Weis Comfort Systems is proud to offer HVAC installation and repair to customers throughout Ballwin, Metro St. Louis, and Southern Illinois. It's important for home and business-owners to prepare for seasonal changes, but at Weis, we prepare for you. With our excellent maintenance plans, you'll be prepared year-round, no matter what the weather is like outside. Our goal is to keep you comfortable regardless of your budget, which is why we also offer various specials to make our work even more affordable.

For over 40 years, Weis Comfort Systems has gone above and beyond to meet local home and business-owners' air conditioning needs. Our St. Louis 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.

At Weis Comfort Systems, we provide furnace repairs in St. Louis backed by 40 years of experience. Built on strong family values and a legacy of service, Weis strives to go above and beyond for our customers in a way most other heating companies can't or won't. We provide in-person estimates, so you never have to worry about committing to anything before you're ready. Our technicians are factory-trained, and know how to handle all the latest, industry-leading equipment. And with same-day and 24/7 emergency services, you'll never have to wait long to get your furnace up and running when you've got Weis Comfort Systems on your side.

Don't want to upgrade to a new furnace? Not interested in replacing your boiler? Maybe you live in a smaller home and are looking to downgrade to a heating system that doesn't require as much power? Well, if this sounds like you, then a heat pump could be the answer you've been looking for. At Weis Comfort Systems, we offer heat pump services in St. Louis to accommodate a range of properties, from small condos to big homes. Our technicians are backed by over 40 years of experience, so you already know they have what it takes to get the job done right.

If your furnace isn't functioning at its highest capacity or isn't functioning at all, Weis Comfort System's team of factory-certified and trained professionals will find the source of the problem, guaranteed. And if you do end up needing a furnace replacement, we can provide you with an industry-proven brand that will ensure the happiness and well-being of our your entire family for years to come. Our technicians have been repairing and replacing furnaces in Ballwin, MO, the greater St. Louis area, and parts of Southern Illinois for over 80 years.

With temperatures often reaching the mid to low 20s in the coldest winter months, having working heating equipment in St. Louis is essential. Too often, homeowners wait to upgrade their heating equipment until something goes wrong, and they wake up freezing in the middle of the night. Don't make that mistake this winter. If you suspect your furnace needs an upgrade, make a smart investment in your comfort, and call Weis Comfort Systems today. Weis Comfort Systems proudly provides furnace installation in St. Louis backed by decades of experience.

Although probably not as well-known as furnaces, boilers remain a popular heating choice across the United States for their energy efficiency and ability to heat large spaces. At Weis Comfort Systems, we proudly offer boiler services in St. Louis, including repairs, replacements, and installations. Our heating techs are backed by 40 years of experience, and are familiar with all the top makes and models of heating systems on the market. We also offer affordable prices, as well as free in-person estimates.

Weis Comfort Systems specializes in a complete range of HVAC services, including air conditioning installation. We know how to conduct a thorough evaluation of your current cooling comfort system, allowing our technicians to determine the most efficient solution for your residential home or commercial property. If you've noticed the cost of your energy bill rising or if your air conditioning system seems to be underperforming, we may suggest installing a new air conditioning system. In the event that you're in need of a new AC unit, Weis offers a full selection of industry-leading products that assist with lowering your energy bill while providing you and your family a level of comfort that is unmatched.

St. Louis can get pretty chill during the wintertime. Temperatures often reach low to mid-20s during the coldest months, and with climate change, weather patterns have become more erratic than ever. That's why it is absolutely essential for the comfort of yourself and your family to have working heating equipment. As anyone who's ever woken up in the dead of a chilly December's night or early on a freezing January morning knows, going without a functioning furnace, boiler, or heat pump is just not an option.

Prevent damages and expensive repair while increasing the lifespan of your home comfort system with a maintenance plan from Weis! We have developed custom maintenance plans varying between heating and cooling systems which include extensive assessment of parts, monitoring controls, cleaning and lubrication, tightening electrical connections, and more. And allowing the Weis team of seasoned technicians to perform routine maintenance on your comfort systems enables home and property owners throughout the region to enjoy energy efficiency at cost-friendly prices!

In our 40 years of impeccable heating and air conditioning services, we have been fortunate enough to expand our services to two states. We are always looking for new opportunities to help more people, and we are thrilled to now operate under four locations while continuing to provide the same well-reputed services to the people in these areas. In addition to four full service locations in Missouri and Illinois, we serve dozens of towns in these areas.

Backed by over four decades of experience in the HVAC industry, our Missouri and Illinois customers can trust that the Weis Comfort Systems team will provide them with high-quality repair, installation, and maintenance, professional comfort system advice, and the industry's top products from leading brands. As always, we look forward to working with you in ensuring that your home or property retains a perfect level of comfort year-round. Call us at (636) 202-0073 for heating and cooling services in St. Louis that you can depend on.

