262-790-1085

      General Information

Poured concrete foundation wall are considered the way to build in this area of heavy clay soil.  Clay when wet expands and it exerts a lot of pressure on basement walls.  Because poured walls are a monolithic structure (one piece) and are anchored at the top by the pressure treated lumber plate and at the bottom by the poured concrete footing, they resist the pressure that causes cinder block walls to be bowed and the mortar joints to open up letting water into the basement.

Poured concrete walls, while resisting this ground pressure, do crack from shrinkage and settling.  While not affecting the strength of the wall, these cracks may leak water.

The Injection Process

Most active leaking cracks are repaired using a moisture cured urethane, two package grout.  This material reacts with water causing it to foam.  Starting at the bottom of the crack, injection holes are drilled 4 inches from the crack at a 45 degree angle, hitting the crack in the center of the 8 inch wall.  Holes are drilled every 8 to 10 inches.  Injection ports are placed in the holes and the injection process started from the bottom and worked up the wall.

As the urethane grout meets the water, a chemical reaction takes place generating CO2 causing the material to foam and be forced up the crack.  The resin forms a high density, closed cell structure that is resistant to water, most chemicals and insects.

The excess material is cleaned off the wall and the injection ports broken off and the holes patched and the wall will be dry.  This process can stop running water.

Epoxy injection is similar but it requires a dry wall as water will affect the adhesion. 

The urethane injection process is safe and is used in treating concrete water tanks and water lines to prevent ground water contamination.

This is also a recognized foundation repair for building codes and home inspections.

Low Cost

Most repairs can be done for under $500 and are guaranteed.

For questions or quotes, please call Mike Foster at 414-531-9057.