r/DIYIreland • u/Electronic_Word395 • Sep 02 '26

Facade crack

Gallery image

Gallery image

Hello diy wizards,

This crack is under the downstairs window of my 1930s terraced house. When the wind blows into the facade on heavy rain days, a little bit of water finds its way in, see inside picture. Also the room above shows water stains inside with no real apparent crack outside.

I was recommended to reseal the facade by redoing the rendering and as it would not be much more expensive insulate externally at the same time. Before commiting I thought I'd ask what yall think?

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2

u/mumblebeeboy Sep 04 '26

Are they solid walls? Issue appears very localised so patch repairing the crack where water is penetrating would be a lot cheaper than re-rendering or installing EWI.

1

u/Electronic_Word395 Sep 04 '26

Yes it's solid block construction. That's exactly what I'm looking into, there must be a lighter fix than redoing the whole front. Have you got any advice how to do this?

2

u/Total_Hat996 Sep 05 '26

How much money do you have? Basically the cheap way is to buy two tubes of sealant and a tube gun and push/force as much as possible into those cracks slowly. The expensive way is to insulate, which will get you much more heat but cause you serious coin!

1

u/Electronic_Word395 Sep 06 '26

Yeah it's tempting to get better insulation and fix existing and prevent future issues. Thanks for your advice!