Waterproofing
Structural waterproofing
Responsible structural waterproofing assessment with clear design and delivery boundaries.
Why diagnosis matters
Treat the cause, then repair the damage
Structural waterproofing is a specialist design discipline, not simply a coating choice. Intended use, structure, groundwater, drainage and maintainability must be considered together.
Technical review
Dan, Director / Surveyor
Last reviewed: July 2026. Advice is general until the property, access and visible evidence have been assessed.
Guarantee & aftercare
Written guarantee terms are matched to qualifying work, with inclusions, exclusions and aftercare explained before acceptance.
What we consider
Possible causes and lookalikes
Below-ground water pressure
Complex existing structures
Conversions and change of use
Combined defects and movement
Inspection method
A clear work sequence
Step 1
Establish project requirements
Step 2
Confirm competence and design lead
Step 3
Develop coordinated specification
Step 4
Install with documented quality control
Scope boundaries
Honest about what the work does—and does not—cover
We only offer design or installation where current competence and insurance cover the defined responsibility. Otherwise an appropriately qualified waterproofing designer is introduced.
Common questions
About structural waterproofing
What standard applies?+
Below-ground waterproofing is commonly designed with reference to BS 8102 and project-specific responsibilities. Current requirements must be confirmed by the designer.
Can you guarantee a dry basement?+
Performance and guarantee terms depend on design, system, maintenance and exclusions. Unsupported universal promises are inappropriate.
Who owns the design?+
The appointment should state this clearly before work begins.
Related services
Continue your investigation
Next step
Claim your complimentary survey before choosing a treatment
Tell us what you can see, when it changes and where the property is. Photographs can help us triage the next step.