Established in 1848, Hancock Lumber is one of the leading family-owned lumber companies in the United States. The company offers interior and exterior doors and windows in a variety of colors and designs. Its sales division, Hancock Windows, has a stock of more than 11,000 windows and doors. Hancock Lumber offers services to contractors and homeowners. The company s areas of specialization include installation, customized design, planning and consultation services. It also maintains several sawmills located in Maine. Hancock Lumbers provides discounts on roofing, siding, framing and decking products. The company offers skylights, stairs, ceilings, columns, railings and shutters. Hancock Lumber is located in Windham, Maine..