Thorne · South Yorkshire
Chimney stack repairs in Thorne
Before repairing a stack at a Thorne property, we ask what lies beneath it. If a chimney breast has been removed inside, the support for the stack above needs checking by an engineer before any work on the roof.
Guide price from£475per stack inc VAT

- Postcodes
- DN8
- Population
- about 17,000
- Area
- South Yorkshire
- Pricing region
- Yorkshire and the Humber
What is the ground like in South Yorkshire?
Postcode districts DN8 cover Thorne, a South Yorkshire town of about 17,000 people. If you are just outside Thorne, we also cover Goole (7 miles), Doncaster (9 miles) and Adwick-le-Street (10 miles).
Parts of South Yorkshire have clay that can shrink near trees in dry spells. Historic coal workings are recorded beneath parts of South Yorkshire, and a coal mining search is worth checking where movement is unexplained. Housing stock in South Yorkshire: Brick and stone terraces, colliery housing, inter-war council estates and post-war semis.
What happens during chimney stack repairs, step by step?
Look from the ground
Photos from the street and garden, ideally with a zoom, show us the lean, the pots, the flaunching and the state of the pointing. Damp patches inside are worth photographing too, as they help trace the route water is taking.
Scaffold to the stack
Safe access is set up with a working platform around the stack. On terraces we may need to agree access over a neighbour’s roof, and a council licence is arranged where the scaffold stands on the pavement.
Repair, restrain or rebuild
The agreed work is carried out: repointing, new flaunching and pots, restraint, or taking the stack down and rebuilding it. Lead flashings where the stack meets the roof are checked and renewed if needed.
What to look for before calling about chimney stack repairs
- Mortar washed out of joints, leaving bricks standing proud
- A stack visibly leaning when you look along the roof ridge
- Bits of brick, mortar or render landing in the garden or gutter
Chimney stack repairs prices in Thorne
Prices in Thorne are worked out on Yorkshire and the Humber rates. They include VAT and are a starting point: access, the extent of the damage and whether an engineer or building control is involved all move the figure.
| Item | Guide price | Per |
|---|---|---|
| Repointing, flaunching and minor brick repairs | £475 – £1,900 | per stack |
| Partial or full stack rebuild | £2,850 – £9,500 | per stack |
| Stack restraint or strappingest. | £380 – £1,150 | per stack |
How we usually approach chimney stack repairs
Flaunching and pot resetting
Old cracked flaunching is broken out, pots are lifted and reset or replaced, and new flaunching is formed to a fall so water runs off. Unused flues can be capped with ventilated caps, which keeps rain out while letting the flue breathe.
Best for: Loose pots and cracked mortar at the top of the stack
Partial or full rebuild
Where the lean is pronounced or the brickwork is badly decayed, the stack is taken down to sound masonry, often to roof level, and rebuilt plumb with new flashings and flaunching. Original bricks are cleaned and reused where possible to keep the appearance.
Best for: Badly leaning or decayed stacks
Rules for chimney stack repairs in England
In England, underpinning and other work that alters or strengthens a wall or foundation is building work under the Building Regulations (Part A, structure), so building control approves and inspects it. Like-for-like repairs often are not, and we tell you which applies before a price is agreed. Work to a party wall, or excavation close to a neighbour’s foundations, can also need a notice under the Party Wall etc. Act 1996.
Questions about chimney stack repairs in Thorne
How much should I budget for chimney stack repairs in Thorne?
Guide prices for chimney stack repairs in Thorne start from about £475 per stack, including VAT, on Yorkshire and the Humber rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Can you survey a property in Thorne?
We do. Thorne and the surrounding area are covered, including nearby Goole and Doncaster. A free initial assessment from your photos is the first step.
Why do houses in South Yorkshire crack?
South Yorkshire lies largely on the Coal Measures, with a long history of shallow and deep mining around Barnsley, Rotherham and Doncaster. Sheffield's hillside sites add retaining walls and steep ground to the mix. Only an investigation can say why a particular building has moved.
Is a leaning chimney dangerous?
A leaning chimney can become dangerous, because stacks are heavy and stand high above the roof. A slight, long-standing lean may be stable for now, but a lean that is worsening, or loose bricks and pots, should be looked at quickly. Keep people away from below if anything looks loose.
Can a leaning stack be straightened?
Not by pushing it back, because the brickwork would crack. A slight lean on a sound stack can be restrained so it moves no further. A pronounced lean is fixed by taking the stack down to sound masonry and rebuilding it plumb.
Related work in Thorne
Chimney stack repairs near Thorne
If a stack in Thorne has shed bricks or a pot, photograph it from a safe place and send it over so we can advise on next steps.