New Slinger Location | Thielmann Heating And Cooling
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.

New Slinger Location

Since 1929, The Theilmann Group has been heating and cooling Southeastern Wisconsin. We’re thrilled to announce the newest addition to Theilmann Group’s locations in Slinger, Wisconsin. This expansion enables us to bring our exceptional heating and cooling services to an even larger area that now extends farther north. With this growth, we can provide top-notch service to communities such as Slinger, Mequon, Cedarburg, Grafton, and West Bend. To read more about our Grand Opening click here

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Why Choose the Thielmann Group?

Offering Reliable Heating & Cooling in WI for Over 90 Years
  • Same-day services
  • Licensed & insured
  • NATE-certified & background-checked technicians
  • Free estimates on replacement quotes
  • Maintenance plans available
  • Upfront pricing & financing options
  • Military, veteran & senior discounts
  • A+ rating from the Better Business Bureau
  • Lennox Feel the Love partner