We've had a plumber investigate the flat above, and they reported zero leaks from pipework.
Upstairs also have water coming in around their (newly fitted) window frames.
I think it's water leaking down from the roof, as it gets worse when it rains.
Spot on the ceiling - the room above is that flats kitchen.
Is it a flat roof? Roof, guttering and downpipe inspection, should be relatively straightforward for someone with long enlightenment ladders.
Sounds like something the freeholder should be arranging tbh, but probably quicker for you to get someone in.
@ChasnotRobert started
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We've had a plumber investigate the flat above, and they reported zero leaks from pipework.
Upstairs also have water coming in around their (newly fitted) window frames.
I think it's water leaking down from the roof, as it gets worse when it rains.
Spot on the ceiling - the room above is that flats kitchen.