Whether you're replacing an aging AC system or adding a heat pump for year-round comfort, the right Los Angeles HVAC contractor pairs proper load sizing with strong manufacturer support. Local summers make a properly sized AC system worth getting right, and each company below is licensed with a deep, verifiable review history.
| # | Company | Rating | Reviews | Since | Best for |
|---|---|---|---|---|---|
| 1 | Brody Pennell Heating & Air ConditioningLos Angeles (West LA) | ★★★★★ | 4,670 | 1945 | The most established premium full-service HVAC name in LA |
| 2 | Affordable Heating and AirChatsworth (serves LA County) | ★★★★★ | 1,300 | — | Fast, well-reviewed same-day repair and install |
| 3 | Around the Clock Heating and Air ConditioningNorth Hollywood | ★★★★★ | 289 | 1967 | A long-established family-owned Lennox specialist |
| 4 | Air-Tro, Inc.Monrovia (San Gabriel Valley & LA) | ★★★★★ | — | 1969 | Pasadena-area multi-trade licensed contractor |
| 5 | Zodiac Heating & Air ConditioningVan Nuys (LA & the Valley) | ★★★★★ | 90 | 1984 | An independent, never-franchised family operation |
Ordered by our editorial score. Ratings reflect public review data as of June 2026. See how we rank →
Best for: The most established premium full-service HVAC name in LA
Operating since 1945; Carrier factory-authorized dealer and 2021 Carrier President's Award recipient with NATE-certified techs.
Best for: Fast, well-reviewed same-day repair and install
4.9-star Google rating from 1,300+ reviews with an A+ BBB rating; 24/7 same-day emergency service.
Best for: A long-established family-owned Lennox specialist
Family-owned since 1967; Lennox Premier Dealer with factory-trained, NATE-certified technicians and an A+ BBB rating.
Best for: Pasadena-area multi-trade licensed contractor
Family-owned since 1969; holds HVAC plus electrical, plumbing, refrigeration and general licenses; ACCA Contractor of the Year.
Best for: An independent, never-franchised family operation
Family-owned and operated since 1984 with NATE-certified technicians; Carrier dealer.
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A complete central AC or heat-pump system replacement usually lands in the mid-to-high four figures and up, driven by system tonnage, efficiency rating and ductwork condition. Ask for a Manual J load calculation, not a rule-of-thumb estimate.
In our 2026 review, Brody Pennell Heating & Air Conditioning ranks first, with a 4.9-star rating across 4,670+ reviews plus strong licensing and credentials. Affordable Heating and Air and Around the Clock Heating and Air Conditioning round out the top three. See the full ranking and our scoring method below.
A complete central AC or heat-pump replacement typically starts in the mid-to-high four figures and rises with system tonnage, efficiency and ductwork condition. Insist on a Manual J load calculation rather than a rule-of-thumb estimate.
Heat pumps handle both heating and cooling in one efficient system and are increasingly popular for local climates. Several companies in this guide install both — ask each for a side-by-side cost and efficiency comparison for your home.
We weigh active CSLB licensing, verified review volume and rating, years of local experience, and manufacturer certifications such as NATE or factory-dealer status. Placement cannot be purchased.