• Our Mission: "We are an organization that supports our business community. We provide resources for our members to stimulate their growth and make our community a better place to conduct business".

  • Our Vision: " The Chamber is a recognizable and sought after resource for businesses in the New Berlin Community"



      " Strengthening Business & Community Since 1959"                                                                             


  • Thielmann & Son Heating and Cooling

    Thielmann & Son Heating and Cooling


    Contractors - HVAC

    About Us

    Thielmann & Son Heating and Cooling provides the very best climate comfort products along with money saving solutions and superior customer service to Southeast Wisconsin. Our team prides ourselves on timely service, competitive pricing, attention to detail and our willingness to always go the extra mile for our customers.

    • A+ Better Business Bureau Rating
    • Over 90 Years in business (Since 1929)
    • Small Business of the Year 2018 (New Berlin Chamber of Commerce)

    Products and Services we offer:
    • Heating
    • Air Conditioning
    • Ductless Systems
    • Maintenance and Tune-Ups
    • Thermostats
    • Indoor Air Quality
    • Duct Cleaning


    New Berlin Location
    Hartford Location
    After completing an installation yesterday, our installers took a minute to lend a hand and help the little guys with their new fort.
    A+ BBB Rating
    Gallery Image Thielmann_Logo_042519.jpg

    Rep/Contact Info

    Ryan Rosenthal
    Sales and Development