How to seal inside window correctly?

We've been renovating our first property and took off these acrylic window panels to discover the inside windows not being sealed to the edge. As shown on photos all windows have gaps running along edge of frame where the wall and window frame meet. What's the best thing to do regarding this? Considering using filler to seal up the gaps and smooth it off? Many thanks

3 Answers

Jurassic Mastic
0 Reviews
The best thing to do about this is to use mastic to fill the gaps as mastic allows for movement whereas filler doesn’t so mastic won’t crack over time but filler will.
24th Jun 2021
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Jm services
0 Reviews
Should be filled with expanding foam excess removed and window trim and silicone to cover photo not visible to advise what trim needed for a nice finish trim can be glued on with mitre bond
5th Jul 2021
Helpful Answer? Vote Up thumb up + 5
fenhomes@gmail.com
2 Reviews, 100% Positive
Either foam up or sand cement fill then if the gap is wide place a bead over the gap then silicone seal up
27th Jun 2021
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