Retaining Wall Waterproofing
Sheet-pile, secant, contiguous and mass concrete retaining walls hold back saturated ground and carry sustained hydrostatic head. When external tanking tears or waterstops fail, Seal Smart installs injectable barriers from the accessible face — sealing the water path at the source without the cost of excavation.
Common water ingress problems
- Weeping and active ingress through sheet-pile and secant pile joints
- Failed external Type A tanking that cannot be reached without excavation
- Hydrostatic head forcing water through contiguous pile interlocks
- Construction joints and tie-bolt penetrations in mass concrete walls
Assess
We map the wall construction, hydrostatic head and leakage points to identify whether ingress is joint-, pile- or crack-driven before specifying treatment.
Treat
Packers are installed through the accessible face and Seal Smart S&S Formula is injected under controlled pressure to seal the water path within and behind the wall.
Verify
Post-injection checks confirm the wall face is dry. Where excavation would otherwise be required, internal injection may remove that need — subject to site assessment.
Stopping water ingress at one of football's biggest venues
High-pressure injectable sealant penetrated deep into the Anfield stadium stand structure and sealed the water path at the source — leaving the area completely watertight with no disruption to match day operations.
Retaining wall waterproofing FAQs
Questions about pile walls, hydrostatic head or access? Our engineering desk can help.
Can you seal a retaining wall without excavating the outside?
Often yes. Where the internal or accessible face reaches the water path, we drill injection ports and inject the S&S Formula behind the wall to seal the source — which may reduce or remove the need for excavation, subject to site assessment.
Does the S&S Formula cope with active hydrostatic head?
Yes. The system is engineered for active, high-pressure ingress. Seal Smart High-Performance Rubber Sealant is injected under controlled pressure and reacts within the pathway to arrest the flow.
What guarantees apply to retaining wall works?
Guarantees are specific to the agreed engineering system, scope of works and treated area, set out clearly in the formal quotation and contract. We do not offer misleading blanket guarantees.
Verified Quality & Performance Standards
Engineered injection records, site RAMS compliance, and contractor handover assurance.
Signed Handover Records
Every project is signed off through formal inspection protocols, joint-by-joint quality records and verified post-injection checks before site demobilisation.
Direct Technical References
Specific project case studies, client contacts and procurement referees can be provided directly to pre-qualification teams upon tender submission.
Verified Accreditations
RISQS approved, PTS/CSCS certified workforce, Constructionline Silver member, with documented compliance available for procurement review.
Request a Retaining Wall Survey
Submit wall type, retained height and leak symptoms for technical review.
