Granto Glass Block Company, based in North Tonawanda, NY, has been serving the Buffalo Niagara region since 1992. Specializing in glass block windows, walls, and partitions, they offer custom interior and exterior trim packages, rough framing services, and standard size installations for both residential and commercial projects.
This family-owned and operated business, led by owner Gerald Granto, takes pride in their veteran-owned status and commitment to quality craftsmanship. With a team that never uses subcontractors for window installations, Granto Glass Block Company is fully licensed, insured, and EPA NYS lead certified, ensuring a reliable and professional service for all customers.
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