Basement waterproofing
Leaking wall crack repair
Leaking crack repair seals non-structural cracks in poured concrete walls, usually by injecting flexible polyurethane that expands to fill the crack through the wall's full thickness. Cracks that are widening, displaced or horizontal need a structural assessment first.
- Typical time
- A few hours.
- Repair or replace
- Inject non-structural cracks; assess structural ones.
Poured concrete walls commonly develop vertical shrinkage cracks that leak in wet weather. Injection is quick and effective for these.
Block and stone walls leak through joints and porous units rather than single cracks, so drainage is usually the better fix there.
Leaking Wall Crack Repair at a glance
- What it is
- Leaking crack repair seals non-structural cracks in poured concrete walls, usually by injecting flexible polyurethane that expands to fill the crack through the wall's full thickness.
- Service category
- Basement Waterproofing
Signs you need leaking crack help
- Water trickling from a vertical crack
- Damp streak below a crack
- Crack that leaks only in heavy rain
Quick answers
Leaking Wall Crack Repair: the short version
How long leaking wall crack repair takes
A few hours.
When leaking crack can wait, and when it can't
Soon; before the next heavy rain.
Fix or replace leaking crack?
Inject non-structural cracks; assess structural ones.
Why leaking crack happens
Shrinkage cracks in poured walls.
The work
How leaking wall crack repair is done
- 1
Assess
Confirm the crack is non-structural.
- 2
Inject
Ports installed; polyurethane or epoxy injected.
- 3
Finish
Ports removed and surface cleaned.
What moves the price of leaking wall crack repair
Driven by crack count and length.
- Number and length of cracks
- Wall type
- Access
Leaking Wall Crack Repair: common questions
Can I seal a crack from inside with hydraulic cement?
It may slow a leak but often fails because it doesn't fill the crack through the wall.
Epoxy or polyurethane?
Polyurethane is flexible and suited to leaks; epoxy bonds the wall for strength.
Service area
Leaking Wall Crack Repair across the Mahoning Valley
Related
Services often paired with leaking wall crack repair

Structural Foundation Crack Repair
Structural crack repair addresses cracks that indicate wall movement: horizontal cracks, stair-step cracks in block, cracks wider at one end, or displaced edges.
Learn more
Interior Drainage Systems
An interior drainage system (interior drain tile or French drain) is a perforated pipe installed in a trench along the inside perimeter of the basement floor.
Learn moreGuides
Reading on leaking crack

Call about a leaking crack
Shrinkage cracks in poured walls.