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Best HVAC Contractors in Westminster, CA (2026)

1,336 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Westminster: Absolute Airflow Air Conditioning, Heating and Plumbing, CR Score 67/100; 4.8★ from 4,319 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Dial One Sonshine Heating, Air & Plumbing, posts 24/7 hours; ranked #2 of 1,336.

  3. 22

    Most-reviewed: Service Champions Plumbing, Heating & AC, 6,978 Google reviews at 4.9★, the most of 1,336 ranked; ranked #22.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

1,336 Westminster HVAC contractors are ranked here by CR Score, from ten published factors. 447 are open 24/7, 1,046 open Saturdays and 734 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,336 rated businesses.

Top 10 HVAC contractors in Westminster at a glance

Top 10 HVAC contractors in Westminster at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Absolute Airflow Air Conditioning, Heating and Plumbing674.8★ (4,319)Westminster24/7Overall
2Dial One Sonshine Heating, Air & Plumbing664.9★ (2,852)Santa Ana, 5 mi away24/7Emergencies
3Power Pro Plumbing Heating & Air644.9★ (1,582)Cerritos, 9 mi away24/7—
4JustinTime Plumbing Heating and Air644.9★ (1,328)Costa Mesa, 9 mi away24/7—
5Service Hero Plumbing, HVAC, and Electrical634.8★ (1,840)Orange, 9 mi away24/7—
6Coast Plumbing, Heating & Air, Inc.634.9★ (596)Fountain Valley, 6 mi away24/7—
7Home Comfort USA634.8★ (2,813)Anaheim, 12 mi away24/7—
8Veteran Air634.9★ (1,091)Anaheim, 10 mi away24/7—
9Cole Services634.7★ (684)Garden Grove, 4 mi away24/7—
10Command Comfort635.0★ (301)Fountain Valley, 6 mi away24/7—

The 1,336 best HVAC contractors in Westminster, ranked

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.

  1. Based in Anaheim, 12 mi away

    63/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 2,813 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 2,813 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1120 N Tustin Ave, Anaheim, CA 92807
  2. Based in Anaheim, 10 mi away

    63/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,091 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,091 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2925 E Ricker Way, Anaheim, CA 92806
  3. Based in Garden Grove, 4 mi away

    63/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.7★ from 684 Google reviews, listed on Google as “Air conditioning contractor”.

    • 4.7★ from 684 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    10652 Trask Ave, Garden Grove, CA 92843
  4. Based in Fountain Valley, 6 mi away

    63/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 301 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 301 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18259 Mt Baldy Cir, Fountain Valley, CA 92708
  5. Based in Laguna Hills, 19 mi away

    62/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 3,589 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 3,589 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    23221 Peralta Dr Ste C, Laguna Hills, CA 92653
  6. Based in Gardena, 17 mi away

    62/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 1,770 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,770 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    18012 S Figueroa St, Gardena, CA 90248
  7. Based in Santa Fe Springs, 9 mi away

    62/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 223 Google reviews, listed on Google as “Air conditioning contractor”.

    • 5.0★ from 223 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    16033 Valley View Ave, Santa Fe Springs, CA 90670
  8. Based in Torrance, 20 mi away

    61/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 1,990 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 1,990 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2807 Oregon Ct F3, Torrance, CA 90503

HVAC contractors ranked #26 to #50

#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 1,336 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Westminster, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26AARD Mechanical Air Conditioning & Heating614.9★ (547)13 mi
27Orange Coast Plumbing614.9★ (764)15 mi
28American Service Alliance615.0★ (75)4 mi
29Titan Air Conditioning614.9★ (439)13 mi
30Greenstar Home Services / RighTime Home Services614.6★ (967)10 mi
31One Hour Heating & Air Conditioning615.0★ (143)9 mi
32Avis Plumbing and Air614.7★ (438)9 mi
33Monkey Wrench Plumbing, Heating, Air & Electric614.9★ (310)12 mi
34Joseph Air Service614.9★ (73)3 mi
35Cooling & Heating Repair614.8★ (402)12 mi
36Service All-Stars Plumbing Heating and Air614.8★ (178)8 mi
37South County Air Services615.0★ (193)12 mi
38Just Right Services604.9★ (846)19 mi
39Rooter Hero Plumbing & Air of Costa Mesa604.9★ (143)9 mi
40Air Care605.0★ (1,350)25 mi
41HVAC Alliance Expert605.0★ (76)7 mi
42Quality HVAC Huntington Beach PROPERTIES605.0★ (30)1 mi
43Price Air HVAC605.0★ (138)5 mi
44Klondike Air Conditioning & Heating604.9★ (326)8 mi
45John Stevenson Plumbing, Heating & Air Conditioning604.9★ (680)19 mi
46JW Plumbing, Heating and Air604.8★ (2,541)24 mi
47Biard & Crockett Plumbing, Heating, and Air Conditioning604.9★ (1,715)10 mi
48Superior Anaheim Cooling & Heating605.0★ (36)3 mi
49Airplus of California Inc.604.9★ (1,325)23 mi
50Triton Air & Plumbing604.8★ (1,069)20 mi

