St. Louis, MO
AC Services

Weis Comfort Systems: Keeping You Cool Since 1974

For over 40 years, Weis Comfort Systems has gone above and beyond to meet local home and business owners’ air conditioning needs. Our AC services are built on a commitment to safety, a dedication to quality, and a passion for customer satisfaction. We provide a range of flexible financing options, allowing you to get great deals on trusted name brands.

We also offer various money-saving specials, making our already reasonable work even more affordable. And with our customer-driven referral program, we are able to give back to those we serve more and more with each passing year. Call today to get exceptional AC service in St. Louis and experience the Wes Comfort Systems difference for yourself.

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To get more out of your Air Conditioning Service

Our Air Conditioning Service

Year-Round Comfort

AC Installation

AC Repair

AC Maintenance

AC Replacement



Daikin Fit HVAC

Commercial HVAC

Your St. Louis Heating & Cooling Experts

Offering a Range of Air Conditioning Services
in St. Louis & Surrounding Areas

Weis Comfort Systems is a full-service air conditioning provider. Whether your unit is leaking, making strange noises, or blowing warm air, our team has dealt with the problem before and knows how to handle it. Our certified St. Louis AC technicians are trained to handle a range of systems and are familiar with all the industry-leading makes and models of equipment.

Four Air Conditioning Units Outside Of An Upscal

Plus with fast, convenient service windows, you’ll never have to go long without adequate cooling when you’ve got Weis Comfort Systems on your side.

Schedule Your Service Today!


Air Conditioning Repair

You come home on a hot summer day. All you want to do is put your feet up, relax, and enjoy some cool, comfortable air. But when you open your door, you find that your air conditioning system is not working! Never fear — you can count on Weis Comfort Systems to be there for you for all your air conditioning repair needs. Equipped with the best tools and technology available, our experienced pros are able to troubleshoot issues fast, so you are protected during nasty heat waves.

With emergency services available upon request, there’s no reason not to contact Weis Comfort Systems when you’re looking for top-notch AC repairs.

Air Conditioning Installation

Looking to upgrade your AC system? Weis offers top-of-the-line AC equipment from brands including:

We make it easy to get a new air conditioning installation, regardless of your budget. Contact our team to learn more about our financing options. Our technicians also promise to always install your system ASAP and may even be able to offer same-day service depending on your needs.

Air Conditioning Replacement

Weis Comfort Systems will always do everything we can to save your air conditioning system. Unfortunately, sometimes it may be impossible to bring your AC back from the brink. The good news is that we stock a range of quality equipment to ensure you get air conditioning replacement that works better and lasts longer. And with today’s modern, energy-efficient AC units, you may actually be able to SAVE money on utility costs over time!

Ductless Mini-Split System Service

ductless mini split system on a brick wall

Say you live in a condo, or an older home that does not have the air ducts to make central air an option. If this sounds familiar, you will probably need a ductless or mini-split system. Mini-splits offer heating and cooling relief in individual rooms, so you can stay comfortable without having to worry about retrofitting your space for ductwork or using unreliable heating and cooling options like fans and space heaters.

At Weis Comfort Systems, we offer a full range of repair, installation, and maintenance options for ductless and mini-split systems, so no matter what kind of home you have, you can always stay comfortable.

Today’s mini-splits are more energy-efficient than ever, so if you need to upgrade or make the switch, contact our St. Louis cooling pros at Weis Comfort Systems today!

Schedule AC Service!

Contact Weis Comfort Systems For AC Maintenance!

A lot of homeowners assume they can get by without AC maintenance. Unfortunately, those homeowners often end up paying for that assumption later. While it may seem like an unnecessary expense right now, any experienced technician will tell you that good AC maintenance actually saves you money in the long run.

With exceptional maintenance plans from our trusted St. Louis air conditioning provider, you’ll always get the tune-ups you need right when you need them. Contact our team today! 

At Weis Comfort Systems, When You Live & Sleep Comfortably, So Do We

Weis Comfort Systems is known across Ballwin, the greater St. Louis Metro area, and Southern Illinois for providing fast and efficient services to homes and businesses alike. Our customers will happily tell you that we are a cut above, and after four decades in this industry, you can count on us to deliver work that’s honest and transparent.

Contact us anytime to learn what our St. Louis AC company can do for you, and remember, at Weis Comfort Systems, we’re not comfortable unless you are!

Weis Comfort Systems proudly offers:

  • Convenient service appointments (two-hour windows for all service calls!)
  • Call answering 24 hours a day, 7 days a week.
  • Free in-person estimates
  • A live person answering the phones — each and every time
  • A history of building long-term relationships within our community

Weis Comfort Systems is always available by phone at 636-202-0073
or you can send us a message online.

We'll Keep It Simple!

Why Choose Weis?

Free In-Person

Don't be surprised by "hidden" costs, schedule your FREE in-person estimate to get an honest quote and upfront pricing for your project.

Call us for Help 24/7

Emergencies don't wait for normal business hours, so neither do we! We are here to answer your call 24 hours a day, 7 days a week.

2-Hour Service

Say goodbye to waiting around for hours for your tech to arrive! We will give you a 2-hour window and a courtesy call 30 minutes before arrival.

Approved Installers
for Sam's Club

We are the trusted install partner of Sams Club.

5-Star Reviews All Around

See Why Our Customers Love Us

Call (636) 266-2290 to Get Started

Let’s Get You Comfortable

Contact Form

Book Online About Us 636-266-2290