Madison Plumbing Supply is a full service plumbing supply house, located in Madison, NJ. We are most proud of our outstanding showroom at our headquarters! If "a picture is worth a thousand words"; then a visit to our showroom is worth a thousand pictures! It is there that you will see the products listed on this website on display. Our sister company, Grant Supply Co., Inc., located in North Brunswick, NJ, is a major plumbing and industrial supply house, with a second location in Pleasantville, NJ. Now there are three locations, a massive inventory, and a great sales staff to better serve your needs! It is not practical to list everything on a web-site. We have chosen to list only the most unique items. Click the pictures below or follow the links at the left to view the pages....