#1 Comfort Air, Inc.
Stockton · Licensed since 1946
Family-owned Stockton mechanical contractor, in business since 1946, that installs and repairs heating, cooling and plumbing systems for homes and commercial buildings.
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Best furnace & heater repair companies in Stockton, CA
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#2 Greener Solutions Heat & AC
Stockton · Licensed since 1981
Stockton heating and air conditioning contractor, founded in 1981 and run by the founder's son, that repairs, installs and maintains furnaces, air conditioners and ductwork for Central Valley homes.
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#3 Lovotti Inc
Stockton · Licensed since 2005
Family-owned Stockton contractor, operating since 2006, that handles heating and air conditioning alongside electrical, refrigeration and plumbing work for homes and businesses.
#4 Queirolo's Heating & Air Conditioning
Stockton · Licensed since 2005
Stockton heating and air conditioning company started in 2005 by the son of local HVAC contractor Robert P. Queirolo, serving homes and commercial customers.
#5 Coaches HVAC ExtraordinAIR
Stockton · Licensed since 2020
Family-owned Stockton heating and air conditioning company working on homes and businesses since 2010.
#6 Simi Heating & Air
Stockton · Licensed since 2021
Family-owned Stockton company run by Craig Simi and his sons that installs, repairs and maintains heating and cooling systems for homes and businesses.
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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 Stockton
Stockton summers are hot and dry, with July afternoons averaging about 94°F at the city's airport, and January nights average near 38°F, so homes rely on air conditioning for months and on furnaces or heat pumps in winter. HVAC contractors in California are licensed by the Contractors State License Board (CSLB) under the C-20 Warm-Air Heating, Ventilating and Air-Conditioning classification. Several of Stockton's older HVAC firms also do plumbing, sheet metal or solar work. Ranked by license record and years licensed, never by payment. Checked 27 October 2026.