
Permanent injectable waterproofing · UK-wide
We stop water at the source
Seal Smart is a UK waterproofing contractor delivering environmentally friendly injectable systems that penetrate deep into cracks, joints and voids — engineered for high-risk, hard-to-access rail and civils environments.
- Fully RISQS approved
- All staff hold PTS and CSCS
- COSS-qualified staff available
- Fully guaranteed installations
What we do
Injectable waterproofing that outperforms foam and membranes
Stops water at the source
Our formular travels into the structure and seals the water path itself, rather than managing the leak once it has already reached the face.
Deep penetration
Engineered to penetrate cracks, joints and voids that surface coatings, foams and sheet membranes cannot reach.
Environmentally friendly
A permanent, environmentally friendly system suitable for sensitive live environments and confined spaces.
Fully guaranteed
Every installation is fully guaranteed and documented, with a specification written for the structure in front of us.
Hard-to-access ready
Designed for high-risk, restricted-access assets — deep shafts, live platforms, lift pits and trackside structures.
Turnkey rail delivery
We work alongside a planning and possession company to offer a full turnkey rail package from planning through to sign-off.
Sectors
Recent project · Cavern Walks, Liverpool
From persistent water ingress to completely dry
Water was tracking from the Cilla Black statue into the shopping centre car park. We traced the path, sealed the source and completed the work in two days — one day ahead of schedule.


“Tom and the lads from SealSmart Waterproofing were very professional, courteous and informative. We had record rainfall amounts two weeks later and the car park stayed dry.”
Recent project · Anfield Stadium, Liverpool FC
Stopping water ingress at one of football's biggest venues
Persistent water ingress was coming through a stadium stand at Anfield and threatening a plant room packed with match-critical kit. Our high-pressure injectable sealant penetrated deep into the structure, sealed the water path at the source and left the area completely watertight — with no disruption to match day operations.



“A big thank you for your speedy response to our plant room leak issues. We have had sustained heavy rainfall since the works were carried out with no issues. The area you treated is now water tight.”

Structures we seal
Engineered for the difficult ones
Every structure is surveyed, specified and injected to suit its condition, water pressure and access constraints.
- Tunnels
- Platforms
- Car parks
- Chambers
- Shafts
- Retaining walls
- Lift pits
- Trackside structures
Water ingress on your structure?
Send us drawings, photos or survey notes and we will specify a permanent injectable solution — fully guaranteed, UK-wide.

