My question is about basement waterproofers. I have a problem with my basement flooding, and a waterproofing company charged me $14,219 to correct it. Two of that firm’s inspectors insisted that underground water was being forced up into the cellar via hydrostatic pressure and only a French drain would correct it. So the basement waterproofers installed a long, deep ditch running alongside the interior of the home’s foundation walls. In turn, that graded ditch was supposed to gravity-feed rising water into two underground electric pumps (at opposite ends of the basement) and eventually pump incoming water into the city sewer system.
On the other hand, I felt the water was coming from the surrounding earth through a rather thin foundation wall, and slowly running down into the cellar doorway. Now it seems that I was correct. The basement waterproofing company is stalling, wanting to take photos and “brainstorm” their next move. Do you have any suggestions about how to deal with these basement waterproofers?
This scam is common to so-called basement waterproofers, and unfortunately, it sounds like you've been taken in. These snake-oil salesmen use high-pressure sales tactics and scary words like hydrostatic pressure to push consumers into hiring them for expensive and almost always unnecessary repairs.
Let's examine the claim that forms the basis for the frightening prospect these basement waterproofers pose, which is that your home will collapse from the pressure of the water against its basement walls. In order for any water on the outside of your foundation to get to the drains they carve into your basement floor, the water has to run against the foundation walls and then leak either through the walls or under the footing below the walls. Hence, your foundation walls are subjected to the very same hydrostatic pressure either with or without the basement waterproofers' fourteen-thousand-dollar solution.
Had these basement waterproofers been more honest and impartial with the diagnosis of your basement leakage problem, they would have examined your exterior drainage conditions. As you correctly point out, basement waterproofing has more to do with the condition of the surrounding soil and, more importantly, the functionality of the gutter system on your roof than any subsurface drainage system does. The type of system they installed is needed only when the problem can be traced to a rising underground water table. This is rarely the case and is easy to spot. If your basement leaks are consistent with rainfall or snow melt, the problem is not a water table but a drainage issue that can easily be corrected without spending a pile of cash.
My advice is to speak to an attorney. You may be able to sue the waterproofing contractor for not correcting the problem and for fraud, which makes you eligible for treble damages. Only through actions like these will mostly disreputable basement waterproofers stop taking advantage of countless victims like yourself.