Did your AC unit take a semi-permanent break and now you can't stand the inside of your home or condo? Are you experiencing unpredictable temperatures inside your house? Or is your home just too hot to deal with? As you may well be aware, your AC unit is in dire need of a repair. Call Weis Comfort Systems for expert AC repair in St. Louis. We have over four decades of air conditioning repair, installation, and maintenance experience, and we know how to get your old and worn down AC unit into shape so that it can keep your house cool and comfortable.

Here at Weis Comfort Systems, our goal is simple; we aim to provide our customers with the highest quality of commercial HVAC services possible. We understand how important it is to create comfortable working and living conditions for individuals on your property, and we are committed to providing fast furnace and AC repair to guarantee quality improvements. Whether you are looking for repairs, replacements, or maintenance, our commercial heating and cooling pros have the skills and experience to get the job done right.

At Weis Comfort Systems, we promise to always do everything in our power to save your current air conditioning system. However, eventually there may come a point where it is simply more cost-effective to replace your current system rather than keep repairing it. When that day comes, you can count on our team for expert AC replacement in St. Louis, Ballwin, and surrounding areas. Backed by 40 years of experience, Weis has a reputation for getting the job done right. Our factory-trained technicians are familiar with all the latest makes and models of equipment on the market, and are equipped with all the cutting-edge technology to give your home the upgrade it needs.

Spring or summer, our certified and trained heating and cooling technicians at Weis Comfort Systems have the skills and experience you need to ensure efficient AC maintenance and inspection in the St. Louis area. Weis specializes in Lennox, Daikin, and other top-of-the-line brands and products. We can offer emergency service when you need it most, and are available year-round to help assist you during seasonal climate swings-there's no off-season for us! Contact us today to get more information about our capabilities, and find out why Weis Comfort Systems is your go-to company for AC maintenance in St. Louis and beyond.

We have worked with Weis for a couple years and they consistently go above and beyond to make sure all of our heating and cooling needs are met. Their quality of service always exceeds our expectations and we highly recommend them.

We've been Weis customers for all of the 26 years we've owned our home. Mostly it was for checkups and installation of a humidifier. We purchased a new HVAC system two years ago that came with a maintenance package for two AC checkups and two Heater checkups. We just had the second AC checkup and as always, Weis was prompt, they called ahead to let us know they were on their way, and they did their work with little interruption to our daily routine. These folks are absolute pros. We have always felt very fortunate to have found them at the very beginning of our home ownership.

We have been a customer since we built our home in 2004. We would recommend Weis Comfort to anyone. Any concern we have had they are there to address it. Wonderful workers always on time and represent the company in a professional manner.

What's new?

#TBT | After returning home from WWII, Richard Weis asked his dad for the keys to their shop, which he reopened as Weis Heating Company.

Posted on Mar 04, 2021  •  Facebook

If your HVAC system is still running on R-22 refrigerant, also known as Freon, then it’s time for an upgrade!

Posted on Mar 02, 2021  •  Facebook

If you’re a new customer with Weis Comfort Systems, we have a gift for you! Enjoy $50 off of your first service call.

Posted on Feb 26, 2021  •  Facebook

Your pup may be a surefire source of warmth for your lap or your toes, but what about the rest of your home? Leave… https://t.co/KPZEcWTnLU

Posted on Dec 30, 2020  •  Twitter

The chilliest time of the year for the Missouri/Illinois area is fast approaching. There's no reason not to try the… https://t.co/h48LQrhdOB

Posted on Dec 29, 2020  •  Twitter

We wish everyone the happiest and coziest holiday! Even if you aren't able to take part in your usual traditions,… https://t.co/HitsWlaSp4

Posted on Dec 25, 2020  •  Twitter

No need to commit before you're ready. Let us make your life easier and prove our commitment to keeping you and you… https://t.co/V9Dvm1D1BJ

Posted on Dec 23, 2020  •  Twitter

Like a good friend or neighbor, we want to be the one you call for any and all HVAC issues. To welcome you, we are… https://t.co/w2sYytUKaR

Posted on Dec 22, 2020  •  Twitter

Your home should be as beautiful and comfortable as you always dreamed it would be. Weis helps make that possible w… https://t.co/ihbl3vuZ27

Posted on Dec 18, 2020  •  Twitter

You never know when an HVAC emergency will hit. Your furnace will typically not wait until it's convenient for you… https://t.co/pHrFX07KmX

Posted on Dec 16, 2020  •  Twitter

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