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About Us

Ready to improve your heating and cooling system? Contact us now to schedule your free consultation and learn how we can help enhance the comfort of your home or business.

Experience the Gosal Difference

Since 1992, Gosal Heating & Air Conditioning has provided high-quality HVAC services across Castro Valley, Fremont, Hayward, Milpitas, Newark, San Jose, Saratoga, Sunnyvale, and Union City. Specializing in the installation and repair of air conditioning and furnace systems for both residential and commercial settings, our dedication to quality service has earned us a loyal customer base and a solid reputation.

Why Choose Us?

Choose Gosal Heating & Air Conditioning for unmatched dedication and quality in HVAC services. We offer competitive pricing for homes and small businesses and are a trusted name in the community, maintaining an A+ rating with the Better Business.

We are committed to providing high-quality service at competitive prices for homes and small businesses alike.

A proud member of the Better Business Bureau since 1998 with an A rating, showcasing our consistent customer satisfaction.

Our experienced and well-compensated team enjoys full benefits, ensuring that our technicians are motivated to provide the best service possible.

We deeply value our relationships with our customers and are grateful for the opportunity to serve you.

Our HVAC Services

Air Conditioning Services

Stay cool and comfortable with our comprehensive air conditioning services. From efficient installations to timely repairs, we ensure your system runs smoothly all summer long.

Heating Services

Keep warm and cozy during the colder months with our expert heating services. We provide installations, maintenance, and repairs for all types of heating systems.

Products We Offer

Browse our selection of top-quality HVAC products. As an authorized Carrier dealer, we offer the best in air conditioners, furnaces, heat pumps, and more to suit your specific needs.

Ensure your home remains cool and comfortable with a HVAC system professionally installed by Gosal Heating & Air Conditioning.

Get the best air conditioning Installation

Get the best heating Installation

Request Quote

Ready for enhanced comfort and efficiency? Fill out our form for a personalized estimate. Let Gosal Heating & Air Conditioning provide you with competitive pricing and the information you need to make the best choice. Get started today!

Customer Testimonials

See what our satisfied customers are saying! Browse through our testimonials to learn about the experiences others have had with Gosal Heating & Air Conditioning and discover why we are a trusted choice for HVAC solutions.
I have worked with Gosalair in two projects. And one repair work. The founder owner Kesar Singh is prompt, technical, fully hands-on, sincere, quick to reply with quote, explain, courteous and execute the job quickly. He is pricing is reasonable, lower than anyone with comparable experience and skill. I recommend him fully to anyone.
Ramarao C.
Fremont, CA
Mr. Kesar Singh did a wonderful job to replace the Thermostat for my house today and also cleaned the air filter as well. The air filter had never been clean since it installed back to 2010; I am sure it will save money later this year. Thank you for his professional advice. He is highly recommended to others. My furnace is working well.
Shan L.
San Francisco, CA
Got bids from several contractors and despite some of the poor review on here I trusted my gut and went with Gosal.

Great experience, they installed a new 4 ton AC unit and new furnace for me.
Rod M.
San Francisco, CA