Furnace Repair South County

Furnace Repair South County

+ Our History + Products + Maintenance + Request Quote

Furnace Repair & Replacement Services in South County

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 refuses to operate to its highest capacity or isn't working at all, Weis' team of factory-certified and trained servicemen will find the source of the problem, we promise. We provide restoration and installation services for industry-proven furnace brands that guarantee the comfort and happiness of our customers for years to come.

Weis Comfort Systems has been trusted for its elite furnace repair and installation services for South County for over 80 years. We make it easy and budget friendly to get your home to the level of comfort and heat you desire. Get a free repair or installation quote today by visiting ourservice 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 South County

Since 1927, Weis Comfort Systems has been proud to offer South County residents with an elite level of Furnace Repair Services. If your furnace isn't functioning as you want it to, or its time to replace it with modernized furnace, Weis wants to assist you. Our organization of factory-certified and trained professionals can and will assist you in managing 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 buy and install a brand new furnace system, whether it be the time involved in the installation or how much the installation may cost in labor. That's why our technicians use specialized techniques to expand the lifespan and productivity of your heating unit to save you the maximum amount of money for your heating and cooling requirements. In our endeavor to guarantee absolute satisfaction with our repairs and maintenance, we only use leading brands and products as solutions. To learn more about our furnace repair services in South County 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 South County

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

You might be wondering what exactly is involved in our Furnace Maintenance? We have several personalized maintenance plans that South County residents can select from and this is due to the fact that our specialists are aware that no two South County homes are the same 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.
Malfunctioning gas (or oil) connections are a fire hazard and can lead to health issues. 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 South County Furnace?

For South County businesses, reputation means everything, and it's even more important when you're providing services within a customers home where they have to be able to count on you with their family and their property. Weis Comfort Systems has been relied upon by South County residents for over 8 decades because the furnace repair service we provide is of the highest quality, and because we only hire proven and trusted furnace repair technicians. Here are some of the responses and reviews our clients have had to our excellent services.

Dedicated Service

In our aspiration 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 South County clients with the industry's most up-to-date and efficient practices, products, and security.

Flexible Payment

We offer lots of payment options, including Visa, Mastercard, cash, checks, & financing. If you require additional funding for furnace, air conditioning, or ventilation repair or installation services, please visit our pricing and financing page.

Commitment to Safety

We trust in our state-of-the-art products, safety, and practices with in-depth and thorough hiring processes 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

We are fully licensed and insured, and our team of incredible specialists performs furnace repair, maintenance, and installation with first rate detail to ensure that our furnace, AC, and ventilation services are up to code and built to last.

Furnace Installation South County

Weis Comfort Systems also provides Furnace Installation in South County. When your old furnace cant be fixed and is no longer operating the way it is suppose to, we can gauge the heating system you have and the needs of your home that you have to have to guarantee that you're paired with the optimal furnace that will meet all of your heating and cooling requirements. residence, our factory-certified and trained professionals can install the furnace for you.