Learn More About Black-Haak

When You See Us, It Means Service!

Founded in 1956, Black-Haak is a family-owned and operated business providing service in Appleton, Neenah, Menasha, Kimberly, Darboy, Kaukauna, Greenville, and throughout the Fox Valley and surrounding areas.

We are proud to conduct business based on a firm foundation of honesty, integrity, family values, comfort, service, reliability and trust. Our reputation of strength shows through!

At Black-Haak, family is important – and our clients are family. From yearly maintenance on equipment to newsletters with valuable energy information, we keep our clients informed.

Black-Haak is a proud member of the BBB – Better Business Bureau – Winnebago Home Builders Association.


    It is Black-Haak’s mission to provide customer comfort and safe operations of heating and cooling equipment in the homes and businesses of Fox Valley residents by providing superior customer service and professionalism which is above industry standards.

  • Pricing OUR PRICING

    At Black-Haak, we provide our services with flat-rate pricing. We’ll tell you what is wrong and how much it will cost – and we do this before beginning any work. If you decide you do not want the service performed at that time, you pay only for the diagnostic.


    We are happy to work with you and your needed schedule. Black-Haak is available to you 7 days a week with no overtime charges for your Saturday or Sunday morning requirements. Our technicians come prepared with all necessary parts, tools and knowledge to perform any task you may need.


    A friendly smile and highly skilled technician is ready to assist you with all your heating and cooling needs. The personal attention and indoor comfort your family or business deserves awaits you! Black-Haak’s employees are the best trained and most experienced technicians in the heating and air conditioning industry.

    Our skilled service technicians have a minimum of one year technical education and two years experience in the field. The technician possesses the technical knowledge and capabilities to service all types of heating or air conditioning equipment which you may already own. Our ongoing, continuing education keeps our team on top of its game and ahead of the latest trends.


    Skill and efficiency are key ingredients to Black-Haak’s reputation. Our business is departmentalized to best utilize the expertise of our employees. Our company is broken down into an efficient installation department and a separate service department.

    This distinguishable trait allows us to provide the expertise and workmanship which you and your family or business have come to expect. Black-Haak has a reputation of strength. We take pride in our responsiveness to your needs, superior quality workmanship, efficiency and innovation.