#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 ductless mini-split 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 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.