Reviews for The Thielmann Group

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Sep 2025
The Thielmann Group has been a trusted heating and cooling expert serving Southeast Wisconsin since 1929. With locations in New Berlin, Hartford, Burlington, and Menomonee Falls, they provide excellent service to both residential and commercial customers. Customers appreciate their staff for being kind, knowledgeable, and professional. When urgent repairs are needed, like furnace or air conditioner issues, they respond quickly and efficiently. The technicians, such as Brian P. and Nicholas H., are experienced—Nicholas has 24 years in the industry—and take the time to explain problems clearly. The company values respecting customers' homes, often wearing disposable booties, and offers personal recommendations tailored to each situation. They are known for fast service, sometimes installing new systems within a day of the quote. Customers often mention how helpful and caring the employees are, and how they feel confident in the advice given. The Thielmann Group is highly recommended for all HVAC needs in the region.

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From The Thielmann Group

Thielmann Heating, Cooling & Plumbing has proudly served Southeastern Wisconsin since 1929, offering expert HVAC and plumbing services for homes and businesses. We specialize in heating, cooling, air quality systems, and plumbing solutions including water heaters, water treatment, and leak repairs. From installation to maintenance and emergency repairs, our certified technicians deliver reliable, professional service with a focus on comfort and customer satisfaction. We work with top brands to ensure energy efficiency and long-lasting performance.

Hours

Monday: Open 24 hoursTuesday: Open 24 hoursWednesday: Open 24 hoursThursday: Open 24 hoursFriday: Open 24 hoursSaturday: Open 24 hoursSunday: Open 24 hours