Foundation Crack Injection

What This Service Involves

Foundation crack injection fills cracks in poured concrete walls to keep water out and, with structural epoxy, restore the wall's integrity. We identify whether a crack is a cosmetic shrinkage line or a moving structural issue, then choose epoxy for strength or flexible polyurethane where water control is the priority. Ports are set along the crack and resin is injected under pressure so it penetrates the full depth of the concrete. In leak-prone Western Washington basements, this stops seepage at the source before it damages finishes. The repair bonds the concrete and seals the pathway water was using.

Benefits

Cracks sealed to stop basement and crawlspace leaks; Structural epoxy that rebonds the concrete's strength; Flexible polyurethane where water control comes first; Full-depth penetration under injection pressure; A repair that protects finishes from future seepage

Our Process

1) Inspect the crack and determine structural versus cosmetic; 2) Set injection ports and surface-seal the crack; 3) Inject epoxy or polyurethane to full depth under pressure; 4) Remove ports, finish the surface, and verify the seal

What Affects the Cost

Length and width of the cracks to inject; Whether epoxy or polyurethane is appropriate; Active water intrusion at the time of repair; Wall thickness the resin must penetrate; Access to the crack from inside or outside

Best Time of Year

Crack injection can be done year-round, and it is especially timely heading into the wet season when leaks tend to appear.