KupiDoor is a Moscow-based retailer of interior and entrance doors, flooring, and hardware, serving customers since 2014. Its catalogue features more than 500 models, with options for apartments, private homes, offices, and contemporary interiors. Interior doors come in styles ranging from classic to minimalist and in finishes including eco-veneer, natural veneer, enamel, PET, and solid wood. The selection also includes concealed, sliding, and double-leaf designs. Entrance doors are available with features such as thermal breaks, insulation, soundproofing, mirrors, glass, and electronic locks. Customers can also shop laminate and SPC flooring, plus handles, locks, and hinges from listed brands.

KupiDoor offers end-to-end service, from product selection and cost estimates to measuring, delivery, and installation. The company provides free measurements in Moscow and the surrounding region, maintains local stock, and advertises delivery and fitting services. Its own installers handle installation, and products and work are backed by a 12-month warranty. Customers can browse online, request a tailored estimate, or contact the team daily by phone or email.