DIY Doctor UK DIY Forums

Posted: **Sun Oct 18, 2020 2:46 pm**

I have removed the window trim on the inside because of a damp patch under the window sill. It has revealed what appears to be blocks of wobbly mortar or plaster on the inside with space around it. How can I seal it to prevent the damp? Do I need to remove the wobbly plater/Mortor or whatever it is first? If I do the hole will be bigger.
Thanks guys

Posted: **Mon Oct 19, 2020 5:37 pm**

the large exposed bit at the bottom is wobbling. Is it plaster or mortar

DIY Doctor UK DIY Forums

Preparing to fill wall void to prevent damp

Preparing to fill wall void to prevent damp

Re: Preparing to fill wall void to prevent damp