Washo Interior Finish is an interior finishing specialist based in Minato City, Tokyo, providing services to improve and refresh residential spaces. The company says it has 19 years of experience and has completed more than 8,600 projects. Its work includes wallpaper replacement, floor installation, tile replacement, door and fixture installation, custom-made furniture, bathroom renovations, and lighting planning.

Washo offers a straightforward project process, from initial enquiry and a free on-site inspection to a clear estimate, installation, and aftercare. The company states that estimates are free and that costs are presented transparently, with no additional charges. It also provides guarantees for completed work, with terms depending on the project, and says it continues to offer support after the guarantee period. Customers can enquire about flexible scheduling, including evening and weekend work. Based in Konan, Minato City, Washo serves clients seeking skilled interior finishing, careful workmanship, and ongoing assistance for their home improvement projects.