396 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in San Diego: Anderson Plumbing, Heating & Air, CR Score 67/100; 4.8★ from 6,056 Google reviews; open 24/7.
Best for emergencies (open 24/7): Bill Howe Plumbing, Heating & Air, Restoration & Flood Services, posts 24/7 hours; ranked #2 of 396.
Most-reviewed: ASI, The White Glove Guys, 7,073 Google reviews at 4.8★, the most of 396 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
396 San Diego HVAC contractors are ranked here by CR Score, from ten published factors. 125 are open 24/7, 299 open Saturdays and 221 open Sundays, based on posted hours. The median Google rating is 5.0★ across 396 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Anderson Plumbing, Heating & Air | 67 | 4.8★ (6,056) | San Diego | 24/7 | Overall |
| 2 | Bill Howe Plumbing, Heating & Air, Restoration & Flood Services | 67 | 4.8★ (4,875) | San Diego | 24/7 | Emergencies |
| 3 | United Plumbing Heating Air & Electric | 66 | 4.9★ (1,612) | San Diego | 24/7 | — |
| 4 | Same Day Heating, Cooling, Plumbing | 66 | 4.8★ (1,658) | San Diego | 24/7 | — |
| 5 | One Hour Heating & Air Conditioning | 65 | 4.9★ (815) | San Diego | 24/7 | — |
| 6 | Friar's Plumbing Heating and AC Repair | 65 | 4.9★ (626) | San Diego | 24/7 | — |
| 7 | ASI, The White Glove Guys | 64 | 4.8★ (7,073) | San Diego | Sat · Evenings | Most reviews |
| 8 | Guthrie & Sons Heating, Air and Solar | 64 | 4.9★ (1,494) | San Diego | Sat · Sun · Evenings | — |
| 9 | Action Air Conditioning & Heating | 64 | 4.9★ (384) | San Diego | 24/7 | — |
| 10 | Anderson Plumbing, Heating & Air | 64 | 4.8★ (4,443) | El Cajon, 13 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.8★ from 6,056 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #2 because of its Google rating and trade focus: 4.8★ from 4,875 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,612 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #4 because of its Google rating and trade focus: 4.8★ from 1,658 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #5 because of its Google rating and trade focus: 4.9★ from 815 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #6 because of its Google rating and trade focus: 4.9★ from 626 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #7 because of its Google rating and review volume: 4.8★ from 7,073 Google reviews, the most in San Diego.
Based in San Diego
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,494 Google reviews, listed on Google as “Air conditioning contractor”.
Based in San Diego
Ranked #9 because of its Google rating and trade focus: 4.9★ from 384 Google reviews, listed on Google as “HVAC contractor”.
Based in El Cajon, 13 mi away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 4,443 Google reviews, listed on Google as “HVAC contractor”.
Based in El Cajon, 14 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 4,710 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #12 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #13 because of its Google rating and trade focus: 5.0★ from 471 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #14 because of its Google rating and trade focus: 4.8★ from 996 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #15 because of its Google rating and trade focus: 4.9★ from 220 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #16 because of its Google rating and trade focus: 4.8★ from 240 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #17 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #18 because of its Google rating and trade focus: 4.9★ from 119 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #19 because of its Google rating and review volume: 4.9★ from 1,546 Google reviews.
Based in San Diego
Ranked #20 because of its Google rating and trade focus: 5.0★ from 197 Google reviews, listed on Google as “Air conditioning contractor”.
Based in San Diego
Ranked #21 because of its Google rating and trade focus: 4.9★ from 278 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #22 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “HVAC contractor”.
Based in El Cajon, 13 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 1,836 Google reviews, listed on Google as “HVAC contractor”.
Based in San Diego
Ranked #24 because of its Google rating and trade focus: 4.9★ from 58 Google reviews, listed on Google as “HVAC contractor”.
Based in Lakeside, 17 mi away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 1,014 Google reviews, listed on Google as “HVAC contractor”.
#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 396 ranked HVAC contractors here; the rest are on their profiles.
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.
National price ranges in USD, not adjusted for San Diego. 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 396 San Diego 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 San Diego 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 |