89/100CR Score
Ranked #1 because of its Google rating and availability: 5.0★ from 40 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best HVAC Contractors in Bath, ME (2026)
74 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Bath: Harry’s Heating & A/C, LLC, CR Score 89/100; 5.0★ from 40 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Beaulieu Energy Services, posts 24/7 hours; ranked #2 of 74.
- 6
Most-reviewed: Dog House Heating Air, and Plumbing, LLC, 1,388 Google reviews at 4.8★, the most of 74 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
74 Bath HVAC contractors are ranked here by CR Score, from 8 published factors. 14 are open 24/7, 21 open Saturdays and 19 open Sundays, based on posted hours. The median Google rating is 4.8★ across 74 rated businesses.
Top 10 HVAC contractors in Bath at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Harry’s Heating & A/C, LLC | 89 | 5.0★ (40) | Auburn, 3 mi away | 24/7 | Overall |
| 2 | Beaulieu Energy Services | 88 | 4.9★ (82) | Topsham, 9 mi away | 24/7 | Emergencies |
| 3 | Premier Heating Services,LLC | 86 | 5.0★ (20) | Auburn, 6 mi away | 24/7 | — |
| 4 | Aire Serv of Lewiston | 86 | 4.7★ (363) | Auburn, 23 mi away | 24/7 | — |
| 5 | Bean's Heating and Air | 85 | 4.7★ (29) | Auburn, 11 mi away | 24/7 | — |
| 6 | Dog House Heating Air, and Plumbing, LLC | 83 | 4.8★ (1,388) | Brunswick, 7 mi away | — | Most reviews |
| 7 | D.A. Cressey Heat Pumps & Electric | 83 | 4.2★ (30) | Bath | Sat · Sun · Evenings | — |
| 8 | Excel Mechanical LLC | 82 | 4.8★ (92) | Brunswick, 4 mi away | Sat | — |
| 9 | Mike's HVAC LLC | 82 | 5.0★ (31) | Auburn, 6 mi away | — | — |
| 10 | Bath Heating & Air Conditioning | 81 | 4.4★ (14) | Bath | Sat · Sun · Evenings | — |
The 74 best HVAC contractors in Bath, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Topsham, 9 mi away
88/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 82 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 82 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 380 Lewiston Rd, Topsham, ME 04086
Based in Auburn, 6 mi away
86/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 20 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 20 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Auburn, 23 mi away
86/100CR ScoreRanked #4 because of its Google rating and availability: 4.7★ from 363 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 363 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 31 Mill St, Auburn, ME 04210
Based in Auburn, 11 mi away
85/100CR ScoreRanked #5 because of its Google rating and availability: 4.7★ from 29 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 29 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Brunswick, 7 mi away
83/100CR ScoreRanked #6 because of its Google rating and review volume: 4.8★ from 1,388 Google reviews, the most Google reviews on this list (1,388).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 1,388 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 32 Bath Rd, Brunswick, ME 04011
Based in Bath
83/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.2★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.2★ from 30 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
Based in Brunswick, 4 mi away
82/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 92 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- Harry's Dr, Brunswick, ME 04011
Based in Auburn, 6 mi away
82/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 31 Google reviews
Based in Bath
81/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.4★ from 14 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.4★ from 14 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 65 Centre St, Bath, ME 04530
Based in Auburn, 14 mi away
81/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 4 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Lewiston, 21 mi away
81/100CR ScoreRanked #12 because of its Google rating and availability: 4.2★ from 53 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.2★ from 53 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7 Enterprise St, Lewiston, ME 04240
Based in Bath
81/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.9★ from 106 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 106 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 12 State Rd Unit 2, Bath, ME 04530
#14 Hoffman Heating
Based in Auburn, 21 mi away
80/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#15 Russell's HVAC
Based in Auburn, 24 mi away
80/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 81 Main St #105, Auburn, ME 04210
Based in Topsham, 6 mi away
79/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.6★ from 16 Google reviews, listed on Google as “Heating contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 4.6★ from 16 Google reviews
- Address
- 27 Tedford Rd, Topsham, ME 04086
Based in Brunswick, 7 mi away
79/100CR ScoreRanked #17 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
- Address
- 88 Merrymeeting Rd, Brunswick, ME 04011
Based in Brunswick, 8 mi away
79/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 144 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 144 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 4 Turner St, Brunswick, ME 04011
Based in Brunswick, 7 mi away
79/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 9 Google reviews, listed on Google as “Heating contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 9 Google reviews
- Address
- 1 Middle St, Brunswick, ME 04011
#20 D & M Heating
Based in Auburn, 16 mi away
79/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Yarmouth, 17 mi away
79/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 406 Google reviews, listed on Google as “Heating contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 406 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 353 US-1, Freeport, ME 04032
Based in Buxton, 22 mi away
79/100CR ScoreRanked #22 because of its Google rating and availability: 4.7★ from 43 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 43 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Lewiston, 22 mi away
78/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 391 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 391 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 914 Sabattus St, Lewiston, ME 04240
Based in Lewiston, 22 mi away
78/100CR ScoreRanked #24 because of its Google rating and availability: 4.6★ from 8 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.6★ from 8 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 165 Warren Ave, Lewiston, ME 04240
Based in Auburn, 22 mi away
77/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
HVAC contractors ranked #26 to #50
#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 74 ranked HVAC contractors here; the rest are on their profiles.
