close-up of a gas furnace flame.

How Do I Know I Have a Cracked Heat Exchanger?

December 31, 2025

Our experienced furnace repair technicians will inspect and diagnose your furnace issue and resolve the concerns you are having.

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Cold Climate Heat Pumps Are HVAC Game Changers. Photo of an elderly couple enjoying a hot beverage together in their kitchen.

Cold Climate Heat Pumps Are HVAC Game Changers

December 31, 2025

If you are looking for an HVAC system that heats and cools your Mequon home, lowers energy bills, and is easy on the environment and your budget, consider an air-source heat pump. 

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Why Isn’t My Furnace Heating My Entire Home? Photo of a family of three huddled under a blanket to keep warm.

Why Isn’t My Furnace Heating My Entire Home?

November 30, 2025

If your furnace seems to be producing heat inconsistently around your Germantown home to you, you’re not alone. Many homes have varied conditions from room to room, causing spotty heating or cooling.

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HVAC technician performing maintenance on a heat pump.

4 Important Heat Pump Maintenance Tips

November 15, 2025

How often do you schedule a maintenance visit for the heat pump in your Mequon home? Taking proper care of your heating, ventilation, and air conditioning (HVAC) system is the best way to ensure it will function efficiently and reach its full service life potential. Plus, you’ll have peace of mind knowing your heat pump…

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How to Keep Warm During Extreme Cold Weather. Mature couple sat in front of a fire drinking hot chocolate from mugs.

How to Keep Warm During Extreme Cold Weather

October 31, 2025

We receive countless calls every time the temperatures drop below normal ranges, as homeowners here in Germantown encounter problems with their home’s heating system.

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HVAC Technician performing maintenance on a heat pump.

4 Important Heat Pump Maintenance Tips

October 15, 2025

We understand that you depend on your system for comfort, and that it’s our mission to help you achieve this.

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Thermostat Settings: On vs. Auto. Photo of a digital thermostat mounted on a wall with a blue light.

Thermostat Settings: On vs. Auto

September 30, 2025

We all know the difference between a thermostat’s heating and cooling temperature settings—that’s the easy part. But what’s the difference between the On and Auto fan setting? How does this small setting impact your HVAC system’s performance and energy usage in your Sussex home?

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woman adjusting thermostat, shivering while wearing a sweater.

Why Is My Heat Pump Turning On and Off Frequently?

September 15, 2025

According to the U.S. Department of Energy, proper sizing improves energy efficiency, indoor air quality, comfort, and overall system performance.

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3 Tips to Prevent AC Breakdown During a Heat Wave.  Photo of an air conditioning unit being worked on by a technician outside of a brick home.

3 Tips to Prevent AC Breakdown During a Heat Wave

August 31, 2025

An air conditioner is your lifeline during a prolonged heat wave.

This life-saving comfort system is a necessity when temperatures soar and linger in Mequon, as they have under the heat dome that has scorched across Wisconsin.

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Why Air Duct Cleaning Is Important. Professional Air Duct Cleaning.

Why Air Duct Cleaning Is Important

August 15, 2025

Just like your lungs are an important connection to the rest of your respiratory system, your home’s ductwork, or air ducts, are importantly connected to your heating, ventilation, and air conditioning (HVAC) system.

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Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!