Diamond HVAC

About the business:

At Diamond HVAC in San Jose, we specialize in delivering exceptional HVAC services. Our expertise lies in handling a wide range of HVAC contractor tasks with precision and professionalism. From routine maintenance to complex system installations, we're committed to ensuring your home's comfort all year round.

Beyond HVAC repairs and replacements, our team at Diamond HVAC is dedicated to educating clients about energy-efficient solutions that can help reduce costs. We pride ourselves on providing personalized service tailored to meet the unique needs of each household we serve. With a 5.0/5 customer rating based on 8 reviews, you can trust us for reliable, high-quality HVAC services in San Jose. Choose Diamond HVAC and experience the difference today!

Hvac Contractor

In a heating or cooling crisis, turn to us, Diamond HVAC in San Jose. We provide prompt, professional HVAC solutions …
Book from $50

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Hours of operation

Mon – Fri
Sat – Sun

8:00 AM – 5:00 PM
Closed

Latest reviews

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Jeffrey Rotsko
23 May 2026
5
The air conditioning decide not to operate on a holiday and one of the hottest days of the year so far. It was the afternoon when we called Diamond HVAC. Georgi added one more service call to his already busy day to make sure that an older couple in their upper 80s would be comfortable enough to sleep that night.
Great service, great attitude, very talented and conscientious.
Diamond HVAC is now our “go to” for service and a new HVAC system.
A S
23 May 2026
5
This company did a great job! I needed to install an air conditioner and the guys did it quickly and efficiently. I am very happy, thank you!
Stanislav Gonchar
23 May 2026
5
Very professional from start! I needed to fix the AC unit at my old house and I got a few quotes from different companies, but these guys are cheaper; but it doesn’t affect the quality! Got the quote over the phone, scheduled an estimate and let me tell you the guy who came in was really professional and knew what he was doing. Gave me the best price and fixed it in no time. Would definitely recommend you guys in the future!
Thank you!