Get matched with top thermostat installers and replacers in Clayton, 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."

"I'm a Property Manager with over 150+ properties. Peter was great working with the owners and my tenants. He is installing a new heating/ac system and has repaired several other A/C systems at my rental properties. I would highly recommend him."

"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.

R Maintenance\n\nAbout Us At R Maintenance , we pride ourselves on delivering top-notch home repair and maintenance services.\n\nOur Services\n\nPlumbing\nElectrical Work\nCarpentry\nPainting\nGeneral Repairs\nWhy Choose Us?\n\nExperienced and Skilled: Our team has the expertise to tackle any job, big or small.\nReliable and Trustworthy: We show up on time and complete the job to your satisfaction.\nAffordable Pricing: We offer competitive rates and free estimates.\nCustomer Satisfaction: Our work is guaranteed, and we have numerous positive reviews from happy clients.\nContact Us\n\nPhone: (925) 956-3017\nEmail: aaronrivassr@rivasmaintenance.com\nWebsite: www.rivasmaintenance.com

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.

"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."

"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."

"Easy to work with. On-time pickup and delivery. Good communication."

"Very well.  Fast and easy service.  Technician was very professional and competent.  No drama.  Came on time. Installed Fan.  Paid and thanked him and he left.  Fan works great. <br />"