My front door has no threshold support (Ed.)

[threedee]

We recently moved into this house and still discovering corner cutting in building quality. House is built in 1999/2000.

So, i decided to replace my 25 year old front door (upvc) to composite.
Surveyor comes in to measure up and upon lifting top step of entrance we discover my current door hanging in midair not resting on anything.
There's a gap of 10 mm between badly placed, too small of a block in the middle, effectively making a levitating door with bendy threshold on a bottom frame.
Also voids on both sides under floor so long i can stick my hand in there, there is NO support at the bottom at all...

I need ideas how to fix this without wrecking the place...

Wasnt there supposed to be some sort of threshold block there ?

 

[freddiemercurystwin]

@crank39
@ronniecabers

 

[johnny2007]

You have to ask the person who will fit your composite door.
Then you won't have any issue.
But obviously I would like to see my front door frame supported at the bottom.

 

[Alec_t]

I need ideas how to fix this without wrecking the place..

Shove 10mm of slate/tile under the threshold?

 

[Diver Fred]

I think that the bricks that formed the step need to be removed, maybe even the slabs lifted to see what is at the back of the step. Houses built then should have wheelchair access as standard (i.e. no step at the threshold).
What are your neighbours doorways like? Similar or different? Where is the DPC?

 

[threedee]

Talked to one of my neighbors, they replaced door some years ago and it was the same as mine.
I'd like to see what a properly built entrance should look like. At the moment i'm thinking just pouring a concrete slab under existing door, leaving maybe 5mm under the frame to get a level surface for the incoming door to rest on.
As for disabled ramps/access, all the houses in this estate have pretty high floor level.
Need to do some more research on how this should be done...

 

[Harry Bloomfield]

So, i decided to replace my 25 year old front door (upvc) to composite.

Interesting that, I always thought upvc, was the same thing as composite, but they are not. So I just investigated my front and back door, and from what I can tell, they are both composite.

The door in the photo post #1, appears to be upvc.

 

[Notch7]

It looks to me like the door frame is fitted more or less inline with the cavity and the external brick facework was removed for the step.

It’s probably best to remove that middle block and the next row of bricks so you can access below the door frame. You could just fill with concrete, but you need to make sure there is some DPM against the inner skin of the blockwork to prevent damp. Can you see the DPM for the internal floor slab? (Assuming it’s a slab and not suspended floor)

 

[freddiemercurystwin]

Houses built then should have wheelchair access as standard (i.e. no step at the threshold).

Nope, no such requirement for houses built back then.

 

[Diver Fred]

Nope, no such requirement for houses built back then.

In that case how come house opposite me, built in 1998, all have 'No Step' entry where the out side and the inside are flat.
The purchasers all complained that they did not have a means of stopping rain water being blown under the doors.

 

[freddiemercurystwin]

Because the developer was crap.