Licensed and Bonded HVAC Company in San Francisco, CA
We Have Hundreds of 5-Star Reviews on Google and Yelp!
Heating, Furnace & Cooling Service
24/7 Emergency Service Available
We Have Hundreds of 5-Star Reviews on Google and Yelp!
Commercial & Residential HVAC Service
24/7 Emergency Service Available
We Have Hundreds of 5-Star Reviews on Google and Yelp!
Expert Heating and Cooling Services
Dennis's Heating & Cooling delivers full-service residential and commercial HVAC solutions across San Francisco, Daly City, San Mateo County, and Santa Clara County, providing expert installation, repair, and maintenance for heat pumps, furnaces, air conditioners, wall heaters, and indoor air quality systems. As a fully licensed, bonded, family-owned company with more than 30 years of hands-on experience, we’re known for dependable workmanship, honest service, and fast response times. Whether you need routine maintenance, system upgrades, or urgent repairs, our skilled technicians are available 24/7 for emergency services to quickly restore comfort and keep your home or business running efficiently year-round.
24/7 Emergency HVAC Services
When your heating or cooling system breaks down, you need help fast—no matter the time of day. Dennis's Heating & Cooling provides dependable 24/7 emergency HVAC repair across San Francisco, CA, with rapid response for both residential and commercial properties. From late-night furnace failures to weekend AC breakdowns, our experienced technicians are always on call to restore your comfort quickly. No one should have to endure a home, apartment, or workplace that’s too hot or too cold. For immediate service and reliable emergency repairs, call Dennis’s anytime—day or night—at 415-724-7494.
Discounts for Seniors, Military, First Responders, and Veterans
As a locally owned business with over 30 years of experience, we care deeply about the communities and neighbors we serve and want to give back to them. Are you a senior, first responder, or veteran? If so, we want to offer you exclusive discounts and deals on our HVAC services to show our appreciation. The next time you need heating or cooling repair or replacement, please ask us about the discounts we have available to you. We will gladly and proudly offer you great service at great prices.
Your Comfort Is Our Priority!
At Dennis's Heating & Cooling, we understand the inconvenience and stress a sudden heating or cooling problem can bring. Even a short interruption can disrupt the comfort of your home or business. That’s why our expertly trained technicians are prepared to install, service, and repair heaters, furnaces, and air conditioners throughout San Francisco neighborhoods like Pacific Heights, North Beach, the Marina District, Japantown, Noe Valley, and Hayes Valley. Every member of our team stays current with the latest equipment, tools, and HVAC technology to ensure efficient, reliable results. You can count on us to treat your property and system with care and respect, working quickly and professionally to restore your comfort as soon as possible.