280 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Madison: Air, Inc., CR Score 91/100; 4.8★ from 692 Google reviews; open 24/7.
Best for emergencies (open 24/7): Absolute Air Services, LLC, posts 24/7 hours; ranked #2 of 280.
Most-reviewed: Rick's Plumbing Service, Inc., 1,157 Google reviews at 5.0★, the most of 280 ranked; ranked #16.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
280 Madison HVAC contractors are ranked here by CR Score, from 8 published factors. 61 are open 24/7, 128 open Saturdays and 86 open Sundays, based on posted hours. The median Google rating is 4.8★ across 280 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Air, Inc. | 91 | 4.8★ (692) | Branford, 12 mi away | 24/7 | Overall |
| 2 | Absolute Air Services, LLC | 91 | 4.9★ (1,027) | Portland, 20 mi away | 24/7 | Emergencies |
| 3 | Aiello Home Services- Plumbing, Heating, AC, Electrical & Drain Cleaning | 89 | 4.8★ (601) | Wallingford, 18 mi away | 24/7 | — |
| 4 | Aire Serv of New Haven | 88 | 4.9★ (112) | Wallingford Center, 12 mi away | 24/7 | — |
| 5 | Diamond Mechanical | 87 | 5.0★ (77) | Torrington, 17 mi away | 24/7 | — |
| 6 | AirTech Heating & Cooling LLC | 86 | 5.0★ (28) | Branford, 12 mi away | 24/7 | — |
| 7 | TruComfort Heating and Cooling | 86 | 4.9★ (79) | Cheshire Village, 20 mi away | 24/7 | — |
| 8 | Hyper Fusion Heating & Cooling, LLC | 86 | 5.0★ (80) | Ansonia, 17 mi away | 24/7 | — |
| 9 | Direct Home Services | 85 | 4.7★ (268) | Guilford, 14 mi away | 24/7 | — |
| 10 | Connecticut HVAC Services llc | 84 | 4.6★ (107) | Guilford, 20 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 4.8★ from 692 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Portland, 20 mi away
Ranked #2 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 Wallingford, 18 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 601 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Wallingford Center, 12 mi away
Ranked #4 because of its Google rating and availability: 4.9★ from 112 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Torrington, 17 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 77 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Branford, 12 mi away
Ranked #6 because of its Google rating and availability: 5.0★ from 28 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire Village, 20 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 79 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ansonia, 17 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 80 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Guilford, 14 mi away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 268 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Guilford, 20 mi away
Ranked #10 because of its Google rating and availability: 4.6★ from 107 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Old Saybrook, 11 mi away
Ranked #11 because of its Google rating and availability: 4.4★ from 33 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bethel, 17 mi away
Ranked #12 because of its Google rating and availability: 4.6★ from 57 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Milford, 22 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 39 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire, 24 mi away
Ranked #14 because of its Google rating and availability: 4.7★ from 112 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Calverton, 23 mi away
Ranked #15 because of its Google rating and availability: 5.0★ from 44 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Milford, 25 mi away
Ranked #16 because of its Google rating and review volume: 5.0★ from 1,157 Google reviews, the most Google reviews on this list (1,157).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Calverton, 25 mi away
Ranked #17 because of its Google rating and availability: 5.0★ from 50 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cromwell, 17 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 85 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Madison
Ranked #19 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “Heating contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Middletown, 20 mi away
Ranked #20 because of its Google rating and availability: 4.8★ from 63 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Branford, 11 mi away
Ranked #21 because of its Google rating and availability: 4.7★ from 18 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cheshire Village, 17 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 71 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Guilford, 8 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 467 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Farmington, 17 mi away
Ranked #24 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Milford, 22 mi away
Ranked #25 because of its Google rating and availability: 5.0★ from 16 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 280 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 |
|---|---|---|
| 3D Mechanical LLC | 5.0★ (2) | 17 mi |
| Air Duct Co LLC | 5.0★ (6) | 17 mi |
| Air Pro Air & Energy | 5.0★ (6) | 22 mi |
| All Seasons Heating & Cooling | 5.0★ (2) | 9 mi |
| Devine Design Contractors PLLC | 5.0★ (2) | 16 mi |
| Donlon Brothers Heating and Cooling | 3.8★ (26) | 25 mi |
| Fitzgerald & Wood Inc | 5.0★ (2) | 11 mi |
| Fitzpatrick Heating & Air Conditioning | 5.0★ (2) | 14 mi |
| Hank's Plumbing & Heating Services | 5.0★ (2) | 12 mi |
| J C Kleinkauf Heating & Plumbing Inc | 3.0★ (2) | 7 mi |
| John J Tratnyek Plumbing & Heating | 5.0★ (2) | 11 mi |
| Long Island HVAC Repair | 5.0★ (10) | 25 mi |
| North Air Systems LLC | 4.0★ (2) | 13 mi |
| North Haven Mechanical Contractors | 5.0★ (2) | 16 mi |
| North Shore Heating Service | 4.6★ (10) | 25 mi |
| Pyskaty Plumbing & Heating | 5.0★ (2) | 14 mi |
| Royal Plumbing & Heating Co | 5.0★ (2) | 15 mi |
| St Louis Heating & Cooling LLC | 5.0★ (2) | 16 mi |
| Twin Mechanical LLC | In Madison | |
| Viridian Heating & Cooling | 5.0★ (9) | 25 mi |
National price ranges in USD, not adjusted for Madison. 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 280 Madison 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 Madison 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 |