Get matched with top central a/c service or repairers in Castro Valley, CA

Hao Wu is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

At Chill Heating and Cooling, we provide expert HVAC services tailored to your needs. From efficient installations to dependable repairs and maintenance, our skilled team ensures your indoor comfort all year round. With a commitment to quality and customer satisfaction, we deliver innovative solutions that enhance efficiency and save you money. Trust us to keep your home or business comfortable—your comfort is our mission!

With over 30 years of experience, Perfect Star Heating, Cooling, & Electrical is a locally owned and operated family business serving Alameda & Contra Costa County. We service all makes and models, offering top-quality comfort and energy efficiency solutions. Specializing in Furnace/Heating, Air Conditioning, and Ductless Mini-Split installation, we also provide repair and maintenance for Central HVAC systems, Ductwork, Indoor Air Quality, Electrical Repair & Installation, and Solar Installation. Free estimates are available for HVAC system replacement, new installations, and solar solutions. As a Lennox Premier Dealer, Daikin Comfort Pro, and WellAir Elite dealer, we are Diamond Certified, hold an A+ BBB Rating, and have been voted “The Best Heating & Air Company” and “The Most Community-Minded Company” by The Press in Brentwood, CA for two years. We are also SFGATE’s Best of the Bay Area Heating & A/C Service provider.

Eagle Air has been in business since 1993 and is a recognized authority in HVAC design, installation, repair, maintenance, and replacement of residential and commercial heating and air conditioning systems. Eagle Air offers equipment and certified professional service.

Smart Heating and Air is proud to be a locally owned and operated business that provides residential HVAC installation, replacement and service. With years of experience and unmatched expertise, we can help with any and all of your heating and cooling needs. Since opening our doors we have built our business on providing customers with the highest quality products and service at a fair price. You can count on us to be timely, tidy and when the job is done, that you will be 100% satisfied with the work. Let us show you the Smart Heating and Air advantage, get in touch today!

Pacific Coast Home Services, family owned and operated is a client centered company, serving the greater Bay area community. Want one good reason to hire us for your HVAC needs? We'll give you 6: Proven Expertise – With decades of hands-on experience, our HVAC technicians bring knowledge, skill, and precision to every job. Reliable Service – From urgent repairs to seasonal tune-ups, we’re committed to showing up on time and doing the job right the first time. Energy Efficiency Focus – We don’t just fix systems—we optimize them, helping you lower energy costs and extend the life of your equipment. Customized Solutions – Every home and business is unique. We design heating and cooling solutions that fit your needs, comfort, and budget. Trusted Local Professionals – We’ve built our reputation on honesty, transparency, and long-term relationships with our clients. At the heart of what we do is simple: keeping your home comfortable, safe, and energy-efficient—season after season.

AireServ of Pleasanton is a locally/owner run and operated company. We service all of East Bay Area. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. AireServ has been around for over 20-years with over 250 locations.

Air Sharks LLC provides a wide range of HVAC services for residential clients throughout the South Bay. In addition to installing, repairing, and maintaining heating and air conditioning systems made by industry leaders like Daikin and Lennox, the company offers various services that are designed to improve indoor air quality, including ductwork inspection and cleaning. Owner Khaled Alsaka credits much of Air Sharks’ success to its passion for transforming the HVAC process with insightful education, collaborative solutions and top-tier products. “As a pioneering force in the industry, we leverage our extensive expertise to provide our customers with seamless guidance,” he says. “Our dedication to excellence motivates us to continuously exceed expectations, ensuring every interaction reflects our unwavering commitment to delivering five-star service.” Air Sharks offers personalized consultations so it can provide each job with tailored heating and cooling solutions, which Mr. Alsaka says is important for ensuring positive results. “We take great pride in our craftsmanship and attention to detail. Every phase of our process allows us to showcase our expertise, resulting in highly satisfied customers who are eager to share their experience with others.

AirGonomics Heating & Cooling provides Honest, Reliable HVAC services for your Home or Business. Whether you require equipment maintenance, replacement or an emergency repair, we are available to serve all of HVAC your needs. Your satisfaction matters. AirGonomics strives for 100% customer satisfaction. Give AirGonomics a call today. We will do our best to exceed your expectations.

Dukes Heating & Air Conditioning is in HVAC business for 37 years now and continuously remains on the top of the industry. We do this by providing honesty and good workmanship that our customers love the most. We- Dukes Heating & Air Conditioning , also make sure that we have the latest technology that enables us to be more competitive & expert in the field and stand behind any work we have performed. Our in-house employees are all professionally trained and deliver only excellence to whatever project they work on.