1,155 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Tustin: Dial One Sonshine Heating, Air & Plumbing, CR Score 66/100; 4.9★ from 2,852 Google reviews; open 24/7.
Best for emergencies (open 24/7): Service Hero Plumbing, HVAC, and Electrical, posts 24/7 hours; ranked #2 of 1,155.
Most-reviewed: Service Champions Plumbing, Heating & AC, 6,978 Google reviews at 4.9★, the most of 1,155 ranked; ranked #25.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
1,155 Tustin HVAC contractors are ranked here by CR Score, from ten published factors. 391 are open 24/7, 903 open Saturdays and 619 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,155 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Dial One Sonshine Heating, Air & Plumbing | 66 | 4.9★ (2,852) | Santa Ana, 5 mi away | 24/7 | Overall |
| 2 | Service Hero Plumbing, HVAC, and Electrical | 65 | 4.8★ (1,840) | Orange, 4 mi away | 24/7 | Emergencies |
| 3 | Home Comfort USA | 64 | 4.8★ (2,813) | Anaheim, 8 mi away | 24/7 | — |
| 4 | Absolute Airflow Air Conditioning, Heating and Plumbing | 64 | 4.8★ (4,319) | Westminster, 11 mi away | 24/7 | — |
| 5 | NexGen HVAC & Plumbing | 64 | 4.8★ (3,589) | Laguna Hills, 10 mi away | 24/7 | — |
| 6 | JustinTime Plumbing Heating and Air | 64 | 4.9★ (1,328) | Costa Mesa, 8 mi away | 24/7 | — |
| 7 | South County Air Services | 64 | 5.0★ (193) | Tustin | 24/7 | — |
| 8 | Veteran Air | 64 | 4.9★ (1,091) | Anaheim, 8 mi away | 24/7 | — |
| 9 | Air Concepts Air Conditioning and Heating | 63 | 4.9★ (995) | Anaheim, 8 mi away | 24/7 | — |
| 10 | NexGen HVAC & Plumbing | 63 | 4.7★ (2,250) | Anaheim, 8 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: 4.9★ from 2,852 Google reviews, listed on Google as “HVAC contractor”.
Based in Orange, 4 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 1,840 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 8 mi away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 2,813 Google reviews, listed on Google as “HVAC contractor”.
Based in Westminster, 11 mi away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 4,319 Google reviews, listed on Google as “HVAC contractor”.
Based in Laguna Hills, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 3,589 Google reviews, listed on Google as “HVAC contractor”.
Based in Costa Mesa, 8 mi away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 1,328 Google reviews, listed on Google as “HVAC contractor”.
Based in Tustin
Ranked #7 because of its Google rating and trade focus: 5.0★ from 193 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 8 mi away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,091 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 8 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 995 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 8 mi away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 2,250 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 8 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 1,899 Google reviews, listed on Google as “HVAC contractor”.
Based in Fountain Valley, 6 mi away
Ranked #12 because of its Google rating and trade focus: 4.9★ from 596 Google reviews, listed on Google as “HVAC contractor”.
Based in Yorba Linda, 9 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 764 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Costa Mesa, 5 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 284 Google reviews, listed on Google as “HVAC contractor”.
Based in Rancho Santa Margarita, 15 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 1,350 Google reviews, listed on Google as “HVAC contractor”.
Based in Orange, 4 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 1,511 Google reviews, listed on Google as “HVAC contractor”.
Based in Irvine, 4 mi away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 967 Google reviews, listed on Google as “Heating contractor”.
Based in Laguna Hills, 10 mi away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 846 Google reviews, listed on Google as “HVAC contractor”.
Based in Fountain Valley, 7 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 301 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Forest, 10 mi away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 680 Google reviews, listed on Google as “HVAC contractor”.
Based in Lake Forest, 10 mi away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 1,069 Google reviews, listed on Google as “HVAC contractor”.
Based in Anaheim, 6 mi away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 1,005 Google reviews, listed on Google as “HVAC contractor”.
Based in Tustin
Ranked #23 because of its Google rating and trade focus: 4.9★ from 363 Google reviews, listed on Google as “HVAC contractor”.
Based in Corona, 15 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 1,325 Google reviews, listed on Google as “HVAC contractor”.
Based in Brea, 12 mi away
Ranked #25 because of its Google rating and review volume: 4.9★ from 6,978 Google reviews, the most in Tustin.
#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 1,155 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.
| Business | Google rating | Distance |
|---|---|---|
| 24Seven Heating and Cooling | 5.0★ (2) | 1 mi |
| ADVANTAGE HVAC | 3.5★ (2) | 6 mi |
| All Star Electrical Heating & Cooling | 5.0★ (2) | 8 mi |
| Alpine Air Products | 5.0★ (1) | In Tustin |
| American Service Alliance | 5.0★ (75) | 7 mi |
| Amir's Design | 5.0★ (2) | 1 mi |
| Authority Plumbing, Heating and Air | 5.0★ (173) | 12 mi |
| Circle Airflow Heating And Air Conditioning. | 5.0★ (2) | 4 mi |
| Cooling & Heating Repair | 4.8★ (402) | 13 mi |
| Grizzly Strong Construction | 5.0★ (1) | In Tustin |
| Heating & Air Conditioning | 5.0★ (2) | 4 mi |
| HVAC Services Anaheim | 5.0★ (2) | 6 mi |
| Kalka Plumbing Heating & Air | 4.7★ (212) | 9 mi |
| Orange Coast Plumbing | 5.0★ (490) | 18 mi |
| Pacific Comfort HVAC | 5.0★ (2) | 2 mi |
| Penguin Heating and Air | 5.0★ (144) | 8 mi |
| Power Pro Plumbing Heating & Air | 4.8★ (231) | 9 mi |
| Refrigeration Equipment Specialist Co. (RESCO) | In Tustin | |
| Sears Heating and Air Conditioning | 5.0★ (2) | 3 mi |
| Service 1 Air | In Tustin |
National price ranges in USD, not adjusted for Tustin. 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 1,155 Tustin 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 23, 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 Tustin 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 |