# HVAC contractors in Diamond Bar, CA

There are 173 HVAC contractors with a phone number within 10 miles of Diamond Bar, CA, from public Google Maps data and state license records. 10 have a state license we could confirm, and those with a Google listing average 4.9 stars across 27,086 reviews.

Page with map and filters: https://pros411.com/en/diamond-bar-ca/hvac

## Businesses with a phone number, nearest first

- [Fresh Start Heating & AC Repair Service Diamond Bar](https://pros411.com/en/pro/lax-g-0x61b928a9254f0ff6): 0.1 mi · (909) 551-2090 · Google 5.0 (5) · public data, unclaimed
- [Evergreen Air Conditioning & HAVC Professionals Diamond Bar](https://pros411.com/en/pro/lax-g-0xd8a0e411c1ba6b4c): 0.3 mi · (909) 413-0245 · Google 5.0 (4) · 24 hours · public data, unclaimed
- [AVEO INC](https://pros411.com/en/pro/lax-r-cslb969881): 0.8 mi · (909) 538-9188 · license CSLB 969881 confirmed · public data, unclaimed
- [Steve's Heating and Air Conditioning Repair](https://pros411.com/en/pro/lax-g-0xb553f047a7a2aed8): 2.1 mi · (909) 396-9602 · Google 4.9 (8) · 24 hours · public data, unclaimed
- [D C INTEGRATE INC](https://pros411.com/en/pro/lax-r-cslb945486): 2.8 mi · (909) 598-5921 · license CSLB 945486 confirmed · public data, unclaimed
- [McMaster Mechanical](https://pros411.com/en/pro/lax-g-0x768459d4ae867cc2): 3 mi · (714) 497-0225 · Google 5.0 (81) · public data, unclaimed
- [Dykier Engineering Inc](https://pros411.com/en/pro/lax-g-0xea970bdc909e1066): 3.4 mi · (714) 255-0429 · Google 5.0 (1) · public data, unclaimed
- [Referral Air Conditioning Service](https://pros411.com/en/pro/lax-g-0x44352df716caf9b7): 3.6 mi · (840) 230-3649 · Google 5.0 (3) · 24 hours · public data, unclaimed
- [Cornerstone Heating & AC Repair Service Walnut](https://pros411.com/en/pro/lax-g-0xcc61299b9d26d58d): 3.9 mi · (909) 352-4522 · Google 5.0 (9) · 24 hours · public data, unclaimed
- [Superior Radiator & Air Conditioning](https://pros411.com/en/pro/lax-g-0xf0720678da779249): 4.2 mi · (626) 333-9618 · Google 4.4 (78) · public data, unclaimed
- [Mike's Heating & Air Conditioning](https://pros411.com/en/pro/lax-g-0x24e04f1e6ae343cc): 5.1 mi · (909) 396-4489 · Google 4.7 (50) · public data, unclaimed
- [HVAC Alliance Expert](https://pros411.com/en/pro/lax-g-0x1dff1906bb52f499): 5.1 mi · (714) 790-3231 · Google 4.9 (62) · 24 hours · public data, unclaimed
- [ABC Heating & Air Conditioning](https://pros411.com/en/pro/lax-g-0x2b5be26e25c8d358): 5.2 mi · (951) 590-3585 · Google 4.9 (567) · public data, unclaimed
- [choice air](https://pros411.com/en/pro/lax-g-0x628921500c54ea49): 5.3 mi · (714) 388-7986 · Google 5.0 (2) · public data, unclaimed
- [PEACE & JOY CONSTRUCTION INC](https://pros411.com/en/pro/lax-r-cslb1103200): 5.3 mi · (323) 208-1998 · license CSLB 1103200 confirmed · public data, unclaimed
- [Apollo Air Conditioning & Heating - Chino Hills](https://pros411.com/en/pro/lax-g-0xca0f47da35852e7): 5.4 mi · (909) 637-3044 · Google 5.0 (8) · public data, unclaimed
- [San Dimas Air AC Repair](https://pros411.com/en/pro/lax-g-0xa3216028173a66ea): 5.4 mi · (909) 479-2593 · 24 hours · public data, unclaimed
- [Hunter's Heating & Air/ Kevin Hunter](https://pros411.com/en/pro/lax-g-0xf13c4b81607f92f0): 5.4 mi · (951) 231-0716 · Google 4.7 (13) · public data, unclaimed
