Tierney & Courtney Overhead Door Sales Company supplies windows and doors to residential and commercial customers. The products offered by the company include aluminum and vinyl doors and windows, electric operators, and case and base molding. It also offers roof windows, stairs parts, trim, locksets, exterior columns, dock seals and levelers, glass blocks, skylights and entry doors. The company s clients include industrial buildings and warehouses, apartment houses and condominiums, office building and malls, super structures and stadiums and apartment houses. In addition, it provides emergency repair, new installation and retrofit and preventive maintenance services. Tierney & Courtney Overhead Door Sales Company is located in Flushing, N.Y.