DIY Doctor

Can’t Drill into Standard Brick Wall

Postby llama_with_a_hammer » Fri Dec 27, 2019 4:43 pm

Hi all,

We’ve just moved into a 1930’s detached and have an issue with bizarrely hard walls which I can’t drill or even hammer into.

It’s standard brick with what looks like original internal plaster. I’ve tried drilling and can only get maybe 10-15mm in before the bit hits something hard and stops.
Likewise with picture hooks, they go the same amount in and stop, but the sharp nail tips are absolutely mangled when you pull them back out.

I thought at first it must be hard brick, but I have installed a doorbell and had no problems drilling into the brick from the outside, so I’m thinking now there must be something between the plaster and brick...

I’m not hitting plumbing or electrics, and I’ve tried in several spots all over the house so hitting random pockets of whatever would be highly unlikely.

What could be lurking underneath and how do I get through it?!
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