Air Conditioning Services
Serving Ontario and the surrounding areas
Contact Us
We understand how important it is to have a fully functioning air conditioner during the summer—At DS HVAC LLC - DEMO, your comfort is our top priority.
Our experienced technicians are committed to:
- Honest recommendations
- High-quality workmanship
- Fast, reliable service
We don’t just fix AC systems—we make sure your home stays comfortable and your air stays clean.
Air Conditioning Repairs
When your AC stops working or isn’t cooling properly, you need fast help you can trust.
At DS HVAC LLC - DEMO, we:
- Diagnose issues quickly and accurately
- Repair all makes and models
- Offer 24/7 emergency AC repair services
Don’t wait in the heat—call us and we’ll get your system back up and running fast.
New AC System Installations
If it’s time to replace your air conditioner, choosing the right system—and the right contractor—matters.
Our team provides:
- Expert AC system recommendations
- Professional, code-compliant installations
- A smooth, stress-free process from start to finish
We’ll walk you through how to properly use and maintain your new system, and we don’t leave until you’re 100% satisfied.
AC Maintenance and Prevention
Your AC system works hard during the summer. Without proper maintenance, it can lose efficiency or break down when you need it most.
Our maintenance service includes:
- Cleaning coils and components
- Replacing or cleaning filters
- Inspecting for potential issues
Improving system performance and lifespan
Routine maintenance helps prevent costly repairs and keeps your system running at peak efficiency.
Contact Us
Areas We Serve
ONTARIO
CHINO
RANCHO CUCAMONGA
CORONA
AND MORE!
COPYRIGHT © 2023
ALL RIGHTS RESERVED. // PRIVACY POLICY // TERMS AND CONDITIONS
(909) 206-0674
LOCATION
DS HVAC LLC - DEMO
1138 W Ralston St
Ontario, CA 91762
Main Office: (909) 206-0674