Get matched with top heat pump installers and replacers in Union City, CA

"I recently had a new HVAC system installed by Aireserv, and I couldn't be more pleased with the results. From the beginning, the team was professional, courteous, and informative. They arrived on time and were very thorough in explaining the detailed installation plan, the features of the new system, and how to operate it. The installation went smoothly, and the technicians cleaned the area while working. Once the system was installed, they ran tests to ensure everything was working perfectly and took the time to answer all of my questions. The new HVAC system has been a game-changer in terms of performance. It heats and cools my home more efficiently than my previous unit, and I've noticed a significant improvement in comfort and air quality. The system runs quietly and maintains an even temperature throughout my home. I also appreciate the energy savings I'm already seeing. My energy bills have been noticeably lower, which I can directly attribute to the new system's efficiency. Overall, I'm delighted with the service from Aireserv and the performance of the HVAC system. I highly recommend them to anyone in need of HVAC installation or upgrades. They provided excellent service from start to finish! A BIG THANK YOU TO ALTON THOMPSON AND HIS TEAM FROM AIRESERV."

"Great. They contacted me right away. It wasn't an emergency but Iti was cold, so they still came first thing on the first business day. The technician explained what he was doing and why the prior repair done by somebody else probably failed. The rate was reasonable. It's been a couple of days and it seems the furnace is working, so everything good so far."

"It was a scam. The price was too good to be true. My AC was not working and all I needed was someone to take a look and see what needs to be fixed. The cost quoted was $59. I even scheduled the appt. But once I called them for something, they said the appt process through Angie's list does not work and the $59 is only for changing the filter or something silly like that and I had to upgrade to the $89. But for the $89, the guy did spend time with me explaining what is wrong and if its worth fixing or not. So, why advertise as $59 with bunch of details that you won't even perform?"

"My wife and I bought a house a couple years ago, and became owners of a radiant heating systems installed more than 20 years ago. Tony and Damian did a great job of understanding how my radiant heating system works, what repairs were needed/what was failing, and where upgrades were needed. They replaced the pump, both expansion tanks, and the neutralizer. Additionally, they noticed the hot water tank was installed incorrectly, and the hot and cold water connections were flipped. It's amazing the system worked, and it's nice to have a system that's correctly installed (even if it's 20 years later!). Additionally, they secured the expansion tanks to the wall (now required by code), replaced the deteriorating copper pipes connected to the neutralizer with plastic (I'm sure this is code now as well), and re-routed the overflow pipes to the outside (rather than the floor!). You can't go wrong with these guys, well done, they're true craftsmen to the trade."

"These people were real pros. My heating boiler failed - it was only 48 years old!!! They installed a completely new system and lent my tenants heaters while the boiler was on order. They were very good at getting back to me and excellent at explaining the work they would be doing."

"Air Sharks LLC recently replaced our residential Natural Gas NG HVAC (otherwise known as Furnace / Air Conditioner) with an electrical Heat Pump HVAC HPHVAC. I MUST COMMEND THIS COMPANY IN MANY WAYS: (1) outstanding installation workmanship & craftsmanship, (2) excellence in Building Permit application & follow-through, (3) excellent follow-through with respect to Rebates from application through all administration steps, and (4) excellence in application and follow through with various agency regulations. Air Sharks Administrative Staff has built a company that covers ALL aspects of large Home Projects. I strongly recommend them!"

"I appreciated Kesar's responsiveness and ability to replace old furnace timely. My heater went out on 12/31 and a new one was installed on 1/2. He and the installer did a great job. Would hire them again."

NUR HVAC, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

Giant HVAC is a locally owned and operated heating and air conditioning company based in Fremont, CA, proudly serving the Bay Area. With over 20 years of hands on experience, we specialize in HVAC system replacements, air conditioning installations, furnace upgrades, ductwork, and zoning systems.\n\nWe focus on doing things the right way with clean installations, properly designed systems, and honest recommendations tailored to your home and budget. No pressure and no shortcuts.\n\nWe are licensed, bonded, and insured, and we handle everything from start to finish including permits, HERS testing, and final inspections.\n\nWhether you are upgrading to a high efficiency system, adding air conditioning, or looking for better comfort throughout your home, we take pride in delivering reliable and long term solutions.\n\nGiant HVAC built on comfort, honesty, and quality workmanship.

"Heating Technician, Charles was professional, friendly, and supportive in diagnosing the issue with our tankless water heater. He shared and explained the parts that need to be replaced. Parts ordered, and awaiting their installment soon."