156 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Harpswell Center: Aire Serv of Southern Maine, CR Score 62/100; 4.9★ from 755 Google reviews; open 24/7.
Best for emergencies (open 24/7): Heritage Home Service, posts 24/7 hours; ranked #2 of 156.
Most-reviewed: Dog House Heating Air, and Plumbing, LLC, 1,388 Google reviews at 4.8★, the most of 156 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
156 Harpswell Center HVAC contractors are ranked here by CR Score, from ten published factors. 31 are open 24/7, 47 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 4.8★ across 156 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Aire Serv of Southern Maine | 62 | 4.9★ (755) | Buxton, 19 mi away | 24/7 | Overall |
| 2 | Heritage Home Service | 61 | 4.8★ (630) | Portland, 20 mi away | 24/7 | Emergencies |
| 3 | Pine State Services | 61 | 4.7★ (1,112) | Buxton, 23 mi away | 24/7 | — |
| 4 | Dog House Heating Air, and Plumbing, LLC | 61 | 4.8★ (1,388) | Brunswick, 8 mi away | — | Most reviews |
| 5 | Beaulieu Energy Services | 60 | 4.9★ (82) | Topsham, 10 mi away | 24/7 | — |
| 6 | 207 Plumbing and Heating | 60 | 4.7★ (429) | Gorham, 20 mi away | 24/7 | — |
| 7 | Royal River Heat Pumps | 59 | 4.9★ (406) | Yarmouth, 8 mi away | — | — |
| 8 | Aire Serv of Lewiston | 59 | 4.7★ (363) | Auburn, 23 mi away | 24/7 | — |
| 9 | Harry’s Heating & A/C, LLC | 58 | 5.0★ (40) | Auburn, 14 mi away | 24/7 | — |
| 10 | Martel Mechanical | 58 | 5.0★ (35) | Buxton, 15 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 755 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portland, 20 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 630 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 23 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 1,112 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brunswick, 8 mi away
Ranked #4 because of its Google rating and review volume: 4.8★ from 1,388 Google reviews, the most in Harpswell Center.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Topsham, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 82 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gorham, 20 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 429 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Yarmouth, 8 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 406 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 23 mi away
Ranked #8 because of its Google rating and trade focus: 4.7★ from 363 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 14 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 15 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 10 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 11 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 29 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 22 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 488 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brunswick, 8 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 144 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brunswick, 10 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 92 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 9 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Gorham, 21 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 546 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bath, 11 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 106 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 18 mi away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 23 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lewiston, 23 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 391 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 22 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 508 Google reviews, listed on Google as “Furnace repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Portland, 19 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 18 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Buxton, 25 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bath, 11 mi away
Ranked #24 because of its Google rating and trade focus: 4.2★ from 30 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 13 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
#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 156 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 |
|---|---|---|
| AirTemp Heating & Air Conditioning | 3.3★ (7) | 21 mi |
| Carlo Doria Plumbing & Heating | 5.0★ (1) | 18 mi |
| CC Mechanical | 5.0★ (2) | 18 mi |
| David Blackwell Plumbing & Heating | 3.9★ (27) | 6 mi |
| Efficient Air Systems, Inc | 5.0★ (1) | 18 mi |
| HVAC Services Inc. | 2.9★ (8) | 22 mi |
| John Scott Plumbing and Heating | 4.3★ (11) | 18 mi |
| Maine Controls | 5.0★ (1) | 16 mi |
| Maine Heating & Air Conditioning | 5.0★ (1) | 18 mi |
| Maine Island Energy | 5.0★ (2) | 11 mi |
| Martin Heating | 5.0★ (5) | 20 mi |
| McGuire Controls | 5.0★ (1) | 16 mi |
| Northeast Technical Institute, HVAC Shop | 5.0★ (2) | 21 mi |
| Paul's Oil Burner Services | 4.0★ (22) | 23 mi |
| Powell Heating Services Inc | 5.0★ (17) | 23 mi |
| Precision HVAC | 5.0★ (2) | 4 mi |
| Snyder Plumbing & Heating | 5.0★ (2) | 17 mi |
| Sturgis Plumbing & Heating | 4.1★ (12) | 25 mi |
| Superior Energy Solutions | 5.0★ (1) | 15 mi |
| Thayer, LLC | 3.1★ (14) | 24 mi |
National price ranges in USD, not adjusted for Harpswell Center. 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 156 Harpswell Center HVAC contractors on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Harpswell Center data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |