Thielmann Heating, Cooling & Plumbing

Thielmann Heating, Cooling & Plumbing has earned a reputation for reliable residential and light commercial service across Slinger and surrounding Wisconsin communities. With 446 client reviews yielding a flawless 5.0-star average, this contractor operates around the clock seven days a week, ensuring homeowners never face a heating or cooling emergency without responsive support. The company appears to maintain strong standing with the Better Business Bureau, a factor multiple customers cited when selecting the company for new system installations.

This contractor distinguishes itself through several capabilities rarely found at the regional level. Several recent reviews document successful Lennox furnace installations, suggesting established dealer relationships with major equipment manufacturers. Customer feedback indicates the team installs ultraviolet air purification systems and adds accessories such as whole-home humidifiers to existing setups. Technicians consistently take time to explain new equipment features before departing, and cleanup protocols receive explicit praise in multiple five-star reviews.

Customer stories from the past year illustrate why Thielmann maintains perfect ratings. When Sarah Holbert Nickel needed emergency furnace replacement just before Christmas, Nick arrived within one hour of her initial call and a full installation followed within two days. James Palma led a same-weekend furnace and air conditioning installation for Lynn Tyson, with the crew explaining system features before leaving. For Brett, the team evaluated HVAC compatibility for ultraviolet light addition before scheduling the upgrade, ensuring the system could support the enhancement.