DIY Doctor

Help Needed on How to Seal Window Frame to Brick / Concrete

Postby Diynoob » Mon Apr 13, 2020 9:33 pm

Hello, first post, wondering if someone can help me with some advice:

I'm not an experienced DIY'er at all, and am confused about my options to seal a gap I have between my wooden sash window frame and the exterior brick wall (the edges I would be sealing are mortar or concrete I think!).

There are plenty of caulk options out there that I can find but the problem is that the gap between the window and the wall ranges from about 3mm to about 10/15mm in a few places which is too wide to fill with silicone caulk?

Any help at all would be gratefully received!

Thanks.
Diynoob
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Postby stoneyboy » Tue Apr 14, 2020 9:09 pm

Hi diynoob,
Buy or better still borrow some expanding foam for the larger gaps. Once set, trim and use silicone caulk to give a neat finish.
Regards S.
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