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

"Replaced 38 year old gas furnace, duct work and installed new smart thermostat. Anthony was very helpful and explained everything clearly. The 3 technicians did the work in 8 hours and cleaned up everything carefully. Anthony also cleaned my insert fireplace pilot light and helped me start the pilot light as a bonus! Highly recommend Perfect Star."

"Josh did a great job on my roofing repair! He showed up when he said he would, and the roof looks great! He also installed some replacement skylights and siding. He sent many pics of the job as I wasn’t able to be there when the work was performed. I will definitely use him again."

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.

"My HVAC unit was 20 years old needed consistent repair, and my ducks where leaking. It was time for a new unit. I also wanted to relocate the condenser to improve my back yard space. I had gotten 4 quotes before someone referred me to http://www.aircmechanical.com/ Vitor was literally the first smart person to offer a quote. He suggested relocating the condenser to a side of the house and changing it to a suitcase type unit. He also came up with the creative solution of adding a 2nt inlet in another part of the house to reduce noise and improve airflow. The other contractors wanted to enlarge and or relocate the existing inlet which would have been an ugly mess. I now have an extremely efficient 2 stage unit installed correctly and he beat the other quotes. Entire product was completed in 2 days. I couldnâ t be happier."

"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.

"Matt and his crew did an excellent job with our new Carrier heat pump and Nest thermostat. All aspects of the project from the initial review, the quote, the installation and the followup were timely and professional. I would definitely work with Air Quality again. Five Stars."

"Excellent company - Professional and Competent through all stages of my electrical upgrade, solar system design, solar system installation, and instrumentation start-up of the solar system. Always in communication and a very well-organized company. Mallory, Sam, and Lindsay worked as a team coordinating my project from inception through completion, along with integrating their activities and logistics with my roofer. The two trades worked seamlessly through the whole project. The onsite tradesmen Danny, Brian, Josh (and many more) were professional, communicated with me daily on the project status, and even got positive comments from our City Inspector. Those comment made me feel confident that their work was performed with attention to detail and high quality. And it's comforting that Jeremy the president personally made a point to assure I was happy with the work and understood the installation of the solar system and the operation of the solar system instruments. Since the system was released to me, I've had zero issues with the trade work they did, the electrical or mechanical systems or components, or the solar system instrumentation. This is an excellent company."