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HoldfastBasement Waterproofing

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.

Step 1 of 3 · Free, no obligation

What happened?

What happened?
Is water coming in right now?

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. 1

    Assess

    Confirm the crack is non-structural.

  2. 2

    Inject

    Ports installed; polyurethane or epoxy injected.

  3. 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

Call about a leaking crack

Shrinkage cracks in poured walls.

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