Ballpark idea for an external chimney?

[Aviz]

I'm working out whether to go ahead and fit a wood burner. Even though the chimney will be completely hidden from anyone as it's in an un accessed gap between myself and neighbour, I can't bear the thought of having a stainless chip shop flue up the side.

I'm hoping to build an external chimney which will allow a wood burner to sit recessed in. Can anyone give me some ballpark cost ideas on this build?

As per this one, exactly, aside from built in bog standard new build red brick. Same roof cutout required. Probably exactly the same size although I suspect might be slightly lower as I have a shallower pitched roof.



Cheers

Andy

[Shaolin]

Ours goes through the top of our single story extension and then above the house eaves, it's matt black rather than stainless steel, less obvious than I thought it would be.

[Aviz]

It's worth thinking about. I think I want the chimney so I can recess the woodburner rather than it free stand in the room. The costs might mean a matt black flue could be the option

[ColinM50]

Cost of a brickie to build that I'd reckon at £2-3k. Got to be at least a week's work, plus digging out and foundations, scaffolding, labourer to mix and lift and shift. Yes anything under £2k is a bargain, but depending ehre you are £4k wouldn't be OTT.

Don't forget you need Building Control permit too c£250. Check on your council's website but anyone who tells you "don't bother it'll be allright", needs ignoring. Nightmare when you come to sell.

[Aviz]

ColinM50 said:

Cost of a brickie to build that I'd reckon at £2-3k. Got to be at least a week's work, plus digging out and foundations, scaffolding, labourer to mix and lift and shift. Yes anything under £2k is a bargain, but depending ehre you are £4k wouldn't be OTT.

Don't forget you need Building Control permit too c£250. Check on your council's website but anyone who tells you "don't bother it'll be allright", needs ignoring. Nightmare when you come to sell.

Thanks. I was thinking around 4k for the lot including woodburner, so hopefully not too far off the mark and can probably get the scaff free and I can do labouring to get it dug out etc.

I'll look into the building control, thanks

[Piglet]

If it's in an unaccessed gap how are you planning to get in there to build the chimney? Do you own the land that you want to build on and have you considered any Party Wall issues?

[Aviz]

Piglet said:

If it's in an unaccessed gap how are you planning to get in there to build the chimney? Do you own the land that you want to build on and have you considered any Party Wall issues?

I have an"alley" down the side of the house as per most 20 year old detached houses built in estates. My neighbour has the same separated by a 4 foot fence. We both have access the other side, and neither of us use the access on the chimney side. The chimney is on my land and there'll be a gap big enough to walk through between the chimney and the dividing fence. He actually has a chimney which I think was possibly an optional extra when built around 20 years ago. So mine will essentially mirror his.

Popped out and took a pic

Edited by Aviz on Wednesday 1st January 20:46

Edited by Aviz on Wednesday 1st January 20:46

[Piglet]

That makes more sense, you may need to take some advice on Party Wall Act issues though

[ColinM50]

Piglet said:

That makes more sense, you may need to take some advice on Party Wall Act issues though

Why? There's no shared wall, they both have detached houses

[Muncher]

I don't think you would get much change out of £3.5-4k for the chimney alone.

[Vaud]

ColinM50 said:

Why? There's no shared wall, they both have detached houses

It covers excavations near other structures including "excavation near to and below the foundation level of neighbouring buildings"

"If you are planning to excavate within 3m of a neighbouring building or structure to a depth greater than the neighbouring building’s foundations or where the excavation will cut a line drawn downwards at 45 degrees from the bottom of the neighbouring building foundations you must serve a Section 6 Notice of Adjacent Excavation."

So depends on the foundations needed and distance from your neighbour.

[TA14]

Vaud said:

ColinM50 said:

Why? There's no shared wall, they both have detached houses

It covers excavations near other structures including "excavation near to and below the foundation level of neighbouring buildings"

"If you are planning to excavate within 3m of a neighbouring building or structure to a depth greater than the neighbouring building’s foundations or where the excavation will cut a line drawn downwards at 45 degrees from the bottom of the neighbouring building foundations you must serve a Section 6 Notice of Adjacent Excavation."

So depends on the foundations needed and distance from your neighbour.

Yes but in this case it's just paperwork. Draw up your plans, give him notice and that's about it, although it would be handy to access his land during the build.

All things being equal you should be OK but have you checked your footings? If it's a standard 1m dig then it's easy but if they are deep or piled it could add to the cost significantly.

[Aviz]

TA14 said:

Yes but in this case it's just paperwork. Draw up your plans, give him notice and that's about it, although it would be handy to access his land during the build.

All things being equal you should be OK but have you checked your footings? If it's a standard 1m dig then it's easy but if they are deep or piled it could add to the cost significantly.

Thanks. Pretty sure the footings are standard 1m and No problems with access. Will start to try and find someone to knock some plans together.

Cheers

[Nuisance_Value]

I agree with Muncher, £3.5 to £4k to build that, plus wood burner on top. Mind you may have to get a roofer/plumber on board for any adaptations/new leadwork to the existing if required. Depends who you get to do it.

[Busa mav]

Nuisance_Value said:

I agree with Muncher, £3.5 to £4k to build that,

same here,

Last one I saw priced was 5 years ago and that was 4k + vat then.

[Pcot]

Have you thought .about an internal flue?

[Muncher]

Our one which is slightly taller probably cost £5k including the concrete liners and infill, that was even with builders here at the time and we already had scaffolding. By the time you have added the hearth, decor, building control sign off and the burner itself you could well be in for £6-7k, plus you need to source wood for it which isn't that cheap. £7k buys an awful lot of gas, maybe something worth thinking about.

[dingg]

Muncher said:

Our one which is slightly taller probably cost £5k including the concrete liners and infill, that was even with builders here at the time and we already had scaffolding. By the time you have added the hearth, decor, building control sign off and the burner itself you could well be in for £6-7k, plus you need to source wood for it which isn't that cheap. £7k buys an awful lot of gas, maybe something worth thinking about.

+100%

[Pcot]

Fitted mine with an internal flue. £2700 all in....

[JeffreyLebowski]

Did you go ahead with this OP? If so what was the result, and if you don't mind me asking, the cost?
I want to install a log burner to my house (similar property to yours) but like you, don't fancy a chip shop flue and want to recess the burner into an alcove.
It might be a daft idea, but in order to make it cost effective, I was thinking of a halfway-house solution: brick built chimney up to around 5 foot with sloping tiled roof (which would provide the alcove to put the burner in), then a metal flue (I've seen black ones which would blend in better) straight out the top of it going up the side of the house. Something like this: