The Thielmann Group
National, New Berlin, WI

The Thielmann Group Reviews

4.9 stars based on 273 reviews

Featured Comments:

• S

  S Ebling

  5.0

  Our new house was too tight (I had no idea this was even a thing!). We had water actually dripping down our windows from moisture when it was cold outside. We initially thought it was the windows, but we barely even need to run the heat. And our humidity was super high! We called around for a whole house humidifier. Thielmann Group told us the best thing we could do was to get an ERV system. They also installed a few returns in our basement. It wasn't cheap, but it was a very fair price and it has been HUGE for our house! We went from high humidity to 42% in ONE DAY. The windows weren't foggy and running. Since then humidity has gone down even more. We do not even need the other dehumidifiers that we had running 24/7. The ERV is energy efficient as well, and has its own thermostat. It took them about 6 hours, even with installing some returns for us. They left the house clean. I would highly recommend this team.

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  Response from the owner

  Thank you for the 5-Star Review and for sharing your experience. We appreciate your business!

• R

  Roxanne Emrich

  5.0

  I called 7:30 AM last Tuesday for a possible CO2 leak. They arrived before 11am, diagnosed the issue, advised a new furnace was needed. Space heaters were left for us to use in the interim. Thursday afternoon, they returned and installed the new furnace, putting plastic down on all carpeted surfaces, aware of wet boots, broken parts, etc. that might dirty the floor. Within two hours, the new furnace was installed and running perfectly. The installers, electricians and office staff were extremely professional and courteous, answering any questions I had. I would definitely recommend Thielmann to my friends and family. Thank you for a great experience! Roxanne

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  Response from the owner

  Thank you for your 5-Star Review and for sharing your experience, Roxanne. We appreciate your business!

• J

  Jennifer Clower

  5.0

  had them come out for annual service; On time and professional. Issues were discovered and they offered competitive quote for new install of furnace and ac. Able to schedule quickly, offered finance options. Install team was on time, professional, and finished faster than expected. Everything working great. Happy with the level of service

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  Response from the owner

  Thank you for sharing your experience and for the 5-Star Review, Jennifer. We appreciate your business!

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