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!

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.

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.

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.

Looking for reliable Heating & A/C services in the BAY Area and surrounding counties? Look no further than Aire Serv of Campbell & Saratoga. Our team of experts is here to assist you with all your heating and A/C needs. With our exceptional service and attention to detail, we are dedicated to providing the best solutions for all your needs. Contact us today!

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.

Since 1962, we have been committed to living up to our company slogan every day – The Home of Old Fashioned Service. That means reliability, expert advice, quality work and great service for our customers – and a 100% guarantee. Our entire team can’t wait to show you the difference great service can make for your heating, cooling, electrical, solar and above all, “comfort” needs. We sub-contract with licensed plumbers when necessary. $100 off the installation of a new furnace or air conditioner. Cannot be combined with other offers.

We have 11 years experience and specialize in all phases of heating and cooling services, installs, repairs, maintenance, and more. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! We specialize in repairs on heating and cooling systems Maintenance Full system replacements Heat pumps Water heaters

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!