Design Diffusion SARL is a general renovation company located in Vernier, Switzerland. It specializes in import-export of construction materials and offers various renovation services.

Blanc SA was founded in 1945 and employs over 200 people in French-speaking Switzerland. The services offered by Blanc SA include: • All types of cleaning (windows, facades, shampooing, floor treatment) • Facility maintenance (cleanrooms, commercial spaces, fitness centers, offices, professional kitchens) • Commercial premises • Concierge service • Industrial buildings • Medical areas • Fitness maintenance • Food-processing surface cleaning Our mission is to clean spaces using the best available technologies to ensure optimal results in minimal time – we understand that keeping a store open only for cleaning is costly. Administrative Areas We create a customized service plan based on your needs, taking into account furniture, surfaces, and office layout. Our staff works at the most convenient time for you, ensuring no disruption to your operations. Industrial Buildings Production staff may not prioritize cleanliness the same way we do – but they are essential to production. Leave them at their stations and let us take care of all types of surface cleaning. Our Services Post-construction cleaning, apartment cleaning, facade cleaning, shampooing, spring cleaning, window cleaning (private and professional), stone treatment, marble crystallization, water damage cleaning, fire damage cleaning, urban cleaning, public institution cleaning, upholstered furniture cleaning, anti-spider treatment