43 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank
10 of the 43 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.
#1 for emergency heating and cooling in Grass Valley: Hayes & Sons HVAC, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Hayes & Sons HVAC | 64 | 4.8★ (79) | Grass Valley | 24/7 |
| 2 | A&A Air Conditioning Heating & Sheet Metal | 62 | 4.2★ (46) | Grass Valley | 24/7 |
| 3 | Duncan's Heating and Air | 61 | 4.9★ (33) | Palermo, 5 mi away | 24/7 |
| 4 | DAS Mechanical LLC | 60 | 5.0★ (151) | Auburn, 20 mi away | 24/7 |
| 5 | Mize Guys Heating & Cooling | 60 | 4.8★ (108) | Auburn, 18 mi away | 24/7 |
| 6 | Big Mountain Heating & Air Conditioning | 58 | 4.9★ (58) | Auburn, 22 mi away | 24/7 |
| 7 | Country Air Conditioning Inc | 57 | 4.9★ (15) | Auburn, 16 mi away | 24/7 |
| 8 | Edwards Heating & Cooling | 56 | 4.8★ (4) | Auburn, 10 mi away | 24/7 |
| 9 | Auburn Crane | 55 | 4.5★ (10) | Auburn, 21 mi away | 24/7 |
| 10 | Noah Walls Panels | 54 | 4.5★ (17) | Plumas Lake, 25 mi away | 24/7 |
24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.
Open 24/7 · 4.8 from 79 Google reviews
#2A&A Air Conditioning Heating & Sheet Metal
Open 24/7 · 4.2 from 46 Google reviews
Open 24/7 · 4.9 from 33 Google reviews
Open 24/7 · 5.0 from 151 Google reviews
Open 24/7 · 4.8 from 108 Google reviews
#6Big Mountain Heating & Air Conditioning
Open 24/7 · 4.9 from 58 Google reviews
#7Country Air Conditioning Inc
Open 24/7 · 4.9 from 15 Google reviews
Open 24/7 · 4.8 from 4 Google reviews
24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 79 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grass Valley
Ranked #2 because of its Google rating and trade focus: 4.2★ from 46 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Palermo, 5 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 33 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 20 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 151 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 18 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 108 Google reviews, listed on Google as “Furnace repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 22 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 16 mi away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 15 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 10 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 4 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 21 mi away
Ranked #9 because of its Google rating and trade focus: 4.5★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plumas Lake, 25 mi away
Ranked #10 because of its Google rating and trade focus: 4.5★ from 17 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grass Valley
Ranked #11 because of its Google rating and trade focus: 4.3★ from 3 Google reviews, listed on Google as “Heating contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grass Valley
Ranked #12 because of its Google rating and trade focus: 4.9★ from 207 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Linda, 24 mi away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 47 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grass Valley
Ranked #14 because of its Google rating and trade focus: 4.9★ from 145 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Plumas Lake, 19 mi away
Ranked #15 because of its Google rating and trade focus: 3.4★ from 51 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grass Valley
Ranked #16 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Air conditioning contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grass Valley
Ranked #17 because of its Google rating and trade focus: 4.5★ from 72 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 23 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 833 Google reviews, listed on Google as “Furnace repair service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 20 mi away
Ranked #19 because of its Google rating and trade focus: 4.5★ from 6 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grass Valley
Ranked #20 because of its Google rating and review volume: 4.8★ from 973 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 23 mi away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 551 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grass Valley
Ranked #22 because of its Google rating and trade focus: 5.0★ from 24 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 21 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 346 Google reviews, listed on Google as “HVAC contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 22 mi away
Ranked #24 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Grass Valley
Ranked #25 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Air conditioning 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 #43, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Brewer Refrigeration Heating & AC | 42 | 4.2★ (32) | In Grass Valley |
| 27 | Comfort Plumbing Systems, Inc. | 42 | 5.0★ (99) | In Grass Valley |
| 28 | Cost U Less Heating and Air | 42 | 4.8★ (12) | In Grass Valley |
| 29 | Forster Heating | 42 | 4.9★ (243) | 22 mi |
| 30 | Quality Heating and Cooling | 40 | 4.3★ (7) | In Grass Valley |
| 31 | Mountain Air Refrigeration | 40 | 4.5★ (6) | In Grass Valley |
| 32 | Edwards Heating & Cooling, Inc. | 38 | 3.9★ (11) | 10 mi |
| 33 | Done Right Heating & Air | 38 | 4.9★ (35) | 22 mi |
| 34 | Spoor's Heating & Air Conditioning | 38 | 4.4★ (19) | 16 mi |
| 35 | C&B Energy | 37 | 5.0★ (7) | 13 mi |
| 36 | California Environmental Systems | 37 | 4.4★ (14) | 19 mi |
| 37 | Viking Mechanical | 36 | 4.9★ (7) | 18 mi |
| 38 | Comfort 1 heating and air | 36 | 5.0★ (9) | 21 mi |
| 39 | JDLR-Plumbing & HVAC services | 35 | 4.6★ (10) | 10 mi |
| 40 | Konrad Heating & Air | 35 | 5.0★ (4) | 21 mi |
| 41 | Precision Air Temp | 34 | 5.0★ (6) | 25 mi |
| 42 | Joe Mumford Plumbing & Heating Co. | 33 | 5.0★ (7) | 15 mi |
| 43 | Sears Heating and Air Conditioning | 30 | 5.0★ (3) | 22 mi |
Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.
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 |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |