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Old 04-16-2014, 11:48 PM   #1
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Replacing entire foundation after duplex house lift


The house is a 1910ish duplex 43' x 32' that has settled approx 2-3' from opposite corners. Foundation walls are stacked stone in poor condition. A center wooden beam 6" x 8" runs 43' down center with 2" x 7 1/4" x 16' joists resting perpendicular on top. The first floor front is approx 12-18" below front public sidewalks. The opposite rear of home the basement is walk out at back yard grade. There aren't any footings under stone foundation and the stonewalls actually have a few steps in their rear to front run up each side of home.
I'm am considering having house lifted and foundation replaced. I would prefer to raise it slightly more than public sidewalk in front but doing so may make the rear elevation raise also. Should I consider a step footing or possibly a shorter rear foundation wall with wood framing.
Concrete block or poured walls are my next question

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Old 04-17-2014, 12:33 AM   #2
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Replacing entire foundation after duplex house lift


You need a good general contractor experienced with lifting houses and replacing foundations while lifted. This is no small job. Nobody could possibly tell you what you need done without 1) knowing where you're located, 2) the construction of your house, 3) layout of the property, 4) any local restrictions, 5) 100 other variables.

Anything can be done for the right amount of money. You have to decide what exactly you want and how much you can pay to get it. The builder can tell you what is possible with what you can spend.

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Old 04-17-2014, 12:45 AM   #3
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Replacing entire foundation after duplex house lift


Not going to be cheap and for sure not a DIY job.
Look in the yellow pages under "house movers".
There going to be able to lift it and most likely will be able to put you in touch with the people that can do the rest.
There's most often no way to live in the house while this is going on.
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Old 04-17-2014, 01:30 AM   #4
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Replacing entire foundation after duplex house lift


Re: it's not platform framing or balloon framing
More like post and beam like a barn. Exterior planks 2" x 12" run vertically from to floor nailed to 6"x 8" sill plate to 4"x 8" ledger at each floor.
Lifting quote was $14k or $24k with stone removed and excavated 2' out around perimeter.
No estimates on foundation costs yet
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Old 04-17-2014, 01:58 AM   #5
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Replacing entire foundation after duplex house lift


Sounds about right in this area.
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Old 04-17-2014, 07:39 AM   #6
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Replacing entire foundation after duplex house lift


I just noticed your user name and location. Is this one of those unfortunate homes in northeastern PA that has been affected by mine subsidence? If so, has a geotechnical study been done in the area? It would be a shame to jack this up and put a new foundation under it only to have it settle again. An engineer to design a spread footing for the foundation may be in your best interest.
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Old 04-19-2014, 04:32 AM   #7
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Replacing entire foundation after duplex house lift


i don't think he's diy-ing this job but just asking for some info i'd jack it higher than the sidewalk, too,,, IF it were mine, there'd be a spread footing IF you have underground soil stabilization issues,,, btw, good catch - whatever you raise in the front suggests you also raise the rear by the same amount otherwise you'll be walking uphill 1/2 the day

step footing may work better but i wouldn't as the form setting costs would offset addl conc so that's a wash to me,,, concrete walls are stronger

irc

Last edited by stadry; 04-19-2014 at 04:34 AM.
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Old 04-19-2014, 11:35 AM   #8
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Replacing entire foundation after duplex house lift


Agree, a poured foundation is better.

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