Cavity wall - replacing a concrete lintels over doorway

[crispy_wafer]

So, it seems I've a doorway in the wrong place...  Something I knew about, just shoved it out the way till I had headspace to think about it.  Long story short, builder increased the height of ground floor by a block, leaving not enough length for staircase before a doorway... 

 

I just need the doorway shifting 6 inches thataway <---....   It's and internal opening in a cavity wall, block and block.  Concrete lintels in each leaf above the opening with 150mm either side.  Width of the opening is about 900mm.  We have a floor above on one side set on Pozi's. 

 

Is this something that I can deal with, by drilling out space for the new lintel, drilling out the mortar, knocking the lintel out then replacing with a longer one, I can then set about opening up the width of the doorway at a later date?  Or do I need a man that can, who has all the prop gear, expertise and stuff?

 

 

 

 

[Russell griffiths]

Just make sure on the side you cut out your not leaving a slither of block for the lintel to sit on, you might need to move the opening to marry up with half blocks. 

[joe90]

The lintels only hold up a triangle of blocks which might not even reach the ceiling, very DIYable just keep in touch with us. Is it plastered yet? If not post a photo of the blocks .

[crispy_wafer]

Excuse the mess!

 

Here's one side, covered in parge, I'll need to untack the wiring and relocate the switch, but that's no biggie, even if I have to replace wiring.

 

 

Other side

[joe90]

18 minutes ago, crispy_wafer said:

Excuse the mess!

That’s tidy for a build site…. So you are moving 6” away from the stairs ?. Judging by the second pic (where you can see where the blocks are) you are at risk of only dropping one block (the one in the middle which can be motored back in no probs. Cut away carefully (no lump hammers, drilling out the mortar) along the top of the lintel first, then under each end till the lintel falls away. Cut a piece of timber to temporarily support that central block from the floor (in case vibrations drop it on your head). Cut away the left wall 6”. Either use starter kit

https://www.screwfix.com/p/sabrefix-wall-starter-kit-stainless-steel-1200mm/56037?tc

or cut into existing blocks at a couple of places to stagger/tie in the extra 6” of block work (I prefer cutting in! And cheaper). Do one side at a time. Crack on mate 👍

Edited December 12 by joe90

[Pocster]

11 minutes ago, joe90 said:

That’s tidy for a build site…

Tidier than my house now !!

[crispy_wafer]

2 hours ago, joe90 said:

That’s tidy for a build site…. So you are moving 6” away from the stairs ?. Judging by the second pic (where you can see where the blocks are) you are at risk of only dropping one block (the one in the middle which can be motored back in no probs. Cut away carefully (no lump hammers, drilling out the mortar) along the top of the lintel first, then under each end till the lintel falls away. Cut a piece of timber to temporarily support that central block from the floor (in case vibrations drop it on your head). Cut away the left wall 6”. Either use starter kit

https://www.screwfix.com/p/sabrefix-wall-starter-kit-stainless-steel-1200mm/56037?tc

or cut into existing blocks at a couple of places to stagger/tie in the extra 6” of block work (I prefer cutting in! And cheaper). Do one side at a time. Crack on mate 👍

 

I understand now, what you mean about triangle of blocks.. doh!  Yep 6" away from stairs.

 

I'm happy to go at most things so Yeah I reckon can do this!