McLay Services, Inc. provides dependable, high-quality heating, air conditioning, and plumbing solutions for a wide range of industrial, commercial, educational, healthcare, public facilities, and advanced technology clients. Our commitment to getting the job done right the first time and always providing excellent customer service has made us the trusted choice for thousands of commercial and residential clients in and near La Verne, San Dimas, Glendora, Rancho Cucamonga, Claremont, Upland, Chino Hills, Diamond Bar, Walnut, Azusa, Ontario, and Pomona.

At McLay Services, we’re just as proud of the long-time relationships that we have built with our customers as we are of our reputation for being honest, dependable, and trustworthy. We keep an eye on our retention rate because this is one of the clearest indicators that we’re consistently delivering exceptional service that meets or exceeds customer expectations. As we get to know our commercial customers over time, we continuously look for ways to help our clients save time and money through increased energy efficiency, expert repairs and installations, preventative maintenance plans, and other personalized recommendations and solutions.

We provide a comprehensive range of plumbing and HVAC services and are specialists in building automation and energy management control systems. All of our work is performed by highly qualified technicians, who have finished rigorous training, have years of experience, and continue to receive ongoing training to keep them up to date on the industry’s latest best practices and new products and technology.

Click here for a complete list of our commercial plumbing, heating, ventilation, and air conditioning services. Call (909) 392-2202 to schedule service today. We’re available Monday through Saturday and do our best to accommodate after-hour and emergency service requests.