Scunthorpe · Lincolnshire
Chimney stack repairs in Scunthorpe
Before repairing a stack at a Scunthorpe 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£490per stack inc VAT

- Postcodes
- DN15, DN16, DN17
- Population
- about 82,000
- Area
- Lincolnshire
- Pricing region
- East Midlands
What should you know about the ground under Scunthorpe?
Scunthorpe (DN15, DN16, DN17) has around 82,000 residents and sits in Lincolnshire. Nearby places we cover include Thorne (13 miles), Gainsborough (14 miles) and Doncaster (20 miles).
Lincolnshire has a mix of ground, with clay in some places and firmer rock in others. Ground movement here is more often linked to soils, drains and trees than to mining. What you mostly find across Lincolnshire: Victorian terraces in Lincoln and Grimsby, fenland brick houses, seaside bungalows and post-war estates.
Guide prices for chimney stack repairs in Scunthorpe
Prices in Scunthorpe are worked out on East Midlands 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 | £490 – £1,950 | per stack |
| Partial or full stack rebuild | £2,950 – £9,800 | per stack |
| Stack restraint or strappingest. | £390 – £1,200 | per stack |
Methods for 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
Repointing and brick repairs
Eroded joints are raked out and repointed in a mortar suited to the brick, often a lime-based mix on older stacks. Spalled or cracked bricks are cut out and replaced with matched reclaimed or new bricks. On many stacks this, with new flaunching, is all that is needed.
Best for: Upright stacks with weathered joints and some damaged bricks
From first photo to finished repair
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.
Weatherproof and clear
Caps or cowls are fitted where agreed, the roof around the stack is checked for slipped tiles, and debris is cleared from gutters. You receive photos of the finished stack taken from the scaffold, since it is hard to see from the ground.
Symptoms that point to chimney stack repairs
- Chimney pots that are loose, tilted or cracked at the base
- A stack visibly leaning when you look along the roof ridge
- Damp patches on the chimney breast inside, especially after rain
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.
Frequently asked questions
How much should I budget for chimney stack repairs in Scunthorpe?
Guide prices for chimney stack repairs in Scunthorpe start from about £490 per stack, including VAT, on East Midlands 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 Scunthorpe?
Yes, Scunthorpe is covered, along with postcode districts DN15, DN16, DN17. We also cover nearby Thorne and Gainsborough.
Why do houses in Lincolnshire crack?
Lincolnshire has Lias, Oxford and Kimmeridge clays on the vales, chalk on the Wolds and soft silts and peat in the fens around Boston and Spalding. Fen ground and clay can both settle or shrink in dry years. Only an investigation can say why a particular building has moved.
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.
Why is my chimney stack leaning?
Most leaning stacks are caused by sulphate attack, where chemicals from old flue gases make the mortar expand more on the wetter side, so the stack bends away from the weather. Frost damage and failed pointing can make it worse. A recently leaning stack can also signal problems below.
Related work in Scunthorpe
- Wall tie replacement
- Structural surveys and crack monitoring
- Lintel replacement
- Concrete repairs
- Retaining wall repairs
Chimney stack repairs near Scunthorpe
Each part of a Scunthorpe chimney job, scaffold included, is itemised in our no-obligation written quote so you can see where the cost lies.