Depending on the age of your poured concrete foundation and the severity of the foundation or basement wall crack, we may recommend an Exterior Crack Repair as the best method of waterproofing. This treatment requires excavation down to the weeping tile so that we can also check the weepers. Of course this only tells us their condition at that location. If a problem with the weepers is found, a weeper flush may be required. In some cases, a video inspection is required for visual confirmation.
If the problem is confirmed to be plugged weepers, flushing is only a temporary fix. A permanent fix requires identifying how the tile became plugged and correcting it to prevent future blockages from occurring.
It’s rare for an Exterior Crack Repair to fail rapidly. Rather, the material injected into the crack will begin to weaken over time from the movement of the foundation. By cross-stitching concrete crack repairs with carbon fibre staples, this slow creep is eliminated and the long-term performance of the repair is guaranteed.
The area is first excavated, usually by hand, down to the weeping tile
Weeping tile inspection is performed
The cracked is identified
A Bentonite Mastic is applied
A flood boot is installed
An air-gap membrane is applied as an additional waterproofing shield and to relieve hydrostatic pressure
Drainage stone is added
Native soil backfill is replaced and compacted
If there are obstacles in the way, our estimator can arrange to have the area cleared. Every effort is made to avoid damage to more of the surrounding area than is necessary. Utility locates will handled by our office. An exterior crack repair is considered a permanent repair and as such is backed by our transferrable Written Lifetime Warranty. Call for more details.