JS Bautenschutz

Punctual, reliable and clean – the modernization of our old building was completed exactly on schedule.

JS Bautenschutz renovated our attic balcony, including installing a new drainage channel and waterproofing the parapet. The details at the connections are precise; nothing is fraying or sticking out. Even after several thunderstorms, everything remains dry. That's exactly what we wanted.

JS Bautenschutz applied a liquid waterproofing membrane with fleece reinforcement right up to the door threshold, without creating a tripping hazard. That was exactly the solution we needed. The construction site remained clean, and the neighbors weren't disturbed. Very professional.

I appreciated the transparency: before-and-after photos, clear milestones, and a realistic timeline. The connections to the window and door profiles were treated with particular care. It's been completely dry for weeks, even during heavy rain. Highly recommended.

JS Bautenschutz completely renovated our aging balcony. They exposed the substrate, rebuilt the slope, and applied a state-of-the-art liquid plastic sealant with a fleece reinforcement. Since then, everything has been watertight, even in heavy rain. Clean work and clear communication.