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

"Keon did an efficient, and professional job, assessing our wiring problem in the home with clear recommendations We have had very consistently good service from perfect star"

"Angi, I did this already. Why am I getting multiple requests to complete the same review?"

"Yes withholding until certainty it's fix"

"Excellent work he replaced my front entry door "

"Gilberto was professional and quick to schedule and fix door. He arrived on time, was an excellent communicator, and fixed the external door that wouldn’t close. Would definitely recommend and will hire for future projects! Thank you, Gilberto!!"

"Excellent. Daniel was very professional, knowledgeable, skilled and polite. I will absolutely hire him again and refer him as well."

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.

"Timely, tidy, willing to cooperate, happy with the result. Very happy!"

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.

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."