3' hole through my poured concrete foundation

christophersprksJanuary 24, 2010

Hello folks/Professionals,

I need to drill a 3" hole through my poured concrete foundation below grade.

It's a poured concrete foundation constructed back in 1954 with a sprayed membrane for waterproofing. I have been in this house for 14 yrs. and we've never had any water problems.

Ok, I think thats enough background on the subject.

The actual question is:

How close to the corner would be safe to drill this 3" hole without repercussions?

Of course I will seal the hole back up with a mortar and use something to waterproof it.

Any and all suggestions will be appreciated

Thank you for reporting this comment. Undo

A single 3 inch hole has no significant structural effects, especially if it is not near the very top of the wall (at least 6 inches below and it sounds like you will be down a decent distance).

A concrete coring company would be a good investment.
They will use diamond coring bits to create a smooth hole with little chance of damage from hammering.

    Bookmark   January 24, 2010 at 11:35AM
Thank you for reporting this comment. Undo

Thank you for your speedy reply.

    Bookmark   January 24, 2010 at 11:52AM
Sign Up to comment
More Discussions
Hot water radiators
We own a 1900 home which has forced hot water heating...
Sanity check: Huge window & shutter repair/replace bill?
Hey folks! I am the proud new-ish owner of 1740s brick...
Unique Craftsman trim & wainscotting Examples, Info, Opinions
I am looking for examples of unique craftsman and/or...
Corbin Dodge
Plaster stamped like tile?
My house was built in 1915. I am tearing out some 60s...
This old house plus church!!
Well I need someone to talk with about my latest plunge....
Jason J
Sponsored Products
Premier 3 Foot Oval Hanging Pot Rack - PR16BWG-SS.
$939.99 | Hayneedle
Grill Master 8-piece Seasoning Set
$50.00 | FRONTGATE
Blakely Antique Gold Three Light Vanity Fixture
$145.00 | Bellacor
Fresca Vista Teak Modern Bathroom Vanity w/ Medicine Cabinet
Hudson Reed
Three-Light Lily White Accent Lamp
$97.20 | Bellacor
Rachel Ray Purple Stoneware 3-Piece Dipping Cup Set
Baja Circles Indoor/Outdoor Rug 2'3" x 4'6" - NAVY
$59.00 | Horchow
Pizza Stone Scrubber
$7.99 | zulily
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™