From what I understand and have read it is not a good idea to seal walls of from the inside because you will just trap the water in the walls. What they do here in my county (Germany) if you don't have the means to excavate the whole building is to push a liquified compound through holes drilled from the inside which then saturates the walls, stopping water from coming through and providing thus an outside seal.
With some technical skills its possible to do it yourself. E.g. see this description of the barrier in EN. The link describes a seal-off for humidity coming from the ground, but another option (vertical barrier) exists. Same process, just more holes.
Also, why don't you get a company to judge the situation and make an offer? And then use their knowledge for your own gains. You don't have to pay them for the full job, they will just take some money to have an assessment which they will give you in writing or directly. But sound interested. And in the end, you just happen to find somebody else or change your plans ;-) .
doskey123 t1_ja8s08e wrote
Reply to Waterproofing and insulating interior basement by Mr_brighttt
From what I understand and have read it is not a good idea to seal walls of from the inside because you will just trap the water in the walls. What they do here in my county (Germany) if you don't have the means to excavate the whole building is to push a liquified compound through holes drilled from the inside which then saturates the walls, stopping water from coming through and providing thus an outside seal.
With some technical skills its possible to do it yourself. E.g. see this description of the barrier in EN. The link describes a seal-off for humidity coming from the ground, but another option (vertical barrier) exists. Same process, just more holes.
https://www.isotec.de/en/workmanship/sealing/horizontal-barrier.html
Also, why don't you get a company to judge the situation and make an offer? And then use their knowledge for your own gains. You don't have to pay them for the full job, they will just take some money to have an assessment which they will give you in writing or directly. But sound interested. And in the end, you just happen to find somebody else or change your plans ;-) .