Also serving Westminster

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.

Unranked HVAC contractors serving Westminster
BusinessGoogle ratingDistance
Absolute Airflow3.8★ (6)In Westminster
Advantage Air5.0★ (2)7 mi
Big Wave Heating and Air Conditioning5.0★ (138)7 mi
BlueNest Climate ExpertsIn Westminster
Can DO Handyman3.0★ (2)4 mi
CERTIFIED CONSTRUCTION HVAC SERVICES5.0★ (2)6 mi
FreshFusion HVAC5.0★ (2)6 mi
Heating and Air Conditioning5.0★ (2)7 mi
Koolrite Hvac5.0★ (2)6 mi
Penguin Heating and Air5.0★ (144)10 mi
Power Pro Plumbing Heating & Air4.8★ (231)8 mi
Premier HVAC Repair WestminsterIn Westminster
Premier HVAC Repair WestminsterIn Westminster
Reeves Heating and Cooling5.0★ (2)7 mi
Sears Heating and Air Conditioning2.5★ (2)7 mi
Sears Heating and Air Conditioning5.0★ (2)8 mi
Service All-Stars Plumbing Heating and Air Comfort4.6★ (286)10 mi
Trusted Westminster HVACIn Westminster
Westminster Heating & Air Conditioning ExpertsIn Westminster
Zach Taylor Heating and Air5.0★ (2)4 mi

How much do HVAC contractors cost in Westminster?

National price ranges in USD, not adjusted for Westminster. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Westminster?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in California

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).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

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

When to hire an HVAC contractor in California

California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.

How we ranked Westminster HVAC contractors

We scored 1,336 Westminster 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Westminster data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Westminster: frequently asked questions

Who is the best HVAC contractor in Westminster?

By CR Score, the highest-ranked HVAC contractor in Westminster, CA is Absolute Airflow Air Conditioning, Heating and Plumbing with a CR Score of 67/100. It has 4.8★ from 4,319 Google reviews. It is open 24/7. Dial One Sonshine Heating, Air & Plumbing (#2) and Power Pro Plumbing Heating & Air (#3) follow. We ranked 1,336 HVAC contractors on ten factors, last updated October 22, 2026.

How many HVAC contractors are there in Westminster?

ContractorsRanked ranks 1,336 HVAC contractors serving Westminster, CA. 1 of them is based in Westminster; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Westminster are open 24/7?

447 ranked HVAC contractors in Westminster post 24/7 hours. The highest-ranked are Absolute Airflow Air Conditioning, Heating and Plumbing (#1), Dial One Sonshine Heating, Air & Plumbing (#2) and Power Pro Plumbing Heating & Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Westminster work on weekends?

1,046 of 1,336 ranked HVAC contractors post Saturday hours and 734 post Sunday hours. The highest-ranked open Saturdays are Absolute Airflow Air Conditioning, Heating and Plumbing (#1), Dial One Sonshine Heating, Air & Plumbing (#2) and Power Pro Plumbing Heating & Air (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in California?

In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).

How much does ac replacement cost in Westminster?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Westminster. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Westminster HVAC contractors have?

The median Google rating among 1,336 rated HVAC contractors in Westminster is 4.9★, with a median of 18 reviews. Service Champions Plumbing, Heating & AC has the most, 6,978 reviews, and ranks #22. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Westminster?

California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.

Update log for Westminster

  1. October 2026: CR Scores recalculated for 1,336 hvac contractors serving Westminster.
  2. October 2026: 9 duplicate listings merged.

More HVAC contractors and Westminster pages

Other trades in Westminster