456 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Windsor: HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical, CR Score 93/100; 4.5★ from 4,138 Google reviews; open 24/7.
Best for emergencies (open 24/7): Call The Bee, posts 24/7 hours; ranked #2 of 456.
Most-reviewed: Aiello Home Services- Plumbing, Heating, AC, Electrical & Drain Cleaning, 4,103 Google reviews at 4.6★, the most of 456 ranked after HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
456 Windsor HVAC contractors are ranked here by CR Score, from 8 published factors. 82 are open 24/7, 182 open Saturdays and 126 open Sundays, based on posted hours. The median Google rating is 4.7★ across 456 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | HARP Home Services - Air Conditioning, Heating, Plumbing, & Electrical | 93 | 4.5★ (4,138) | Windsor | 24/7 | Overall |
| 2 | Call The Bee | 91 | 4.8★ (2,959) | Farmington, 13 mi away | 24/7 | Emergencies |
| 3 | Degree Heating and Cooling | 91 | 4.8★ (1,302) | Glastonbury, 10 mi away | 24/7 | — |
| 4 | SM Mechanical Services LLC | 90 | 4.8★ (618) | Glastonbury, 10 mi away | 24/7 | — |
| 5 | Total Mechanical Systems | 90 | 4.7★ (2,607) | Plainville, 16 mi away | 24/7 | — |
| 6 | Hurley & David - Air Conditioning, Heating, Plumbing, & Electrical | 89 | 4.7★ (3,509) | Springfield, 19 mi away | 24/7 | — |
| 7 | Aiello Home Services- Plumbing, Heating, AC, Electrical & Drain Cleaning | 89 | 4.6★ (4,103) | Windsor Locks, 4 mi away | Sat · Sun · Evenings | Most reviews |
| 8 | Absolute Air Services, LLC | 89 | 4.9★ (1,027) | Portland, 20 mi away | 24/7 | — |
| 9 | Clog Master Plumbing, HVAC and Water Damage Restoration Services | 89 | 4.7★ (412) | West Hartford, 9 mi away | 24/7 | — |
| 10 | Glasco Heating & Air Conditioning | 89 | 4.7★ (1,132) | South Windsor, 2 mi away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 in Windsor
Based in Windsor
Ranked #1 because of its Google rating and review volume: 4.5★ from 4,138 Google reviews, the most Google reviews on this list (4,138).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 13 mi away
Ranked #2 because of its Google rating and availability: 4.8★ from 2,959 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Glastonbury, 10 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 1,302 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Glastonbury, 10 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 618 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Plainville, 16 mi away
Ranked #5 because of its Google rating and availability: 4.7★ from 2,607 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Springfield, 19 mi away
Ranked #6 because of its Google rating and availability: 4.7★ from 3,509 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Windsor Locks, 4 mi away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 4,103 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 20 mi away
Ranked #8 because of its Google rating and availability: 4.9★ from 1,027 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in West Hartford, 9 mi away
Ranked #9 because of its Google rating and availability: 4.7★ from 412 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in South Windsor, 2 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 1,132 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manchester, 7 mi away
Ranked #11 because of its Google rating and availability: 4.8★ from 172 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in East Hartford, 6 mi away
Ranked #12 because of its Google rating and availability: 4.9★ from 656 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manchester, 7 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 64 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bristol, 20 mi away
Ranked #14 because of its Google rating and availability: 4.8★ from 695 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Simsbury Center, 8 mi away
Ranked #15 because of its Google rating and availability: 4.9★ from 90 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hartford, 7 mi away
Ranked #16 because of its Google rating and availability: 4.9★ from 68 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hartford, 8 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 359 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Bristol, 18 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 389 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Plainville, 18 mi away
Ranked #19 because of its Google rating and availability: 4.8★ from 262 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bristol, 6 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 29 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wethersfield, 10 mi away
Ranked #21 because of its Google rating and availability: 4.7★ from 100 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Storrs, 23 mi away
Ranked #22 because of its Google rating and availability: 5.0★ from 186 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 15 mi away
Ranked #23 because of its Google rating and availability: 5.0★ from 55 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Hebron, 25 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 150 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ellington, 9 mi away
Ranked #25 because of its Google rating and availability: 4.4★ from 138 Google reviews, open 24/7.
Based on 6 of 8 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 456 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 - EDC Dryer Vent Cleaning & Air Duct Cleaning Services Co, CT | In Windsor | |
| Action Air, Inc. | 5.0★ (2) | 13 mi |
| Angeloni Refrigeration & Heating | 5.0★ (2) | 11 mi |
| Coleman Cooling & Heating | 3.0★ (2) | 12 mi |
| Corbett HVAC Services LLC | 4.4★ (80) | 24 mi |
| Cowan Family Plumbing & Heating | 5.0★ (2) | 13 mi |
| Davidson Plumbing & Heating | 3.0★ (2) | 15 mi |
| Deitch Energy LLC | 4.0★ (70) | 6 mi |
| Dyson's Oil Burner & Air Conditioning | 4.6★ (9) | 8 mi |
| High Tech Comfort LLC | 5.0★ (2) | 4 mi |
| JL Mechanical Services LLC | 5.0★ (2) | 10 mi |
| MR Heating & Cooling L.L.C. | 5.0★ (2) | 6 mi |
| Preferred Propane | 3.6★ (14) | 9 mi |
| PrimeAir HVAC Heating & Cooling | In Windsor | |
| Priority Mechanical LLC | 5.0★ (11) | 18 mi |
| R T Capobianco Plumbing & Heating | 3.5★ (2) | 6 mi |
| Reliable Mechanical Contractors | 3.0★ (10) | 5 mi |
| Romco Contractors- Industrial Ventilation Specialists | 5.0★ (1) | In Windsor |
| State Air Conditioning Co | 3.5★ (2) | 10 mi |
| W.L. Heating and Cooling, LLC | 3.0★ (2) | 8 mi |
National price ranges in USD, not adjusted for Windsor. 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 456 Windsor 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 Windsor 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 |