1,034 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Stamford: Air Solutions, Inc., CR Score 64/100; 4.8★ from 718 Google reviews; open 24/7.
Best for emergencies (open 24/7): EXTRAVE Heating & Cooling, posts 24/7 hours; ranked #2 of 1,034.
Most-reviewed: Universe Home Services, 6,771 Google reviews at 4.8★, the most of 1,034 ranked; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,034 Stamford HVAC contractors are ranked here by CR Score, from ten published factors. 319 are open 24/7, 601 open Saturdays and 438 open Sundays, based on posted hours. The median Google rating is 4.8★ across 1,034 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Air Solutions, Inc. | 64 | 4.8★ (718) | Stamford | 24/7 | Overall |
| 2 | EXTRAVE Heating & Cooling | 64 | 5.0★ (209) | Stamford | 24/7 | Emergencies |
| 3 | ENCON Heating and Air Conditioning | 63 | 4.9★ (211) | Stamford | 24/7 | — |
| 4 | Sila Heating, Air Conditioning, Plumbing & Electrical | 63 | 4.8★ (1,821) | White Plains, 12 mi away | 24/7 | — |
| 5 | Pickwick Plumbing & Heating | 62 | 5.0★ (297) | Greenwich, 7 mi away | 24/7 | — |
| 6 | Bruni & Campisi, Inc. | 62 | 4.7★ (3,366) | Greenburgh, 15 mi away | 24/7 | — |
| 7 | Green Mechanicals Heating & Cooling LLC | 62 | 4.8★ (179) | Stamford | 24/7 | — |
| 8 | Astacio Heating, Cooling, Plumbing & Electrical | 62 | 4.8★ (1,998) | Norwalk, 8 mi away | Sat · Sun · Evenings | — |
| 9 | FAIRCONN Plumbing And Heating LLC | 62 | 5.0★ (101) | Stamford | 24/7 | — |
| 10 | Tragar Home Services | 62 | 4.9★ (3,757) | Hicksville, 21 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 718 Google reviews, listed on Google as “HVAC contractor”.
Based in Stamford
Ranked #2 because of its Google rating and trade focus: 5.0★ from 209 Google reviews, listed on Google as “HVAC contractor”.
Based in Stamford
Ranked #3 because of its Google rating and trade focus: 4.9★ from 211 Google reviews, listed on Google as “HVAC contractor”.
Based in White Plains, 12 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,821 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenwich, 7 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 297 Google reviews, listed on Google as “Heating contractor”.
Based in Greenburgh, 15 mi away
Ranked #6 because of its Google rating and trade focus: 4.7★ from 3,366 Google reviews, listed on Google as “HVAC contractor”.
Based in Stamford
Ranked #7 because of its Google rating and trade focus: 4.8★ from 179 Google reviews, listed on Google as “HVAC contractor”.
Based in Norwalk, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 1,998 Google reviews, listed on Google as “HVAC contractor”.
Based in Stamford
Ranked #9 because of its Google rating and trade focus: 5.0★ from 101 Google reviews, listed on Google as “Heating contractor”.
Based in Hicksville, 21 mi away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 3,757 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmingdale, 22 mi away
Ranked #11 because of its Google rating and review volume: 4.8★ from 6,771 Google reviews, the most in Stamford.
Based in Eastchester, 16 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 1,440 Google reviews, listed on Google as “HVAC contractor”.
Based in Bronxville, 18 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 2,459 Google reviews, listed on Google as “HVAC contractor”.
Based in Port Chester, 8 mi away
Ranked #14 because of its Google rating and trade focus: 4.5★ from 1,257 Google reviews, listed on Google as “HVAC contractor”.
Based in Port Chester, 7 mi away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 199 Google reviews, listed on Google as “HVAC contractor”.
Based in Farmingdale, 24 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 4,690 Google reviews, listed on Google as “HVAC contractor”.
Based in Stamford
Ranked #17 because of its Google rating and trade focus: 4.9★ from 60 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenburgh, 14 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 549 Google reviews, listed on Google as “HVAC contractor”.
Based in Larchmont, 18 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 976 Google reviews, listed on Google as “HVAC contractor”.
Based in Port Washington, 18 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 1,212 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenwich, 5 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 83 Google reviews, listed on Google as “HVAC contractor”.
Based in Stamford
Ranked #22 because of its Google rating and trade focus: 5.0★ from 94 Google reviews, listed on Google as “HVAC contractor”.
Based in Bridgeport, 17 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 529 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenburgh, 14 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 306 Google reviews, listed on Google as “HVAC contractor”.
Based in Ansonia, 16 mi away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 565 Google reviews, listed on Google as “HVAC contractor”.
#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 1,034 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 & M Mechanical Systems | 5.0★ (1) | In Stamford |
| AC Electrical Services LLC | In Stamford | |
| Accurate Heating & Cooling | 3.0★ (2) | In Stamford |
| All Dry Services of Stamford | 4.9★ (55) | In Stamford |
| ALL Seasons Air Conditioning | 4.8★ (321) | 24 mi |
| Comfort Masters | 5.0★ (1) | In Stamford |
| County Comfort Services | 4.7★ (420) | 23 mi |
| Emilio Caruso Plumbing & Heating Inc | 5.0★ (1) | In Stamford |
| Green Roof Concepts LLC | 4.7★ (20) | In Stamford |
| H&H Air Duct Cleaning And Dryer Vent Cleaning Services Inc. | 4.9★ (14) | In Stamford |
| Harry P Carpenter & Sons | 5.0★ (1) | In Stamford |
| Joseph S Sabino Plumbing & Heating | 5.0★ (1) | In Stamford |
| K2 Heating & Air Conditioning | 4.8★ (328) | 23 mi |
| Levco Oil & Propane | 4.7★ (590) | 24 mi |
| Petro Home Services | 4.3★ (687) | 20 mi |
| Safe and Sound Electric | 4.9★ (306) | In Stamford |
| SERVPRO of Stamford | 4.8★ (79) | In Stamford |
| Tyler Heating, Air Conditioning, Refrigeration LLC | 4.7★ (570) | 22 mi |
| Warco Plumbing & Heating Inc | 5.0★ (2) | In Stamford |
| WBF Air Conditioning & Heating | 3.0★ (2) | In Stamford |
National price ranges in USD, not adjusted for Stamford. 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 Connecticut, Connecticut Department of Consumer Protection licenses Heating, piping, cooling and sheet metal licenses.
No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.
Guide checked October 2026. How we verify licenses
In Connecticut, 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 1,034 Stamford 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 Stamford 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 |