Defective Sleeper Wall

[alanthomaswatson]

All

Grateful for some builder's input.

The floor in our dining room slopes toward the centre of the room and there are a few areas that appear slightly 'soft'.

The floor is covered in Karndean so i haven't yet lifted it to figure out what's going on.

The dining room floor is a timber suspended floor (the house is ~1900). There is no access to the void, apart from to take the photo I have attached. It seems that part of the sleeper wall has been removed and the sole plate replaced with a newer timber beam (the end of the beam is visible to one side).

Am I right in thinking this is the likely cause of the movement in the floor?

What would be the best way to overcome this - rebuilding of the sleeper wall? If so, does anyone have an idea about cost?

Any help much appreciated. View media item 34691 View media item 34691
//www.diynot.com/network/alanthomaswatson/albums/9011

 

[Master of None]

Found the same thing in my house when I went under the floor. I suspect a plumber or electrician has knocked it down to gain access from one side to the other. I jacked up joists with hydraulic car jack and rebuilt with bricks and mortar with gaps in brickwork for air flow.
Hope this helps.