I have an issue that I can't figure out. I have up to an inch of damp permanently around the sides and top of the kitchen window, on the inside edge of the plastic strip used between the window frame and wall. The sill is tiled and I have never seen water on it.
The two sides are more pronounced at the top and tailing off prior to reaching a tile splashback. The damp at the top of the window is a little more patchy but stretches the entire width.
I've examined the sealant and it looks good from my untrained eye. I've re-sealed the outside of the window frame about a month ago with no change, although the only bit of sealant hanging off was near the bottom and wouldn't be the culpit.
I did have cavity insulation installed some time ago which I am hoping isn't the issue.
Has anyone seen this before or has any ideas? I'm not sure what tradesman to call out, a window fitter, builder, damp expert? Any help appreciated.
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