Hi all,

Just ripped all the tiles off my kitchen wall prior to new kitchen going in. Most came off relatviely easy with little damage to plasterboard. I shall be filling with a polyfilla type substance any areas with damage before tiling new splashback.

The tiles on the window sill however were not so co-operative. I had to literally pull the plasterboard up along with the tiles, meaning I can now see the breeze block underneath and the bottom of the window frame screwed down. My question is, do I have to lay new plasterboard on the window sill, or can I just use thinset to repair the sill and square it off, and then when I come to tile it, just tile on top of this with more adhesive? Also in respect of repairing the wall damage, is polyfilla type substance suitable or could/should I use thinset also?

Cheers
Jimbob

dot and dab new board or cement board. I actually cemented mine when I had same problem

You can also use some off-cut tiles to pack out the window a bit if need-be but make sure you use cement-based for that bit if you're going down that route. Plasterboard or cement board would suffice also if it's quite bad.

Any pics?

I'll try and post a couple of pics later, but i've had a bit of trouble getting pics on here recently - possibly because the wife's camera is HD so the file sizes for the pics are huge

Wey hey, I've finally managed to upload some pics
First 2 are of the offending window sill.
3rd is of the wall, where the previous kitchen fitters had cut long gap in plasterboard to fit counter top into - I intend to leave this as is in the hope that the new counter top will slide into the gap nicely
4th photo is the concrete floor - this seems pretty smooth and flat, so prior to tiling I was thinking of just running over it with a damp sponge to get rid of excess dust
5th photo is of damage to plasterboard due to tiles being difficult to remove. I am going to fill this with normal filler prior to the new kitchen being fitted, and then tile splashback as normal
If any of this sounds daft, please let me know!
Cheers
Jimbon

use some plasterers bonding to fill all the gaps,get it in 20kg bags for £6 in b and q but prime it all with sbr.Mapei primer is good also available from b and q.

I would be tempted to skim that wall before tiling

just had another look...could even re board that wall.

It will be cost effective to by a small sheet of plasterboard and a bag of board adhesive and fix that to the cill. The remaining board adhesive can be used to fill any holes in the front wall.
Looking at your photos you have at least 15mm to build up on the window frame to get the tiling back to where it was.
Having said that you may want to wait until you have your new worktops in place and once you have chosen the wall tiles you may find you are able to build the window cill up/down to the full tile!

Timeless John.

widow sills not that bad to fix, been expected to tile fresh air before lol

Thanks guys.

Don't really have time to get a plasterer in to skim, as the kitchen is going in a week on Monday, and don't really have time to reboard anything as I am away next week at NETT!

I will try and pick up some plasterers bonding to repair the worst bits, but the rest is relatively smooth - i have got most of the adhesive off, so should be ok to tile on to.

As for the cill I shall buy some plasterboard to fit onto it, but I think I'll wait until the kitchen is in and the tiles are going on so I can maybe adjust the height, as suggested.

All best
Jimbob

Originally Posted by brian c

use some plasterers bonding to fill all the gaps,get it in 20kg bags for £6 in b and q but prime it all with sbr.Mapei primer is good also available from b and q.

A couple more questions please, if I may..... When you say "prime it all with SBR" do you mean prime the walls AFTER I have repaired them with the plasterers bonding and before tiling, or do you mean mix the SBR in with the water/bonding powder and apply to damaged areas, or both?

Is bonding plaster ok to tile on to later? I'm sure I read an old thread with Dave saying he doesn't use it as the tiles don't adhere too well to it (I may be mistaken there)

Thanks again for all replies

Prime the wall before you use bonding sbr or pva to the wall, it's a low suction plaster and any suction could cause a failure because of the moisture being sucked out. On small patches I've tiled onto but primed with an acrylic primer, any larger areas need a plaster finish.