And it's lifting. Our living room is turning into a trampoline. We've only been here six months and it was fitted by the previous owner, badly.
So, we've had a couple of people around to have a look at it and been told we'll have to replace the entire 25sqm floor 😐 It's obviously not very old and this seems like a really expensive and wasteful way forward. Another chap told us he could take it all up and then glue it all down individually but this would take a week, but then we never heard from him again.
Soooo, to get to the point, is there any just cutting an expansion gap and then weighting down the lifty floor?
We had this with our badly fitted oak floor. DH got a joiner around and he strategically cut out a small strip from the sides of the walls. This allowed it to expand. There are a few places where it doesn't look great but it doesn't bulge and we didn't need a whole new floor. We've put a small bit of trim over the join and it covers most of the issues.
I second fart . A good floor layer or carpenter will be able to cut some gaps round the edges for you in order for the floor to expand. It should in time flatten back down. Any gaps can be covered with a bit of beading.
Don't worry, we had this too - DH didn't leave a proper expansion gap when we fitted the floor, and after 6 months or so it started to lift. He used a router to cut a gap where it had pushed up against the wall, and after a few weeks of walking on it, it was all flat again. No problems since, and it's been down for 9 years.