Black-Haak is the company Oshkosh, residents choose for all of their plumbing needs. It takes a skilled plumber to install your home’s plumbing fixtures and keep everything in good working order. We’ve been in business since 1956 and know what it takes to meet all of your plumbing needs. Our team is ready to help you with everything from simple repairs to fixture replacements and remodeling. Our goal is to keep your water running, prevent leaks, and make your home look great. No matter what type of plumbing work you need, one call is all it takes to get it solved.