- [M P Air](https://pros411.com/en/pro/lax-g-0x22a57cc9fe71dc80): 5.6 mi · (909) 234-4830 · Google 5.0 (11) · public data, unclaimed
- [Chino Hills Pro Air Conditioning Service](https://pros411.com/en/pro/lax-g-0x48d9dde1b746bd6c): 5.7 mi · (909) 787-2620 · Google 5.0 (16) · 24 hours · public data, unclaimed
- [Air Med Heating & Air Conditioning](https://pros411.com/en/pro/lax-g-0x704499a613a871e9): 5.7 mi · (909) 364-9833 · Google 5.0 (333) · public data, unclaimed
- [High Flow Heating & AC Repair](https://pros411.com/en/pro/lax-g-0xe560ae61e5884eb0): 5.9 mi · (714) 464-5299 · Google 5.0 (1) · public data, unclaimed
- [Econo Air Heating & A/C](https://pros411.com/en/pro/lax-g-0x4b7276c6931e062a): 6.1 mi · (800) 503-2666 · public data, unclaimed
- [ACE Air Conditioning & Heating Service Inc](https://pros411.com/en/pro/lax-g-0x313332ba1f22d2ed): 6.3 mi · (909) 539-3272 · Google 5.0 (25) · public data, unclaimed
- [J D H ELECTRIC INC](https://pros411.com/en/pro/lax-r-cslb1038697): 6.4 mi · (626) 616-0861 · license CSLB 1038697 confirmed · public data, unclaimed
- [BOMING Air Conditioning & Heating HVAC](https://pros411.com/en/pro/lax-g-0xe36a64e137d8c8f5): 6.5 mi · (657) 275-5855 · Google 5.0 (2) · public data, unclaimed
- [Voltaic Construction](https://pros411.com/en/pro/lax-g-0xe7ec7823222e820): 6.5 mi · (877) 646-8658 · Google 4.9 (138) · public data, unclaimed
- [Metz Air Control, Plumbing, Heating & Air](https://pros411.com/en/pro/lax-g-0xd521ec94d94a4426): 6.5 mi · (909) 925-0513 · Google 4.9 (1220) · 24 hours · public data, unclaimed
- [Sinclair Air Systems](https://pros411.com/en/pro/lax-g-0x3e937256199c6cb2): 6.5 mi · (626) 331-4541 · Google 4.6 (38) · public data, unclaimed
- [ComfortFix Air Solutions Co.](https://pros411.com/en/pro/lax-g-0x8254aa0d7667cced): 6.7 mi · (657) 210-3914 · Google 5.0 (3) · public data, unclaimed
- [AirPro West Covina AC Repair](https://pros411.com/en/pro/lax-g-0xb1b33b0053738144): 6.7 mi · (626) 591-8658 · Google 5.0 (5) · 24 hours · public data, unclaimed
- [AA Atlas Plumbing, Heating, & Air](https://pros411.com/en/pro/lax-g-0x7b9e01085ef8cc0e): 6.7 mi · (714) 970-5885 · Google 5.0 (200) · public data, unclaimed
- [Accurate Comfort Air Conditioning And Heating](https://pros411.com/en/pro/lax-g-0x91f1b6340939c398): 6.9 mi · (714) 325-7042 · Google 4.9 (211) · 24 hours · public data, unclaimed
- [Brea/Orange County Plumbing, Heating & Air Conditioning](https://pros411.com/en/pro/lax-g-0xc331eba0c943b4d2): 6.9 mi · (714) 409-5489 · Google 4.8 (155) · 24 hours · public data, unclaimed
- [Beacon Trust Air Conditioning](https://pros411.com/en/pro/lax-g-0x504089e4d962b24a): 6.9 mi · (657) 387-8018 · public data, unclaimed
- [Taiji Air Conditioning & Heating, Inc](https://pros411.com/en/pro/lax-g-0x8fa10d6165a953d4): 7.1 mi · (626) 225-9825 · Google 5.0 (17) · public data, unclaimed
- [Advanced Plumbing Heating and Air Conditioning Inc.](https://pros411.com/en/pro/lax-g-0xca79dc9fe0fae754): 7.1 mi · (909) 592-5733 · Google 4.5 (34) · public data, unclaimed
- [Choice Home Services](https://pros411.com/en/pro/lax-g-0xe06c917d34b42c47): 7.1 mi · (888) 991-3373 · Google 4.9 (80) · public data, unclaimed
- [Whole House Fan Company](https://pros411.com/en/pro/lax-g-0x47eea604b725dcc3): 7.1 mi · (909) 305-8855 · Google 4.9 (303) · public data, unclaimed
