57 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Gravenhurst: Simcoe Muskoka Home Comfort, CR Score 65/100; 4.9★ from 169 Google reviews; open 24/7.
Best for emergencies (open 24/7): Simcoe Muskoka Home Comfort, posts 24/7 hours; ranked #2 of 57.
Most-reviewed: Simcoe Muskoka Home Comfort, 1,269 Google reviews at 4.9★, the most of 57 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
57 Gravenhurst HVAC contractors are ranked here by CR Score, from ten published factors. 24 are open 24/7, 33 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.9★ across 57 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Simcoe Muskoka Home Comfort | 65 | 4.9★ (169) | Gravenhurst | 24/7 | Overall |
| 2 | Simcoe Muskoka Home Comfort | 63 | 4.9★ (1,269) | Orillia, 31 km away | 24/7 | Emergencies, Most reviews |
| 3 | Air Source Home Comfort | 63 | 5.0★ (143) | Bracebridge, 14 km away | 24/7 | — |
| 4 | Advanced Home Comfort INC | 61 | 5.0★ (225) | Barrie, 29 km away | 24/7 | — |
| 5 | CGS HVAC Inc. | 61 | 4.9★ (146) | Bracebridge, 24 km away | 24/7 | — |
| 6 | Bridlewood Mechanical | 60 | 4.9★ (42) | Gravenhurst | Sat · Sun · Evenings | — |
| 7 | Big Bay Heating and Cooling | 59 | 4.9★ (46) | Barrie, 18 km away | 24/7 | — |
| 8 | Black River Heating & Cooling | 59 | 5.0★ (34) | Bracebridge, 19 km away | 24/7 | — |
| 9 | The Shock Doctors - Orillia Electricians | 59 | 4.8★ (153) | Orillia, 32 km away | 24/7 | — |
| 10 | Climate Air Heating & Air Conditioning | 58 | 4.7★ (212) | Orillia, 37 km away | 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 trade focus: 4.9★ from 169 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 31 km away
Ranked #2 because of its Google rating and review volume: 4.9★ from 1,269 Google reviews, the most in Gravenhurst.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 14 km away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 143 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 29 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 225 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 24 km away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 146 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gravenhurst
Ranked #6 because of its Google rating and trade focus: 4.9★ from 42 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 18 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 46 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 19 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 32 km away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 153 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 37 km away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 212 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 33 km away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 34 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 123 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 17 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gravenhurst
Ranked #14 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Bracebridge, 34 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 45 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 29 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gravenhurst
Ranked #17 because of its Google rating and trade focus: 4.6★ from 65 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gravenhurst
Ranked #18 because of its Google rating and trade focus: 4.4★ from 103 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Gravenhurst
Ranked #19 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 37 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 6 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 13 km away
Ranked #22 because of its Google rating and trade focus: 3.4★ from 37 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bracebridge, 29 km away
Ranked #23 because of its Google rating and trade focus: 4.8★ from 33 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 37 km away
Ranked #24 because of its Google rating and trade focus: 4.6★ from 37 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orillia, 35 km away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 21 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 #50, in CR Score order; each links to its profile. We publish the top 50 of 57 ranked HVAC contractors here; the rest are on their profiles.
20 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 |
|---|---|---|
| Arnold HVAC | 27 km | |
| Auto Stat Airduct Heating and Cooling | 1.0★ (1) | 36 km |
| Bracebridge Mechanical Solutions | 29 km | |
| Bridlewood Mechanical | 5.0★ (2) | 14 km |
| Colp Mechanical Incorporated | 13 km | |
| Complete Home Comfort | 5.0★ (1) | 16 km |
| COTTAGE ENERGY INC. | In Gravenhurst | |
| Indoor Clean Air Services | 29 km | |
| lake country heating | 5.0★ (2) | 32 km |
| Larry Amos Plumbing & Heating | 5.0★ (2) | 33 km |
| Latham Mechanical | 5.0★ (2) | 12 km |
| McNair Chuck Electric Ltd | 15 km | |
| MiMar Sheet Metals | 3.0★ (1) | 31 km |
| ModTech Inc | 4.2★ (10) | 29 km |
| Mr. Mechanical | In Gravenhurst | |
| Nielsen-Tran Mechanical | 5.0★ (4) | In Gravenhurst |
| North Forty HVAC | 5.0★ (2) | 14 km |
| P & C Plumbing & Heating Inc | 3.0★ (1) | 33 km |
| Premier Heating Systems and Sheet Metal Fabricators | In Gravenhurst | |
| Smartbuild Inc | In Gravenhurst |
US national ranges converted to CAD, not adjusted for Gravenhurst. 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 57 Gravenhurst 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 Gravenhurst 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 |