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Old 09-22-2012, 06:40 PM   #1
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Basement waterproofing


ok guys, so I had a basement leak and I paid these foundation guys to come waterproof it... long story short, they covered one side with the platon membrane and installed a sump it on the inside, this fixed the leak in that part but they also told me the rest of the house has no membrane and could leak too with time. Now, these guys aren't cheap, charging around 120 per feet, it cost me 8,500 already and they want another 15,000 for the rest of the house...

I figured their job is not that hard and I have enough diy experience to tackle this on my own...

I am planning to hire an excavator to dig all around the house for a day or two, which will run me around 1-2K max, and then buy the waterproof membrane, as well blue skin (which they didn't use).
Once the house is excavated all around, I will clean the walls, apply primer, stick the blue skin and then put on the waterproof membrane... Finally I'll replace the weeping tile, put stones all around and ask the excavator to refill the house and compact the soil.

I will use this opportunity to slope patio stones away from the house as well, since some have settled.

I figured with the excavator, membrane and extra blue skin that they're not providing, this job will run me 4k max... I will be getting help from 3 of my friends as well, who know what they're doing...

Now my question is, I haven't read a lot of diy on this, but it doesn't seem to be that complicated... on top of that, to my advantage, the foundation on this house is only 4 feet deep so works out to be a lot easier than going 8' deep.


Let me know what you guys think recommend or warn about

Thanks

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Old 09-22-2012, 07:03 PM   #2
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Basement waterproofing


Sounds like a good plan and should work better then trying to deal with the water after it has made it's way into the basement.

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Old 09-22-2012, 09:24 PM   #3
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Basement waterproofing


Sounds like fun, I must say.

But before doing all of this work, do you have any suspect of the source of leak?

Let me put it this way, a friend of mine was also in a similar situation as yours. He ended up finding the source of this leak is from gutter work NOT channeling roof water away from the house foundation. In fact, he solved his problem by adding a down spout and turn out.

Just thought to have you double check before starting the work you described - that's all.

Good luck!
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Old 09-22-2012, 09:46 PM   #4
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Basement waterproofing


Don't know where you live, but you may want to formulate a strategy to handle rain while your foundation is exposed as the surrounding dirt might cave in during a downpour.

Good luck and post some pictures!
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Old 09-22-2012, 11:30 PM   #5
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Basement waterproofing


Thanks guys for the positive feedback... the original leak was fixed by the guy that came in, but considering the house is cinder block and has no waterproofing, the work I'll be doing is preventive for the future, I figure this will take me 5-6 days (to be safe) and it won't do anything but help in preventing leaks, peace of mind and even bringing up the resale value...

Thanks for the comment on the rain, that's my only concern hehe... I will try to check out the forecast, I also figured the first step I'll take is to set up the weeping tile so that catches as much as possible and try to do the primer/blueskin asap.

I will try to create a blog about this and take photos/videos so it helps any Diyers in the future for sure...

it's definitely not right that these guys charge $150/ft when it's only excavating and putting on a membrane... homeowners panic (like I did) when they see a leak, and these guys take advantage with exorbitant prices
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Old 09-23-2012, 07:29 AM   #6
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Basement waterproofing


QUOTE: Let me know what you guys think recommend or warn about

************************************************** ******
I'd be doing a little research on soil compaction when back filling. This area is often where a supposedly good job turns sour and the sour isn't realized until some time later, often much later.

There is some good information on the net but if you aren't comfortable with it there isn't anything wrong with consulting with a soils engineer to get it right. If the type soil you have settles from too little compaction or the walls bow in from too much compaction you'll not be solving the problem.

When excavating the full perimeter with equipment, locating utilities both above and below the surface is a must to avoid set backs or worse.
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Old 09-23-2012, 08:14 AM   #7
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Basement waterproofing


One thing to consider:

Don't fix what's not broken.

Often in time home owners get too proactive in the way they "fix" things, and wind up with a mess in their hands.

As for the pricing, how did you come to conclusion that 150 a sf is too cheap?
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Old 09-23-2012, 04:03 PM   #8
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Basement waterproofing


[QUOTE=Fairview;1015551]QUOTE: Let me know what you guys think recommend or warn about

********************************************

Hey Fairview,
Thanks for the tip, I'll definitely read up on that to figure it out, thanks! I was going to get extra top soil too to compact and slope it away from the house. As far as utilities, I'm definitely doing locates but there is a well line, so I have to dig by hand around that area, which will be tricky hehe
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Old 09-23-2012, 09:33 PM   #9
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Really interested how this turns out. I have an interior french drain, but I plan on excavating on the outside. The hardest part is the digging. I did some research too, for the dimple membrane look up "delta ms membrane". Gl.
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Old 09-24-2012, 09:42 AM   #10
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Quote:
Originally Posted by oodssoo View Post
One thing to consider:

Don't fix what's not broken.

Often in time home owners get too proactive in the way they "fix" things, and wind up with a mess in their hands.

As for the pricing, how did you come to conclusion that 150 a sf is too cheap?
I meant $150/ft is a ridiculous amount to pay, as in too much...

I agree with you in not fixing what's broken... trust me, if I didn't have to do this, I wouldn't... but I found out the house is made up of cinder blocks, who are proen to leak with time, and it's sitting on a bedrock, which doesn't hep with the drainage... as well, since no membrane was put in and there are a few "problem" areas, I figured it's better to be preventive than wait until I get another leak and face emergency repairs.

I wouldn't recommend doing this to others, but my key advantage is that the foundation is only 4 feet deep and I and my friends have enough knowledge to get ourselves into this...
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Old 09-24-2012, 09:43 AM   #11
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Basement waterproofing


Quote:
Originally Posted by rygamer View Post
Really interested how this turns out. I have an interior french drain, but I plan on excavating on the outside. The hardest part is the digging. I did some research too, for the dimple membrane look up "delta ms membrane". Gl.
Hey Rygamer,
Thanks for the name, I'll read up on it, the two that I am looking at right is the platon membrane and the super seal... I think all of them are probably the same thing just dimple membrane

I will be putting that on the footing as well though just to be safer so extend from the wall to the footing (same thing with blue skin)
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Old 09-24-2012, 10:37 AM   #12
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Basement waterproofing


Others have mentioned about looking for simple problems. Before digging, I would make sure that all your downspouts are connected and dumped far away from the foundation.

My basement wall is also made of cinder blocks and I used to have these nagging small leaks. Once I hooked up the downspout to a 4" corrugated pipe to drain far away from the house, I no longer had any leaks, even during a downpour.

Good luck!
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Old 09-24-2012, 11:51 AM   #13
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Basement waterproofing


Quote:
Originally Posted by rygamer View Post
Really interested how this turns out. I have an interior french drain, but I plan on excavating on the outside. The hardest part is the digging. I did some research too, for the dimple membrane look up "delta ms membrane". Gl.
If your excavation will be more than 5' deep , some research on trench cave ins may be invaluable if you aren't familiar with that subject.
Each year people get buried alive and often die just from the lack of knowledge or their safety attitude when excavating.
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Old 09-24-2012, 01:28 PM   #14
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Basement waterproofing


Also if your wall is currently bowed, chances of a blown out wall increases.
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Old 09-24-2012, 02:34 PM   #15
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Basement waterproofing


Can you elaborate on the wall bowing issue? Now this part I am not aware of, if the wall is bowed or not, so how do I go about this? because I'm worried with time, since there is no waterproofing of any kind around the house that eventually water will find its way in some place that hasn't been waterproofed, but I also don't want to weaken the foundation if the walls are bowing...any suggestion would be appreciated

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