Preventative Maintenance

Schedule a Seasonal Heating and Air Conditioning System Tune-Up

McLay Services provides high-quality, affordable preventative maintenance services to help prevent minor problems from becoming big ones and ensure optimal performance of your heating and cooling system.

Our team of NATE-certified, experienced HVAC technicians are highly trained in the industry’s best practices and skilled at maintaining a full range of HVAC equipment, from decades-old gas furnaces to state-of-the-art air conditioners and heat pumps featuring the latest advanced technology. We provide seasonal tune-ups that help our customers stay on top of their maintenance needs for maximum benefit.

The Benefits of Preventative Maintenance

Regular heating and air conditioning maintenance helps to:

  • Reduce utility bills
  • Reduce repairs
  • Protect your investment
  • Provide a more comfortable indoor environment
  • Provide longer-lasting equipment

To prepare your HVAC equipment for the high demands of summer and winter, we recommend scheduling furnace tune-ups in the fall and air conditioner tune-ups in the spring.

Seasonal Air Conditioning and Heating Tune-ups

Call McLay today to learn more about our preventative maintenance services or schedule an air conditioner or furnace tune-up in La Verne, Glendora, Rancho Cucamonga, Claremont, Upland, San Dimas, or another nearby city in the San Gabriel Valley and the Inland Empire. Our tune-up services are always performed by one of our highly qualified HVAC technicians and include a thorough multi-point inspection (detailed below). We provide preventative maintenance services for all major HVAC brands, including but not limited to Carrier, Bryant, York, Fujitsu, Trane, American Standard, Lennox, Goodman, Amana, Rheem, and Daikin.

What We Do During a Heating or Air Conditioning Performance Tune-Up

Performance Furnace Tune-Up

  • Check burner assembly
  • Clean ignition assembly
  • Check flame sensor
  • Clean blower motor
  • Replace air filter
  • Lubricate moving parts as required
  • Test safety controls
  • Tighten electrical connections
  • Check thermostat
  • Check flue draft
  • Check combustion
  • Inspect vent piping
  • Test operation

Performance Air Conditioner Tune-Up

  • Clean condenser coil
  • Inspect evaporator coil if accessible
  • Clean blower motor
  • Replace air filter
  • Lubricate moving parts as required
  • Inspect for refrigerant leaks
  • Test condensate pump
  • Tighten electrical connections
  • Test starting capabilities
  • Measure air temperature differential
  • Check refrigerant pressure
  • Measure amperage and voltage
  • Test capacitors

Customer Reviews

Google Reviews

McLay Services, Inc.

5 Star Ratings on Google
4.8 Stars - Based on 68 Reviews
Yelp Testimonials

McLay Services, Inc.

4/5 Star Ratings on Yelp
4.5 Stars - Based on 112 Reviews
Angi’s Reviews

McLay Services, Inc.

4/5 Star Ratings on Angi
4.8 Stars - Based on 265 Reviews



First time using McLay and they did not disappoint. They had great reviews so I figured I could not go wrong. I called Maclay services due to water in smoke alarm. They came out the very same day and arrived as scheduled. Miguel was able to diagnose and repair my AC unit in a timely manner as well as explain the how the problem occurred. Will definitely call again for maintenance and repairs

5-Star Review
Cecy S., La Verne, CA
Via Yelp Testimonial

Description of Work: AC yearly maintenance.

McLay Services provided the annual service on our AC system. Michael did a diagnostic evaluation, added freon, replaced filters in the house, and gave me advice on how how to maintain my system and when to best schedule a heating system check. Michael was friendly and knowledgeable. I have been placed on their schedule to contact me in November to service our heating unit. I will definitely contact them in the future for any AC/Heating problems.

5-Star Review
Via Angi Testimonial

Working with McLay was straightforward and easy. They sent me an estimated cost for A/C maintenance as well as a list of everything included, no surprises. On the day of, the technician arrived right on time, explained what he was going to do, and completed the work really quickly. Everything was hassle-free.

5-Star Review
Julian G., Pomona, CA
Via Yelp Testimonial