Remove of chimney stack

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Not sure this is the right place to put this thread but here goes...

The gaff I bought in 2009 (built in 1966) originally had a chimney breast running through the centre of the house (from the kitchen up) through a bedroom on the first floor, then through and out the loft.

Apparently the old boy next door told me that originally the base of it was in the kitchen for some kind of a heater, it started about 3' off the floor (as some kind of escape for a boiler or something) and the stack was tied into two walls on a 90 degree angle.

This was it originally:

Screen Shot 2016-03-04 at 20.33.27.png

the section in the kitchen with the white line where the stack originally was. The green is the nearest joist.
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The surveyor when I bought the house said that the kitchen (base) section of the stack had been removed and without disturbing the 1st floor floor (which I did after) or the kitchen ceiling below was impossible to see how it was supported.

He said the stack above roof level needed repointing and the rest of the internal stack looked in good condition with no signs of stress and had been like that since at least 2003 when the previous owner lived there (who didn't carry out the renovations)

There were no building regs applied for or noted.

So, rather than repoint it I got my own surveyor in to have a butchers, I took up a few floorboards and there was no obvious signs of support. The surveyor said maybe some steel across the 90 degree walls. Or the joist may be helping support it.

Anyway, cut a long story short he said get it down above roof level to about 600mm in rood level.

Which I did, then the removal (hammer and chisel) started to cause a bit of stress on the bedroom ceiling so they stopped at 800mm.

The reason I post this is even after 6 years since this was done (and no signs of stress/cracks etc I'm still uneasy about the section in the loft above my daughters bedroom)

A few very experienced builders, architect have looked at it and said there would be cracks/signs long before anything came down and 13 years later there is no signs of problems but peace of mind is making me want to do one of two things:

1) use an angle grinder to remove stack in loft (so doesn't cause further cracks/stress on ceiling/timbers and doesn't cause a shed load of mess/redecoration in the bedroom

or 2) take the whole thing out.

I'm thinking If i go top downwards I wont need building regs but will obviously need to make good the plasterboard ceiling and floor in bedroom and relocated the light switch

HOW IT IS CURRENTLY

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When i ran a pipe/wire detector over the green area (to test for a steel of some sort) it picked up metal in some places but I couldnt find a consistent length. It is rock hard to tap.

BEDROOM:
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LOOKING DOWN FROM LOFT
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remaining stack in loft:
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remaining stack in loft

So, for peace of mind so should I get rid of it or leave it be? that is what I am asking myself

Any opinions welcome

Cheers
 

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You will need building regs approval (about £143), but it's just an inspection job to make sure it's up to standard and gets signed off. Using an angle grinder in the loft isn't a good idea for your breathing - even with a mask, but you could try using a small grinder to cut into the mortar courses, and then try levering the bricks off

As you've already got cracks in the ceiling, I'd remove the chimney completely, and then replaster the ceiling.
 
Cheers Doggit, the cracks are hairline and havent got any worse, but I take it from your post you'd want shot of it for peace of mind?

EDIT, if you're refering to the hairline crack on the 1st floor landing I think that happened when the loft section of the stack was removed. It hasnt got any worse from my knowledge.

Doggit do you mean JUST the section in the loft or the remaining section in the bedroom?
 
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If you're taking out the chimney breast in the bedroom, then do the loft as well (or even the other way round), and then just fix any cracks that have appeared.

You'll get a bigger bedroom that will lay itself out better, and you get rid of all the problems once and for all.
 
That's what I was thinking mate

Would you hazard a guess on removal and making good?
 
Taking out is a DIY job, hammer bolster, muscles and rubble bags.

Making good will take about a day to bond the walls, and patch the ceiling with new plasterboard, and then a day to plaster it. What are the rates like in your area. You'll then to sort out the skirting boards, and do the carpet.
 
In another thread Doggit said:
Gallows brackets are only used to stop the upper bricks dropping down; there's actually no structural reason for them.

Totally untrue, they are essential........ people have been killed when an un-supported chimney stack has fallen through the ceiling and onto the bed in the enlarged bedroom below

They are there to stop the chimney stack from falling off the wall as mortar deteriorates.



Read more: //www.diynot.com/diy/threads/removal-of-gallow-bracket.453839/#ixzz4210dlyXm
 
So what would you do?

Just remove the stack in the loft and avoid disrupting the bedroom part or get rid of the whole lot and redecorate after?
 
So what would you do?

I won't be in that position. Chimneys in this Grade II listed cottage have to remain as they are.

Chimney stacks above the roof can and do fall when the stack below is removed if no alternative support ( such as a gallows bracket ) is fitted to support the stack that is left in place..

It took several years before an un-supported stack fell through two ceilings and ended up as a pile of bricks on the dining room floor and table.
 
I have had a few chimneys in various properties removed,your job looks easy,but !.
Ok the physical work is easy the but is...building control and the issue of a certificate building certificate on completion,many people will say its not required but when you come to sell that place it will be asked for and you cannot lie,so best to get it at time of work.Its not cheap but very necessary.
I would get a roofing company to do all the work.Also I would get an independent building control company,i have used PWC building control services,dont do any more work as they want to see it before and after,although from what I can see the structural work in minimal.
Your council can also do the building regulation certificate but I have found them sometimes totally useless and an independents more clued up.
There are some specialist firms that do chimney removal and associated work,i can recommend hylton chimneys.

good luck.
 
Why get a roofing company to knock out an internal stack that is below roof level and nothing to do with roofing - out of interest?
 
Roofing and building contractor would have been a better description.

Most tradesmen are multi tradespeople or will have other trades people on speed dial when required.

Hylton if still in business would do all that inc scaffolding,buildings regulation sign off.everything.all you need to do is some dusting afterwards and sign a cheque.

Its not really a diy job.
 
.....would do all that inc scaffolding,buildings regulation sign off.everything.all you need to do is some dusting afterwards and sign a cheque.

Its not really a diy job.

Why would I need scaffold if the stack has been removed below roof level and the roof made good?

It would be bagged and taken through the loft hatch..

I dont think you've read the thread and seen the pics TBH
 
Why would I need scaffold if the stack has been removed below roof level and the roof made good?
Because if the stack is removed below the roof line then the stack above the roof line is no longer supported rom underneath.

So the scaffolding will be needed for safe access to the stack to ensure that either 1/ it is securely attached to the wall and the wall is strong enough to support it or 2/ the now un-stable stack above the roof can be removed before it falls
 

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