Repairing a Limestone Foundation
By onthehouse on May 22, 2014
I have an older home with a limestone foundation. The mortar between the stones has started to deteriorate. Can I use something to fill in the holes?
First, using a screwdriver or chisel, remove any crumbling or loose mortar. You don’t have to remove all the mortar – just anything that’s moving.
Once this step is complete, purchase mortar mix and follow the mixing instructions on the package. Use the paste and your best and most expensive tool – your index finger – to fill and patch the gaps.
Since you’re repairing a foundation, the color of the mortar might not matter, but in a case where you want it to “match” you can simply use latex paint and an artist’s paint brush to get an exact match.
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