#1 Ozaukee County Trusted Heating And Cooling Company
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.
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Heating and Cooling in Ozaukee County

When it comes to maintaining home comfort in Port Washington, Saukville, Grafton, Cedarburg, Mequon, Thiensville and all of Ozaukee County, trust the Thielmann Group. With our fast, reliable HVAC repair and service, same-day appointments, and dedication to ensuring you never experience a frigid night, we’ve got you covered. Count on our expertise in furnace repair, heating replacement, and all your heating and cooling needs. Experience the care of a reliable, family-oriented community partner you can rely on for all your HVAC needs.

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! 

Same-Day Service (262) 299-6197
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Our Services

Heating
Air Conditioning
Air Quality

Our Services

Heating
Air Conditioning
Air Quality
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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.

ABOUT US
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Our Reviews

See What Your Neighbors Are Saying

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Brandon A

Anytown, ST

Brandon A

Anytown, ST

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

Anytown, ST

Brandon B

Anytown, ST

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

Anytown, ST

Brandon C

Anytown, ST

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.

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