I remember talking with a property manager outside Brainerd, Minnesota, who had ruthlessly dealt with recurring lower level moisture damage on a commercial building for three years running. The foundation wall had been treated twice with basic brush applied sealers. Neither application held through a second full freeze thaw cycle.
When we meticulously assessed the building, the primary moisture path wasn't through the foundation wall face at all; water was stealthily entering at the wall to footing transition below grade and traveling laterally across the slab before wicking rapidly up through the wall assembly above it. The useless sealant had been applied four feet above the actual entry point.
We aggressively excavated the transition, applied a robust spray applied membrane to the full foundation perimeter, heavily including the footing transition, installed a proper drainage plane, and safely backfilled with properly graded material. The lower level stayed bone dry through the following two winters.
Foundation waterproofing that holds requires comprehensively reading the full moisture pathway, not simply treating the wall face where the damage visibly shows up.
Technical Construction Solutions was rigidly founded by Freddy Lewis, who grew up heavily in a highway construction family and spent 15 years working directly in the field before building TCS around powerful foam and spray technology. That foundational construction background shapes exactly how this crew approaches every single foundation waterproofing project: full pathway assessment first, system selection second, and precise application third.
If your foundation is actively dealing with recurring moisture intrusion, catastrophic interior water damage, or a previous waterproofing application that failed ahead of schedule, a free estimate is the only right starting point.