HVAC Companies in Mehlville. For nearly a century, Weis Heating and Cooling, an experienced Mehlville, MO HVAC company, has brought clients high quality and affordable heating and cooling repair services. Our HVAC contractors utilize industry-leading practices and top brands to optimize heating, vacuum, and air conditioning units’ reliability and efficiency.

As one of the leading HVAC companies in Mehlville, MO, Weis Heating and Cooling prides itself on high-end service in a number of areas. Mehlville HVAC repair requires trained professionals with the right tools, experience, and commitment to safety. Providing Mehlville homeowners and businesses with unbeatable pricing and quality work, Weis Comfort Systems’ services include:

Offering all of these services and others, Weis Comfort System is one of the most customer-friendly HVAC companies in Mehlville, MO. We will explore more about our services and capabilities on this page. As always, please contact us for more info.

HVAC Companies in Mehlville, MO

For people who are Mehlville property owners, it’s important 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 clients. Another reason Mehlville property owners choose Weis Heating and Cooling is our flexible short- and long-term financing options.

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


Mehlville HVAC Companies like Weis understand how difficult it is for some homeowners to manage HVAC repairs. Below you will find a maintenance checklist to provide you with a handful of go-to checks and tasks to keep your heating, cooling, and other systems functional:

  • Check thermostat to ensure the cooling and heating system stays at a comfortable and reasonable 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 kick on at set times to lower energy usage.
  • Check all electrical connections. You should also measure currents and voltages of a system’s motors. Bad electrical connections can cause electrical fires, poor efficiency, and unsafe operation. Mehlville 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 may result in increased workload and further reduces a system’s efficiency. You can always contact Weis for additional information about HVAC maintenance in Mehlville.
  • Check the condensate line. Your air conditioner unit needs to manage water. Ask an AC contracting company about this step or look at these guidelines on American Home Shield.

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

We recommend property and home owners to schedule seasonal HVAC maintenance checks to avoid serious issues. If you are looking for HVAC companies in Mehlville, MO, give us a call. (636) 266-2290

Mehlville, MO, HVAC Companies | Why Choose Weis?

For Mehlville HVAC companies, reputation is essential. The expert Mehlville HVAC contractors at Weis Heating and Cooling have proven their work ethic over the years as a top choice for home and business owners needing HVAC repair and maintenance. You can trust 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 handful of the goals we follow to ensure Weis is your Mehlville HVAC contractor of choice:


A leading Mehlville HVAC repair company, Weis Heating and Cooling understands the value of quality service. We want to provide the best in the business including certified HVAC contractors, efficient and safe brands, and no hassle results.


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


Weis utilizes 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 a cornerstone of our Mehlville HVAC company.


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

Contact Your Mehlville HVAC Contractor Today

As customers come to find out, Weis Comfort Systems is one of the top HVAC companies in Mehlville, MO. We provide homeowners with HVAC maintenance, installation, and repair while keeping service as a priority. Contact Weis Comfort Systems today for more info about our Mehlville HVAC contractors and services.