Are you in Appleton, WI, or the surrounding area and want the best in AC maintenance service? Leave the job to us, your dependable air conditioning professionals at Black-Haak! During the hot summer months, your air conditioner needs to perform at full capacity. No one understands how important it is for you to keep cool more than our team of trained experts and courteous technicians at Black-Haak. Whether you live in Appleton, Greenville, Fox Valley, or the surrounding areas, trust us with your annual AC tune-up service. At Black-Haak, we’re committed to keeping your system operating as it should, and your comfort is our mission.