Diamond Windows & Doors MFG. originally operated out of a 20,000 sq. ft. facility in Brighton, MA. The quick growth of the company soon necessitated a move to a larger facility. In 2004, Diamond Windows moved all of its headquarters and manufacturing systems to the more centrally located Dorchester neighborhood of Boston. With a new 90,000 sq. ft. facility with convenient access to both highway I-90 and I-93, Diamond Windows is poised to better serve all of New England and America.

With more room to expand, Diamond Windows took the opportunity to update all its machinery when it moved. Our state-of-the-art manufacturing capabilities allow us to make the highest quality window possible. The new factory floor even opened enough room to accommodate the machinery needed for introducing a product expansion into aluminum windows. This product expansion effectively brought Diamond Windows into the commercial market, making us your complete window system solution, whether you are working on a small residential property or on a large scale commercial building.

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