Affton, MO, HVAC Companies & Repair


HVAC Companies in Affton. For almost an entire century, Weis Heating and Cooling, an experienced Affton, MO HVAC company, has offered clients 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 Affton, MO, Weis Comfort Systems prides itself on high-end service in a variety of areas. Affton HVAC repair necessitates trained professionals with the right tools, experience, and commitment to safety. Providing Affton businesses and homeowners with customer-preferred pricing and quality work, our services include:

Providing all of these services and others, Weis Comfort System is one of the most well-rounded HVAC companies in Affton, MO. We’ll discuss more about our capabilities and services further down this page. As always, feel free to contact us for additional information.

HVAC Companies in Affton, MO

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

Weis Comfort Systems is willing to assist replace, maintain, or upgrade your HVAC systems. Our staff are trained, factory-certified professionals that answer any questions you might have about Weis Comfort Systems HVAC repair and installation services. Get additional information and a service quote today.


Affton HVAC Companies like Weis Heating and Cooling understand how challenging 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 heating, cooling, and other systems working:

  • Check thermostat settings to ensure the cooling and heating system stays at a reasonable and comfortable level. Homeowners can save money by investing in automated thermostats to keep their homes warm in the winter and cool in the summer, and even kick on at set times to lower energy consumption.
  • Tighten all electrical connections. You should also measure currents and voltages of a system’s motors. Bad electrical connections can result in electrical fires, poor efficiency, and unsafe operation. Affton HVAC companies like Weis point out that poorly-functioning equipment reduces a systems’ life expectancy. Also check all of the system’s controls and oil/gas connections.
  • Lubricate all moving parts. “Dry” parts lead to friction and rust. This usually results in increased workload and further reduces a system’s efficiency. Call Weis Heating and Cooling for more information about HVAC maintenance in Affton.
  • Inspect the condensate line. Your air conditioner unit handles water. Ask your AC contracting company about this step 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 Affton, is here to help clients maintain HVAC systems to improve efficiency, reduce costs, and increase longevity. After all, who wants to deal with a heating or cooling issue in the middle of summer or winter? Call Weis to learn more or request service.

Weis Comfort System recommends property and home owners to schedule seasonal HVAC maintenance checkups to bypass serious issues. If you are looking for HVAC companies in Affton, MO, give us a call. For Missouri (636) 343-8440 and Illinois (618) 233-3039.

Affton, MO HVAC Companies | Why Choose Weis?

For Affton HVAC companies, reputation is everything. The expert Affton HVAC contractors at Weis have proven their work ethic over the years as the best choice for home and business owners needing 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 we are your Affton HVAC company of choice:


A leading Affton HVAC repair contractor, Weis understands the importance of quality service. We hope to provide the best we can including certified HVAC contractors, safe and efficient brands, and no hassle work.


Weis Comfort Systems is well aware of financial constraints put on business and home owners. Weis accepts major credit cards (Mastercard, Visa, etc.), checks, and cash. Learn more about our 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 products, practices, and safety measures in addition to hiring methods that ensure high-quality HVAC contractors with experience, solid backgrounds, and other skills. Safety is important to our Affton HVAC company.


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

Contact Your Affton HVAC Contractor Now

As you now know, Weis is one of the top HVAC companies in Affton, MO. We provide homeowners with HVAC repair, maintenance, and installation while keeping service in mind. Contact Weis Comfort Systems today for additional information about our Affton HVAC contractors and services.



In our effort to prove our commitment to customer satisfaction, the HVAC contractors of Weis Comfort Systems undergo continual training, education, and safety courses to ensure we provide our clients with the industry’s most current and efficient practices, products, and security.


We accept a wide range of payment options, including Visa, Mastercard, cash, checks, & financing. If you are in need of additional funding for furnace, air conditioning, or ventilation repair or installation services, please visit our pricing and financing page.


We have paired state-of-the-art products, safety, and practices with thorough hiring methods to ensure that our team of HVAC contractors have the experience, background, and skill set to accurately repair, install and maintain comfort systems throughout the St Louis area.


Weis Comfort Systems is licensed and insured, and our team of expert technicians performs HVAC repair, maintenance, and installation with high detail to ensure that our AC, furnace, and ventilation services are up to code and built to last.

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