Best Heating & Air Conditioning / HVAC In Milpitas

“Unbelievably quick. Labor day weekend, and the AC went out. Sal showed up 30min after I called and got it back working again in less than a hour. Reasonable rates too. Would absolutely use these guys again.“

“Excellent service from Stephan Reich. He was professional, knowledgeable, and diagnosed the issue within 15–20 minutes.

The $200 consultation fee is on the higher side, but it was absolutely worth it. I’d rather pay more for a skilled technician than deal with guesswork or wrong fixes. The issue was a simple air filter problem, and Stephan clearly explained system operation, maintenance, and how often filters should be changed.

They’re based in Milpitas and service Dublin as well—glad I found them. Plus, Stephan is easy to talk to and very approachable. Highly recommend.“

“My experience with Upgrade Home Services was excellent from start to finish. The team was professional, reliable, and very knowledgeable. They clearly explained the home improvement process, completed the work on time, and delivered high-quality results. Communication was smooth throughout, the work area was kept clean, and the final outcome exceeded my expectations. I highly recommend Upgrade Home Services for dependable and professional home improvement services.“

“Global heating and cooling service just helped replace my 17 years old AC and furnace system with a brand new hybrid system, their work is always reliable and will not stop until finding the best configurations for the customer. I am so happy with my brand new hybrid system and google home nest thermostats !“

“The technician came and diagnosed the A/C proplem quickly and took time to explain. Very pleased with the fast service performed by Victor.“

“A-Plus replaced our 25 year old furnace and A/C unit with a new more efficient Lennox unit. They also replaced our ductwork as certain rooms in our house weren’t getting sufficient air flow. They were very knowledgeable and sized our system accordingly. They also resized the intake to improve the flow. The cost of unit and installation was very reasonable compared to a 3rd party through Home Depot. Almost 2/3 the cost!! Hopefully, this new system will last us another 25 years. A+“

“After my heat was out for two days and it was freezing, they showed up on a very cold Sunday to fix my entire heat pump system and thankfully were able to fix it. I so appreciate their help.“