(510) 501-5715
Reliable Cooling Solutions for Every Home and Business

HVAC Services in Castro Valley, CA

Beat the heat in Castro Valley with premier air conditioning services from Gosal Heating & Air Conditioning. Whether you need a new installation, urgent repairs, or routine maintenance, our expert team is ready to enhance your comfort with top-quality air conditioning units and services. Experience efficient cooling solutions tailored to your needs.
Ready to take the next step? Request a free, no-obligation quote today to find out how we can meet your HVAC needs.

For Home

Keep your Castro Valley home comfortable year-round with our residential air conditioning services. From energy-efficient installations to fast and effective repairs, we ensure your cooling system is in top condition.

For Business

Ensure your Castro Valley business stays cool and comfortable with our professional air conditioning services. We offer comprehensive solutions for installations, repairs, and maintenance, designed to minimize downtime and maximize comfort.


Explore our wide range of high-performance air conditioning units perfect for any Castro Valley home or business. Our products promise efficiency, durability, and the latest technology in climate control.

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.

Experience the Gosal Difference

At Gosal Heating & Air Conditioning, we’re not just about air conditioning; we’re about creating ideal environments. Our commitment to quality, customer-focused service, and technical excellence makes us a leader in HVAC solutions in Castro Valley. Let us bring you the comfort you deserve with our dependable air conditioning services.

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 Castro Valley 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.

Your Trusted Partner for All Major HVAC Brands

At Gosal Heating & Air Conditioning, we're proud to be an authorized Carrier dealer, known for our expertise in high-quality installations and service. But our expertise doesn't stop there; we also install and service all major HVAC brands including Lennox, Trane, Goodman, Payne, Day & Night, as well as systems from Home Depot and Lowe's. Whether you’re looking for installation, maintenance, or repair, our skilled technicians are equipped to handle your needs across any of these top brands. We ensure each system is optimally set up and maintained for peak performance and longevity.

Request Quote

Ready to enhance the air conditioning in your Castro Valley home or business? Request a free quote today and discover how we can meet your cooling needs with professionalism and precision.

Don’t wait for comfort. Contact Gosal Heating & Air Conditioning now to schedule your air conditioning service in Castro Valley. Our team is ready to provide fast, effective solutions tailored just for you.

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