San Bernardino County | Riverside County | North Orange County | Los Angeles County

Trusted Heating and Air Conditioning Services for Over 35 Years!

At McLay Services, we’re proud of our 35+ years of service excellence in the community and look forward to helping you with your air conditioning, heating, plumbing and water filtration/softening needs.  We’re pleased to serve both residential and commercial customers.  You can count on us to provide you with honest, professional, quality residential and commercial service.


“Experts You Can Trust!”

Heating and Air Conditioning Repairs

At McLay, we make emergency heating and air conditioning service calls our top priority so that when our customers run into heating system, furnace or air conditioning problems we can quickly dispatch our expert and friendly NATE certified HVAC technicians to your home or business for fast diagnosis and repairs.

Commercial HVAC Services

We offer commercial heating and air conditioning services in all of our service areas in the Inland Empire cities including the following services:

  • Heating and Furnace Installation
  • Air Conditioning Installation
  • Heating and Furnace Replacement
  • Air Conditioning Replacement
  • Heating and Furnace Repairs
  • Air Conditioning Repairs
  • Heating and Furnace Maintenance
  • Air Conditioning Maintenance

Carrier Brand HVAC Products Dealer

We are proud to be a factory authorized dealer of Carrier Brand heating and air conditioning products. Carrier is consistently named the top HVAC manufacturer with their products achieving the highest standards in energy efficiency. Products we sell and install include:

  • Air Conditioning Systems
  • Heat Pumps
  • Packaged Heating Systems
  • Packaged Air Conditioners
  • Ductless Systems
  • Gas Furnaces
  • Boilers
  • Fan Coils
  • Evaporator Coils
  • Indoor Air Quality Products
  • Programmable Thermostats and Controls
  • And more…

Full Range of Plumbing Services and Repairs

We offer our clients a full range of plumbing services including emergency repairs. At McLay, we are your one-stop for all of your heating, cooling and plumbing needs. Our plumbing services include:

  • Plumbing Video Line Inspection
  • Diagnosing and Fixing Slab Leaks
  • Water Heater Maintenance
  • Water Heater Repairs
  • Water Heater Replacements
  • Water Heater Installations
  • Tankless Water Heater Sales
  • Hydro Jetting Lines
  • All Your Plumbing Needs
  • Water Softener Installation
  • Water Softener Maintenance

We realize a customer’s trust is never a given; it must be earned.  The values upon which our success depends on are:  Hard Work, Honesty, Reliability and Quality Service.  We charge by the job, not the hour.  It’s simple, it’s honest, and it saves you money!

Call US For All Your Plumbing, Heating and Air Conditioning Needs!