I have two new windows fitted, both windows have damps at the bottom of the windows. how do i fix, window gutters are saying they have never seen this before and refusing to fix thank you
I have two new windows fitted, both windows have damps at the bottom of the windows. how do i fix, window gutters are saying they have never seen this before and refusing to fix thank you
It’s caused by a lack of vertical DPC on window reveal.
or window not sealed properly externally and rain water getting through gap.
could even be a cill issue.
Why is your window reveal so narrow - are the windows set back by the depth of a brick and sitting on a stone cill externally (maybe house is Victorian and originally had sliding box sash windows).