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          Find a Location

          The Thielmann Group has 6 locations, listed below.

          *This company may be headquartered in or have additional locations in another country. Please click on the country abbreviation in the search box below to change to a different country location.

            Please enter a valid location.

            • The Thielmann Group

              17020 W National Ave New Berlin, WI 53151-5524

              BBB Accredited Business

            • The Thielmann Group

              1310 E Sumner St Hartford, WI 53027-1614

              BBB Accredited Business

            • The Thielmann Group

              201 S Pine St Burlington, WI 53105-1913

              BBB Accredited Business

            • The Thielmann Group

              400 W Drexel Ave Oak Creek, WI 53154-2089

              BBB Accredited Business

            • The Thielmann Group

              20 W Sumner St Hartford, WI 53027-1416

              BBB Accredited Business

            Business ProfileThe Thielmann Group

            Heating and Air Conditioning
            Multi Location Business
            BBB accredited business

            Contact Information

            17020 W National Ave

            New Berlin, WI 53151-5524

            Get Directions
            Visit Website
            (262) 786-2000

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            Customer Reviews

            1/5

            Average of 1 Customer Reviews

            Read ReviewsStart a Review

            Customer Complaints

            This business has 0 complaints

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            BBB Rating & Accreditation

            BBB accredited businessA+

            Accredited Since: 4/5/2006

            Years in Business: 95

            Customer Reviews are not used in the calculation of BBB Rating

            Overview of BBB Rating

            Related Categories

            Overview

            Theilmann & Son Heating & Cooling offers residential and commercial heating and air conditioning installation, service and repair, sheet metal work, and ductwork.

            Products & Services

            Furnaces, Air Conditioners, Ductless, Boilers, Thermostats, Humidifiers, Dehumidifiers, Indoor Air Quality Products

            Business Details

            This is a multi-location business.

            Find a Location

            The Thielmann Group has 6 locations, listed below.

            *This company may be headquartered in or have additional locations in another country. Please click on the country abbreviation in the search box below to change to a different country location.

              Please enter a valid location.

              • The Thielmann Group

                17020 W National Ave New Berlin, WI 53151-5524

                BBB Accredited Business

              • The Thielmann Group

                1310 E Sumner St Hartford, WI 53027-1614

                BBB Accredited Business

              • The Thielmann Group

                201 S Pine St Burlington, WI 53105-1913

                BBB Accredited Business

              • The Thielmann Group

                400 W Drexel Ave Oak Creek, WI 53154-2089

                BBB Accredited Business

              • The Thielmann Group

                20 W Sumner St Hartford, WI 53027-1416

                BBB Accredited Business
              Location of This Business
              17020 W National Ave, New Berlin, WI 53151-5524
              BBB File Opened:
              3/1/1987
              Years in Business:
              95
              Business Started:
              1/1/1929
              Business Started Locally:
              1/1/1929
              Business Incorporated:
              4/27/2005
              Accredited Since:
              4/5/2006
              Licensing Information:
              This business is in an industry that may require professional licensing, bonding or registration. BBB encourages you to check with the appropriate agency to be certain any requirements are currently being met.
              Type of Entity:
              Corporation
              Alternate Business Name
              • Thielmann & Son Heating & Cooling
              • Burlington Heating & Air Conditioning
              • Roth Heating Company
              • Hartford Heating & Air Conditioning, Inc.
              • Thielmann & Son Heating & Air Conditioning
              Business Management
              • Bradley A. Smith, President
              • Thomas G. Stoll Jr., Vice President
              • Jason A. Peck, Vice President
              Contact Information

              Principal

              • Bradley A. Smith, President

              Customer Contact

              • Bradley A. Smith, President
              • Thomas G. Stoll Jr., Vice President
              • Jason A. Peck, Vice President
              Additional Contact Information

              Phone Numbers

              Read More Business Details and See Alerts

              Industry Tip

              BBB Tip: Buying and servicing your heating and air conditioning (HVAC) systems

              Customer Complaints

              0 Customer Complaints

              Need to file a complaint? BBB is here to help. We'll guide you through the process. How BBB Processes Complaints and Reviews

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              Customer Reviews

              1 Customer Reviews

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              How BBB Processes Complaints and Reviews

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              Most Recent Customer Review

              Kiet N

              07/29/2023

              This company is tied to Roth Heating and Cooling. My system continues to fail every few months (well this time it took a week to fail after they “fixed it”). We continually have to wait for parts to come in so we have to suffer in the heat or cold for a couple of days. Last week we were charged around $900 for them to fix it and now a week later it’s not working again. A guy just came in and charged us $250 for diagnostic and we do not know how much the part is going to be but we have to suffer in the heat until Monday when they get the part. This business just seems shady and untrustworthy. I tried to give them the benefit of the doubt but since using them our unit continually fails and we are spending a lot of money for them to keep coming and “fixing it”. They seem to not be able to stand behind their work as since nothing seems to be under warranty even though I had them replace a system.

              Local BBB

              BBB Serving Wisconsin

              More Info on Local BBB

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