George Quinn Stair Parts Plus is rated 4.7 out of 5 in the category home improvement store. Read and write reviews about George Quinn Stair Parts Plus. We are a stair parts manufacturer and distributor. We offer a large variety of stair parts collections and designs that serve as a solution to carpenters, builders, joiners and home owners. With over 50 years experience, we managed to keep an unwavering position as one of the top companies from the stairs market.