M-F 7 am- 6 pm, Sat 7:30 am-4:30 pm. Sun. 10 am - 4 pm, Sherwin-Williams is a manufacturer and retailer of quality architectural, industrial, and chemical finishes, paints and coatings. We offer superior products to meet the critical design and durability expectations of today's customers. Sherwin-Williams has been named 2005's most environmentally friendly contractor by the general services administration (GSA).