DMS AIR | Best HVAC Services in San Dimas, CA

DMS AIR handles complete HVAC installation or replacement for residential and commercial properties in San Dimas. As a licensed contractor with over 30 years of experience, we work on most makes and models, specializing in new construction projects. Our process includes energy cost analysis to help you choose efficient systems suited to our local climate, and we ensure proper installation for optimal performance and longevity.

We offer emergency support for HVAC system repairs and are typically available to answer your call promptly. As a family-owned business serving Southern California since 1993, we prioritize getting your heating or cooling back online quickly. Our experienced technicians can diagnose and repair most issues, including common problems like refrigerant leaks or capacitor failures, to restore comfort to your home.

For San Dimas residents experiencing refrigerant leaks or capacitor failures—common issues in our area—DMS AIR provides thorough diagnostics and repair services. Our technicians are trained to identify these problems efficiently and use quality parts for repairs. We also offer maintenance plans to help prevent such issues through routine inspections, which can extend your system's life and improve energy efficiency in our climate.