41 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Sarnia: Reliance Home Comfort, CR Score 68/100; 4.8★ from 3,256 Google reviews; open 24/7.
Best for emergencies (open 24/7): Dependable Heating Cooling & Refrigeration, posts 24/7 hours; ranked #2 of 41.
Most-reviewed: Vincent's Heating & Plumbing Inc, 997 Google reviews at 4.8★, the most of 41 ranked after Reliance Home Comfort; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
41 Sarnia HVAC contractors are ranked here by CR Score, from ten published factors. 14 are open 24/7, 18 open Saturdays and 16 open Sundays, based on posted hours. The median Google rating is 4.9★ across 41 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Reliance Home Comfort | 68 | 4.8★ (3,256) | Sarnia | 24/7 | Overall |
| 2 | Dependable Heating Cooling & Refrigeration | 66 | 4.9★ (707) | Sarnia | 24/7 | Emergencies |
| 3 | It's Your Heating And Cooling Guy | 65 | 4.9★ (739) | Port Huron, 4 km away | 24/7 | — |
| 4 | Vincent's Heating & Plumbing Inc | 65 | 4.8★ (997) | Port Huron, 5 km away | 24/7 | Most reviews |
| 5 | Handy Bros. HVAC Sarnia (AC and Furnace Repair) | 64 | 4.9★ (312) | Sarnia | 24/7 | — |
| 6 | Bright's Grove Heating & Cooling (AC and Furnace Repair) | 64 | 5.0★ (166) | Sarnia | 24/7 | — |
| 7 | Stewart Adams & Son Heating & Air Conditioning LLC | 64 | 5.0★ (200) | Port Huron, 3 km away | 24/7 | — |
| 8 | Superior Heating & Cooling Inc. | 63 | 4.9★ (191) | Port Huron, 2 km away | 24/7 | — |
| 9 | Superior HVAC Service, Heating & Air Conditioning | 60 | 4.9★ (62) | Sarnia | Sat · Sun · Evenings | — |
| 10 | Superior Plumbing & Heating of Sarnia | 60 | 5.0★ (20) | Sarnia | 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 review volume: 4.8★ from 3,256 Google reviews, the most in Sarnia.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #2 because of its Google rating and trade focus: 4.9★ from 707 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 4 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 739 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 5 km away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 997 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #5 because of its Google rating and trade focus: 4.9★ from 312 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #6 because of its Google rating and trade focus: 5.0★ from 166 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 3 km away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 200 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 2 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 191 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #9 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #10 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #11 because of its Google rating and trade focus: 4.9★ from 134 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #12 because of its Google rating and trade focus: 4.4★ from 160 Google reviews, listed on Google as “Furnace repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #13 because of its Google rating and trade focus: 5.0★ from 76 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Petrolia, 23 km away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 37 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 13 km away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 71 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Richmond, 34 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 29 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #17 because of its Google rating and trade focus: 4.5★ from 48 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Marysville, 15 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Sarnia
Ranked #19 because of its Google rating and trade focus: 4.3★ from 55 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Petrolia, 23 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #21 because of its Google rating and trade focus: 4.6★ from 20 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #22 because of its Google rating and trade focus: 4.4★ from 28 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Sarnia
Ranked #23 because of its Google rating and trade focus: 4.2★ from 47 Google reviews, listed on Google as “Heating contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 6 km away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 21 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Port Huron, 13 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
#1 to #25 are shown in full above. Here are #26 to #41, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Ace Appliance Heating & Cooling Inc | 52 | 4.2★ (5) | In Sarnia |
| 27 | Tony's Heating and Cooling | 52 | 4.8★ (188) | 39 km |
| 28 | Bear Metal | 52 | 5.0★ (6) | 21 km |
| 29 | Environmental Air Systems Inc | 52 | 5.0★ (3) | 35 km |
| 30 | S B Heating & Air Conditioning Inc | 52 | 3.3★ (33) | In Sarnia |
| 31 | Richmond Heating and Cooling | 52 | 3.5★ (4) | 35 km |
| 32 | Northern Air Heating & Cooling | 52 | 4.6★ (37) | 35 km |
| 33 | MHT Air Conditioning & Heating, LLC | 51 | 4.3★ (3) | 5 km |
| 34 | Mark's Plumbing & Heating | 50 | 5.0★ (3) | In Sarnia |
| 35 | Kelley & Sons Heating & Cooling | 50 | 4.9★ (34) | 40 km |
| 36 | Royal heating and cooling | 49 | 5.0★ (4) | 34 km |
| 37 | St. Clair Plumbing & Heating | 49 | 3.5★ (4) | 20 km |
| 38 | Blue Water Plumbing & Heating | 48 | 5.0★ (3) | In Sarnia |
| 39 | Mythic Heating & Cooling | 48 | 5.0★ (15) | 40 km |
| 40 | Therma Construction - Heating & Cooling - HVAC Services in Arkona | 47 | 5.0★ (6) | 40 km |
| 41 | Watson Bros. Company | 46 | 4.4★ (7) | 5 km |
14 more HVAC contractors within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Advanced Heating & Air Conditioning | 14 km | |
| Blue-Ray Mechanical Inc | 29 km | |
| Complete Comfort HVAC, LLC | 5.0★ (1) | 3 km |
| Custom Electric & Heating Inc. | In Sarnia | |
| Denmark Heating & A/C Llc | 3 km | |
| EH Price Ltd | In Sarnia | |
| Enviromental Air& Control Systems, Inc | 4.0★ (1) | 32 km |
| FAI REFRIGERATION LLC | 5.0★ (2) | 11 km |
| Ingell Refrigeration Air Conditioning | 5.0★ (2) | 2 km |
| Pro Desk at RONA+ | 5.0★ (1) | In Sarnia |
| SB Heating & Air Conditioning | 4.0★ (1) | 6 km |
| Watson Brothers Company | 2 km | |
| Wolverine Contracting and Engineering | 5.0★ (12) | In Sarnia |
| Wright Service Plumbing Heating | 17 km |
US national ranges converted to CAD, not adjusted for Sarnia. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | CA$5,460 | CA$8,400 | CA$11,350 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Furnace replacement | CA$3,970 | CA$6,770 | CA$9,690 | Per system, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
In Ontario, 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 41 Sarnia 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 Sarnia 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 |