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JOHN STERLING Window Hardware
Protect your building internally and externally with the right window hardware. Keep your facility safe and insulated with our wide selection of closer hardware. We offer door and window replacement screens, window and door seals, window insulation kits and window locks and hardware. Protect your building from the outside threats including weather, pest and intruders. Whatever your building needs, we have the door and window hardware supply and accessories that will get the job done.Close