Get matched with top nest installation pros in Alamo, CA

"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."

"HVAC is directly related to health. They removed the old ducts and installed new ducts and a brand new HVAC system. They also installed a nest thermostat. They are extremely professional, came on time, finished in two days as they had promised., gave me plenty heads up on the arrival of technicians, start and stop, were very conscious of Covid protocols and did follow up. I bought their annual membership. They took great care of me and with the membership, I know I will be taken care of! I will use them for my other properties and give my highest recommendation! Thank you perfect star!"

"they were punctual and got the job done quickly."

"It went very well. They went above and beyond with their services.They also looked at our ceiling and had recommendations. We will definitely be using them again. Thank you for your good work"

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.

Hi, I’m Saul, owner of a local HVAC company serving homeowners across the Bay Area.\n\nWe specialize in AC installation, furnace replacement, ductwork, thermostats, and fast, reliable repairs. Whether your system stopped working, needs an upgrade, or you’re looking to improve efficiency, we provide clear options and honest recommendations.\n\n✔ Upfront, transparent pricing \n✔ Clean, professional installations \n✔ Fast response times \n✔ High-efficiency systems (including Gree R-32) \n✔ Help with rebates and energy savings \n\nOur goal is simple: do the job right the first time and make the process easy for you.\n\nIf you're having issues with your heating or cooling system, send a message and tell me what’s going on—I’ll help you figure out the best solution.\n\nAre you looking for a repair, replacement, or just an estimate?

One Hour Heating and Air Conditioning of Pleasant Hill is your local service provider. We pride ourselves on our attention to detail, punctuality, reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. Never worry about diagnostic fees keeping you from making the important decisions when it comes to health of your HVAC system. All fees are waived with any work performed. We look forward to earning your business. Give us a call today!

"They installed copper pipes for my water heater. They were recommended to me by a family member and I was not disappointed. They made sure to update me frequently and even gave me some input. They do great work ."

"Tenants were happy though all seven units were occupied during installation."

"In 2018 we hired Todd and his team to replace a multi-story wooden deck at the rear of our house, a very challenging project that ended up exceeding all of our expectations. We recently had a second child and needed to remodel the lower story of our split level house in Oakland in order to make the space more usable, and luckily we were able to hire Todd again during a break between other jobs. The project ended up being much bigger than we initially thought, but Todd was just as professional, honest and communicative as he had been during our previous project and provided updated cost estimates as we added more scope to the project. His two-man team of experienced carpenters, Forrest and Osman, were a pleasure to work with again and were on site every day to coordinate the small army of subcontractors (insulation, stucco, electricians, plumbers) who worked on the house. Forrest and Osman's craftsmanship is truly impressive and they always went the extra mile to accommodate our requests. Our new living space is a dream come true, and we're very happy that we had the opportunity to work with Todd again. I'd recommend T James Construction for any home improvement project."