- [Marathon Plumbing, Heating and AC Repair](https://pros411.com/en/pro/lax-g-0x36d5dd981c445de8): 7.1 mi · (626) 605-3389 · Google 4.8 (375) · public data, unclaimed
- [Los Angeles Air Conditioning, Inc.](https://pros411.com/en/pro/lax-g-0xb007a844c75244e): 7.1 mi · (909) 596-7077 · Google 4.2 (5) · public data, unclaimed
- [CALCOMS Air Conditioning And Heating](https://pros411.com/en/pro/lax-g-0xd67794b7d3abfbdb): 7.1 mi · (714) 726-5655 · Google 5.0 (24) · public data, unclaimed
- [Western Air Mechanical](https://pros411.com/en/pro/lax-g-0xcb79e291588561cc): 7.2 mi · (800) 203-6916 · Google 4.9 (440) · 24 hours · public data, unclaimed
- [Alpine Plumbing, Heating, and Air](https://pros411.com/en/pro/lax-g-0x220d24b220ab8adb): 7.2 mi · (626) 608-1032 · Google 4.9 (910) · public data, unclaimed
- [Wintri Heating and Air](https://pros411.com/en/pro/lax-g-0x9c85531b0b6f6372): 7.3 mi · (626) 777-7773 · Google 5.0 (136) · public data, unclaimed
- [Reliable Climate Systems](https://pros411.com/en/pro/lax-g-0xef1b9fcd1e30cbbb): 7.3 mi · (657) 643-0324 · 24 hours · public data, unclaimed
- [Air-1 Air Conditioning & Heating Repairs](https://pros411.com/en/pro/lax-g-0xb361c13ff7f58291): 7.3 mi · (909) 458-0950 · Google 5.0 (8) · 24 hours · public data, unclaimed
- [USA Pro Service](https://pros411.com/en/pro/lax-g-0xc244b6f87f4e0a15): 7.3 mi · (888) 912-5714 · Google 4.9 (47) · public data, unclaimed
- [HX BREEZETECH HVAC SERVICES](https://pros411.com/en/pro/lax-g-0x7d6e82dfe33a7103): 7.4 mi · (747) 290-2229 · Google 5.0 (1) · public data, unclaimed
- [Mannys Heating and Air Conditioning](https://pros411.com/en/pro/lax-g-0xfc3c0171306c01dd): 7.4 mi · (626) 388-4821 · 24 hours · public data, unclaimed
- [Marvel Air Conditioning & Heating, Inc.](https://pros411.com/en/pro/lax-g-0x9dbd69626b848000): 7.4 mi · (909) 392-9722 · Google 4.9 (207) · public data, unclaimed
- [Yorba Linda Solutions](https://pros411.com/en/pro/lax-g-0x8f5b4eb4d253bc83): 7.4 mi · (714) 707-5455 · Google 4.6 (10) · public data, unclaimed
- [AAA Covina AC Repair](https://pros411.com/en/pro/lax-g-0x92c080ff978218a4): 7.4 mi · (626) 591-8667 · Google 5.0 (6) · 24 hours · public data, unclaimed
- [ENOVATIVE MECHANICAL AND ENERGY SERVICES](https://pros411.com/en/pro/lax-r-cslb1036688): 7.4 mi · (800) 346-6160 · license CSLB 1036688 confirmed · public data, unclaimed
- [SOUTHWEST MECHANICAL INC](https://pros411.com/en/pro/lax-r-cslb761417): 7.4 mi · (626) 966-7880 · license CSLB 761417 confirmed · public data, unclaimed
- [Budget Yorba Linda HVAC Services](https://pros411.com/en/pro/lax-g-0x6dd0b22e277a9b8f): 7.4 mi · (657) 387-0612 · Google 5.0 (6) · 24 hours · public data, unclaimed
- [AirCare Conditioning Repair](https://pros411.com/en/pro/lax-g-0x4223ec8fcd3edf9f): 7.4 mi · (858) 360-8145 · Google 4.0 (3) · public data, unclaimed
- [DMS Air Conditioning](https://pros411.com/en/pro/lax-g-0x1880b56132989311): 7.4 mi · (626) 969-7700 · Google 4.6 (15) · public data, unclaimed
- [Evergreen Harbor HVAC Service San Dimas](https://pros411.com/en/pro/lax-g-0x286f5dcbc5e66331): 7.4 mi · (626) 718-5212 · Google 5.0 (2) · 24 hours · public data, unclaimed
- [The Whitman Co., Inc.](https://pros411.com/en/pro/lax-g-0x61589cabddba3bc4): 7.4 mi · (714) 693-4822 · 24 hours · public data, unclaimed

