ISOTEC Waterproofing Systems Walzer AG
Basel-based waterproofing specialist handling mould, cellar renovation, and structural sealing with strong project coordination.
What customers love
- Deadlines and schedules consistently met, even during COVID-19
- Tidy construction sites and thorough cleanup after work
- Expert consultation and professional project coordination from start to finish
Best for
Homeowners with persistent damp, mould, or complex waterproofing challenges needing full project management.
Attribute scores
Recent reviews
I can highly recommend Isotec – even though water damage is unpleasant, the cooperation with Fabian Walzer and all the employees makes the event only half as bad 👍! Everything always went according to plan and deadlines.
Competent problem assessment and consultation. Attentive and competent team in preparation, execution, cleanup, and liaising with other tradespeople. Clean work! Highly recommended. It's too early to comment on the long-term success of the renovation, only four weeks after completion. So far, it's a pleasure to see!
Really good experience, top quality, replicabile and on time.
We had a very positive experience with Isotec! The mold is gone and the moisture levels are being monitored. From start to finish, we felt we were in good hands with Isotec. Mr. Walzer provided expert advice, and his team made a very good impression. The work was completed within the agreed timeframe. We are very satisfied and would recommend Isotec without hesitation!
In spring 2020, we had the wall connection of our veranda sealed by ISOTEC and were so impressed with their work that we commissioned them for a larger project in October/December 2020. This involved the renovation of a wine cellar that was significantly too damp (due to the natural floor, natural walls, and improperly installed insulation panels on the ceiling). Isotec handled the entire project planning, cost estimate, and execution (including the involvement and coordination of third parties) to our complete satisfaction. As far as we can tell, the work was carried out carefully, professionally, and with the utmost consideration for the building (and for us). The conduct of the Isotec employees was impeccable at all times, the construction site was 100% tidy, and communication and scheduling were seamless – despite COVID-19. I am happy to recommend Isotec for anyone needing to tackle challenging sealing problems effectively and professionally.