Cornerstone Heating & Air: Reliable HVAC Services Serving Riverside, CA 92503
3380 La Sierra Ave Ste 104, Riverside, CA 92503
Local Business Description
Cornerstone Heating & Air is a family-owned and operated HVAC company founded in Riverside in 2012 by Steve and Mark, who bring a combined 30+ years of licensed contracting experience to every job. Building on Steve's earlier venture, Steve’s A/C, their business is built on a foundation of skilled troubleshooting and high-quality installations for both residential and light commercial clients. As a full-service provider for repairs, new installs, and maintenance, they serve the Inland Empire, Orange County, and Los Angeles County with a commitment to building long-term relationships with their customers. You can trust their local expertise for reliable, durable solutions for your home's comfort.
Main Services
- HVAC system maintenance
- HVAC system repair
- HVAC installation or replacement
FAQs
As a Riverside homeowner, my energy bills are high. Could my HVAC system be the cause?
Yes, it's a common issue in our climate. An aging or inefficient system works much harder to cool your home, especially during our hot summers, leading to high energy consumption. Our technicians perform detailed evaluations of your system's efficiency, checking for issues like dirty coils, refrigerant levels, and overall performance. We can often recommend specific repairs or maintenance to improve efficiency, and if a replacement is the most cost-effective long-term solution, we provide high-quality installations designed for durability and lower operating costs.
What's included in your HVAC maintenance service?
Our comprehensive maintenance service is designed to keep your system running smoothly and efficiently. We perform a full inspection, clean essential components like coils and blower assemblies, check refrigerant levels and electrical connections, lubricate moving parts, and test system safety controls. For Riverside homes, we pay special attention to the condensate drain line to prevent the clogs that are common in our area. This proactive care helps prevent unexpected breakdowns, maintains efficiency to manage energy costs, and extends the lifespan of your equipment.
You mention high-quality installations. What does that process look like?
Our installation process begins with a thorough evaluation of your home's specific cooling and heating needs, including square footage, insulation, and ductwork. Steve and Mark, both licensed contractors, personally oversee the project, ensuring every step—from selecting the correctly sized, efficient unit to the precision installation itself—meets our standards. We focus on clean, secure connections, proper sealing, and system calibration. This meticulous approach, honed over 30+ years, results in a reliable installation that delivers optimal comfort, efficiency, and longevity for your Riverside home.
Business Location & Hours
| Mon: | 8:00 AM - 8:00 PM |
| Tue: | 8:00 AM - 8:00 PM |
| Wed: | 8:00 AM - 8:00 PM |
| Thu: | 8:00 AM - 8:00 PM |
| Fri: | 8:00 AM - 8:00 PM |
| Sat: | 8:00 AM - 9:00 PM |
| Sun: | 8:00 AM - 9:00 PM |












