383 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Bonita: Anderson Plumbing, Heating & Air, CR Score 92/100; 4.8★ from 4,443 Google reviews; open 24/7.
Best for emergencies (open 24/7): Mauzy Cooling, Heating, Plumbing, and Electrical, posts 24/7 hours; ranked #2 of 383.
Most-reviewed: ASI, The White Glove Guys, 7,073 Google reviews at 4.8★, the most of 383 ranked; ranked #48.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
383 Bonita HVAC contractors are ranked here by CR Score, from 8 published factors. 121 are open 24/7, 285 open Saturdays and 212 open Sundays, based on posted hours. The median Google rating is 5.0★ across 383 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Anderson Plumbing, Heating & Air | 92 | 4.8★ (4,443) | El Cajon, 12 mi away | 24/7 | Overall |
| 2 | Mauzy Cooling, Heating, Plumbing, and Electrical | 92 | 4.8★ (4,710) | El Cajon, 12 mi away | 24/7 | Emergencies |
| 3 | Bill Howe Plumbing, Heating & Air, Restoration & Flood Services | 92 | 4.8★ (4,875) | San Diego, 12 mi away | 24/7 | — |
| 4 | Anderson Plumbing, Heating & Air | 92 | 4.8★ (6,056) | San Diego, 14 mi away | 24/7 | — |
| 5 | Plumber Chula Vista by Castillo Works | 91 | 4.9★ (170) | Bonita | 24/7 | — |
| 6 | Air Pro Heating & Air | 90 | 4.9★ (268) | Chula Vista, 4 mi away | 24/7 | — |
| 7 | Same Day Heating, Cooling, Plumbing | 90 | 4.8★ (1,658) | San Diego, 13 mi away | 24/7 | — |
| 8 | Precision Temperature | 90 | 4.9★ (1,014) | Lakeside, 15 mi away | 24/7 | — |
| 9 | United Plumbing Heating Air & Electric | 89 | 4.9★ (1,612) | San Diego, 18 mi away | 24/7 | — |
| 10 | Jackson & Foster Heating and Air Conditioning | 89 | 4.9★ (206) | La Mesa, 7 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and availability: 4.8★ from 4,443 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 12 mi away
Ranked #2 because of its Google rating and availability: 4.8★ from 4,710 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 12 mi away
Ranked #3 because of its Google rating and availability: 4.8★ from 4,875 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 14 mi away
Ranked #4 because of its Google rating and availability: 4.8★ from 6,056 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bonita
Ranked #5 because of its Google rating and availability: 4.9★ from 170 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chula Vista, 4 mi away
Ranked #6 because of its Google rating and availability: 4.9★ from 268 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 13 mi away
Ranked #7 because of its Google rating and availability: 4.8★ from 1,658 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lakeside, 15 mi away
Ranked #8 because of its Google rating and availability: 4.9★ from 1,014 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 18 mi away
Ranked #9 because of its Google rating and availability: 4.9★ from 1,612 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Mesa, 7 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 206 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 14 mi away
Ranked #11 because of its Google rating and availability: 4.9★ from 626 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 11 mi away
Ranked #12 because of its Google rating and availability: 5.0★ from 200 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 10 mi away
Ranked #13 because of its Google rating and availability: 5.0★ from 160 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 17 mi away
Ranked #14 because of its Google rating and availability: 4.9★ from 815 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 11 mi away
Ranked #15 because of its Google rating and availability: 4.9★ from 264 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 13 mi away
Ranked #16 because of its Google rating and availability: 5.0★ from 203 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 11 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 1,836 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Lakeside, 15 mi away
Ranked #18 because of its Google rating and availability: 4.9★ from 424 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in La Mesa, 9 mi away
Ranked #19 because of its Google rating and availability: 4.9★ from 143 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in San Diego, 10 mi away
Ranked #20 because of its Google rating and availability: 5.0★ from 110 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Spring Valley, 6 mi away
Ranked #21 because of its Google rating and availability: 4.9★ from 85 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chula Vista, 3 mi away
Ranked #22 because of its Google rating and availability: 5.0★ from 35 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in El Cajon, 11 mi away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 801 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Chula Vista, 4 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 182 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in El Cajon, 10 mi away
Ranked #25 because of its Google rating and availability: 5.0★ from 86 Google reviews, open 24/7.
Based on 6 of 8 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 383 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 Bonita. 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 383 Bonita 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 Bonita 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 |