Air LLC | 85 | 5.0★ (26) | Barrington, 16 mi away | 24/7 | — |
| 7 | Freedom Air Mechanical, LLC | 85 | 4.6★ (8) | Sanford, 4 mi away | 24/7 | — |
| 8 | Key Heating & Air Conditioning | 85 | 4.6★ (74) | Gilford, 19 mi away | 24/7 | — |
| 9 | Heritage Home Service | 84 | 4.9★ (45) | Portsmouth, 22 mi away | 24/7 | — |
| 10 | Stevens Mechanical | 83 | 4.9★ (9) | Rochester, 12 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and review volume: 4.8★ from 557 Google reviews, the most Google reviews on this list (557).
Based in Biddeford, 15 mi away
Ranked #2 because of its Google rating and availability: 4.6★ from 163 Google reviews, open 24/7.
Based in Chester, 23 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 138 Google reviews, open 24/7.
Based in Eliot, 15 mi away
Ranked #4 because of its Google rating and availability: 5.0★ from 40 Google reviews, open 24/7.
Based in Lebanon
Ranked #5 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based in Barrington, 16 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 26 Google reviews, open 24/7.
Based in Sanford, 4 mi away
Ranked #7 because of its Google rating and availability: 4.6★ from 8 Google reviews, open 24/7.
Based in Gilford, 19 mi away
Ranked #8 because of its Google rating and availability: 4.6★ from 74 Google reviews, open 24/7.
Based in Portsmouth, 22 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 45 Google reviews, open 24/7.
Based in Rochester, 12 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 9 Google reviews, open 24/7.
Based in Lebanon
Ranked #11 because of its Google rating and availability: 2.0★ from 4 Google reviews, open 24/7.
Based in South Berwick, 13 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 533 Google reviews, listed on Google as “HVAC contractor”.
Based in Barrington, 17 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 11 Google reviews, open 24/7.
Based in Eliot, 18 mi away
Ranked #14 because of its Google rating and availability: 4.9★ from 58 Google reviews, open 24/7.
Based in Auburn, 24 mi away
Ranked #15 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based in Chester, 20 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 24/7.
Based in Biddeford, 20 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “HVAC contractor”.
Based in Barrington, 21 mi away
Ranked #18 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
Based in Lebanon
Ranked #19 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based in Rochester, 10 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based in Rochester, 9 mi away
Ranked #21 because of its Google rating and trade focus: 4.3★ from 42 Google reviews, listed on Google as “HVAC contractor”.
Based in South Berwick, 11 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 243 Google reviews, listed on Google as “HVAC contractor”.
Based in Old Orchard Beach, 25 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 178 Google reviews, open 24/7.
Based in Biddeford, 18 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 553 Google reviews, listed on Google as “HVAC contractor”.
Based in Gilford, 14 mi away
Ranked #25 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 155 ranked HVAC contractors here; the rest are on their profiles.
20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A P Baker Plumbing & Heating | 5.0★ (2) | 15 mi |
| B & K Heating | 3.6★ (7) | 18 mi |
| Berger HVAC, LLC | 3.0★ (4) | 23 mi |
| Brulotte Inc | 5.0★ (4) | 15 mi |
| Cochecho Plumbing & Heating | 4.7★ (14) | 14 mi |
| Complete Mechanical LLC | 5.0★ (2) | 18 mi |
| David Glover Plumbing & Heating | 3.0★ (2) | 19 mi |
| Denis Lamontagne Plumbing & Heating, Inc. | 5.0★ (2) | 13 mi |
| Diamond Hill Plumbing & Heating LLC | 4.6★ (9) | 6 mi |
| Forced Air | 5.0★ (1) | 5 mi |
| J Chase HVAC Service | 4.0★ (4) | 13 mi |
| J@S Heating | In Lebanon | |
| Lordbrooks plumbing | 3.0★ (2) | 15 mi |
| Multispec | 3.5★ (2) | 21 mi |
| Plante Oil Burner Services | 3.0★ (2) | 4 mi |
| Rod's HVAC | 3.5★ (2) | 20 mi |
| Rymes Propane & Oil | 2.8★ (49) | 10 mi |
| Townsend Plumbing and Heating | 4.5★ (2) | 25 mi |
| Tremblay & Son HVAC | 3.3★ (12) | 8 mi |
| Tyler's Sheet Metal Shop Inc | 5.0★ (2) | 24 mi |
National price ranges in USD, not adjusted for Lebanon. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Maine, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
We scored 155 Lebanon HVAC contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Lebanon data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |