Thielmann Heating, Cooling & Plumbing

Thielmann Heating, Cooling & Plumbing has earned a 4.9-star average across 1,774 client reviews in New Berlin, Wisconsin, establishing itself as a trusted name in residential climate control throughout the Milwaukee metropolitan area. Operating as a full-service heating contractor, the company maintains 24-hour availability seven days a week, ensuring homeowners never face a heating or cooling emergency without support. This consistently high rating reflects thousands of completed installations and service calls across the region.

What distinguishes Thielmann from regional competitors is the precision their technicians bring to each assignment. Multiple reviewers highlight how staff members take time to explain systems thoroughly before beginning work, walking homeowners through furnace operations, thermostat adjustments, and maintenance requirements. The company handles complex retrofits, including modifications to existing galvanized housing and PVC venting when installing newer, more compact equipment in older homes.

Customer testimonials consistently name individual technicians who delivered exceptional service. Benjamin G earned specific praise for replacing a 1988 vintage furnace, carefully adapting modern equipment to existing infrastructure. Jeff D and his crew were recognized for coordinating a furnace and exhaust system installation with military precision just before subzero weather arrived. Matt C received commendations for his thorough explanations during a December furnace installation, leaving the workspace immaculate. Kyle took time to walk a homeowner through water heater flushing procedures, answering every question with patience.