St. Louis, MO, HVAC Service.

St. Louis, MO, HVAC Service. Weis Comfort Systems offers licensed heating and repair service to St. Louis home and business owners. We specialize in HVAC services including AC repair and install, heaters, boilers, and air filtration. We carry the best products and brands on the market. Call us now for 24/7 service or schedule an HVAC tune-up. Weis is your number one St. Louis, MO, HVAC solution.


Weis’ professional St. Louis HVAC repair services are here to help you keep functioning and efficient heating and cooling systems. We’ve served St. Louis customers for upwards of 80 years and continue to offer exceptional HVAC installation, maintenance, and repair. Weis offers rebates and coupons, financing, maintenance plans, and other HVAC services in St. Louis. See Weis’ HVAC reviews to learn more about our success.

Dedicated St. Louis HVAC Service

When winter comes around and your heater goes out, you may regret not getting a full HVAC check-up. We’re a company dedicated to helping home and business owners prevent heating and cooling problems and maintain an efficient system. Keeping your St. Louis HVAC healthy reduces power bills and ensures that your home is cool in the summer and cozy when it’s colder.

We’re more than an HVAC provider. Since 1974, we’ve provided St. Louis customers with exceptional service. When you contact Weis Comfort Systems, you get the best in the industry. We can prove it with our customer reviews.

St. Louis Furnace Installation and Repair

Furnace Installation and Repair in St. Louis is essential for homeowners. Weis’ factory-certified techs are prepared for emergency heating service. Weis can provide a free installation and repair quote today. Just visit the service request page or give us a call now.

Weis checks thermostat settings, electrical connections, the condensate drain, and other parts of your furnace to ensure they run properly and keep you and your family warm during the colder months. A well-maintained furnace or heater can save you hundreds of dollars. After all, you don’t want your furnace to go out when it’s snowing and cold outside.

Weis services a number of brands and products, including Lennox, Daikin, Aprilaire, Arzel, WaterFurnace, and others.

Boiler Repair and Installation in St. Louis, MO

For St. Louis residents and homeowners, a malfunctioning boiler can be catastrophic. Homes that are decades old in St. Louis may rely on boilers as the main source of heat. The expert boiler repair and installation techs in St. Louis at Weis Comfort Systems can help. We offer competitive pricing and financing to ensure your home is efficient and safe. Please get a quote for HVAC service and repair in St. Louis, MO, today.

St. Louis AC Installation and Repair

Need air conditioning installation in St. Louis? Has your AC gone out? The pro AC techs at Weis Heating and Cooling offer St. Louis homeowners with top-notch air conditioning repair and maintenance. Our St. Louis AC contractors are here 24/7 for emergency installation and repair. Weis utilizes cutting edge technology and you can expect the best regarding AC repair and installation. Weis offers seasonal and affordable service to St. Louis business and home owners.

Emergency HVAC Service

Weis Comfort Systems has served the Greater St. Louis area for more than 80 years. We service and install ALL makes and models of furnaces, air conditioners, and HVAC equipment. We also offer available same-day service to get your furnace or air conditioner running ASAP.

Please view our current specials for 2018 and details about our company by watching our latest video.

HVAC Service Near You

Weis’ preventative HVAC maintenance plans help St. Louis homeowners and customers keep their heating and cooling systems in proper working order. There’s a lot of things you can do to make sure your HVAC systems runs smoothly. Some of these include:

  • Cleaning your evaporators and air conditioner coils.
  • Checking your central air’s refrigerant level.
  • Adjusting blower components to improve airflow.
  • Checking gas or oil pressure, connections, burner combustion, and heat exchange.
  • Updating your thermostats.
  • Lubricate parts and tighten all electrical connections.
  • Inspect the condensate drains of your AC, furnace, or heat pump.

Signing up for a maintenance plan can save you hundreds per year. We’re dedicated to keeping your HVAC system maintained to ensure efficiency and safety.

We also believe in the health and safety of your St. Louis home. We offer a broad variety of products to ensure your family is safe. This includes carbon monoxide detectors, dust filters, air purifiers, filtration units, and other products. We also have short- and long-term financing options to help St. Louis residents with HVAC service. Get in touch with us for more information about financing options.

Weis prides itself on the following values:

  • Offering dedicated service for more than 80 years to St. Louis homeowners with HVAC quality service.
  • Allowing homeowners to pay via cash, checks, or using our flexible financing options.
  • Servicing and installing the the industry’s best technology and products. This includes brands like Daikin, Lennox, Water Furnace, Arzel, and others.
  • Guaranteed headache-free HVAC maintenance for St. Louis customers. We’re committed to solving your HVAC issues quick and efficiently.
  • We also provide practical advice and suggestions to homeowners to avoid future problems with their HVAC systems.
  • A dedication to HVAC safety.

Contact Your St. Louis HVAC Pros Today

When you need HVAC service or installation in St. Louis, MO, go ahead and request service today. Weis offers free quotes, too, and is dedicated to making sure your HVAC system stays in optimal condition. Let us know how our St. Louis HVAC pros can help.

  • Heating and Cooling

Special Offers

Weis Comfort Systems offers multiple specials and discounts every month for our services. These special offers make Weis Comfort one of the most affordable choices in St Louis and Illinois for getting your AC unit or furnace repaired/replaced. Please see below for our latest offers and contact us at (636) 266-2290

Weis service vehicles

Serving St Louis and Illinois for over 80 Years

Richard Weis returned from WWII asked for the keys from his dad and re-opened the shop as Weis Heating Company. He had a process and a plan to economically install central heating in all new homes with the new blower-driven gas furnaces. The housing boom that followed the war allowed the company to expand rapidly.

Nearly 80 years later, the current Weis generation continues the tradition of providing a quality, affordable HVAC service for our customers. At Weis, "When you live and sleep comfortably, so do we."

Call (636) 266-2290 to Get Started

Let’s Get You Comfortable

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