Chesterfield, MO, HVAC Companies & Repair

HVAC Companies in Chesterfield. For almost an entire century, Weis Heating and Cooling, a professional Chesterfield, MO HVAC company, has provided customers excellent and affordable heating and cooling repair services. Weis' HVAC contractors combine industry-leading practices and brands to optimize heating, vacuum, and air conditioning units' reliability and efficiency.

As one of the preferred HVAC companies in Chesterfield, MO, Weis delivers high-end service in a variety of areas. Chesterfield HVAC repair necessitates trained professionals with the right tools, experience, and commitment to safety. Providing Chesterfield businesses and homeowners with unbeatable pricing and quality work, Weis Heating and Cooling's services include:

With all of these services and others, Weis Heating and Cooling is one of the most customer-friendly HVAC companies in Chesterfield, MO. We'll talk more about our services and capabilities throughout this page. As always, feel free to contact us for more information.

HVAC Companies in Chesterfield, MO

For those who are Chesterfield business or home owners, it's essential to have an experienced HVAC company on hand. Weis Heating and Cooling is a flexible, local, and convenient HVAC repair and installation company that serves Missouri and Illinois clients. Another reason Chesterfield property owners choose Weis Heating and Cooling is our flexible long- and short-term financing options.

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


Chesterfield HVAC Companies like Weis Comfort Systems know how challenging it may be for some homeowners to manage HVAC repairs. Below you will find a maintenance checklist to provide you with a handful of go-to tasks and checks to keep your heating, cooling, and other systems working:

  • Check thermostat to ensure your cooling and heating system stays at a reasonable and comfortable level. Property owners can cut down costs by investing in digital thermostats to keep their homes cool in the summer and warm in the winter, and even turn on at specific times to lower energy consumption.
  • Check electrical connections. You should also measure currents and voltages of a system's motors. Bad electrical connections are known to cause unsafe operation, poor efficiency, and even electrical fires. Chesterfield HVAC companies like Weis Comfort Systems point out that poorly-functioning equipment lowers a systems' performance expectancy. Also check all of the system's oil/gas connections and controls.
  • Lubricate moving components. "Dry" parts lead to friction and rust. This may result in increased workload and further decreases a system's efficiency. Go ahead and call Weis Heating and Cooling for more information about HVAC maintenance in Chesterfield.
  • Check the condensate line. Your AC unit handles water. Ask an AC contracting company about this step or look at these tips on American Home Shield.

It is important to monitor and care for your heating and cooling systems. Weis, one of the top HVAC companies in Chesterfield, is here to help customers maintain these 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 summer or winter? Call us to learn more and request service.

We recommend home and property owners to schedule seasonal HVAC maintenance checkups to bypass serious problems. If you are looking for HVAC companies in Chesterfield, MO, give us a call. (636) 202-0073

Chesterfield, MO, HVAC Companies | Why Choose Weis?

For Chesterfield HVAC companies, reputation is important. The expert Chesterfield HVAC contractors at Weis Heating and Cooling have proven their dedication to service in the past decades as a top choice for business and home owners needing HVAC repair and maintenance. You can trust us to protect your family and home's HVAC interests. Read 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 we are your Chesterfield HVAC contractor of choice:


A leading Chesterfield HVAC repair company, Weis Comfort Systems understands the value of quality service. We hope to provide the best in the business including highly-trained HVAC contractors, safe and efficient equipment, and no hassle results.


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


Weis relies on state-of-the-art products, practices, and safety measures in conjunction with hiring methods that ensure high-quality HVAC contractors with experience, solid backgrounds, and other skills. Safety is a cornerstone of our Chesterfield HVAC company.


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

Contact Your Chesterfield HVAC Contractor Today

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