Also serving Bath
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 |
|---|---|---|
| 207 Solar & Heat Pumps | 5.0★ (1) | In Bath |
| Adlers Plumbing & Heating | 3.0★ (4) | 23 mi |
| Agility HVAC, LLC | 5.0★ (1) | 20 mi |
| Al's Plumbing & Heating | 17 mi | |
| Bissonnette Plumbing & Heating | 1.0★ (1) | 24 mi |
| C & M Plumbing & Heating Inc | 5.0★ (1) | 22 mi |
| Coastal Home Improvements | 11 mi | |
| Cold Climate Home | In Bath | |
| Ideal Heating & Cooling LLC | 1.0★ (1) | 23 mi |
| Maine Island Energy | 5.0★ (2) | 22 mi |
| Maine Land Enterprises | In Bath | |
| Melcher Plumbing and Heating | 5.0★ (2) | 16 mi |
| Michaud Plumbing & Heating Inc | 4.0★ (4) | 22 mi |
| Midcoast Heating & Cooling | 1.0★ (3) | 9 mi |
| North Heat LLC | 9 mi | |
| Oceanic Heating & Cooling | 6 mi | |
| Peter J Lajoie Plumbing & Heating | 5.0★ (1) | 22 mi |
| Precision HVAC | 5.0★ (2) | 15 mi |
| Robert Dulac Plumbing & Heating | 1.0★ (1) | 21 mi |
| Sheehan Electric LLC | 5.0★ (10) | 16 mi |
How much do HVAC contractors cost in Bath?
National price ranges in USD, not adjusted for Bath. 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 |
When to hire an HVAC contractor in Maine
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.
How we ranked Bath HVAC contractors
We scored 74 Bath 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 Bath 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 |
HVAC contractors in Bath: frequently asked questions
Who is the best HVAC contractor in Bath?
By CR Score, the highest-ranked HVAC contractor in Bath, ME is Harry’s Heating & A/C, LLC with a CR Score of 89/100. It has 5.0★ from 40 Google reviews. It is open 24/7. Beaulieu Energy Services (#2) and Premier Heating Services,LLC (#3) follow. We ranked 74 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Bath?
ContractorsRanked ranks 74 HVAC contractors serving Bath, ME. 5 of them are based in Bath; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Bath are open 24/7?
14 ranked HVAC contractors in Bath post 24/7 hours. The highest-ranked are Harry’s Heating & A/C, LLC (#1), Beaulieu Energy Services (#2) and Premier Heating Services,LLC (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Bath work on weekends?
21 of 74 ranked HVAC contractors post Saturday hours and 19 post Sunday hours. The highest-ranked open Saturdays are Harry’s Heating & A/C, LLC (#1), Beaulieu Energy Services (#2) and Premier Heating Services,LLC (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Bath?
AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Bath. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Bath HVAC contractors have?
The median Google rating among 74 rated HVAC contractors in Bath is 4.8★, with a median of 20 reviews. Dog House Heating Air, and Plumbing, LLC has the most, 1,388 reviews, and ranks #6. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in Bath?
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.
How does ContractorsRanked rank HVAC contractors?
Each HVAC contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Bath
- October 2026: CR Scores recalculated for 74 hvac contractors serving Bath.
More HVAC contractors and Bath pages
HVAC contractors near Bath
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