Heating And Cooling And IAQ In Milwaukee County
Same-Day Service
Heating and cooling emergencies happen when you least expect them. Contact the professionals at The Thielmann Group to assess and fix the situation you're dealing with. We have the necessary skills and tools to fix your system so you can safely use it once again. Call the Thielmann team at (262) 299-6197 to get emergency HVAC services in Southeast Wisconsin.

Heating and Cooling and IAQ in Milwaukee County

For reliable HVAC services in Wauwatosa, West Allis, Oak Creek, Shorewood, Franklin, Fox Point, River Hills, Whitefish Bay, Greendale and all cities in Milwaukee County, count on our family-owned and trusted company since 1929. We offer new HVAC installations, furnace repairs, and tune-ups to keep your system running smoothly!

Don’t wait until your HVAC system breaks down. Contact us today at (262) 299-6197 to request our professional HVAC services and experience the difference firsthand! 

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What To Expect

Discover the Thielmann Group Difference

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

The Thielmann Group promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

The Thielmann Group promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

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Our Reviews

See What Your Neighbors Are Saying

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Brandon A

Brandon A

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer id condimentum a tortor vel. Et et nulla mauris, quam mattis tellus. Gravida morbi volutpat tristique praesent adipiscing nunc sit imperdiet. Sit mauris gravida ut rhoncus vel. Sed fermentum neque, ipsum aliquet. Venenatis purus est tincidunt sagittis

Brandon C

Brandon C

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer id condimentum a tortor vel. Et et nulla mauris, quam mattis tellus. Gravida morbi volutpat tristique praesent adipiscing nunc sit imperdiet. Sit mauris gravida ut rhoncus vel. Sed fermentum neque, ipsum aliquet. Venenatis purus est tincidunt sagittis

Brandon B

Brandon B

I've been using Thielmann Group for all my heating and air conditioning since I built my house 23 years ago. They have been great in emergency service and regular maintenance service. On time and very friendly staff. Would, and have, recommend them to anyone!

Paul K.

Paul K.

I have used Thielmann for both installation of a new furnace + A/C recently, but also an install of a ductless mini-split unit six years ago. I fully trust their brands and recommendations. I can't say enough of about this company. Every single person from administrative…

Christin C.

Christin C.