Gas Furnaces

Furnace service.

K Komfort Heating & Cooling is the leading HVAC company in Grafton, WI, for your furnace service needs. We service and repair all makes and models. If you need furnace service, we are the company to call. Our skilled technicians are qualified to solve just about any repair or installation that you throw at us.

How Much Money Can a New Furnace Save You?

Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's AFUE value and compare it to a newer, more efficient system. You can even customize it to better match your home's system for a more accurate calculation.

AFUE Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




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Historical Comparison

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** Data from U.S. Energy Information Administration
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Furnace Repair

Don’t get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of professionals is here to keep your home warm and cozy. We repair all makes and models, and we will never try to sell you a service that you don’t need. Our technicians are honest and hard working, and we’re always transparent and fair about the work we do.

Furnace Replacement

Sometimes a repair is not sufficient to fix your furnace. Sometimes a new furnace is the most cost-effective and energy-efficient way to go. We will always be honest with you about a possible furnace replacement. We value our time and your money––we don’t want to perform repairs or service on an appliance that is in need of replacement.

If you do need a furnace replacement, we know how overwhelming it can be. Here are some of the frequently asked questions about furnaces that we get from some of our Grafton, WI residents:

What Are The Different Types Of Furnaces?

Single Stage: A single-stage furnace has only one stage of operation. It can either be turned on or turned off.

Two Stage: A two-stage furnace has two settings––full and half speed. This is a more efficient way to heat and provides for better comfort, because it can move the air at a slower pace.

Variable Stage or Modulating: A variable-stage or modulating furnace modulates the speed and heat output based on the temperature outside and the desired comfort level. This furnace only works as much as you need it, making this type the most energy-efficient type of furnace.

What Is AFUE?

AFUE, or Annualized Fuel Utilization Efficiency, is a measure of furnace-heating efficiency. The higher the AFUE, the more efficient the furnace.

What Size Furnace Do I Need?

We can calculate the correct size furnace for your home. The number of BTUs, or British Thermal Units, needed to heat your home is dependent on a number of variables. Contrary to what you might think, a bigger furnace may not necessarily mean more heating power for your home. Call us at K Komfort Heating & Cooling, and we can set up an appointment to calculate the furnace size you might need.

Gas Furnace Repair in Fox Point, WI 53217

“Used Komfort Heating and Cooling for my new furnace installation 11 years ago and for heat exchanger replacement recently. Job is always well done, experienced technicians and good customer service. I recommend this vendor for your HVAC needs.”
- BA A.

Gas Furnace Maintenance in Fox Point, WI 53217

“Collin arrived on time and did all his work in an hour, and he left the place as it was. Quick and convenient!”

- Alma M.

Gas Furnace Maintenance in Grafton, WI 53024

“Collin did a great job and explained everything that needed to be done and why.”

- Perry G.

Gas Furnace Repair in Milwaukee, WI 53212

“Friendly and informative. Arrived same day and fixed everything quickly. Gave a detailed range of options and advice and was able to answer questions I had about different heating/cooling ideas in the future as my furnace is getting fairly old.”

- Tim C.

Gas Furnace Maintenance in Grafton, WI 53024

“Collin was so friendly, yet professional. He took time to explain exactly what he was doing He also walked me through the smart thermostats, both set up and directions.
Great service”

- Cindie A.

Gas Furnace Maintenance in Cedarburg, WI 53012

“Appreciate call before, on time and very courteous young man”

- Lori O.

Gas Furnace Maintenance in Cedarburg, WI 53012

“We have KKomfort out a few times a year for maintenance and we always have a great experience! They’re great at answering any questions we have and are always professional!”

- Lauren K.

Gas Furnace Maintenance in Grafton, WI 53012

“Colin was professional and responsive. He explained what he was going to do and the issue with our furnace.
I’d highly recommend Colin and the company again.”

- Suzan T.

Gas Furnace Repair in Saukville, WI 53080

“Came same day within an hour and our furnace was all fixed.”

- Nicole E.

Gas Furnace Maintenance in Whitefish Bay, WI 53217

“The furnace cleaning service was ordered by our landlord. Collin was professional and friendly and advised us on steps to be taken to maintain good furnace health / air quality in the future. We’re happy with the service and KKomfort will be on top of our list when ordering similar services.”

- Ruta P.

Need Furnace Service?

Contact the experts at K Komfort Heating & Cooling.

Call us at 262-375-0075!