UPVC Trim was hideous. What to do now?

7 Mar 2019
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United Kingdom
Good afternoon all, I removed the horrid upvc trim from around my windows to reveal these beautiful gaps.... I was going to install thinner wood trim as the trim that was put there was excessive, but I would prefer to have a flat surface rather that trim at all.

Is it possible to fill with bonding over this foam, then smooth over the rest with easifill and paint, or will it cause any problems?

Any help is appreciated.


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That cavity can easily be filled. You sometimes get slight cracking where it meets the frame, however if you run a bead of silicon all should be good.
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