38 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Durham: Bob's Air Repair, CR Score 95/100; 4.9★ from 830 Google reviews; open 24/7.
Best for emergencies (open 24/7): Royal Aire Solar, Heating, Air & Water, posts 24/7 hours; ranked #2 of 38.
Most-reviewed: Royal Aire Solar, Heating, Air & Water, 718 Google reviews at 4.7★, the most of 38 ranked after Bob's Air Repair; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Durham HVAC contractors are ranked here by CR Score, from 8 published factors. 6 are open 24/7, 17 open Saturdays and 13 open Sundays, based on posted hours. The median Google rating is 4.8★ across 38 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Bob's Air Repair | 95 | 4.9★ (830) | Chico, 5 mi away | 24/7 | Overall |
| 2 | Royal Aire Solar, Heating, Air & Water | 93 | 4.7★ (718) | Chico, 5 mi away | 24/7 | Emergencies, Most reviews |
| 3 | Climate & Energy Solutions | 90 | 4.9★ (562) | Chico, 10 mi away | Sat · Sun · Evenings | — |
| 4 | Connect Energy Mechanical | 87 | 5.0★ (65) | Chico, 5 mi away | Sat · Sun · Evenings | — |
| 5 | Embers Heating and Air | 86 | 5.0★ (43) | Oroville, 18 mi away | 24/7 | — |
| 6 | Barnhart Heating & Air | 84 | 4.8★ (17) | Chico, 8 mi away | 24/7 | — |
| 7 | Willows Refrigeration | 82 | 5.0★ (10) | Willows, 13 mi away | 24/7 | — |
| 8 | Air-Art Heating & Air Conditioning | 82 | 4.9★ (301) | Chico, 6 mi away | — | — |
| 9 | Heating & Air Conditioning | 82 | 5.0★ (7) | Durham | Sat · Sun · Evenings | — |
| 10 | Branden's Plumbing & Rooter Services | 81 | 4.8★ (64) | Chico, 10 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and review volume: 4.9★ from 830 Google reviews, the most Google reviews on this list (830).
Based in Chico, 5 mi away
Ranked #2 because of its Google rating and availability: 4.7★ from 718 Google reviews, open 24/7.
Based in Chico, 10 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 562 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 5 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “HVAC contractor”.
Based in Oroville, 18 mi away
Ranked #5 because of its Google rating and availability: 5.0★ from 43 Google reviews, open 24/7.
Based in Chico, 8 mi away
Ranked #6 because of its Google rating and availability: 4.8★ from 17 Google reviews, open 24/7.
Based in Willows, 13 mi away
Ranked #7 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based in Chico, 6 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 301 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Durham
Ranked #9 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 10 mi away
Ranked #10 because of its Google rating and availability: 4.8★ from 64 Google reviews, open 24/7.
Based in Paradise, 16 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “HVAC contractor”.
Based in Durham
Ranked #12 because of its Google rating and trade focus: 4.4★ from 46 Google reviews, listed on Google as “Heating contractor”.
Based in Chico, 4 mi away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 7 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 4 mi away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 84 Google reviews, listed on Google as “HVAC contractor”.
Based in Willows, 7 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “HVAC contractor”.
Based in Oroville, 19 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 111 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 10 mi away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “HVAC contractor”.
Based in Oroville, 16 mi away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 97 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 9 mi away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “HVAC contractor”.
Based in Magalia, 18 mi away
Ranked #21 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Oroville, 21 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 129 Google reviews, listed on Google as “HVAC contractor”.
Based in Chico, 4 mi away
Ranked #23 because of its Google rating and trade focus: 4.1★ from 45 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Chico, 8 mi away
Ranked #24 because of its Google rating and availability: 4.2★ from 26 Google reviews, open 7 days a week.
Based in Chico, 12 mi away
Ranked #25 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “HVAC contractor”.
#1 to #25 are shown in full above. Here are #26 to #30, in CR Score order; each links to its profile. We publish the top 30 of 38 ranked HVAC contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Gilmore Construction & Development Inc. | 73 | 5.0★ (5) | 8 mi |
| 28 | Efficient Concepts, Inc. | 73 | 4.8★ (23) | 12 mi |
| 30 | The Yeti HVAC Company | 72 | 4.8★ (26) | 21 mi |
National price ranges in USD, not adjusted for Durham. 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 38 Durham 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 Durham 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 |