How to fix this window/condensation? (with Pictures)

[IndiIndiIndi]

Is it plaster around the window that is bubbling/cracking and is all of this due to condensation? How would I fix plaster and seperately the condensation?

if it makes a difference it is single glazing.

thanks

I've got the exact same window in my bathroom.

Loads of condensation forms on it inside because it's single glazed, and I have no doubt your plaster is affected by the wetness.

Could you open the window a tiny bit to allow moisture to escape? I think the damaged plaster needs removing and replacing, then painted with oil based paint that doesn't absorb moisture. (My windowsill is painted with vinyl silk).

Or could you get the whole window replaced with a double glazed unit?

Hi thanks for this, it actually in the coldest bedroom! Bit annoying as I’ve got a dehumidifier running and try and air it out. However probably the pool of water from condensation is doing the most damage.

Try this to stop the water pooling on the windowsill

Get a couple of sheets of paper kitchen towel and a container as wide as will fit onto to windowsill.
Stick half the towels onto the wet glass letting the bottom half drape into the container. Cover all the width of the window.

My theory is that the water will be absorbed by the paper towels and will wick down into the container.

May not work at all, but with luck......

I think those little windows vacs are supposed to be good for getting rid of condensation

Window vac helps loads. It’s all down to the single glazing and the temperature differential I’m afraid. You could try fitting secondary glazing, or some people swear by that window film you use a hairdryer with.

we have massively reduced this by double glazing our old single glazed sash windows.

You can get lengths of upvc windowsill cover from Amazon, we got one for our wooden bathroom windowsill so it can be wiped

No advice about the plaster but it needs a mould bleach spray/wipe and get a Kärcher window vac. Bloody pain. I have single glazed and it's making the paint go very mouldy!

That is pretty bad tbh.

From a making good perspective, you really need to dry that all out, ventilation then bleach products and maybe a window vac, then ( if it was me)set to
it with a lot of sandpaper and probably a chisel to get it back to some sort of smooth ish surface. Then fill it (not water based filler) and zinnser the f out of it, then paint.

But ventilation and keeping windows dry in the cold weather is the cure to it.

FWIW I have a similar problem too.

Mould spray is a good idea, HG spray or the Cilit Bang ones are good. Bleach doesn't kill mould but vinegar does, the bleach just lightens it.