About us

Reliable Comfort for Your Bay Area Home Backed by Real Accountability

Ozone Service is a trusted San Jose HVAC and electrical company. We install energy-efficient heat pumps, fix AC systems, upgrade electrical panels, and help you maximize your rebates – all with our own licensed in-house crew.

Yelp Rating

5.0

Google Rating

5.0

Thumbtuck Rating

5.0

Licensed & Insured

24/7 Service

EPA Certified

BBB Accredited

The Air You Breathe. The Power You  Rely On. Done Right.

Ozone isn’t just our name – it represents what we do. Like the ozone layer that shields the planet, we protect your home and family with reliable HVAC and electrical services. We do the job right the first time and stand behind our work with a strong warranty. It’s the standard we hold ourselves to on every job in the Bay Area.

Licensed, Certified  & Accredited

Every credential listed here is verifiable. License number, accreditation body, certification agency – all public record.

Rebates

$350,000+

Secured for Bay Area homeowners through local and state rebate programs over the last 6 months

Inspections

100% Pass Rate

On all City Inspections  in the Bay Area

Team

Zero Sub- contractors

HVAC & Electrical handled 100% in-house

Reputation

5 Stars

Top-rated expertise  on Google, Yelp  and Thumbtack

Our Team in the Field

Alexander Dorofeev

Founder & CEO

“Welcome to Ozone Service. We built this company with a simple goal: to give Bay Area homeowners an HVAC and electrical team they can genuinely rely on – people who show up on time, explain what needs to be done, and back every job with a real warranty. Our mission is to make your home more comfortable, more energy-efficient, and better prepared for the future – one project at a time.”

Alexander Dorofeev

What We Stand For

Transparency

The price you're quoted is the price you pay. We assess the full system and hand you a written scope before any work begins.

Accountability

both licenses, one roof. When HVAC and electrical are handled by the same team, there's no ambiguity about who's responsible.

Expertise

EPA 608 certified, CSLB licensed, 100% city inspection pass rate. Credentials that are verifiable, not just claimed.

Authorized Dealer & Installer

What Our Customers Say

      EXCELLENT  
   Based on 85 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Md. Abul Bashar Shanto 
 
 
 
 Trustindex verifies that the original source of the review is Google. Got a full heat pump system installed last month and honestly couldn't be happier with how the whole process went. From the first visit to final inspection, the team was organized and clearly knew what they were doing. What I didn't expect was how much help they gave me with the rebate programs - I had no idea how much money was available until Konstantin walked me through everything. They handled all the paperwork on their end, and my out-of-pocket ended up being significantly less than the initial quote. The system has been running quietly and efficiently since day one. Highly recommend to anyone in San Jose thinking about making the switch.
  
 
      Posted on Google  
   
   faiqah firzanah 
 
 
 
 Trustindex verifies that the original source of the review is Google. AC stopped working on a Friday afternoon. Called Ozone, they came out the same day, found the issue fast, and had everything running before dinner. No drama, fair price. Thanks guys.
  
 
      Posted on Google  
   
   Amit M 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very efficient, on-time and fair priced. Thank you.
  
 
      Posted on Google  
   
   A L 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had a great meeting with Konstantin who explained "AC + furnace"  vs heat pump, options, decision points. He presented impartially many technical and practical details and considerations that I find critical in making the right choices. Update: The heat pump installation was completed on time with no hiccups. Aleksander, the lead installer, was great in both the technical side but also explaining to me some very important details of the job and the future use. Definitely recommend them!
  
 
      Posted on Google  
   
   Mark Bernal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful in diagnostics check. I will follow up with this company if I need anything else.
  
 
      Posted on Google  
   
   Nam Nguyen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Technician was careful and throughout
  
 
      Posted on Google  
   
   Nanping Jiang 
 
 
 
 Trustindex verifies that the original source of the review is Google. We needed a completely new HVAC system installed, and we had a great experience working with this team. I’ll admit I’m pretty picky and detail-oriented when it comes to work being done on our house, especially during a major renovation, so I don’t give praise lightly. That’s part of why I wanted to write this review. Konstantine took the time to explain the product options and installation process very clearly, which made us feel confident from the beginning. He was always responsive and easy to reach — whenever we had questions or concerns, he picked up the phone, understood our situation, and worked hard with us to solve problems in a thoughtful and kind way. That level of care meant a lot to us. Since we’re doing a full house renovation, we later needed to relocate some HVAC vents and return locations that had already been installed. Even though this meant coming back to our house multiple times, they were incredibly kind and accommodating about making those changes for us. Special thanks to Alex for going above and beyond — we really appreciated his patience and help, especially since they had to come back more than three times for us. The whole team was professional, responsive, and genuinely cared about doing the job right. Even as someone who is pretty particular, I was very pleased with their work and highly recommend them to anyone looking for HVAC service.
  
 
      Posted on Google  
   
   Alex Pérez 
 
 
 
 Trustindex verifies that the original source of the review is Google. Truly outstanding service and HVAC system. Konstantin and his group are extremely competent professionals who are very fairly priced and honest in their dealings. We were extremely impressed by how knowledgeable, polite, and hardworking the Ozone folks are. It’s an amazing business and I will use them for all HVAC needs. I recommend them enthusiastically.
  
 
  
  
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more