24 Hour Emergency Service
At your door when you need us!

8:00 a.m. – 5:00 p.m. Mon.–Fri.
9:00 a.m. – noon Sat.

Visit our three locations:

Sturgeon Bay: (920) 743-5587

Sister Bay: (920) 854-5587

Luxemburg: (920) 845-2525

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As a premier heating and air conditioning contractor, Wulf Brothers, in Sturgeon Bay, Sister Bay and Luxemburg, specializes in comprehensive residential and commercial HVAC services, including service and repair on all brands of products. We carry top quality and energy efficient air conditioners, furnaces, geothermal heat pumps, hybrid, dual and hydronic heating products, boilers, and humidifiers, and a full line of temperature controls.
     Our certified heating technicians provide installation and warranty services for all of our products plus post-warranty service and maintenance for most all other makes and models.




Wulf Brothers, Inc.

Professional. Trustworthy. Experienced.