Latest Discussions : Basement & Foundation


04:40PM | 05/09/03
Member Since: 05/08/03
3 lifetime posts

I was wondering what’s the best DIY method to repair a crack on a basement wall???

The crack spans from the bottom of the wall, in the basement, to the top. One of the previous homeowners tried to repair the crack from the inside to no avail.

I've talked to a few people and they all say to dig down on the out side and repair the crack from there. If this is the best DIY way how should I repair the crack once I’ve dug down?? I’ve heard something like, clean off the wall, use a propane torch to dry the cement, chisel out the crack, but I’m not too sure how to fill it.

plumber Tom

09:22PM | 05/11/03
Member Since: 05/10/03
801 lifetime posts
Are your walls poured concrete or block? Is this the only crack? If they are poured concrete and it's leaking, There is a 2 part epoxy and injection system available. This repair can be done on the inside. A special caulking type gun is used in conjunction with an air compressor, that injects a 2 part epoxy into previously installed ports along the length of the crack. The epoxy is mixed together as it enters the ports, and hardens very fast. After the cure time, the ports are then cut off flush with the wall. I would hate to see you buy all this expensive equipment for a one time use, so you might consider checking around for a reliable basement waterproofing company. They have the proper tools to do the job. Good Luck!


06:28AM | 05/12/03
Member Since: 05/08/03
3 lifetime posts
It’s a poured concrete foundation. I’ve called around to a few places and most will fix the crack for around $350cnd using an injection method. Since I’m a new homeowner and new car owner I was wonting to fix it for as cheep as I can. I was thinking I’d just dig down the foundation and chisel out the crack, fill it with hydraulic cement or water plug or something and maybe tar and tar paper over that for about $100cnd total. It’s a very slow leak and takes a lot of water pounding that back of the house for it to leak.

[This message has been edited by CMack (edited May 12, 2003).]


06:39AM | 05/14/03
Member Since: 05/10/03
2 lifetime posts
Since it's such a slow leak, maybe your $100 could be better spent on getting better drainage outside the wall? Does the ground slope away from the basement wall? Are gutters taking water away from eaves (and then, taking that water far from the house)?

Digging all the way down can be a real chore...OTOH, digging a trench a couple of feet deep and adding perforated drain tile & gravel may remove enough water to starve the crack, without breaking your back...provided there's somewhere to drain the drain tile ;-) Tile is cheap (coupla bucks per 10'), and a friend with a pickup makes gravel cheap ($10-15 per cu yd; one cu yd will nicely fill a 30' trench).

Anyway, before embarking on lottsa work, consider the physical conditions "upstream" of the leak -- if the house exterior isn't set up to drain well, no amount of crack fixing will last for long.


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button