New Basement - Crawlspace dig out and underpinning
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This video was shot over the course of about 6 weeks. We had a 4' crawlspace created into an 8' basement. Work was done by Gary Pike in Newtown Square Pa.
Very good. In Italy it would take us several days just to figure out how to install the camera.
MartinZanichelli
Since I keep getting the same questions, I’m posting my typical response to most folks that email me.
We are located in Southeastern PA so your cost may be higher or lower depending where you live and depends on the conditions of your house.
Cost, we paid 62k for the following: The digout, underpinning, drain for perimeter, floor slab, drylock of all walls, and window egress kit. I spent about another 12k to finish myself with family. I live outside of Philly and it took some time to find a contractor who knew what they were doing. I got pricing as low as 40 and up to 90k. I ended up hiring a contractor who had done this kind of project before.
Also I had a structural engineer provide drawings ($900.00) because with this kind of project you don't want to wing it. We've had some minor settling however the space we gained for us is priceless. We had built up 15 years ago and did not want to move so for us it made sense.
Permits and inspections were ~ 1100.00
For our project, our finished sq ft was ~ 450, we lost some room around the perimeter due to the underpinning requirements.
The digging out took 6 weeks and finishing took me another month or so.
The bobcat was key - yes we destroyed the lawn but that machine made all the difference in speeding up the process. You could hand dig and I've seen videos of people doing it that way but it will take significantly longer.
To date we’ve had no moisture issues. Our perimeter sump has never filled up. Now if you had a higher water table I could see having concerns but for us we’re ok. Some people have asked about water seeping in between the poured sections – well that’s more of a question from the engineer. I suppose that’s why we were required to install the perimeter drain and sump.
Thanks,
Mike
michaelnicolaides
This is interesting. Im in BC Canada. My next door neighbours put in a new basement. But, they jacked the house up first. About two feet. Two steel beams supported by 8 by 8 blocking. Then the bobcat dug out the old basement floors and walls. That took about 3 days. Then formed up the new basement and poured the walls. They were able to put waterproofing on the exterior. Also pipes under the new floor to remove radon gas. A lot of work. But it looks good.
paulnicholls
My house was built in 1836, I would love to do something like this. At some point the cost vs benefit doesn't make financial sense but the intangible benefit certainly does. I love an old house.
nidapaige
That must had cost a fortune &
great work for taste!
Unabridged-jh
Heck yeah, good job guys! Anything is possible. I'd like to know the cost of that project.
erikjpendleton
Great Video!!! It's very clear the method, I'm building a new basement, put it will be piled 6.5m down under my new rear extension. will be around 2.8m ceiling, 26m2. couple of questions, why didn't you get a concrete pump when you laid the floor, and I guess you used 90cm (3') segments for underpinning, with 45cm for the outside corners, to prevent collapse.
nigeltegg
wheres the rest of the video? I was just getting into it and then boom!
jimmystone
You would have to have some kind of sentimental value build with the house. I'd imagine that was extremely costly and not a realistic option for most home owners.. Would just buy a new house with a already good basement lol
moncrt
I didn't see you pour a new footing?
jd
Shame they didn't install a doorway access to the basement, but rather the egress window option. It's a pain to have to walk through the house to get into the basement.
readysetsleep
Could you by any chance give me an estimate of something like this????
