Get matched with top heating and air conditioning pros in Discovery Bay, CA

"Smart Heating and Air Conditioning was very responsive and came out when we really needed them. We were without heat as our old furnace no longer worked and our AC was on its last leg. Mike came out to give us a quote which was the best out of three that we had. He went over all options with us and now we are very satisfied to have a new and efficient heating and AC system. They lived up to their name as well, by upgrading my thermostat to a WiFi one that added that SMART touch to my system."

"Excellent service just had a new air conditioner installed with new ducting Rudy and team saved the day. Also serviced my old heater at no extra cost will definitely be calling them back to install my heater in December!"

"Very efficient. Thorough. Explained everything that was performed during my regular HVAC check up."

"Responsive service; on time; reasonable arrival window (meaning I didn't have to wait around for 4 hours!). Super nice technicians. Good solutions that make sense to the average homeowner. No up selling to things you really don't need. They just assess the problem and fix it. Right on time in the agreed upon window. Because I called early morning, they actually had a same day service appointment !!! This company has always delivered for me on my rental property and my personal property !! I like the reasonable price on 'small jobs' meaning less than $500. Some plumbing companies won't take small jobserved like that. The service fee to diagnose is extremely reasonable. And once they are there, you should just OK the work and be done with your plumbing problem !!"

"They showed up early, he had the part on his truck he replaced the device in HVAC unit and had me up and running in no time. He was very nice, very kind and very polite."

"Peter and his crew especially Jason did a fantastic work at my place in Blackhawk, CA. I was impressed with Pete's knowledge and honesty, had interviewed three other vendors prior. They install two HVAC units at my home and also provided awesome after sales service. I would recommend them highly to other. Thanks"

"Kolby was very professional, timely, extremely helpful, ! If you need help with HVAC issues, he's the one to call! He's fantastic!"

"Outstanding customer service. Checked everything out and insured all components working normally. If you are looking for a honest HVAC technician, this is the company to go with."

"Tony was knowledgeable and explained the step by step service to be performed and why it was important to a heating system for efficiency and general maintenance. I thought the price was not inexpensive. However, I chose Ramirex Duct Cleaning due to Tony's presentation. Tony and his 2 assistants were neat, efficient and careful. My 24 year old furnace blade system and 10 vents were cleaned as well as the dryer and vent system within 3 years. Tony took before and after pictures of each phase of the operation which was impressive."

"Jim's Air Systems had the best value for my dollar. They supplied me with better equipment than they quoted for the same price. They completed the entire installation in about five hours. They protected my floors with tarps and were very careful to protect my walls as they moved equipment in and out. Josh, the son of the original Jim, was on the job working with the other two installers. They performed above my expectations. They left my home and yard as clean as if they had never been there. The new furnace is wonderful and is already saving me money on my P.G. & E. bill. I would recommend Jim's Air Systems unconditionally to anyone in need of a new furnace and AC system. This is a family business that has been supplying and installing systems since 1976. They take personal pride in doing an excellent job. They did not sell me anything that I did not need and provided me with a much cleaner and easier-to-service installation than my existing system. They are the best!"