HVAC Companies in South County. For nearly a century, Weis Heating and Cooling, an experienced South County, MO HVAC company, has offered customers high quality and affordable heating and cooling repair services. Weis’ HVAC contractors combine industry-leading techniques and brands to optimize heating, vacuum, and air conditioning units’ efficiency and reliability.

As one of the preferred HVAC companies in South County, MO, Weis delivers high-end service in a variety of areas. South County HVAC repair requires trained professionals with the right tools, experience, and commitment to safety. Offering South County businesses and homeowners with unbeatable pricing and quality work, Weis Comfort Systems’ services include:

Offering these services and others, Weis Comfort System is one of the most well-rounded HVAC companies in South County, MO. We will explore more about our capabilities and services throughout this page. As always, you can contact us for additional information.

HVAC Companies in South County, MO

For people who are South County home or business owners, it is important to have a seasoned HVAC contractor on hand. Weis Heating and Cooling is a convenient, flexible, and local HVAC repair and installation company that serves Missouri and Illinois clients. Another reason South County property owners prefer Weis Comfort Systems is our flexible long- and short-term financing options.

Weis is ready and willing to help upgrade, maintain, or replace your HVAC systems. Our contractors are factory-certified, trained professionals that answer any questions you might have about Weis’ HVAC repair and installation services. Get more info and a free quote today.


South County HVAC Companies like Weis Comfort Systems know how difficult it is for some homeowners to handle HVAC repairs. Here is our maintenance checklist to give you with a few go-to tasks and checks to keep your cooling, heating, and other systems working:

  • Check your thermostat to make sure your HVAC system stays at a reasonable and comfortable level. You can cut down costs by investing in digital thermostats to keep their homes cool in the summer and warm in the winter, and even kick on at specific times to lower energy usage.
  • Tighten electrical connections. You can also measure currents and voltages of a system’s motors. Faulty electrical connections can result in unsafe operation, poor efficiency, and even electrical fires. South County HVAC contractors like Weis Comfort Systems point out that poorly-functioning equipment lowers a systems’ life expectancy. Also check all of the HVAC system’s oil/gas connections and controls.
  • Lubricate all moving components. "Dry" parts lead to friction and rust. This may result in increased workload and further decreases your system’s efficiency. You can always contact Weis Comfort Systems for more info about HVAC maintenance in South County.
  • Check the condensate line. Your AC unit handles water. Ask your AC contracting company about this process or look at these tips on American Home Shield.

It’s important to care for and monitor your heating and cooling systems. Weis Comfort Systems, one of the top HVAC companies in South County, is here to help homeowners maintain HVAC systems to reduce costs, improve efficiency, and extend their longevity. Besides, who wants to deal with a heating or cooling issue in the middle of winter or summer? Contact Weis to learn more and request service.

Weis Comfort System recommends property and home owners to schedule seasonal HVAC maintenance checks to avoid serious problems. If you’re looking for HVAC companies in South County, MO, give us a call. (636) 266-2290

South County, MO, HVAC Companies | Why Choose Weis?

For South County HVAC companies, reputation is essential. The expert South County HVAC contractors at Weis have proven their dedication to service over the years as a top choice for business and home owners in need of HVAC maintenance and repair. You can count on us to protect your family and home’s HVAC interests. Read more about Weis’ past service in these responses and HVAC contractor reviews. Below are a few of the goals we follow to make sure Weis is your South County HVAC company of choice:


A leading South County HVAC repair company, Weis knows the value of quality service. We hope to provide the best in the business including well-trained HVAC contractors, safe and efficient equipment, and no hassle results.


Weis Comfort Systems knows financial constraints put on home and business owners. Weis Heating and Cooling accepts major credit cards (Visa, Mastercard, etc.), checks, and cash. You can learn more about Weis’ pricing and financing for AC installation, boilers replacement, maintenance, and other services. We also offer coupons and rebates.


Weis relies on state-of-the-art safety protocols, products, and practices in addition to hiring methods that ensure high-quality HVAC contractors with excellent backgrounds, skills, and years of experience. Safety is important to our South County HVAC company.


Weis’ team of highly-qualified, local HVAC contractors in South County, MO, guarantee affordable, timely, no-hassle HVAC repair and installation. Let Weis Heating and Cooling know how we can help. Request service now.

Contact Your South County HVAC Contractor Now

As you can see, Weis is one of the top HVAC companies in South County, MO. We provide homeowners with HVAC maintenance, installation, and repair while keeping service as a priority. Contact Weis Comfort Systems now for additional information about our South County HVAC contractors and services.