42 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Orono: Dave's Mechanical Maintenance, CR Score 61/100; 5.0★ from 197 Google reviews.
Best for emergencies (open 24/7): Spencer Plumbing And Heating, posts 24/7 hours; ranked #24 of 42.
Most-reviewed: Hancock Chimney and Home Services, 712 Google reviews at 4.9★, the most of 42 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
42 Orono HVAC contractors are ranked here by CR Score, from ten published factors. 2 are open 24/7, 12 open Saturdays and 5 open Sundays, based on posted hours. The median Google rating is 4.4★ across 42 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Dave's Mechanical Maintenance | 61 | 5.0★ (197) | Orono | — | Overall |
| 2 | MAC Heat Pumps | 60 | 4.9★ (528) | Bangor, 10 mi away | — | — |
| 3 | Bangor Heating and Air Conditioning | 58 | 4.7★ (43) | Bangor, 8 mi away | Sat · Sun · Evenings | — |
| 4 | Valley Home Services | 57 | 4.8★ (228) | Bangor, 13 mi away | — | — |
| 5 | Keep It Clean Heat Pumps | 56 | 5.0★ (138) | Belfast, 22 mi away | Sat | — |
| 6 | Mr.HeatPump | 55 | 4.6★ (11) | Orono | Sat | — |
| 7 | Twin City Home Comfort | 55 | 5.0★ (42) | Brewer, 10 mi away | — | — |
| 8 | Top Notch Heating & Air Conditioning Bangor | 55 | 4.4★ (8) | Bangor, 8 mi away | Sat · Sun · Evenings | — |
| 9 | Bill’s Heat Pumps | 55 | 5.0★ (22) | Brewer, 4 mi away | — | — |
| 10 | Hancock Chimney and Home Services | 54 | 4.9★ (712) | Ellsworth, 17 mi away | Sat | Most reviews |
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: 5.0★ from 197 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 10 mi away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 528 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.7★ from 43 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 13 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 228 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Belfast, 22 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 138 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orono
Ranked #6 because of its Google rating and trade focus: 4.6★ from 11 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brewer, 10 mi away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.4★ from 8 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brewer, 4 mi away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ellsworth, 17 mi away
Ranked #10 because of its Google rating and review volume: 4.9★ from 712 Google reviews, the most in Orono.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brewer, 8 mi away
Ranked #11 because of its Google rating and trade focus: 4.2★ from 110 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 7 mi away
Ranked #12 because of its Google rating and trade focus: 4.3★ from 12 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Bangor, 9 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Old Town, 3 mi away
Ranked #14 because of its Google rating and trade focus: 4.1★ from 24 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brewer, 7 mi away
Ranked #15 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 10 mi away
Ranked #16 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Old Town, 3 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brewer, 5 mi away
Ranked #18 because of its Google rating and trade focus: 4.7★ from 58 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 8 mi away
Ranked #19 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Bangor, 13 mi away
Ranked #20 because of its Google rating and trade focus: 4.2★ from 21 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brewer, 9 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 10 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Old Town, 4 mi away
Ranked #23 because of its Google rating and trade focus: 4.5★ from 37 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 8 mi away
Ranked #24 because of its Google rating and trade focus: 1.7★ from 6 Google reviews, listed on Google as “Contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bangor, 10 mi away
Ranked #25 because of its Google rating and trade focus: 3.4★ from 17 Google reviews, listed on Google as “HVAC 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 #42, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | XL Mechanical & Energy Management | 49 | 3.4★ (7) | 10 mi |
| 27 | One Stop Home Repair | 49 | 4.1★ (118) | In Orono |
| 28 | Stonewall Plumbing and Heating, LLC | 49 | 2.3★ (3) | 12 mi |
| 29 | Fabian Oil | 49 | 3.1★ (25) | 11 mi |
| 30 | Temperature Solutions, LLC | 49 | 3.0★ (6) | 11 mi |
| 31 | Mechanical Services | 49 | 4.7★ (3) | 11 mi |
| 32 | The Flue Fighters | 49 | 5.0★ (10) | 3 mi |
| 33 | D.A. Pearson Heating Oils, LLC | 48 | 3.1★ (61) | 12 mi |
| 34 | Granville Stone & Hearth | 48 | 4.1★ (64) | 9 mi |
| 35 | Precision Plumbing and Heating | 48 | 4.3★ (22) | 19 mi |
| 36 | Downeast Outdoor Boiler | 48 | 4.8★ (6) | 19 mi |
| 37 | Art Landry Inc Plumbing & Heating | 48 | 3.3★ (12) | 3 mi |
| 38 | Hogan's Heating | 47 | 4.8★ (5) | 23 mi |
| 39 | Coastal Energy | 47 | 4.0★ (9) | 24 mi |
| 40 | Harley Plumbing & Heating Plus | 46 | 3.2★ (48) | 9 mi |
| 41 | JP Roberts Plumbing and Heating | 46 | 4.1★ (9) | 12 mi |
| 42 | Haass Plumbing & Heating | 46 | 4.2★ (6) | 18 mi |
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 |
|---|---|---|
| Airotherm Heating & Air Conditioning | 5.0★ (1) | 9 mi |
| Anderson's Plumbing & Heating L.L.C | 5.0★ (1) | 3 mi |
| CDS Mechanical, LLC | 5.0★ (2) | In Orono |
| Central Maine Refrigeration | 4.0★ (1) | 8 mi |
| Cormier's Plumbing & Heating | In Orono | |
| Crawford Home + Heat LLC | In Orono | |
| EHR LLC | 5.0★ (1) | 13 mi |
| Elco Electric Inc. | 2.5★ (2) | 9 mi |
| General Mechanix | 7 mi | |
| Golden Heat Inc. | 5.0★ (2) | In Orono |
| Hanna's Plumbing Heating | 1.0★ (2) | 13 mi |
| Heat Pump Rebates | 5.0★ (2) | 6 mi |
| Heat Pump Rebates | 5.0★ (1) | 6 mi |
| JM Heat Pump Cleaning | 5.0★ (1) | 7 mi |
| Penobscot Temperature Controls | 5.0★ (1) | 9 mi |
| Refrigeration Heating & Air Conditioning | 4.0★ (1) | 7 mi |
| Simply easy lawn care | 5.0★ (1) | 7 mi |
| Williams Plumbing & Heating | 1.0★ (1) | 7 mi |
| Woods Heating | 1.0★ (1) | In Orono |
| X L Air Heating & Cooling | 4.0★ (1) | 8 mi |
National price ranges in USD, not adjusted for Orono. 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 42 Orono 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 Orono 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 |