TH
Thielmann Heating, Cooling & Plumbing
Your trusted partner for year-round comfort and reliable home services in New Berlin.
5(5 reviews)
$$$
plumber
heating-and-air-conditioning-hvac
contractors
Professional installation of new, energy-efficient furnaces with thorough explanations and clean-up.
Tune-ups, inspections, and repairs to keep your AC running smoothly during hot months.
Replacement and adjustment of boilers and water heaters, including detailed guidance on usage.
Reliable fixes for leaks, clogs, and other plumbing issues to maintain your home's functionality.
Regular inspections and tune-ups to ensure optimal performance and prevent breakdowns.
Prompt response for urgent heating, cooling, or plumbing needs, especially during extreme weather.
Your trusted partner for year-round comfort and reliable home services in New Berlin.
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Thielmann Heating, Cooling & Plumbing is a top-rated, family-owned business serving New Berlin and surrounding areas with exceptional HVAC and plumbing solutions. With a 4.9/5 rating from over 1,600 reviews, we specialize in furnace installations, AC services, boiler replacements, and comprehensive plumbing repairs. Our skilled technicians, like Jeff D., Makinze C., Benjamin G., and Matt C., are known for their punctuality, expertise, and meticulous work, ensuring your home stays comfortable in any weather. We pride ourselves on transparent communication, efficient service, and standing by our customers every step of the way.
Benjamin G was here in Fri. Jan. 16 arriving on time as scheduled. He replaced my old furnace (manufactured in 1988). All the galvanized housing and PVC pipe was modified to fit. The old furnace was much larger than the new one. I am very pleased with how this all went down. I would highly recommend Benjamin G. Clean up went well, they did a great job!
Matt C. led the installation of a new furnace system today, 12/29/25. He is very knowledgeable and thorough in explaining what was being done. Very helpful answering my questions. A very neat and clean installation. I very much appreciate the consciencous attitude and thorough approach of Matt and the crew.
Makinze C. from Theilmann’s was sent to check out our furnace to do a tone up and inspection. Mac did a great job going over everything on the furnace explaining what he was doing. He was very thorough and meticulous with his inspection. My wife and I were very impressed and happy with “Mac’s” work. I would not hesitate to recommend him to anyone to service their furnace or air conditioner.
Extremely helpful in my decision to buy a new furnace with Thielmann. Stood by me while I was talking to previous furnace installer .. therefore making my decision much easier. A real pleasure doing business with Thielmann. Also for the installation of the furnace and exhaust system, Jeff D and his crew were so very efficient, like clock work .. everyone had their job to do. So great job!! Especially just before the below zero weather coming. That's no time to be without heat.
Benjamin was on time, polite, explained everything is new, how to adjust water heater and thermostat. Noted the manuals that came with boiler and water heater. Reminded me to call if I have any questions or concerns. Thank you Happy holidays!✌️
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