43 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Grass Valley: Hayes & Sons HVAC, CR Score 63/100; 4.8★ from 79 Google reviews; open 24/7.
Best for emergencies (open 24/7): Duncan's Heating and Air, posts 24/7 hours; ranked #3 of 43.
Most-reviewed: ABT Plumbing, Electric, Heat & Air, 973 Google reviews at 4.8★, the most of 43 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
43 Grass Valley HVAC contractors are ranked here by CR Score, from ten published factors. 10 are open 24/7, 24 open Saturdays and 16 open Sundays, based on posted hours. The median Google rating is 4.9★ across 43 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Hayes & Sons HVAC | 63 | 4.8★ (79) | Grass Valley | 24/7 | Overall |
| 2 | Americas Chimney Sweep | 61 | 4.9★ (54) | Grass Valley | Sat · Sun · Evenings | — |
| 3 | Duncan's Heating and Air | 61 | 4.9★ (33) | Palermo, 5 mi away | 24/7 | Emergencies |
| 4 | A&A Air Conditioning Heating & Sheet Metal | 60 | 4.2★ (46) | Grass Valley | 24/7 | — |
| 5 | DAS Mechanical LLC | 60 | 5.0★ (151) | Auburn, 20 mi away | 24/7 | — |
| 6 | BAEHR Heating & Air | 60 | 4.9★ (207) | Grass Valley | — | — |
| 7 | Maki Heating & Air Conditioning | 60 | 4.9★ (551) | Auburn, 23 mi away | Sat · Sun · Evenings | — |
| 8 | Omid Heating & Air Conditioning | 60 | 5.0★ (24) | Grass Valley | Sat · Sun | — |
| 9 | ABT Plumbing, Electric, Heat & Air | 60 | 4.8★ (973) | Grass Valley | Sat · Sun | Most reviews |
| 10 | All Phase Heating & Air Conditioning | 60 | 4.9★ (145) | Grass Valley | — | — |
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: 4.8★ 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: 4.9★ 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 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 Grass Valley
Ranked #4 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 Auburn, 20 mi away
Ranked #5 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 Grass Valley
Ranked #6 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 Auburn, 23 mi away
Ranked #7 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 #8 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 Grass Valley
Ranked #9 because of its Google rating and review volume: 4.8★ from 973 Google reviews, the most in Grass Valley.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Grass Valley
Ranked #10 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 Auburn, 21 mi away
Ranked #11 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, 18 mi away
Ranked #12 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 Grass Valley
Ranked #13 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.
Based in Auburn, 22 mi away
Ranked #14 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, 23 mi away
Ranked #15 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 Grass Valley
Ranked #16 because of its Google rating and trade focus: 4.5★ from 6 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 Grass Valley
Ranked #18 because of its Google rating and trade focus: 4.8★ from 12 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 #19 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “Plumber”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Auburn, 22 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 243 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 #21 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 Grass Valley
Ranked #22 because of its Google rating and trade focus: 4.2★ from 32 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 #23 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 Auburn, 21 mi away
Ranked #24 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 Auburn, 10 mi away
Ranked #25 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.
#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 | Noah Walls Panels | 54 | 4.5★ (17) | 25 mi |
| 27 | Quality Heating and Cooling | 54 | 4.3★ (7) | In Grass Valley |
| 28 | Callahan Contracting | 53 | 4.8★ (47) | 24 mi |
| 29 | California Environmental Systems | 52 | 4.4★ (14) | 19 mi |
| 30 | JDLR-Plumbing & HVAC services | 52 | 4.6★ (10) | 10 mi |
| 31 | Viking Mechanical | 51 | 4.9★ (7) | 18 mi |
| 32 | Done Right Heating & Air | 51 | 4.9★ (35) | 22 mi |
| 33 | Comfort 1 heating and air | 51 | 5.0★ (9) | 21 mi |
| 34 | Edwards Heating & Cooling, Inc. | 51 | 3.9★ (11) | 10 mi |
| 35 | Spoor's Heating & Air Conditioning | 51 | 4.4★ (19) | 16 mi |
| 36 | C&B Energy | 51 | 5.0★ (7) | 13 mi |
| 37 | Miller's Heating Air Conditioning & Sheet Metal Inc. | 51 | 4.5★ (6) | 20 mi |
| 38 | America's Contracting Services | 50 | 3.4★ (51) | 19 mi |
| 39 | Steffen's HVAC Services | 50 | 4.2★ (5) | 22 mi |
| 40 | Precision Air Temp | 49 | 5.0★ (6) | 25 mi |
| 41 | Konrad Heating & Air | 48 | 5.0★ (4) | 21 mi |
| 42 | Sears Heating and Air Conditioning | 47 | 5.0★ (3) | 22 mi |
| 43 | Joe Mumford Plumbing & Heating Co. | 47 | 5.0★ (7) | 15 mi |
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 |
|---|---|---|
| Accutemp Mechanical Inc. | 5.0★ (2) | 6 mi |
| Advanced Plumbing & Radiant Heating | 5.0★ (1) | In Grass Valley |
| Balance Point Home Performance | In Grass Valley | |
| Baron's Heating & Air Conditioning | 18 mi | |
| Cedar Ridge Heating & Air Conditioning | 5.0★ (2) | In Grass Valley |
| Dave Root-Heating & Air Conditioning | 5.0★ (1) | In Grass Valley |
| DO HVAC, Inc | In Grass Valley | |
| Elite Heating and Cooling | 5.0★ (1) | In Grass Valley |
| Elliott's Blue Collar Plumbing | 4.9★ (183) | In Grass Valley |
| Expert Air Inc | 22 mi | |
| Ledbetter Mechanical Contracting | 17 mi | |
| Mem Electrical Inc | In Grass Valley | |
| P&A Air Duct LLC | In Grass Valley | |
| Pelton's Solar Services | In Grass Valley | |
| Rinker Mechanical Services | 5.0★ (1) | 19 mi |
| Rock Creek Heating & Air | In Grass Valley | |
| Sola System Electrical Contracting | 5.0★ (29) | In Grass Valley |
| Southern Comfort Heating & Air | In Grass Valley | |
| Water Heaters Only, Inc. Corporate | 4.8★ (5) | In Grass Valley |
| Your Team Heating and Air Conditioning | 25 mi |
National price ranges in USD, not adjusted for Grass Valley. 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 California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.
Jobs of $1,000 or more in labor and materials (from January 1, 2025).
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
California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.
We scored 43 Grass Valley 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 Grass Valley 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 |