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50+ Years
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Emergency
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Expert HVAC Installation & Repair Services in Brisbane, CA
Carol Flynn has been a trusted name in the HVAC industry since 1954, dedicated to providing superior heating and cooling solutions for residential and commercial clients. Our team of NATE-certified technicians brings decades of combined experience and technical expertise to every project, ensuring efficient installations, repairs, and maintenance. We specialize in advanced air duct testing and sealing systems, furnace and air conditioning services, and energy-efficient solutions tailored to the unique needs of the San Francisco Bay Area.

With a focus on customer satisfaction, we offer free estimates, safety inspections, and personalized recommendations to help clients reduce energy costs while enhancing comfort. Recognized as Diamond Certified, our commitment to quality craftsmanship and exceptional service has made us a local favorite for over 65 years. We serve Hillsborough, Menlo Park, Redwood City, San Carlos, Foster City, and surrounding areas, providing 24/7 emergency support for urgent HVAC needs.
Services
Furnaces Air Conditioning Air Duct Cleaning Heat Pumps Preventive Maintenance Repairs Ductless Systems Air Purifiers
Details
  • Year established: 1954
Highlights and features
  • 65+ years of HVAC experience serving the Bay Area
  • NATE-certified technicians for expert installations and repairs
  • Patented Energy Star-approved air duct sealing system
  • 24/7 emergency service for urgent heating and cooling needs
  • Free estimates and energy efficiency consultations
Associations and certifications
  • NATE Certified
  • Diamond Certified
What people say
Prompt service Energy savings Expert technicians Reliable repairs
Services
Furnace Installation
We provide expert furnace installation for residential and commercial properties, ensuring energy-efficient heating solutions tailored to your space. Our NATE-certified technicians use high-quality products to deliver reliable warmth and lower energy bills. With over 65 years of experience, we guarantee precision installation and long-term performance.
Air Conditioning Repair
Our 24/7 air conditioning repair service addresses urgent cooling needs with rapid response times and lasting fixes. We service all makes and models, including central AC units and ductless systems. Backed by Diamond Certification, our technicians ensure optimal performance and comfort during peak summer months.
Air Duct Cleaning
We offer comprehensive air duct cleaning to improve indoor air quality and system efficiency. Using advanced techniques, we remove debris and contaminants from ductwork in homes and offices. Regular maintenance reduces allergens and lowers energy costs, ensuring cleaner, healthier air circulation.
Heat Pump Services
Our heat pump installation and repair services provide year-round climate control with energy-efficient technology. We specialize in ductless and central heat pump systems for residential and commercial clients. Expert technicians ensure seamless operation and reduced utility expenses through optimized performance.
Preventive Maintenance
Scheduled preventive maintenance extends HVAC system lifespan and prevents costly breakdowns. Our technicians perform thorough inspections, cleaning, and adjustments to ensure peak efficiency. Regular service includes safety checks and energy-saving recommendations to maintain comfort and reliability.
Questions
What HVAC services do you offer?
We provide furnace and air conditioning installation, repairs, duct cleaning, heat pump services, and preventive maintenance for residential and commercial clients.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency support for urgent heating and cooling system failures.
Which areas do you service?
We serve Hillsborough, Menlo Park, Redwood City, San Carlos, Foster City, and all SF Bay Area counties.
Are your technicians certified?
All technicians are NATE-certified, ensuring expertise in HVAC installation, repair, and maintenance.
Do you offer free estimates?
Yes, we provide free, no-obligation estimates and energy efficiency consultations for new installations.
What makes your duct sealing system unique?
Our patented Energy Star-approved system uses advanced technology to seal leaks, improving efficiency and reducing energy costs.
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Reviews (6)
William Eisensee
Dec 27, 2021 Report
This is the second time we have used Carol Flynn. The first time was to have a wall heater changed to a new furnace put in many years ago. Because we were so happy with there work we used them again to put in a new electric furnace because we want to go green. We didnt even have to think twice before calling them again. As usual they did an excellent job, Marco and Luis was very professional, cleaned up after themselves, and very pleasant to work with. They are the greatest company to work with for your heating and cooling needs. I highly recommend them.
Eric Holmberg-Weidler
Dec 22, 2021 Report
We had Carol Flynn install an all new high efficiency heat pump system to replace our old gas furnace. They were very professional, responsive, and did a great job installing it. It has worked like a charm, with a single problem that one of the thermostats ended up being placed where morning light shines on it, messing up the temperature measurement (not something I would have expected them to catch). I contacted them, and they immediately offered to come out and move the thermostat.
Was extremely happy with their service, would highly recommend!
Paul Tovbin
Oct 27, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Excellent quality of service - so surprising today . Really - great professionals with great focus on the customers! Bravo!!
Service:AC installation
Rachael Walasek
Aug 06, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
We are very happy with the total experience. Hopefully our new system works as well as the Carol Flynn team did. We highly recommend them.
Services:Duct and vent installation,Thermostat installation,Heating system installation,AC installation
Daniel L. Lawson
Jul 06, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Couldn't have had a better experience. Professional, quality work, on time and clean. Thanks Carol Flynn.
Service:Heating system installation
Csaba Halasz
Jun 05, 2021 Report
Carol Flynn installed A/C into our home, and we had a great experience. All members of Carol Flynn's team were very thorough. The job was completed on time, even if this meant that the team had to work longer on the 2nd day. Also, despite being late in the day, the members of the team took their time to walk us through the installed items, thoroughly test everything and explain how to use the system.

After the work has been completed, one of Carol Flynn's team members came back and did some additional fine tuning free of charge. We are very happy with the result and we highly recommend Carol Flynn