Deep hole in floor

[DIYWife]

hiya, i got someone in to knock down my wall seperating my living room and kitchen. when they did it left a long deep hole in the floor and i dont know how to fill it, it goes right down into the foundations
please help

 

[mointainwalker]

Before you had your wall demolished, did you check and get confirmation - using a competent person - that this wall was not load-bearing i.e. part of the necessary structure of the house ?

 

[DIYWife]

Before you had your wall demolished, did you check and get confirmation - using a competent person - that this wall was not load-bearing i.e. part of the necessary structure of the house ?

Hiya, yes it was checked and no its not a load bearing wall. Its just the wall that seperates two rooms

 

[ladylola]

So having established that the wall wasn't load bearing (and I'll take your word for that ) it's fair to assume that the wall was taken out to make two rooms into one which means that the two floors need to be matched up.
Next question of course is what are these floors made of, timber , screed , tiles?
Oh and a photo ,if possible, would help.

 

[Space cat]

Next question of course is what are these floors made of, timber , screed , tiles?

And are they the same height? Also, if they're floorboards, which way do they run?

 

[DIYWife]

Its a concrete floor, exactly the same height. Im a bit shocked theres such a gap under my floor but i do live on a incline and wondering if thats why x

 

[ladylola]

Quite correct spacey I did forget that question I just assumed really.

Well I suppose the obvious question now is why isn't the person who took it down also making good? That's the usually course of things or was it just a mate doing a favour? Was it a builder who checked the wall wasn't load bearing just to go back to mountainwalkers point? If it was he should be able to make it all good.
Failing that checking the damp proof membrane on the floors isn't breeched it should be able to make good the hole with concrete or even bricks and screed over the top to level both floor surfaces.

edit
I've just re read your last post , the incline shouldn't make any difference. By a gap under the floors (i.e. the concrete slab)do you mean that the floors have a space under them rather than sitting on the ground?

 

[DIYWife]

Yeah, where my concrete floor is, underneath it is like a 5 foot drop under the house!! I bought this house off my brother and it was a mate of his, he has laminated over the hole the carpeted but where the hole is its starting to dip! When you look in the hole it goes about 5 foot down and is really wide! So cant really fill the hole :s hmmmm im sure ill sort it

 

[ladylola]

If there's a five foot hole under the floor then what was the wall sitting on?
Either way it should be possible to put a board under the floor and held up tight to it to act as a shutter and then concrete it, easier if you have access under the floor but not impossible from above.

 

[Space cat]

When you look in the hole it goes about 5 foot down and is really wide!

I don't understand why the builder(?) saw fit to remove the wall below floor level. This job would be a whole lot easier if the bricks were still there. How wide is "really wide"?

Edit: I'm more than a little concerned now about the stability of your floors. A concrete slab is heavy so there must be some supports down there. Can you see anything holding up the two exposed edges; steel beams perhaps. Use a mirror to get a look or just reach in and have a feel around.

 

[ladylola]

Yeah, where my concrete floor is, underneath it is like a 5 foot drop under the house!! where the hole is its starting to dip! When you look in the hole it goes about 5 foot down and is really wide!

Just reread that bit about the dip. Are you saying it has started to drop recently? If so you sound like you have a big problem.
Follow space cat's advice and have a look and better still hold a camera or a cameraphone under the floor and take some pictures and post them on here. Also can you find a tape measure and tell us how wide the gap is and how thick the floor is please.

 

[big-all]

sounds to me like the 12mm laminate is spanning the gap unaided
could be wrong thought

 

[ladylola]

sounds to me like the 12mm laminate is spanning the gap unaided
could be wrong thought

I'd considered that but if that were the case and the removed "wall" was studding the poster wouldn't be able to see the hole and it wouldn't answer the question as to why the hole is there in the first place

 

[mointainwalker]

As ladylola says

why the hole is there in the first place

Was it there and taking the wall away exposed it ( strange ) or did the friend knock it out ( equally strange ) ?

Lots of questions.

If you allow someone to bridge a room-wide gap with laminate-flooring, is it likely that you would take the trouble/have the knowledge to get someone competent to check the structure of the wall before work started ?

I would guess not.

DIYWife. IMO you need to find a competent professional to examine your situation and certainly don't use anybody who has advised you so far.