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Diamond Air Services

5.0 265 reviews
Overall rating
5.0
out of 5
265 reviews
5 star 98%
4 star 1%
3 star 1%
2 star 0%
1 star 0%

About Diamond Air Services

Diamond Air Services, a family-focused company founded in 2013, has over 20 years of combined experience in providing residential and commercial HVAC services. The company's technicians are known for their professionalism, efficiency, and attention to detail, offering repair, maintenance, and installation services for a wide range of HVAC brands at affordable prices. With a focus on air quality and a commitment to meeting clients' needs, Diamond Air Services has built a loyal customer base and is highly recommended for its HVAC services. Recent reviews highlight the excellent customer service provided by the team, including Tiffany, Jose, Will, and Howie, who have been praised for their punctuality, thorough explanations, and seamless operations. Customers have expressed satisfaction with the technicians' work, including air duct cleaning, HVAC system installation, and maintenance, and have recommended the company's services to others. Customers also appreciate Howie’s quick response to urgent AC issues, noting his professionalism and reasonable prices. The company is trusted for handling multiple AC units, with clients opting for their semi-annual maintenance plan, reflecting confidence in the team's reliability and quality of work.

Oct 2026
5.0
We had a new residential HVAC system installation. We are 100% satisfied with Diamond air job. Jose crew is very responsive and taking care of the whole job. The system is installed properly. We have a cool environment right now. Strongly recommend residential houses.
Oct 2026
5.0
Howie is the best ever. He responded quickly to our cry for help after our AC system broke down on a day where the temperature was over 100 degrees. He arrived early the next morning on time which saved us from experiencing yet another day of heat. He was thorough in his examination of our unit and quickly fixed the problem. We did not have to listen to some upsell baloney about how our system is old (which it is at over 20 years old). What we received was solid honest repair work…which in this industry is rare. You will not find a better or more honest technician than Howie…He is an absolute keeper
Sep 2026
5.0
Had Diamond Air install my new AC unit today on the roof of my tri-level condo. I'm really happy with how everything turned out. I dealt mostly with Anthony and he was great to work with from the beginning- very helpful, straightforward, and easy to deal with. The installation crew did a great job, everything went smoothly, and the new system is working beautifully.
The pricing was fair, and overall I had a really great experience and would definitely recommend Diamond Air!
Photos of Diamond Air Services, 1630 East Francis Street Ste c,  Ontario
All 39 photos

Hours

Monday 7AM - 6PM
Tuesday 7AM - 6PM
Wednesday 7AM - 6PM
Thursday 7AM - 6PM
Friday 7AM - 5PM
Saturday 8AM - 3PM
Sunday Closed

Good to know

  •  online estimates 
  • on-site services
  • accepts credit cards
  • offers military discount
  • verified license

Location

1630 East Francis Street Ste c, Ontario, CA 91761

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Diamond Air Services · 1630 East Francis Street Ste c, Ontario, CA 91761

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