Cill replacement on sash windows.

Sep 14, 2006 4 Replies

So far so good - all the rotten wood stripped out and new wood being cut ready to fix in to the cut out sections.



What would be the best waterproof glue/sealer to put on the bottom of the cill to stick it to the concrete base - I was going to use a combination of long screws from the inside and ordinary wood glue to pull the new bits in tight which is fine laterally but not horizontally.



TIA


but not vertically . . . .

DOH!

Not a method that has ever worked for me. The new bits move and create gaps where they join the original, and any filler able to withstand that kind of flexing is too different in texture. Whole sections like cills are ok but not smaller bits.

I use car body filler for this kind of thing.

Yes best either to bodge with filler and give good paint job, or to do a proper job and remove/rebuild window.

Thanks - the bits I'm fitting in are just over a metre each which I think will go in pretty cleanly (hopefully!) with the inner join literally just under the sliding sash window.

We'll see!

Cheers

Buzby

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