HVAC Installation

We provide a wide array of HVAC services to address your needs

Up to $1,500

HVAC System Replacement

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

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

Expires: Oct 31, 2026

$79

HVAC Tune-Up

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

Expires: Oct 31, 2026

15% Off

Duct Cleaning

Free estimate available.

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

Expires: Oct 31, 2026

Expert HVAC Installation Specialists

One of the biggest investments you can make in your family’s comfort and security is a new heating, ventilation or air conditioning device. At McWilliams Heating, Cooling and Plumbing, we specialize in recommending great heaters and air conditioners for our friends and neighbors and installing them properly every time. With our factory-authorized HVAC installation, you can rest assured that your new appliance will run reliably and efficiently for many years to come.

We’ll Find the Right HVAC System for You

Every HVAC installation visit begins with your home’s load calculation, a measure of the amount of heating and cooling power the home needs to stay at a comfortable temperature. This is a very important step, as a system that is too weak or too powerful will not run as efficiently and will not last as long as one that is properly calibrated. We always perform our own load calculations, taking square footage, installation, and other factors into account, and we never rely on a previous calculation that may be incorrect or outdated.

Why Choose McWilliams Heating, Cooling and Plumbing?

Extensive Factory Training
We Service All Makes & Models
Estimates Before Beginning Work
Commitment to Excellence

We’re Not Comfortable Until You Are

Whether you need an entirely new HVAC system for a newly constructed home or a replacement for an old or failing machine, our HVAC installation team is ready to serve you. Get your next heater or air conditioner from McWilliams Heating, Cooling and Plumbing, where we’re not comfortable until you are.

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.
  
 
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   Rick Williams 
 
 
 
  
  
 
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   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!
  
 
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   C. Shel 
 
 
 
  
  
 
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   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.
  
 
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   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
  
 
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   Ronald Donoghue 
 
 
 
  Very happy with my seasonal AC tune up. $79. Total. A competitor wanted to charge me $400.