Diligent Window Supply

Diligent Window Supply distributes residential and commercial fenestration products throughout the Northeast region from its headquarters in Connecticut. The company maintains authorized partnerships with Windor Systems and Slocomb Windows & Doors for vinyl, aluminum, and traditional window systems. Their distribution network spans New England and the Mid-Atlantic states, serving contractors, builders, and architectural firms. The product catalog encompasses Low-E glass windows, argon-filled insulating units, and thermally broken aluminum frames engineered for Northeast climate conditions. Technical specifications focus on fusion-welded construction methods, multi-chamber designs, and certified energy performance ratings. Window styles include double-hung, casement, and custom configurations manufactured to project requirements. The company provides architectural documentation, product specifications, and installation guides through their contractor portal and specification library. Support services include shop drawings, energy calculations, and code compliance documentation for commercial and residential applications. Project consultation covers thermal performance, weather resistance, and regional building code requirements.