O'Fallon, IL

HVAC Contractors in O'Fallon, IL

HVAC Contractors in O'Fallon, IL. Weis Heating and Cooling is a leader in HVAC repair in the greater St. Louis area. When you choose us for furnace or AC maintenance and installation, you're picking a company that cares. The O'Fallon, IL, HVAC contractors at Weis Comfort Systems understand how challenging it can be to deal with residential and commercial HVAC units. If your home's HVAC system isn't operating optimally or you are worried if it'll struggle through winter and summer, Weis' professionally trained HVAC repair technicians in O'Fallon will identify the source of the problem. It is our job to make life easy. Warm in the summer, cool in the winter. Request service today for a quote.

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 636-343-8440.

  • Emergency Service

    For fixing HVAC problems fast $25 off
    • Trained, certified techs
    • Guaranteed quality service
    • Repair warranty
    • Same-day service available
    Claim Offer
  • AC + Furnace

    Great for upgrading systems $150 / month
    • New heating system
    • New AC system
    • New water heater
    • Free 2-year maintenance
    Claim Offer
  • Air Humidifier

    Great Aprilaire Deal $50 off
    • Top-tier brand
    • Guaranteed quality service
    • Energy efficient
    • Fast installation time
    Claim Offer

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HVAC Contractors in O'Fallon, IL

Our HVAC contractors are committed to making sure that our clients are satisfied with our services in O'Fallon, and promise to keep your home's HVAC in optimal shape for as long as possible. There are a lot of questions we are asked every day, such as:

Weis offers maintenance plans to help homeowners save on expensive repairs. It's important to have your heating and cooling checked every season. Weis' HVAC contractors in O'Fallon, IL, have been a leading choice for residents for close to 8 decades. We provide hassle-free, yet affordable to control the temperature in your home and ensuring that your home is adequately heated and protected from the fall/winter chill. Efficiency is key to comfortable living. For more information about our services in O'Fallon, or to get a free quote, call 618-233-3039 (Illinois) or 636-343-8440 (Missouri) today.

Are You Looking for a Local HVAC Contractor?

Weis' HVAC specialists in O'Fallon, IL, offer emergency services. It's important that homeowners find a trustworthy and well-reviewed HVAC provider that offers 24/7 service and the results you are expecting. We service a variety of brands and products, including Lennox, Daikin, Water Furnace, Aprilaire, and others. We also offer competitive financing plans to help business and homeowners.

Whether you're looking for AC maintenance, a checkup, boiler repair, or even air filtration, Weis Comfort System's O'Fallon, IL, HVAC Contractors have your back. There are several different types of rebates you can receive for in O'Fallon. Feel free to contact us now for more information.

Our O'Fallon HVAC Technicians know how costly it is to purchase and install a new heating and cooling system. Whether it's installation costs and the cost of the unit, the price tag varies dramatically. That's why Weis' technicians apply decades of experience to increase the lifespan and capabilities of your systems and save you money at the same time. Health and Safety is a priority at Weis Comfort Systems, and we can handle carbon monoxide, allergen control, and air filters. For more information on our HVAC contractors in O'Fallon, IL, and how Weis Comfort Systems can protect your home, request a free quote today!

Maintenance

Starting at $170
  • First System: $170
  • Additional Systems: Call Us
Get Started

Furnace Tune-Up

Starting at $95
  • First Furnace: $95
  • Second Furnace: Call Us
Get Started

Furnace Repair

Starting at $$$
  • Flat Rate Pricing
  • Service fee included
Get Started

HVAC Repair and Installation Contractors in O'Fallon, IL

When you purchase a high-quality and efficient HVAC system from Weis Heating and Cooling, our services include personalized repair, installation, and maintenance. Our O'Fallon, IL, HVAC contractors know that every home has its own specific heating and cooling requirements, and we ensure that your home's HVAC is operating at its optimal capacity for as long as possible.

HVAC Maintenance Plans in O'Fallon, IL, Include:

  • Thermostat Settings Check to ensure that your home's heating system keeps you comfortable during the harshest fall/winter conditions, and saves energy while doing so.
  • Tightening of Electrical Connections and measuring voltage and current on motors. Defective electrical connections can result in unsafe operation of your home's HVAC system and decrease the life of essential components.
  • Lubrication. Non-maintained parts can lead to friction in motors and increase the level of electricity you use, which can cause wear-and-tear on your system and higher energy use.
  • Check and Inspect the Condensation Drain in your central air conditioner, heating system, and/or heat pump (when in cooling mode). A clogged furnace drain can cause water damage in homes and increase indoor humidity levels.
  • Check Controls of the Furnace to ensure proper operation. This includes testing the starting cycle of the furnace to make sure that it starts, works correctly, and shuts off properly.
  • Check All Gas (or oil) Connections. Our HVAC technicians in O'Fallon include checking the gas pressure, burner combustion, and heat exchanger on your furnace to ensure that your furnace is in optimal shape.

HVAC Contractors Near Me

Weis Comfort Systems has provided high-quality heating and cooling services to O'Fallon homeowners for more than 8 decades. Our HVAC contractors in O'Fallon are of the highest quality, and because our company only hires experienced and knowledgeable technicians, our selection of available heating and cooling services in O'Fallon is continually expanding. Here are some of the past reviews of our furnace repair services in O'Fallon, IL.

Dedicated Service

Weis Comfort Systems is committed to making sure that our customers are satisfied with our repair, maintenance, and installation services. Weis' technicians undergo continual training, education, and safety certification to guarantee that our contractor services in O'Fallon are commiserate to the industry's most state-of-the-art and efficient practices, products, and security.

Flexible Payment

Our HVAC contractors in O'Fallon are accessible yet affordable. Our services can be paid for with many different payment options, including Visa, Mastercard, cash, checks, & financing. If you need help affording repairs services in O'Fallon, keep in mind our pricing and financing resources.

Commitment to Safety

Our top priority at Weis Comfort Systems is to make sure that our customers are happpy. Our technicians are required to undergo regular safety and re-certification courses to make sure that our services are current with industry trends and of the highest quality.

Simple Satisfaction

Our HVAC services in O'Fallon meets licensing and insurance requirements. Weis Heating and Cooling has been trusted by local homeowners and business owners for years, and are looking forward to satisfying customers for years to come.

Contact Weis Today to Talk to an HVAC Contractor in O'Fallon, IL

For more information on our services in, call 618-233-3039 (Illinois) or 636-343-8440 (Missouri) today for a free repair or installation quote, or schedule a furnace installation in O'Fallon, IL. It's our mission to deliver affordable and effective HVAC repair to home and business owners. Our O'Fallon, IL, HVAC contractors are here to help.