Black-Haak is a family-owned and operated business providing heating and cooling, plumbing and electrical services in Greenville, Appleton, Neenah, Menasha, Kimberly, Darboy, Kaukauna, 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! It is our mission to provide customer comfort and safe operations to all clients!