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Carrier Factory Authorized Dealer

San Gabriel Valley's Best Value in Heating, Air Conditioning & Plumbing

Serving Glendora, Covina, San Dimas, Azusa, La Verne & the Surrounding Area Since 1985

Commercial HVAC Services

We understand how important it is for a business to achieve and maintain an optimal indoor environment for their day to day operations. That's why we always go above and beyond for our commercial clients. No matter the size of your business, we will do whatever it takes to respond quickly and get the job done.

Commercial Air Conditioning & Heating Services Glendora


  • Carrier Factory Authorized Dealer
  • Trusted by General Contractors, Businesses & Restaurants Since 1985
  • Fast, Efficient Service, Reliable Repairs
  • Factory-Trained, NATE-Certified Technicians
  • Flexible Scheduling & Cost-Saving Maintenance Agreements
  • Excellent Reputation for Quality Work

High Quality, Competitive Priced Air Conditioning & Heating Services for Glendora, Covina, San Dimas, Azusa, La Verne, and Surrounding Areas

R.D. Smith Heating & Air Conditioning is an award-winning Carrier® Factory Authorized Dealer. We have more than three decades of HVAC experience and have sold and installed air conditioning systems for thousands of commercial and residential properties in and around the San Gabriel Valley. R.D. Smith Heating & Air Conditioning is trusted by general contractors throughout Glendora, Covina, San Dimas, Azusa, La Verne, and surrounding areas to complete HVAC installation from the ground up. With our team of NATE-certified, highly trained and experienced technicians, we are qualified to sell, install, and replace Carrier's impressive line of commercial air conditioners and furnaces, as well as offer expert repair and maintenance services for most major brands of light commercial HVAC systems.

Carrier Factory Authorized Dealer Specializing in Commercial Heating & Air Conditioning Sales, Installation, Replacement & Retrofitting

Carrier Factory Authorized Dealer

As a Carrier Factory Authorized Dealer with thousands of satisfied clients, an excellent online reputation, and years of experience, R.D. Smith Heating & Air Conditioning is one of the San Gabriel Valley's premier commercial heating and air conditioning companies. We give your business access to Carrier's complete line of energy efficient, high-performing and long-lasting packaged rooftop units, packaged indoor units, mini-split ductless systems, thermostats/controls, air purifiers, ventilators, dehumidifiers, and humidifiers. By offering such a diverse range of options, we are able to accommodate most HVAC needs and budgets. All of our Carrier HVAC system installations are performed by our factory-trained technicians, who have installed, serviced, and maintained thousands of heating and air conditioning systems. With our level of expertise, we are confident that you'll be happy with the quality of our service and stand behind every Carrier installation and replacement with a 100% satisfaction guarantee for one full year.

Commercial HVAC Service & Repair In & Near Glendora, Covina, San Dimas, Azusa & La Verne, CA

Commercial HVAC Repair & Services San Dimas, CA

R.D. Smith Heating & Air Conditioning is readily available to provide expert Carrier Factory Authorized service and repair to commercial clients in and near the San Gabriel Valley area. Our fast, reliable, and competitively priced heating and air conditioning repairs are available for all major brands of commercial HVAC systems, including Bryant, Carrier, Trane, York, Rheem, Amana, Goodman, Day & Night, Coleman, Lennox, American Standard, and Lux. With every heating and air conditioning service visit, we use state-of-the-art diagnostic tools, apply the industry's leading diagnostic and repair techniques, and give our clients the option of OEM, factory-authorized parts or high-quality aftermarket parts. Additionally, we have Carrier factory trained, NATE certified HVAC technicians with years of experience diagnosing problems and coming up with cost-effective solutions to meet the needs of our diverse client base.

Commercial HVAC Maintenance Program for Businesses of All Sizes & Every Industry

For businesses in Glendora, Covina, San Dimas, Azusa, La Verne, and surrounding San Gabriel Valley cities, R.D. Smith Heating & Air Conditioning offers affordable HVAC Maintenance Plans to keep commercial air conditioners and furnaces running reliably, cleanly, and efficiently, year after year. Our maintenance plans include seasonal tune-ups, multi-point safety checks, and filter replacements. Maintenance members enjoy priority service, repair discounts, and other benefits. Call today to learn more.

R.D. Smith Heating & Air Conditioning's
Customer Reviews

Can't say enough good things about RD Smith Heating & Air. I had a complete "tune up" of my AC last summer right before a heat wave, so when my house fan suddenly stopped working on a Saturday evening during the most recent heat wave, I was very bummed, and not hopeful for a quick response or fix. The first national company I called quoted an INSANE price to potentially repair, and also said they likely couldn't the parts for weeks. Instead, by going with RD Smith, I got a get price, and a working AC by Monday evening. Very professional, very prompt, great responsiveness, even on Mother's Day week, and great value. Would highly recommend.

Mike Cioffi Via Google Reviews

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