The Thielmann Group,

105 West Commerce Boulevard, Slinger, WI 53086

"Awesome service and job completion. Jake came right away and worked tirelessly to diagnose the issue. Found the issue, very informative, got the pets, installed. I was shocked at the cost in a good way. Thielmann is the BEST!!!!"

"We had problems with our home boiler system. I had Thielmann come in and quote me a new system. The person who came was extremely knowledgeable (Steve). After recovering from sticker shock we contracted them for the job. They were able to schedule us within a week. They were in and out in less than a day. Cleaned up everything. Installers were very professional. New system seems to be a winner. Office staff was pleasant too...as they took my $$...loll. Highly recommend!"

"Was able to come out same day to troubleshoot/fix a non working furnace. The tech was prompt, friendly and knowledgeable. Definitely would recommend them to anyone needing HVAC work & will use again in the future."

"Great service & value! Heath was both professional & persnable as he: 1) fixed the faulty Iignition on one furnace, 2) adjusted the gas pressure on another, 3) replaced a deteriorated part of one A/C unit, 4) cleaned & tuned the other A/C unit! October 2023-Cedarburg WI"

"Had them come out to give me an estimate on gas addition work I wanted done. They were very honest, friendly, and timely. While they do seem to be more on the expensive side for my tastes, they did even provide alternative less expensive options. I would trust them to do any future work properly and will be reaching out to them with some major work I want done in the near future."