Mark, and what you said IS a chunk of the problem is this business, in MOST cities ‘no one would ever excavate’, right. That’s because in this business almost all of the companies/contractors are interior system bubblehead ripoffs.
So the supposed ‘standard practice’ are scammers, yep, no doubt, zero in my mind.
Say again since most in this business have bullshitted most others, they are allowed to carry on their INT water-diverting, rerouting games.
Grand Rapids, Lansing, Flint, Detroit, Ohio, Indiana etc etc, when homeowners SEARCH for an honest exterior waterproofing contractor what they find is, all or just about all that are left in this business are INT system co’s, and that is because of several reasons, one is throughout the last 20 or so years, the young ones who got into the business as a laborer for an INT company ONLY learned how to play water diverting games inside peoples basements, that is all they learned working for Everdry or B Dorks and when they quit and went on their own, then of course this is what they do, has NOTHING to do with having total knowledge and being competent on this subject.
Secondly, there is much more money $$ to be made by those who install INT systems because they need much less labor $$ and there is much less materail costs involved hence, THEY make more money and often charge as much or more than exterior waterproofing.
And there is less risk invloved for them, no 6’ etc trenches they’d otherwise have to deal with, shtt most of those INT don’t have/carry insurance on EXT waterproofing so of course spinning and lying to homeowners about a supposed need for INT system is all they will push onto homeowners n anyone else. It’s total BS, it is a scam, always has been a scam.
Their risk n i doubt most of them don’t get-it, is when they j-hammer the perimeter floor out, doing that can weakened the wall or cause a foundation wall to collapse in, idiots. The floor helps hold the wall in-place.
short video, BOWED IN wall, leaks, seeps inside where the floor meets the bottom of the wall.
per this video, see the multiple exterior cracks? lolol B DRY or Foundation dorks etc do NOT repair/waterproof ANY of these cracks, they never have, nobody can by installing an INT system! hahaha = incompetence. Clay soil and some underground tree roots CAUSED the wall to bow in, caused the cracks which then allowed water in basement!
They simpy do NOT understand shtt or care to.
B Dry etc do NOT relieve, remove ANY PRESSURE acting upon these walls on the outside, you have to go outside in order to accomplsih that! lolol