Financing Available

24/7 Emergency Service Available

New Berlin






Menomonee Falls


Click To Call

New Berlin




Menomonee Falls




Residential Services by Thielmann

Thielmann & Son can handle all of your residential heating and cooling needs.  We offer quality equipment that is serviced and installed by experts.   Whether your equipment needs repair or it is time to replace that old furnace or air conditioner, our goal at Thielmann & Son is to make your home as comfortable as possible.  Our team of highly professional technicians will help get your existing system performing at peak efficiency and our experienced installers will get your new equipment installed with great attention paid to every detail.

Maintenance / Tune-Ups

Having annual maintenance performed on your furnace or air conditioner will help to prolong its life and its efficiency.

Having your ducts cleaned every few years is also an important step in maintaining your equipment.

Equipment Repair

Whether it is the hottest July day or the coldest January morning rest assured that whenever your furnace or air conditioner stops working we have service technicians available 24 hours a day 7 day a week to get your system back up and running.

Equipment Replacement

When the day comes that your furnace or air conditioner stops working and needs to be replaced let us help guide you through the replacement process.  One thing is for certain, when it comes to furnaces and air conditioners, there are a lot of options out there. Our experienced comfort advisors can assist you in choosing the right option for you, your family and your wallet.

Technology/ Upgrades

We live in a world that is full of new and exciting technology that seems to change almost daily.  Let the experts at Thielmann & Son explain how the latest technology can give you peace of mind and maybe even lower your energy bills.