Ultimate Windows Inc, 130 Shepard St, Lawrence, MA 01843, US

Merrimack Valley Wood Products is one of the leading manufacturers of doors and windows in the United States. Located in Derry, N.H., Merrimack has a state-of-the-art warehouse and production facility. The company stocks a wide variety of specialty products, such as Everclad Infinity series welded vinyl windows, exterior entrances and doors, interior door units, hollow and solid cores and pine doors, oak, maple, cherry and hemlock stair parts. It also offers finishing trims in clear pine, primed finger joint and poplar. Merrimack manufactures optional J-channel sashes and frames, slope multichambered sill designs, prepunched nailing fins, interlocking aluminum reinforced locking rails, insulating glasses, tilt take-out block and tackle balance system, and double weather stripped windows. Additionally, the company provides moldings, chair rails and casings.

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