Furnace Repair St. Louis

Furnace Repair St. Louis

+ Our History + Products + Maintenance + Request Quote

Furnace Repair & Replacement Services in St. Louis

Quality Service Since 1927

All furnace repair service fees are included in the cost of the repair, and furnace replacement and installation quotes are always 100% free. If your furnace isn't functioning to its fullest capacity or isn't functioning at all, Weis' team of factory-certified and trained professionals will find the source of the problem, guaranteed. We repair and install industry-tested furnace brands that guarantee the comfort and happiness of our customers for years to come.

Weis Comfort Systems has been repairing and installing furnaces in St. Louis, MO for over 8 decades. We make it easy and affordable to heat your home and live comfortably. Get a free repair or installation quote today by visiting our service request page.


Weis Comfort Systems

1591 Fenpark Dr.
Fenton, MO 63026
Hours: M-F 8:00AM – 4:30pm

Weis DeRousse

124 N. Main
Red Bud, IL 62278
Hours: M-F 8:00AM – 4:30pm

Weis Keil-Forness

Located In:
Belleville, IL 62220
Hours: M-F 8:00AM – 4:30pm

Furnace Repair St. Louis

Since 1927, Weis Comfort Systems has been honored to provide St. Louis residents with exceptional Furnace Repair Services. When your furnace isn't operating as it should be, or if you want to replace it with a new high-quality furnace, Weis can assist you. Our organization of factory-certified and trained professionals can assist you in preserving your old furnace so that when your home needs reliable comfortable heat in the late fall/winter or early spring, your heating unit will work better than ever before. We know how expensive it can be to purchase and install a brand new furnace system, whether it be the time involved in the installation or the amount of money that is spent on labor costs. That's why our professionals use specialized procedures to expand the lifespan and productivity of your heating unit to save you money on monthly bills and maintenance charges. In our endeavor to guarantee full satisfaction with our repairs and maintenance, we only provide leading brands and products as solutions. To learn more about our furnace repair services in St. Louis and what Weis Comfort Systems can do for your home heating needs, request a quote today!


Starting at $185
  • First System: $185
  • Additional Systems: Call Us
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Furnace Tune-Up

Starting at $95
  • First Furnace: $95
  • Second Furnace: Call Us
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Furnace Repair

Starting at $$$
  • Flat Rate Pricing
  • Service fee included
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Gas/Electric Furnace Repair and Maintenance in St. Louis

We have a large selection of furnaces that we offer to St. Louis residents, which means that we also service and repair a wide selection of furnaces. We offer repair services on furnace brands such as Daikin®, Lennox®, WaterFurnace® and many more!

But what exactly is involved in our Furnace Maintenance? We have several custom maintenance plans that St. Louis residents can select from and this is because our technicians understand that no two St. Louis homes are the similar in heating requirements. We have several different quality and maintenance check points in our furnace plans, take a look!

All Furnace Maintenance includes:

  • Check thermostat settings to ensure the cooling and heating system keeps you comfortable when you are home and saves energy while you are away.
  • Tighten all electrical connections and measure voltage and current on motors. Faulty electrical connections can cause unsafe operation of your system and reduce the life of major components.
  • Lubricate all moving parts. Parts that lack lubrication cause friction in motors and increases the amount of electricity you use.
  • Check and inspect the condensate drain in your central air conditioner, furnace and/or heat pump (when in cooling mode). A plugged drain can cause water damage in the house and affect indoor humidity levels.
  • Check controls of the system to ensure proper and safe operation. Check the starting cycle of the equipment to assure the system starts, operates, and shuts off properly.
  • Check all gas (or oil) connections. This includes checking the gas pressure, burner combustion, and heat exchanger.
Improperly operating gas (or oil) connections are a fire hazard and can lead to health complications. A dirty burner or cracked heat exchanger causes improper burner operation. Either can cause the equipment to function less safely and efficiently.

Why Choose Weis to Repair your St. Louis Furnace?

For St. Louis businesses, reputation means everything, and it's even more important when your providing services within a client's home where they need to be able to trust you with their family and their property. Weis Comfort Systems has been relied upon by St. Louis residents for over 80 years because the furnace repair service we offer is of an unparalleled quality, and because we only hire experienced and trusted furnace repair professionals. Here are some of the responses and reviews our clients have had to our excellent services.

Dedicated Service

In our duty to prove our commitment to customer satisfaction, the Furnace Repair Technicians of Weis Comfort Systems undergo continual training, education, and safety courses to ensure we provide our St. Louis clients with the industry's most up-to-date and efficient practices, products, and security.

Flexible Payment

We accept a wide range of payment options, including Visa, Mastercard, cash, checks, & financing. If you are in need of additional funding for furnace, air conditioning, or ventilation repair or installation services, please visit our pricing and financing page.

Commitment to Safety

We have paired state-of-the-art products, safety, and practices with thorough hiring methods to ensure that our team of furnace repairmen have the experience, background, and skill set to accurately repair, install and maintain comfort systems throughout the Greater St Louis area.

Simple Satisfaction

Weis Comfort Systems is licensed and insured, and our team of expert technicians performs furnace repair, maintenance, and installation with unmatched attention to detail to guarantee that our furnace, AC, and ventilation services are up to code and built to last.

Furnace Installation St. Louis

Weis Comfort Systems also provides Furnace Installation in St. Louis. If your old worn out furnace cant be fixed and is no longer performing efficiently, we can evaluate the heating system you have and the needs of your home that have to be met to ensure that you're paired with the correct and optimal furnace that will match all of your home heating needs. Once you've picked the unit you want for your home, our factory-certified and trained professionals can install the furnace for you.