Furnace Repair

Furnace Repair Services in St. Louis, MO

You rely on your furnace to keep your home warm and cozy throughout the winter. When your heating system isn’t working to heat your home like it should or stops working unexpectedly, you need the best in the business to help you right away. Welsch Heating and Cooling is your go-to company for St. Louis, Missouri, furnace repair services. Our professional and experienced technicians are available to help you 24/7/265 with any furnace repairs you need. We offer emergency HVAC services to make sure your home is comfortable day or night. Schedule an appointment with Welsch today.

Signs That You Need to Repair Your Furnace

When your HVAC system stops working suddenly, you may have been wondering if there was something you could have done to prevent it. It’s important to pay attention to the signs that your furnace is struggling so you can get it fixed before you find yourself suddenly without heat.

Oftentimes, when your HVAC equipment breaks, it causes stress to other components in the system, making them more susceptible to breaking too. When you notice something is wrong, it can often be repaired quickly and affordably. However, if you wait too long, your repair needs can accumulate quickly and cause worse damage, which can result in a higher repair bill.

Strange Noises or Smells

A furnace should not produce odors, and the noise it makes should be consistent. For example, there should be no banging, grinding, or whining sounds. Call us to schedule a service call if your furnace begins to make noises.

The Unit Is Struggling to Heat the Home

A change in the efficiency of the furnace and its ability to heat your home is a sign that something is wrong. It can be something simple like a faulty thermostat or something to do with gas or electricity flow to the HVAC system.

Heating Bills Are on the Rise

When your heating bill rises, and there is no weather-related reason, your furnace may struggle to heat your home. That struggle requires more gas or electricity, which drives up the cost of heating your home or business. A service call can address the problems that the furnace has and return the unit to peak efficiency.

Poor Indoor Air Quality

Odors, fumes, dust, pet dander, and other contaminants can become airborne and cause the indoor air quality of a home or business to drop. Poor indoor air quality is a significant health risk, especially if someone in your home or one of your customers has a pulmonary health condition such as asthma. Poor indoor air quality caused by a furnace is fixable.

Poor Overall Level of Heat

If your furnace is not properly heating your home or business, it is difficult to obtain a quality ambient temperature. As a result, the home or business is uncomfortable for family or customers. In addition, you are likely still paying for the same level of heating but not getting the same level of warmth. Poor heating can be due to a faulty burner, heating element, thermostat, or blower.

Furnace Maintenance Can Reduce and Eliminate Repairs

Maintaining your furnace is the easiest way to prevent breakdowns. In addition, routine maintenance helps keep the furnace running at peak efficiency, which means you spend less money on fuel for the same level of heating.

Maintenance also catches minor issues you may overlook until they become more significant problems. For example, decreased efficiency of burners or heating elements, corrosion, and other minor issues can become major repairs. Regular furnace maintenance goes beyond checking the filters and looking at how the unit functions.

Making minor adjustments during annual maintenance checks will keep the furnace in good working order with less stress on moving parts. That process reduces the frequency of repair calls and can extend the unit’s life.

Welsch is the Premier HVAC Company in the St. Louis Area

Welsch Heating & Cooling focuses on customer service and building lifelong relationships with each of our residential and commercial clients. That set of goals is what has allowed us to continue to serve the heating and cooling needs of this community for over 125 years.

Today, Welsch Heating & Cooling offers a full range of heating and cooling services designed for business owners and homeowners alike. We focus on the prevention, repair, and installing heating and cooling systems. That means you can count on us for your furnace repair as well as your furnace installation needs.

We provide quality services for a variety of HVAC systems regardless of who installed it originally or the brand. We work throughout the greater St. Louis area to help solve HVAC problems for all of our customers. Don’t just take our word for it; read our customer reviews to see why so many people in St. Louis, Mo, trust Welsch Heating & Cooling for fast and reliable service with comprehensive and expert service.

Schedule Furnace Repair With Welsch Heating & Cooling in St. Louis, MO

For full-service furnace maintenance, repairs, or installation, call Welsch Heating & Cooling today. We offer a complete and comprehensive set of services for all makes and models of heating systems for our residential heating and commercial customers in the area. With over 125 years of service to the St. Louis community, we are your one-stop shop for heating and cooling services. Talk to us today about how we can help your home or business with additional services like air conditioning or indoor air quality. Give us a call today to make an appointment.


Our family tried 4 other company’s in St. Louis to replace old boiler and three AC units for a 4,500 sq. ft. , 100 year old home. It was a VERY complex project involving a lot of thought and creativity. The project was also completed a week before its expected...


I wanted to take a moment to express my gratitude for the outstanding service I received Monday from repairman Chris Sasse. Chris came to my house Monday morning, shortly after reporting a non-functioning thermostat. (We had no heat for 24+ hours.) He replaced the 1+ year old iComfort Wi-Fi thermostat,...

Carla H.

Welsch had been doing the maintenance on my old system, which was replaced with a new one this winter. From the service on the old to the installation on the new, I have been very happy with the quality of the work and the excellent service I get from everyone...


bought the Annual Maintenance Agreement $178.95 for 2 visits per year. The A/C and heating system was checked and filters were changed as needed.

Nicole M.

We’ve been customers of Welsch Heating and Cooling for the past 40 years. There has never been one time when their service has not been exemplary!

Debbi H.

More Reviews

Service & Emergencies: (314) 567-6347 Call Today!