Get matched with top central a/c installers in Port-Costa, CA

"I called Smart Heating and Air Conditioning for a quote to replace my AC unit. Mike, came out and took his time with the inspection, and also took his time explaining to me everything that needed to be done. The pricing is competitive, but definitely worth the money. The whole install went perfect."

"Jaleen from Albert Nahmans is top notch , diagnosed the issue with an old furnace , fixed it and made recommendations for repairs and or replacement . A huge thank you!!"

"Peter did a great job installing two new furnaces at our house.  Install took a little longer than expected due to venting issues that were beyond his control.  Overall - he was in constant communication throughout the job and his crew was very professional.
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"Had another company come out and try to sell me a new A/C that I knew I didn't need. Hassler came out next day and fixed the problem in a matter of minutes. Thanks!"

"Juan and his team were top tier professional. From the initial consultation to the hvac installation, they handled everything with care. Juan was so thorough answering my questions, the install was done in time, and everything was to spec. When I contacted him with an issue after install, him and his business partner came to take care of things immediately. I wouldn’t hesitate to recommend them in a heartbeat. So grateful for the work they did with removing our furnace and installing a split unit heat pump. Thank you Juan!"

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.

"He was very easy to work with and was on-budget. He did a great job on the installation and he was great in coming and doing adjustments after the installation."

Established in 1989, North Bay Air Systems, Inc., prides itself on an outstanding record of quality service and attention to detail. With over 18 years experience in the industry, Ron will work hard to insure that your needs are met in a timely manner. \n\nThe quality of workmanship you will see with North Bay Air Systems will be beyond your expectations. We offer expert installation, maintenance and repair services by a team of highly skilled, professionals.\n\nWhatever your needs, either service, repair or installation call North Bay Air Systems today!\n

"Great job all around moving and replacing our heater, installing new ducting and adding AC. Michael was great helping us on the sales side, and Stuart and his crew (Juaquin, Derek, and Angel) worked hard to get our AC up and running right before a bad weekend heatwave. De Ann (sp?) was really helpful with coordinating schedules around our lives and everyone had clear and prompt communication. Definitely would use ABC again for other work."

"It went amazing! Diego assembled a crew of four incredibly hard working guys who came out two days later (Monday), and removed our old system and installed the new one (compressor, furnace, and coil) in a few hours. It was a life saver! The price was very reasonable (I'd previously replaced an AC and furnace at an old house, and paid a couple thousand more). He was on time, worked his butt off, and did great work. He also gave a five year guarantee on anything broken for labor, and the AC and furnace come with 10 years parts that he will coordinate. I will definitely call him again for anything!"