Sewer repair
The term "sewer repair" covers all measures used to restore defective sewers to their nominal condition.
The goal of all these measures is the preservation of the substance. Various methods can be used to preserve the existing sewers by lining them with new materials from the inside. The range of all possible procedures for the rehabilitation of pipelines is wide. F. Willich has specialized in individual procedures, drawing on 50 years of company experience in the field of sewer construction.
CIPP - Cured-in-Place-Pipe rehabilitation
Proven solutions for anchoring, sealing, backfilling and consolidation – permanently stable, even under difficult geological conditions.
Short liner
Our solutions for securing, compacting and stabilising create load-bearing, permanently sealed building sites – the basis for roads, bridges, tunnels, supply networks and building construction.
Injection Technology
Our injection systems seal, stabilise and reinforce – reliably against water pressure and washouts. This keeps dykes, dams, river beds and bank structures permanently safe.
Special Applications
Our injection systems seal, fill cavities and reinforce structures – for durable, economical structures under high and varying loads.
Lateral Connection rehabilitation
We secure slotted, sheet pile and bored pile walls and stabilise the subsoil. In tunnel construction, we also offer systems for anchoring, sealing, backfilling and compacting.