Brand Certified
Thielmann Heating, Cooling & Plumbing
4.9(1774 reviews)
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
Business Details
17020 W National Ave, New Berlin, WI
53151, United States
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
(262) 600-3027
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
https://thielmannheating.com/?utm_source=GMB&utm_medium=local&utm_campaign=New-Berlin
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
About
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
HVAC ContractorPlumberHeating ContractorAir Conditioning ContractorEmergency PlumbersWater Heater SalesWater Heater ServiceWater Softening Equipment SupplierBoiler SupplierAir Quality Consultant
Since 1929, Thielmann Heating, Cooling & Plumbing has been Southeastern Wisconsin’s trusted choice for dependable comfort and quality service. Our experienced team provides expert heating, cooling, and plumbing solutions for homes and businesses, including the installation, repair, and maintenance of high-efficiency furnaces, air conditioners, ductless mini-splits, and indoor air quality systems. We also specialize in plumbing services such as water heater replacement, water treatment systems, and leak detection and repair.
Thielmann is committed to delivering the highest level of craftsmanship with over nine decades of experience to every job — ensuring your comfort, safety, and peace of mind year-round.
Location
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
Thielmann Heating, Cooling & Plumbing
17020 W National Ave, New Berlin, WI
53151, United States
Hours
Certified by Thielmann Heating, Cooling & Plumbing • Apr 05, 2026
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
Reviews
4.9
1,774 reviews
5 stars
1,706
4 stars
42
3 stars5
2 stars5
1 star16
- JBJ BraunMar 30, 20265.0Jeff D is an asset to your company! Very polite. Very patient with my questions. He's a keeper!
- HRHasan RazaMar 30, 20265.0Donovan S did an amazing job with our annual furnace tune up. He was professional and courteous. Highly recommend.
- MWMark W.Mar 29, 20265.0I'm doing some commercial work with these guys, they were very informative and prompt and will be booking a complicated job with them for my restroom
- DCDave CrawfordMar 24, 20265.0Todd H was very knowledgeable and made sure my furnace was working correctly and discussed a maintenance plan to avoid further issues.
- AMAnthony McLeanMar 16, 20265.0Last week my mother in-law’s heat stopped working. I called the team at Thielmann and within the next hour they showed up and had the heat back up and running in under two hours of placing the phone call. I found there same day service fee acceptable and the price to tune up and fix some items that caused the failure was great as well. They were professional and polite. I will be using Thielmann heating cooling and plumbing in the future when issues arrive. Thanks
Brand Certified Facts from Thielmann Heating, Cooling & Plumbing
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Certified April 05, 2026Yext Knowledge Graph
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