Brand Certified
Thielmann Heating, Cooling & Plumbing
5.0(461 reviews)
Certified by Thielmann Heating, Cooling & Plumbing • May 17, 2026
Business Details
105 W Commerce Blvd, Slinger, WI
53086, United States
Certified by Thielmann Heating, Cooling & Plumbing • May 17, 2026
(262) 683-5261
Certified by Thielmann Heating, Cooling & Plumbing • May 17, 2026
https://thielmannheating.com/?utm_source=GMB&utm_medium=local&utm_campaign=Slinger
Certified by Thielmann Heating, Cooling & Plumbing • May 17, 2026
About
Certified by Thielmann Heating, Cooling & Plumbing • May 17, 2026
HVAC ContractorPlumberHeating ContractorAir Conditioning ContractorBoiler SupplierWater Heater SalesWater Heater ServiceEmergency PlumbersAir Quality ConsultantWater Softening Equipment Supplier
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 • May 17, 2026
Thielmann Heating, Cooling & Plumbing
105 W Commerce Blvd, Slinger, WI
53086, United States
Hours
Certified by Thielmann Heating, Cooling & Plumbing • May 17, 2026
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
Reviews
5.0
461 reviews
5 stars
450
4 stars6
3 stars1
2 stars2
1 star2
- RPRobert PfauthMay 12, 20265.0Nick did a great job. He was punctual, polite, seemed to know his business, and answered all my questions. I can definitely recommend both him and his company. I have just one suggestion for Nick's employer: when a technician enters a person's home, it would be nice if they offered to put on shoe covers.
- MTMichael TrahanMay 7, 20265.0Excellent quick response! Great courteous techs that did a great job! Professional and great work! Will continue to use them in the future for all my HVAC needs.
- JSJessica SheahanMay 7, 20265.0Nick is a great technician. I had requested service for all the mini split heads in my home but after inspection, Nick noted that really only one needed a full break down cleaning. On top of that, the one unit that needed cleaning decided to make him work for it by not disassembling easily. Nick was very professional working on this unit while having me 4 ft away working from home on the other side of the dining room table. My house is now beautifully prepped to keep semi polar conditions for summer.
- CKCarol KnopeApr 28, 20265.0Kyle L arrived promptly within the designated appointment time to assess my malfunctioning iron curtain. I have used Theilmann many times so we knew Kyle from a previous contact. He is friendly, knowledgeable, and fully explains options. Due to the age of my iron curtain I decided to replace my unit which will be installed next week. It is so comforting to have good technicians working in your home. Thanks.
- BSBonnie SchultzApr 27, 20265.0Dan came today to service my water softener. He did a great job determining the problem and got it handled. He was very personable and explained what needed to be done. I would definitely recommend him to my friends and family.
Frequently Asked Questions About Thielmann Heating, Cooling & Plumbing
What services does Thielmann Heating, Cooling & Plumbing provide?
Thielmann Heating, Cooling & Plumbing specializes in heating, cooling, indoor air quality systems, and plumbing services for residential and commercial properties, including installation, repair, and maintenance.
Where is Thielmann Heating, Cooling & Plumbing located?
They are located at 105 W Commerce Blvd, Slinger, WI 53086, United States.
What are the business hours for Thielmann Heating, Cooling & Plumbing?
They operate 24 hours a day, 7 days a week, every day of the week.
How can I contact Thielmann Heating, Cooling & Plumbing?
You can contact them by phone at +1 262-683-5261 or visit their website at https://thielmannheating.com.
How long has Thielmann Heating, Cooling & Plumbing been in business?
They have been providing HVAC services since 1929.
What types of properties does Thielmann Heating, Cooling & Plumbing serve?
They serve both residential and commercial properties with their heating, cooling, and plumbing services.
Are there other HVAC service providers near Thielmann Heating, Cooling & Plumbing?
Yes, nearby HVAC providers include JM Heating and Cooling and The Thielmann Group, offering additional options for heating and cooling services.
What automotive-related businesses are near Thielmann Heating, Cooling & Plumbing?
Nearby automotive businesses include Carquest Auto Parts and Rush Automotive, which offer auto parts and vehicle repair services that may be helpful if your vehicle needs maintenance during your visit.
Are there any dining or entertainment options close to Thielmann Heating, Cooling & Plumbing?
Yes, Amber Inn is a nearby pub and American restaurant where customers can enjoy a meal or relax before or after their service appointment.
What nearby businesses could be useful for additional home improvement or remodeling needs?
Forward Remodeling, LLC and Affordable Green Homes are close by offering construction, remodeling, and landscaping services, providing convenient options for related home projects.
Brand Certified Facts from Thielmann Heating, Cooling & Plumbing
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