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Every resident in Wisconsin knows staying warm during the winter is top priority. With our usually high snowfalls, freezing blizzards and subzero temperatures, the winter months in the Midwest can be unforgiving. Furnaces are the most popular HVAC system for Wisconsin residents due to their affordability, quick temperature response, and inability to freeze during the brutal Wisconsin winters, unlike boilers. Our Hartlaub HVAC specialists have the skills to ensure your furnace is ready for the cold winter months.

SIGNS YOUR FURNACE NEEDS TO BE REPAIRED OR REPLACEDFurnace system repair, replacement, retrofitting in Milwaukee, WI

  • Your system is 20+ years old.
  • Your energy bills keep going up.
  • You notice more dust, dander and dirt building up in your home.
  • You’re having humidity problems inside your home.
  • The temperature is not consistent throughout your home.
  • The furnace is unusually loud.
  • The furnace has visible cracks or signs of rust on the system.



Our HVAC professionals also provide regular maintenance for your HVAC system. Routine maintenance for your heating system includes:

  • Checking the combustion chamber for cracks and deterioration
  • Removing dirt, dust and corrosion from the furnace
  • Changing the furnace’s oil
  • Checking the vent connection pipe and chimney
  • Checking the heat exchanger – a faulty heat exchanger could lead to a fire hazard
  • Testing for carbon monoxide
  • Adjusting blower control and supply-air temperatures
  • Sealing the connections between the furnace and main ducts

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Retrofitting may also be a more economical solution for your heating system. Instead of replacing your current system with a brand new one, our technicians can offer to retrofit your existing system with upgraded thermostats and technology. People commonly retrofit HVAC systems to use a better fuel source, like electricity instead of natural gas. Retrofitting can make your heating system more efficient and cut down on energy usage – this means more money saved for you.


Energy-Efficient Gas Furnaces for Your Wisconsin Home or Commercial Building

When you need a new furnace installed at your southeast Wisconsin home or commercial building, you want to make sure it’s not only going to work, but that it’s also affordable and energy-efficient. In Wisconsin homes, all furnaces are required to have an AFUE (Annual Fuel Utilization Efficiency) rating of 78% or higher, meaning at least 78% of the energy produced by your furnace has to be converted into heat.

Furnaces can vary in efficiency, and they can range from:

  • Low Efficiency (78% AFUE rating)
  • Standard/Mid Efficiency (80% to 83% AFUE rating)
  • High Efficiency (95% to 98% AFUE rating)

Make sure you get the very best furnace for your home that’s still within your budget. Talk to one of our experts today to learn more about which furnace is best for you.


Gas vs. Electric—Choosing the Best Furnace for Your Wisconsin Home

When deciding on a new furnace, many homeowners need to weigh the pros and cons of a gas furnace vs an electric furnace. Electric has the benefit of being more environmentally-friendly than gas furnaces along with lower energy bills. Gas furnaces, however, are more powerful than electric ones, and have the ability to transfer heat to other parts of the house more efficiently. They are also generally better at warming up houses in subzero temperatures, like the harsh Wisconsin winters.

The HVAC professionals at Hartlaub will help you replace, install, retrofit, repair and maintain your home’s HVAC furnace system at the most affordable price. Call us today to get a quote for our services.


All of Our Heating System Services

We service, install, replace and retrofit all the most common heating systems in Wisconsin including: 



Hartlaub’s professional HVAC technicians will make sure your furnace is installed, repaired and maintained properly so you can get the best performance it has to offer. You won’t find another company that cares more about the customer experience than Hartlaub. Our technicians go above and beyond to make sure each project is completed without a hitch. We introduce ourselves ahead of time by sending a technician profile via text. We also send departure and arrival notifications, so you aren’t left waiting to answer the door. Our technicians have no problem swinging by the store to pick up some coffee, water or whatever else you need while we work on your HVAC system. Hartlaub is an experience, not just a business. At Hartlaub, we do more

Contact the New Berlin furnace repair experts at Hartlaub today.

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