McLay Services, Inc.
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Claim This BusinessAbout McLay Services, Inc.
McLay Services, Inc. has operated from Covina since 1978, delivering air conditioning, heating, and plumbing solutions across Los Angeles County's eastern corridor. The contractor holds a 4.7-star rating drawn from 95 verified client reviews, and maintains active service commitments in La Verne, San Dimas, Glendora, Rancho Cucamonga, Claremont, and Upland. This breadth reflects four decades of steady presence in communities where summer temperatures routinely climb past 100 degrees and winter nights demand reliable furnace performance.
The company carries Carrier residential equipment and has earned the Russell Sigler Award in recognition of dealership excellence. Beyond traditional HVAC, McLAY SERVICES extended capabilities include a full-service plumbing division handling leak detection, slab repairs, water heater installations, and bathroom remodels. Indoor air quality solutions feature whole-home performance upgrades and advanced filtration systems, positioning the contractor as a multi-trade resource for homeowners pursuing energy efficiency rebates through Southern California Edison programs.
Client narratives circulating online name Bryan as a plumbing technician who arrived same-day to extract jewelry from a drain line and completed shower, sink, and toilet renovations described as exceptionally neat. One review documents technician Chad Delk addressing a Navian tankless water heater heat exchanger failure, though the client noted uncertainty around labor pricing before work commenced.
What Customers Say
Of 4 detailed reviews sampled, 3 award perfect ratings citing same-day responsiveness and fair pricing, while 1 negative review targets billing transparency after a $295 diagnosis fee for a tankless heater. Positive mentions note technician Bryan by name and highlight diagnostic thoroughness.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–6 PM |
| Tuesday | 7 AM–6 PM |
| Wednesday | 7 AM–6 PM |
| ThursdayToday | 7 AM–6 PM |
| Friday | 7 AM–6 PM |
| Saturday | 9 AM–2 PM |
Services
AC Installation & Replacement
Carrier cooling systems designed for Southern California's inland valleys, with SEER2 efficiency ratings qualifying for utility rebates.
AC Repair & Maintenance
Compressor, refrigerant, and electrical diagnostics; seasonal tune-ups extending equipment lifespan and preventing Julyno-August failures.
Heat Pump Systems
Dual-function heating and cooling units providing year-round climate control with backup electric resistance heating.
Furnace & Heating Service
Gas furnace installation, ignitor replacement, and combustion safety inspections meeting Covina building codes.
Plumbing Repairs & Leak Detection
Bathroom remodels, faucet replacements, slab leak isolation, and drain cleaning using video camera inspection technology.
Water Heater Services
Navian tankless setup, conventional tank replacement, and water softener integration for hard mineral municipal supply lines.
Indoor Air Quality
Whole-home filtration, REME HALO purification units, and ductwork sanitization reducing particulate and biological contaminants.