The Thielmann Group 107 North Milwaukee Street, Waterford, WI 53185

"We recently replaced our furnace and a/c. We had an awesome experience from the start. The first visit was very informative, and easy to decide what we wanted for our house. On the installation day, everyone was very professional, courteous and respectful to us, our time, home and possessions. After the work was done we got a thorough tour of the new system and how the new thermostat works. We also had them come in a few days later to clean the air ducts, again the guys that came were great. We have been going through them (originally as Roth Heating) for years. We've been happy with them each time we've had to call them for service."

"Paid $140 just for the Guy to come for 5 mins to bang on my furnace with a screwdriver. It should've just been the $90 service fee. I dont get how this company charged my bill from $90 to $140. Won't be using this company again!"

"Thielman is responsive to my needs for years. I won't hire anyone else."

"My pick to replace my old boiler. Good price and very knowledgeable installers."

"Fantastic service. Chris was awesome, super friendly, and thorough. He went above and beyond and inspected everything and ended up saving us another visit with our humidifier."