#1 Underpinning Basement | Basement Floor Lowering | Toronto (2014)

Lowering basement Toronto, Basement Underpinning Toronto, Underpinning basement contractors, Basement Floor Lowering contractors, Lowering basement Processes:
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[@davidparker2173]

I did not see any forming of new footers at the base. An inside drain system was suggested. I also did not see the removal of the old footers, but maybe you would just trim those to be a little thinner. I can see problems with doing all of that from inside. I think that it would require working from outside as well to to it right, even if you could place permanent plastic forms for new footings, you still need to be to be outside both to form and to cover the new walls, not to mention outside drainage. It is made to look a lot easier than it is.

[@StrongBasements]

This video did not cover the whole basement lowering processes, just an underpinning part of it. Of course the lowering process includes drain line replacement, interior waterproofing system and a sump-pump. Again, the purpose of this video is to show the part of Basement Lowering process in Toronto, Ontario. To lower the basement floor the excavation have to be done from inside and all the excavated fill would be permanently disposed to gain the extra space. All forms and concrete pours should also be done from inside. If the purpose of foundation underpinning would be to to reinforce structure not making the basement bigger then yes, all excavations and forms would be done from outside, to avoid unnecessary demolitions of interior. But even if the purpose of underpinning is structural reinforcement the save way is from inside, bcs. the foundation wall stay undisturbed. If you excavate foundation wall rom outside and under it doubles the chances to collapse.
About cutting out old footing: The engineer specifies the methods of underpinning based on the structure condition and design. If the foundation is fresh and strong so non-srink grout method is recommended to be applied to the whole foundation footing area. If the footing is weak then its better be removed and concrete over-pour method will be applied in this situation. But again the underpinning method in Toronto is determined by structural engineer, before the construction!!!!

[@davidbrooks1398]

Old footers are poured under, not removed. The 'underpin' itself is the footing in these cases.

[@amaurycruz5512]

I work in a construction company in New York and we done many underpinning in houses that you don’t have room to work outside because they to close and we have to do everything from inside.

[@amaurycruz5512]

Anyway everything have to be approved by an engineers in the building department.

[@swilhelm3180]

@@amaurycruz5512 Isn't it a lot more difficult to work from the inside only?

[@dalatinking]

Fantastic and very informative video, thank you for the straightforward explanation!

[@elizabethjones7691]

Great Video. Foundation Experts in Pennsylvania and New Jersey performs the project in a similar fashion.

[@StrongBasements]

Basement Underpinning and Floor Lowering | #basementrenovations #basementconversion #basementlowering #basementunderpinning #basementfinishing

[@swilhelm3180]

That was very well done. But I wonder why you chose to use such small windows?

[@mikejmcc1970]

If you are forming tight to the old foundation how are you sure the concrete is filling the form all the way up tight to the bottom of the old foundation?
I assume you hold it off a few inches?

[@StrongBasements]

There are two main underpinning ways:
1) As you assumed, 2" of free space left between original foundation and underpinning section. Aster newly poured concrete section dries (48 hours) those 2" of space are being filled up (strongly packed) with special 'non-shrink' grout.
2) No space left, only the hole on top, big enough to pour the concrete trough. After the section is completely filled up with the concrete, special vibrator is dipped inside. The vibration pushes out the air bubbles and force the concrete to fill all voids in the section and foundation.

[@jcpaul6824]

I live in a 3000sq home in missisauga. Ballpark figure, how much would it cost to have done EXACTLY this process on a home of my size?

[@StrongBasements]

Hi Paul,
You can calculate approximate price by square footage of the basement ~ $80 per square foot, or by foundation length ~$400 per linear foot of foundation wall.

[@artbyrobot1]

did not show footers

[@OshawaStateOfMind]

hello my fellow Canadian, looking to get into the under pinning business, is there a lot of competition out in Toronto? ?

[@StrongBasements]

For now it is every plumbing , waterproofing, concrete or even landscaping companies are trying to be involved in this business. Even handymen take this kind of jobs. They drop the prices, take jobs ant more often can't successfully complete it properly. Plus, now the real estate market stopped growing and people do not invest in basements as easy as before. Means even more competition. But, if your friend is a very good, licensed and insured professional, and he has a customers source, he may succeed.

[@davedrolett6890]

Have anyone tried this in the State of Florida?

[@TheDobsonic]

Less spinning around would help. I got a headache.

[@jaro2450m]

Nice cartoon

[@StrongBasements]

Thank You!

[@swilhelm3180]

@@StrongBasements Your 'cartoon' was clear and informative. Perfect application.