Over 50 Years of Experience

Reliable Air Conditioning, Heating, & Plumbing Experts

Serving the Greater Texas Area Since 1974

Enter Your Zip Code for Local Deals & to Schedule an Appointment!

Over 50 Years of Experience

Reliable Air Conditioning, Heating, & Plumbing Experts

Serving the Greater Texas Area Since 1974

Enter Your Zip Code for Local Deals & to Schedule an Appointment!

Our Services

Air Conditioning

Heating

Plumbing

Generators

Ductless

Indoor Air Quality

Air Conditioning

Heating

Plumbing

Generators

Ductless

Indoor Air Quality

Air Conditioning

Heating

Plumbing

Generators

Ductless

Indoor Air Quality

Discover Local Promotions Available Near You!

Explore our current promotions for heating, cooling, plumbing, and other residential needs. Take advantage of exclusive deals tailored just for you!

Up to $1,500

HVAC System Replacement

Cash for Clunkers: HVAC system buy-back up to $1,500.

Schedule Now

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.

Expires: Sep 30, 2026

$79

HVAC Tune-Up

Schedule Now

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.

Expires: Sep 30, 2026

15% Off

Duct Cleaning

Free estimate available.

Schedule Now

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.

Expires: Sep 30, 2026

Why Choose McWilliams Heating, Cooling & Plumbing

Customer Reviews

      
   McWilliams Heating, Cooling and Plumbing
   1150 Google reviews 
  Write a review 
  
 
 
   
 
 
       Posted on Google  
   
   Jessica Smith 
 
 
 
  Dylan H. Showed up early the same day that I called and was extremely helpful in helping to get my system diagnosed and made recommendations on what I needed to have done. Very happy with the service I received.
  
 
      Posted on Google  
   
   Rick Williams 
 
 
 
  
  
 
      Posted on Google  
   
   Suzanne Benton 
 
 
 
  I had a leak in my water line at the horse barn along with a leak in my kitchen sink AND one of my AC units in my house with problems. Called McWilliams and got scheduled for repairmen to come out. I got 3 of the sweetest, smartest, most polite young men that DEFIANTLY KNEW THEIR JOBS!!! They are TAVO, Air Conditioner repair, and Ivan and Jonathan, Plumbers. I give all 3 5 STARS and whenever I need McWilliams again I will ask for these guys. THANKS GUYS
  
 
      Posted on Google  
   
   Mandy Pinner 
 
 
 
  Brit came at the end of his day and took care of us quickly and efficiently.  Even though he had to order a part, he made sure to get us a temporary fix till our part comes in! We are so pleased with McWilliams Heating, Cooling and Plumbing!
  
 
      Posted on Google  
   
   C. Shel 
 
 
 
  
  
 
      Posted on Google  
   
   Kimberly Lowry 
 
 
 
  Dylan Herman was great! Very cordial and professional. He explained what he was doing and answered all of our questions. He also cleaned up before he left.  Would highly recommend and will be recommending to my friends and neighbors.
  
 
      Posted on Google  
   
   Dan Billman 
 
 
 
  Excellent installation of UVC With Oxidation Installation 120V/240V: Install Bacteria Prevention System
  
 
      Posted on Google  
   
   Vonnie Kee 
 
 
 
  Dylan was very professional & informative & awesome customer service & was top notch even after our electricity spontaneously went out & sounded like a transformer blew somewhere behind us on back street & totally no fault of anyone but still getting air conditioning serviced & suddenly no electricity what so ever
  
 
      Posted on Google  
   
   Ronald Donoghue 
 
 
 
  Very happy with my seasonal AC tune up. $79. Total. A competitor wanted to charge me $400.

Financing Available

At McWilliams Heating, Cooling and Plumbing, we understand that HVAC and plumbing services are essential for the comfort & functionality of your home. We are committed to providing our customers with the best solutions, & we believe that financial constraints shouldn’t stand in the way of your comfort.

That’s why we offer flexible financing options, ensuring that you can access our top-notch services without compromising your budget. Our goal is to make your experience seamless, convenient, & stress-free, allowing you to enjoy a comfortable living environment without worrying about upfront costs.

Heating & AC Installation

Purchasing a new air conditioner or heating system is one of the best investments a homeowner can make, and our intallation technicians do everthing possible to safeguard that investment.

Every installation visit begins with a full load calculation to determine the exact capacity needed to keep the whole home cool and we recommend a system calibrated to meet that need.

AC & Heating Repair

When equipment does fall, our A/C & heating repair team is ready to step in and fix all makes and models.

We send our teams out fully stocked with all the equipment they need to fully service your unit. In addition, we offer 7-7-7 services to keep our friends and neighbors comfortable in any season.

Plumbing Services

Our team of licensed plumbing specialists are well equipped and always available. When you trust us with your plumbing, you can rest assured that you’re receiving top-notch service from a qualified, professional team.

Wheather you need residential or commercial plumbing services, at McWilliams Heating, Cooling and Plumbing, we offer a full range of services.