Clayton, MO, HVAC Contractor.

Clayton, MO, HVAC Contractor. Weis provides professional heating and repair service to Clayton residents and business owners. Weis specializes in air filtration, AC repair, heaters and boilers, and other HVAC services. Weis Comfort Systems carries the best brands and products in the industry. Call us today for 24/7 emergency service or schedule an HVAC tune-up. Weis Heating and Cooling is your go-to Clayton, MO, HVAC solution.


Our expert Clayton HVAC services are here to help you keep functioning and efficient heating and cooling systems. Weis has served Clayton customers for upwards of 8 decades and continue to offer exceptional HVAC installation, maintenance, and repair. Weis offers rebates and coupons, financing, maintenance plans, and other HVAC services in Clayton. View Weis’ HVAC reviews to learn more about our history.

Dedicated Clayton HVAC Maintenance

When winter comes around and your heater goes out, you’ll probably regret not having a full HVAC tune-up. We are an HVAC company dedicated to helping clients prevent heating and cooling issues and maintain an efficient system. Keeping your Clayton HVAC healthy lowers utility bills and ensures that your home is warm when it’s cold and cool in the summer.

Weis is more than an HVAC service. Since 1974, we’ve offered Clayton customers with proven, exceptional service. When you call Weis Heating and Cooling, expect the best. Let us prove it with these customer reviews.

Clayton Furnace Repair and Installation

Furnace Installation and Repair in Clayton is essential for home and business owners. Weis’ factory-certified techs are ready for emergency heating service. Weis Comfort Systems can provide a free installation and repair quote today. Visit the service request page or give us a call for more info.

Weis Comfort Systems checks thermostat settings, electrical connections, the condensate drain, and various other components of your furnace to make sure they run properly and keep you warm in the winter. A well-maintained heater or furnace can save you hundreds of dollars. After all, you wouldn’t want your furnace to go out when it’s snowing and cold outside.

We service a number of brands and products, including Lennox, Daikin, Aprilaire, Arzel, WaterFurnace, and others.

Boiler Installation and Repair in Clayton, MO

For Clayton homeowners and residents, a malfunctioning boiler can be catastrophic. Older properties in Clayton might rely on boilers as a heat source. The experienced boiler installation and repair techs in Clayton at Weis can help. We offer competitive financing to ensure your home is safe and efficient. Feel free to request service for HVAC service in Clayton, MO, today.

Clayton AC Repair and Installation

Need AC repair in Clayton? Has your AC gone out? The expert heating and cooling technicians at Weis Heating and Cooling provide Clayton homeowners with top-notch air conditioning repair and maintenance. Our Clayton AC contractors are here 24/7 for emergency repair and installation. Weis uses cutting edge technology and you can expect the best in terms of AC repair and installation. We offer seasonal and affordable service to Clayton 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

Our preventative HVAC maintenance plans help Clayton homeowners and customers keep their heating and cooling systems lean and efficient. There’s a lot of things you can do to make sure your HVAC systems runs smoothly. These include:

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

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

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

Weis prides itself on these values:

  • Offering dedicated service since 1974 to Clayton homeowners with HVAC quality service.
  • Allowing customers to pay via cash, checks, or with our flexible financing alternatives.
  • Servicing and installing the the industry’s best technology and products. This includes Water Furnace, Daikin, Arzel, Lennox, and other great brands.
  • Guaranteed headache-free HVAC maintenance for Clayton customers. Weis is committed to solving your HVAC issues quick and efficiently.
  • We also provide suggestions and advice to homeowners to avoid future problems with their HVAC systems.
  • A dedication to HVAC safety.

Contact Your Clayton HVAC Experts Now

When you need HVAC service or installation in Clayton, MO, feel free to request service today. Weis offers free quotes, too, and is dedicated to keeping your HVAC systems in optimal condition. Let us know how our Clayton HVAC experts can help.

  • Air Duct Cleaning
  • Furnace Maintenance
  • Fall HVAC Maintenance
  • Air Filtration Systems
  • AC Maintenance
  • Heating and Air Conditioning
  • HVAC Contractors
  • Furnace Repair Services
  • Air Conditioning Repair
  • 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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