Air Conditioner Repair, Installation, & Replacement in Nacogdoches

There's no way to beat the Texas heat without excellent cooling equipment, and at McWilliams & Son Heating and Air Conditioning, we specialize in helping our friends and neighbors find the best air conditioners available and keep them running at maximum efficiency. From A/C installation to maintenance to repair, we offer a full range of air conditioning services backed by factory authorization and NATE certification.


Whether you need an air conditioner for a newly built home, a replacement for a failed machine or an energy-efficient upgrade, we know how to find the right machine. Our status as a Carrier Factory Authorized Dealer means that we have met high standards of customer satisfaction, brand loyalty and HVAC expertise, and we bring that expertise and familiarity with the latest Carrier brand air conditioners to our customers.

We start every A/C installation visit with a full load calculation to determine exactly how much power a given home needs to stay cool, and we pick out a system that is calibrated to meet that need while staying within the customer's budget. Our expert technicians know how to make every model meet Carrier's exacting standards, and we thoroughly test each appliance before declaring the job done.


Since they work so hard to keep our friends' and neighbors' homes cool even in the height of the Texas summer, air conditioners endure a great deal of wear and tear. To stay at maximum efficiency throughout the cooling season, these appliances need yearly service, and our certified technicians are trained and equipped to maintain all makes and models. Our service visits are not only about preventing future failures but also making small adjustments to improve energy efficiency, saving our customers money two ways. We also offer annual service agreements to keep air conditioners running smoothly year after year.


Although we at McWilliams & Son Heating and Air Conditioning believe prevention is the best approach to air conditioning failures, when they inevitably do take place, our air conditioning repair team is ready to help. Our technicians arrive promptly for every air conditioning repair visit in vans loaded with parts and equipment and work quickly to resolve the issue, usually on the same day. We are committed to keeping communication open with the homeowner and never push for a replacement unless repairs are unfeasible. To keep our customers safe throughout the cooling season, we also offer 7-7-7 service.