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Dennis's Heating & Cooling

No ratings collected yet San Francisco, California

1906 LANE STREET, San Francisco, CA 94124, USA

License checked License #1137367 1 yrs experience

Verify this license yourself at the California Contractors State License Board (CSLB).

(415) 724-7494
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San Francisco's cool, foggy climate and its mix of older buildings and steep, narrow streets create steady demand for dependable heating and cooling. Dennis's Heating & Cooling serves homeowners and residents across the city, where a system may sit idle through much of summer yet work hard through damp winter months.

Local market — San Francisco

HVAC pros here

218

Have a website

56%

Cooling demand

113

Heating demand

2,909

Cooling/heating demand = annual degree days (NOAA). Electricity = state residential average (EIA).

Services Offered

AC Services in San Francisco Heating Services in San Francisco Ductwork Services in San Francisco Heat Pumps in San Francisco Furnace Services in San Francisco Thermostat Services in San Francisco Emergency HVAC in San Francisco Maintenance & Tune-up in San Francisco

Service Area

San Francisco, California All of California

Location

About Dennis's Heating & Cooling

The company offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. Typical work includes inspecting cooling components, checking heating controls and safety switches, sealing and testing ductwork for airflow, installing or programming thermostats, and servicing heat pumps and furnaces. Emergency calls address sudden breakdowns, while scheduled tune-ups help systems run efficiently and catch small faults early.

Dennis's Heating & Cooling holds California state contractor license #1137367, as listed in the state contractor registry. The license has been active since 2025, and the business has more than one year of experience in the trade.

Service is focused on San Francisco, so the team works with the building types and local conditions common to the area. Homeowners comparing local professionals should ask about the scope of work, confirm license status, and request written estimates. Those looking for an HVAC contractor near me can review Dennis's Heating & Cooling alongside other San Francisco listings on HVAC Service Fast.

Frequently Asked Questions

What services does Dennis's Heating & Cooling offer?
Dennis's Heating & Cooling offers AC Services, Heating Services, Ductwork Services, Heat Pumps, Furnace Services, Thermostat Services, Emergency HVAC, and Maintenance & Tune-up. Contact the company directly to confirm the details of any specific job.
Which areas does Dennis's Heating & Cooling serve?
Dennis's Heating & Cooling serves San Francisco, California. Confirm service availability for your address before scheduling.
How do I choose a licensed, insured HVAC contractor in San Francisco?
Check the contractor's license status on the California contractor registry and ask for proof of liability and workers' compensation insurance. Compare at least two or three written estimates before committing.
What should I check before hiring an HVAC professional?
Confirm the license number, read recent reviews, and make sure the estimate lists the equipment, labor, warranty terms, and total cost. Ask who will perform the work and whether permits are required.
What are the signs it is time to call an HVAC professional?
Call a professional if your system blows warm air when set to cool, makes grinding or banging noises, cycles on and off frequently, or causes a sudden rise in energy bills. A gas odor, a yellow or flickering burner flame, or a carbon monoxide alarm requires immediate attention from emergency services.

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HVAC Service Fast is an independent HVAC directory and is not affiliated with this business. Listing details are compiled from publicly available information and may be incomplete or outdated. We do not endorse or guarantee any provider — please verify licensing and insurance directly. See our Disclaimer.