## Frequently asked questions

### How many HVAC contractors are there in Diamond Bar, CA?

There are 173 with a phone number within 10 miles, from public Google Maps data and state license registries.

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

In California the license is issued by the Contractors State License Board (CSLB); you can look up the number at https://www.cslb.ca.gov. Pros411 shows "License verified" when the number is in that registry and matches the business phone. 10 of the HVAC contractors on this list have it confirmed.

### Are there 24-hour HVAC contractors in Diamond Bar, CA?

Yes: 63 list 24-hour hours or take emergency calls. Use the "24/7 emergencies" filter on the list.

### Are there HVAC contractors who speak Spanish in Diamond Bar, CA?

Yes: 1 says on their website that they serve customers in Spanish (for example "Se habla español"). Use the "Speaks Spanish" filter on the list.

### How do I contact an HVAC contractor?

Call or WhatsApp them directly from the list or their listing. Pros411 charges customers no fee and is not a middleman: you deal with the pro directly.

### Why do some listings show first?

At the top, in a yellow box, are featured listings: they are paid and labeled "Featured". Then come registered pros, in the order they last bumped their listing, and at the end businesses from public data, from nearest to farthest.

## Weather and your home in Los Angeles

- The hottest months are August and September, with 26 days a year at 90°F or more and 2 at 100°F or more. (source: https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals)
- Since January 1, 2023, a new central AC installed here must meet the Southwest regional standard: at least 14.3 SEER2 plus a minimum EER2, which measures efficiency in peak heat (for split systems under 45,000 BTU: 11.7, or 9.8 if the unit is 15.2 SEER2 or higher). (source: https://www1.eere.energy.gov/buildings/appliance_standards/pdfs/2023_CAC_Standards_FAQ_10-5-2022_Final.pdf)
- Palisades fire (January 7, 2025): 23,448 acres and 6,845 structures destroyed. (source: https://www.fire.ca.gov/incidents/2025/1/7/palisades-fire)
- Eaton fire (January 7, 2025): 14,021 acres and 9,419 structures destroyed. (source: https://www.fire.ca.gov/incidents/2025/1/7/eaton-fire)

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