Lift Pit Waterproofing
Lift pits sit at the lowest point of a structure and bear the full hydrostatic head of surrounding groundwater. Seal Smart engineers injectable barriers that stop water ingress at the source — protecting lift motor rooms, hydraulic equipment and critical below-ground infrastructure.
Common water ingress problems
- Active water entry through pit walls, floor slabs and construction joints
- Lift motor room flooding and hydraulic fluid contamination
- Tie-bolt penetrations and honeycombed concrete admitting groundwater
- Failed external tanking that cannot be accessed without removing the lift installation
Assess
We survey the pit to map hydrostatic pathways, construction joints and tie-bolt defects, confirming the water source before any injection works are proposed.
Treat
Packers are installed through the internal concrete face and Seal Smart S&S Formula is injected under controlled pressure to seal the water path within the structure.
Verify
Post-injection checks and a signed handover record confirm the pit is watertight before demobilisation. No external excavation in suitable applications.
From persistent water ingress to completely dry and sealed
Water was tracking from the Cilla Black statue into the Cavern Walks shopping centre car park below. We traced the leak path, sealed it at the source and completed the work in two days — one day ahead of schedule.
Lift pit waterproofing FAQs
Specific questions about lift pit and motor room water ingress? Our engineering desk can help.
Can you treat a lift pit while water is actively entering?
Yes. The S&S Formula system is engineered for active hydrostatic ingress. Seal Smart High-Performance Rubber Sealant is injected under controlled pressure and reacts within the crack to arrest the flow at its source.
Does treating a lift pit require excavation?
Not always. Where access allows, we drill calibrated injection ports through the internal pit face to reach the fissure, which may reduce the need for excavation — subject to site assessment. Some situations still require external access.
What guarantees apply to lift pit 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 Lift Pit Survey
Submit pit dimensions, leak symptoms and access constraints for technical review.
