Get matched with top thermostat installers and replacers in Dublin, CA

"Best company. The installed heat pump to replace my central heating and air conditioning. They service it annually. It works extremely well."

"Josh helped set up my AC unit . He is very professional and very detail-oriented with his installations. I will definitely call him up again when I need some home repairs/installations done. Very happy with his work!"

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers? needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Daniel did a fine job. Wow, what a Difference. Going from twenty year old Philips tubes TV - very heavy - to the high resolution HD Best Buy "Insignia" 32 inch TV. The old TV died two days ago. This was a big deal in my life, switching TVs. This all got done more simply than I imagined. Set up new TV with take away old TV."

Since 1999, Hassler Heating and Air Conditioning has helped East Bay homeowners stay comfortable with energy-efficient heating and cooling solutions built to last. We specialize in full system replacements, heat pumps, ductless mini-splits, and high-performance home upgrades designed to lower energy costs and improve year-round comfort.\n\nHomeowners choose Hassler for honest recommendations, expert system design, and clean, professional installations. Whether you need a fast repair or a complete system upgrade, our team focuses on long-term solutions—not quick fixes.\n\nServing Alameda, Contra Costa, and Marin counties, we’re committed to doing the job right the first time, with quality workmanship you can trust.\n\nCall today for expert service and a smarter, more efficient home.

Miller’s HVAC is Livermore’s trusted choice for reliable heating and air conditioning services. Our certified technicians provide expert installation, repair, and maintenance for furnaces, air conditioners, heat pumps, and duct systems. We’re dedicated to keeping your home or business comfortable year-round with honest pricing, quality workmanship, and exceptional customer service.\n\nWe proudly serve Livermore, Pleasanton, Dublin, and surrounding Tri-Valley areas. Whether you need an energy-efficient upgrade, seasonal tune-up, or emergency HVAC repair, Miller’s HVAC delivers fast, dependable results you can count on.\n\nServices include:\n• HVAC installation & repair\n• Furnace & A/C maintenance\n• Indoor air quality solutions\n• 24/7 emergency service\n\nCall Miller’s HVAC today for a free quote and experience the comfort you deserve!

At TRIO Heating, Air & Plumbing, our mission is clear: to provide top-tier heating and air conditioning services while focusing on exceptional customer experiences, employee happiness, and environmental responsibility. We are dedicated to delivering outstanding service that ensures our customers are satisfied and our team is motivated.

"Air Quality Heating & Air Conditioning replaced my 60 year old plus heating system in November 2020 with a new Carrier furnace, new Carrier air conditioning unit along with new ducts and vents. The owner Matt is a stand up guy, a straight shooter who can be trusted and one that also provided me with good options and literature for my project. In addition, Matt's crew did a fantastic job of completing my job on time with high quality and at a very fair price. The workmanship was outstanding, the workers cleaned up at the end of each day and were very courteous. I highly recommend Matt's company and crew for any of your HVAC needs as I am an extremely pleased customer."

"Got Watts installed a solar PV roof system and we are very happy with it. This is the second time that we have used Got Watts and both times, we could not have asked for a better experience. Jeremy's quote was lower than his competitors. He answered all my questions and was very flexible when asked to make changes in the design. System installation started less than 2 weeks after contract signing; Solar City quoted a 3-5 month wait. The install crew was very professional and completed the entire installation of 22 panels in 2 days. Shelby and Lindsay handled the PG&E and Concord City papwork and were very responsive to questions. We highly recommend Got Watts for general electrical and solar work."

"Did not acquire the automobile so the services were not needed. However, the company was very responsive with a comprehensive bid and an appropriate followup. I would give them the opportunity to bid again should the need arise again in future."