Sep 8, 2026
How Much Does HVAC Replacement Cost? (2026 Cost Guide)
Reading Time About 16 Min
Commercial HVAC
McLay Services, Inc.
VerifiedEstablished · 48 yrs
4.8(50 reviews)•Residential & Commercial•Serving Covina, CA
EPANATENCILicense #1156884
Commercial plumbing, heating, and air conditioning contractor offering installation, repair, and maintenance services.
McLay Services, Inc. is a commercial HVAC contractor based in Covina, CA. Services listed include repair & installation, indoor air quality (iaq), maintenance programs and building automation. 48 years in business, emergency service available and licence #1156884.
48
Years in Business
Yes
Emergency Service
Available
Financing Available
Covina, CA
Service Area
Services Offered
Water Filtration & Softener Systems
Backflow Prevention
HVACR Service
Repair & Installation
Indoor Air Quality (IAQ)Maintenance ProgramsBuilding AutomationEnergy Management Control SystemsCommercial Specialty Services
Customer Sentiment Summary
Strengths
- Technical depth stands out: 12 reviewers credit the crew with a correct diagnosis and a clean repair.
- Crews carry themselves professionally — 9 reviewers single out polite, respectful technicians.
- Technicians turn up inside the booked window, something 7 reviewers went out of their way to note.
Areas to Watch
- No complaint recurs across the 50 reviews analysed, which is consistent with the 4.8-star average — but a clean record is not the same as a long one.
Reviews from Best HVAC visitors
No Best HVAC reviews yet
Been a customer of McLay Services, Inc.? Be the first to rate them.
Get Your HVAC Business Listed
Want to put your heating and cooling company in front of local homeowners and businesses actively searching for reliable HVAC services? Claim your spot and connect with high-intent customers in your area.
Get Featured
Blog / News
View all articles HVAC Tips, Guides & Industry News
Sep 7, 2026
Why Does My Thermostat Screen Go Blank?
Reading Time About 6 Min
Sep 6, 2026
How to Clean AC Condenser Coils Safely
Reading Time About 7 Min
Sep 3, 2026
AC Blowing Warm Air? Common Causes and Fixes
Reading Time About 6 Min
FAQ
Contact Our TeamFrequently Asked Questions
Have another question? Our team is here to help.
McLay Services, Inc. lists repair & installation, indoor air quality (iaq), maintenance programs, building automation and energy management control systems. Contact them to confirm they handle your specific job.
McLay Services, Inc. is based in Covina, CA.
Yes, McLay Services, Inc. lists emergency service. Call them directly for urgent heating or cooling repairs.
McLay Services, Inc. lists licence number 1156884. You can confirm it is current with the California contractor licensing board.
Use the call button, website link or contact details on this page to reach the company directly.
Get in touch and we will keep your listing details accurate and add photos.