#1 On Time Home Services
Temecula (Business Park Dr) · Licensed since 2005
Family-operated Temecula HVAC and plumbing company that repairs and installs air conditioners, furnaces and heat pumps across the Temecula Valley and Inland Empire.
Best heat pump installation companies in Temecula, CA
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#2 Advanced Heating & Air Conditioning
Temecula (Rio Nedo) · Licensed since 2008
Family-owned Temecula company, founded in 2008, that repairs, installs and maintains heating and air conditioning for homes and businesses.
#3 EMT-HVAC
Murrieta (French Valley side) · Licensed since 2018
Veteran-owned Murrieta heating and air conditioning company, founded by U.S. military veteran Earnest, serving homes around Murrieta and Temecula.
24/7
#4 Encore Plumbing & Air
Murrieta · Licensed since 2019
Family-owned Murrieta plumbing and HVAC company that repairs and installs air conditioning and furnaces for homes and businesses in the Temecula Valley.
24/7
#5 Affordable Heating and Air Conditioning
Murrieta · Licensed since 2024
Family-owned Murrieta company, in business since 1995, that repairs, installs and maintains home heating and air conditioning around Temecula and Murrieta.
24/7
#6 XTREME Heating & Air Conditioning
Temecula (Remington Ave) · Licensed since 2025
Temecula heating and air conditioning company and Bryant dealer serving homes, apartments and commercial buildings in the Temecula Valley since 2001.
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Rankings follow our published criteria (see How we rank). License details come from the California Contractors State License Board (CSLB); services, hours and prices from each company's own website. Confirm prices and availability with the company.
About HVAC in Temecula
Temecula sits inland in southwest Riverside County, and at the long-running Elsinore weather station about 25 km to the north-west July and August highs average 98°F while January nights average about 36°F, so homes here need both reliable cooling and heating. California licenses HVAC contractors through the Contractors State License Board (CSLB) under the C-20 warm-air heating, ventilating and air-conditioning class. Ranked by license record and years licensed, never by payment. Checked 28 October 2026.