Where is it?
721 E San Bernardino Rd, Covina, CA 91723
Sinclair Air Systems
When is it open?
Thursday: 9:00 am - 5:00 pm
From Google, checked May 2026. Page updated 8 October 2026.
- Mon9:00 am - 5:00 pm
- Tue9:00 am - 5:00 pm
- Wed9:00 am - 5:00 pm
- Thu9:00 am - 5:00 pm
- Fri9:00 am - 5:00 pm
- SatClosed
- SunClosed
How do I reach it?
Phone: (626) 331-4541
Website: sinclairair.com
What kind of work does it do?
Air Conditioning Contractor
Your best choice for HVAC Installation, Service & Repairs
What do Google reviewers say?
We recently had our entire HVAC system, including all the ducting, fully replaced by Sinclair Air Systems and could not be happier with the results. Our old system was nearly 20 years old, no longer working, and had become unserviceable. Sinclair Air Systems came in with the best proposal by far. Other companies were quoting almost twice as much and recommending work we didn't actually need. What really stood out was how they worked with us on inside our budget.
Sinclair Air Systems did an excellent job installing our new HVAC system. The pricing was fair and the quality of work was top-notch. Professional crew and great results. Would definitely use them again!
Had Sinclair Air Systems install a new HVAC system and couldn't be happier. Fair pricing with no surprises, and the quality of work was outstanding. Professional team, clean installation, and the system works perfectly. Highly recommend!
These quotes come from Google Reviews and belong to their authors. They can be out of date. Ask for a correction or removal.