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Thielmann Heating & Cooling has been providing trusted HVAC services across Southeastern Wisconsin since 1929. They specialize in heating, cooling, and indoor air quality systems for residential and commercial properties, offering installation, repair, and maintenance with a focus on reliability and customer satisfaction.

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BBB Rating
A+
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BBB Accredited businesses follow the BBB Code of Business Practices and pay a fee for accreditation review and monitoring. Accreditation is not a BBB endorsement or evaluation of the business’ product quality or competency in performing services.

BBB Rating and Accreditation information may be delayed up to a week.
Hours
Regular Hours
Mon - Sun:
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Categories
Boiler Repair & Cleaning, Air Conditioning Contractors & Systems, Air Conditioning Equipment & Systems, Air Conditioning Service & Repair, Boiler Dealers, Furnaces-Heating, Heat Pumps, Heating Contractors & Specialties, Heating Equipment & Systems
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