HVAC Companies in Festus. For nearly 100 years, Weis Heating and Cooling, a professional Festus, MO HVAC company, has brought customers excellent and affordable heating and cooling repair services. Our HVAC contractors combine best-in-industry techniques and top brands to optimize heating, vacuum, and air conditioning units’ reliability and efficiency.

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

Offering these services and more, Weis is one of the most well-rounded HVAC companies in Festus, MO. We’ll talk more about our capabilities and services throughout this page. As always, feel free to contact us for more information.

HVAC Companies in Festus, MO

For people who are Festus property owners, it is essential to have a seasoned HVAC contractor on hand. Weis Heating and Cooling is a flexible, local, and convenient HVAC repair and installation company that services Missouri and Illinois customers. Another reason Festus property owners prefer Weis is our flexible short- and long-term financing options.

Weis is ready and willing to assist replace, maintain, or upgrade your HVAC systems. Our staff are trained, factory-certified professionals that can answer any questions you may have about Weis Heating and Cooling’s HVAC repair and installation services. Request more info and a service quote today.


Festus HVAC Companies like Weis Comfort Systems understand how challenging it may be for some homeowners to handle HVAC repairs. Here is our maintenance checklist to give you with a handful of go-to tasks and checks to keep your heating, cooling, and other systems functional:

  • Check thermostat settings to ensure your HVAC system stays at a comfortable and reasonable level. Homeowners can reduce power bills by investing in digital thermostats to keep their homes cool in the summer and warm in the winter, and even kick on at set times to lower energy usage.
  • Check electrical connections. You should also measure voltages and currents of a system’s motors. Bad electrical connections are known to cause unsafe operation, poor efficiency, and even electrical fires. Festus HVAC contractors like Weis note 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 cause friction and rust. This usually results in increased workload and further decreases your system’s efficiency. Call Weis Comfort Systems for more information about HVAC maintenance in Festus.
  • Check the condensate line. Your AC unit has to handle water. Ask your AC contracting company about this process or look at these guidelines on American Home Shield.

It’s important to monitor and care for your heating and cooling systems. Weis Comfort Systems, one of the top HVAC companies in Festus, is here to help homeowners maintain HVAC systems to improve efficiency, reduce costs, and increase longevity. Besides, who wants to encounter an HVAC problem in the middle of winter or summer? Call Weis to learn more or request service.

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

Festus, MO, HVAC Companies | Why Choose Weis?

For Festus HVAC companies, reputation is important. The expert Festus HVAC contractors at Weis Comfort Systems have proven their quality in the past decades as the best choice for home and business owners in need of HVAC repair and maintenance. You can count on us to protect your home and family’s HVAC interests. Learn more about Weis’ past service in these responses and HVAC contractor reviews. Below you can find a few of the goals we follow to make sure Weis is your Festus HVAC company of choice:


A leading Festus HVAC repair contractor, Weis Comfort Systems understands the importance of quality service. We strive to provide the best we can including certified HVAC contractors, safe and efficient equipment, and no hassle results.


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


Weis utilizes state-of-the-art products, practices, and safety measures in addition to hiring methods that ensure high-quality HVAC contractors with excellent backgrounds, skills, and years of experience. Safety is a cornerstone of our Festus HVAC company.


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

Contact Your Festus HVAC Contractor Today

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