AC Installation & Replacement

Home Air Conditioning Experts You Can Trust Since 1978

Serving San Gabriel Valley, LA County, San Bernardino County, and the Inland Empire

The Best Choice for AC Installation When You Want the Job Done Right

When it’s time to install a new air conditioning system, you’ll want a qualified HVAC professional you can trust to get the job done right. By turning to the experts at McLay Services, Inc., you can rest assured that you’ll get a quality air conditioning system that is properly installed for maximum comfort and efficiency.

McLay Services, Inc. has been providing exceptional air conditioning services since 1978. This means that our customers have peace of mind knowing we stand behind our work with 44 years of experience and expertise. Our technicians are NATE certified, highly experienced, and fully vetted. Additionally, they are held to the highest standards for workmanship and excellence in customer service. Because of the high quality of service that we have provided over the years, we have thousands of satisfied clients and more than 400 five-star reviews across Yelp, Google, and Angi.

Carrier Factory Authorized Dealer

McLay Services - Carrier 2021 President’s Award WinnerCarrier Factory Authorized Air Conditioner Installers

Consistent with our dedication to providing our customers with exceptional air conditioning and heating solutions, McLay Services is proud to sell and install Carrier’s impressive line of air conditioners, furnaces, heat pumps, and ductless mini-splits. By meeting Carrier’s strict requirements for licensing, customer satisfaction, and technician experience and training, we have earned the Carrier Factory Authorized Dealer designation. Carrier sets the bar for its Factory Authorized Dealers so high that less than 3% of Carrier dealers nationwide achieve and maintain this status each year. Having won the Carrier Russell Sigler Award and the Carrier President’s Award three times, we’ve also stood out amongst Carrier’s premier dealers by exemplifying leadership in business management, customer service, HVAC expertise, and operational excellence.

Click here to view our online catalog of Carrier products.

Money-Saving Rebate Offers. Special Financing With Approved Credit. 100% Satisfaction Guaranteed.

By working with a Carrier Factory Authorized Dealer like McLay Services, Inc., you are guaranteed to get an expertly installed, high-quality air conditioning system. We offer free in-home consultations and estimates and stand behind each new home air conditioning installation with a one-year, 100% satisfaction guarantee.

Schedule Your Free In-Home Estimate Today – Call (909) 392-2202

Call today to schedule your free in-home consultation for an air conditioning installation in La Verne, San Dimas, Glendora, Rancho Cucamonga, Claremont, Upland, Chino Hills, Diamond Bar, Walnut, Azusa, Ontario, Pomona, or other nearby areas. We’ll dispatch one of our highly experienced and knowledgeable HVAC professionals who will take the time needed to thoroughly assess your home, understand your lifestyle and indoor comfort requirements, and develop custom-designed solutions to meet your needs and budget. We have convenient financing options available with approved credit and will do our best to make you aware of any available rebates and special offers that can help save you money.

Recent Projects

Professional Air Conditioning Company West Covina, CA

Special Offers & Rebates

We Pride Ourselves in Our Honesty, Integrity, and Professionalism


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

Customer Reviews


I called McLay Services on Saturday at 2 pm on Memorial Day weekend with several questions about our Air Conditioner and a possible installation I was going to be receiving from another company the next day. I did not expect the incredible attention to my call that I received. Talva went above and beyond to answer my questions and ease my concerns. I cannot say enough good things about this company and will definitely be using them in the future.

Lee Ross Via Google Review


I had a new faucet installed, washer and dryer hooked up. Solved a dryer vent problem. Michael was professional, cleaned up after himself. Did a great job. I highly recommend McLay services.

Tracy W., La Verne, CA Via Yelp Testimonial


I highly recommend McLay services. After speaking with Nellie, she scheduled a time for my bathroom faucets to be installed. Chad arrived on time, even wearing a mask because of Covid. He installed them quickly, and cleaned up after himself. They are perfect. I have used McLay several times before, they never disappoint.

Tracy Walsh Via Google Review