About Us

Learn More About the Heating & Cooling Experts at McWilliams & Son

About McWilliams & Son

Family traditions are what this country was built around. The spirit of good customer service, hard work and being trustworthy are valuable foundations of any company. McWilliams & Son Heating and Air Conditioning was built on those same principles and have focused on that since 1974. For 3 generations McWilliams & Son Heating and Air Conditioning has proven to be a reliable, locally –owned trustworthy HVAC business with locations in Lufkin, Livingston, & Nacogdoches and serving customers in surrounding areas.

McWilliams & Son service van
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Family-Owned for 3 Generations

At McWilliams & Son Heating and Air Conditioning we’re proud of our years of service to the Lufkin Nacogdoches, & Livingston areas, and look forward to helping you with your air conditioning and heating needs. We’re pleased to serve both residential and commercial customers; our team is prepared to help you with the sales, service, and installation of the comfort system that is ideal for your home or business. Whether it’s a new installation or routine service, our factory-trained technicians provide the expertise your comfort depends on. At McWilliams & Son Heating and Air Conditioning, we repair all makes and models.

Why Call McWilliams?
  • Factory-Trained Technicians
  • Family-Owned
  • Your Comfort is Our Top Priority
  • Trustworthy HVAC Specialists
  • We Repair All Makes & Models
  • We Serve Residential & Commercial Customers
owner of Mc Williams and Son giving a company speech

A Message From the Owner

During his 25 years in the Navy, our founder, Irvin McWilliams Sr. became known simply as “Mac” because on huge warships such as the Kitty Hawk, it was easier to call out for ‘Mac’ than it was to call out “McWilliams.” On these ships, Mac learned the ropes of heating, air conditioning and refrigeration.

As a sailor, Mac learned how to be efficient, think outside the box and be a problem solver. That’s exactly what we do today with our own brand of comfort systems, Armada, brought to you by Sailor Mac!

McWilliams & Son has taken its 45 years of industry knowledge and partnered with a manufacturer to create a top-notch series of comfort systems to bring a level of comfort to your home that is second to none.

We are a heating, ac, & plumbing company PROUDLY SERVICE Angelina, Nacogdoches, Polk, Liberty, San Jacinto, Walker and Surrounding Counties
  • Alto, TX
  • Apple Springs, TX
  • Broaddus, TX
  • Bronson, TX
  • Brookeland, TX
  • Camden, TX
  • Center, TX
  • Centralia, TX
  • Chireno, TX
  • Cleveland TX
  • Colmesneil, TX
  • Corrigan, TX
  • Cushing, TX
  • Dallardsville, TX
  • Diboll, TX
  • Douglass, TX
  • Etoile, TX
  • Garrison, TX
  • Geneva, TX
  • Goodrich, TX
  • Groveton, TX
  • Hemphill, TX
  • Huntington, TX
  • Huntsville, TX
  • Jasper, TX
  • Livingston, TX
  • Long Branch, TX
  • Lovelady, TX
  • Lufkin, TX
  • Martinsville, TX
  • Maydelle, TX
  • Kennard, TX
  • Minden, TX
  • Mount Enterprise, TX
  • Nacogdoches, TX
  • Onalaska, TX
  • Pennington, TX
  • Pineland, TX
  • Pointblank, TX
  • Pollok, TX
  • Reklaw, TX
  • Rusk, TX
  • Sacul, TX
  • San Augustine, TX
  • Shepherd, TX
  • Timpson, TX
  • Trinity, TX
  • Tenaha, TX
  • Wells, TX
  • Woodville, TX
  • Zavalla, TX