Thornaby-on-Tees · North Yorkshire
Chimney stack repairs in Thornaby-on-Tees
Before repairing a stack at a Thornaby-on-Tees 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
- TS16, TS17, TS18
- Population
- about 22,000
- Area
- North Yorkshire
- Pricing region
- Yorkshire and the Humber
What is the ground like in North Yorkshire?
We cover Thornaby-on-Tees and its postcode districts TS16, TS17, TS18, part of North Yorkshire, with a population of roughly 22,000. Nearby, we also cover Stockton-on-Tees (3 miles), Yarm (3 miles) and Middlesbrough (4 miles).
North Yorkshire has a mix of ground, with clay in some places and firmer rock in others. Parts of North Yorkshire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Housing stock in North Yorkshire: Stone cottages, Georgian and Victorian houses in York and Harrogate, and brick terraces on Teesside.
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
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
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
- Mortar washed out of joints, leaving bricks standing proud
- A stack visibly leaning when you look along the roof ridge
- Chimney pots that are loose, tilted or cracked at the base
Guide prices for chimney stack repairs in Thornaby-on-Tees
The ranges below reflect typical Yorkshire and the Humber costs for chimney stack repairs, including VAT. Scaffold, access and making good can push a job to the top of the range.
| 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 |
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 Thornaby-on-Tees?
Guide prices for chimney stack repairs in Thornaby-on-Tees 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 Thornaby-on-Tees?
Yes. We take enquiries from across Thornaby-on-Tees, including TS16, TS17, TS18, and from nearby places such as Stockton-on-Tees and Yarm. Send photos for a free initial view and we will tell you what happens next.
Why do houses in North Yorkshire crack?
North Yorkshire ranges from limestone dales and moors to clays and glacial deposits in the Vale of York, with the Selby coalfield in the south and ironstone workings in Cleveland. Teesside has areas of soft and made ground. Only an investigation can say why a particular building has moved.
Do I need scaffolding for chimney repairs?
In almost all cases, yes. Safe work on a stack needs a stable platform at stack height, which usually means scaffold. Ladders and roof ladders do not give a safe place to repoint, lift pots or rebuild brickwork.
What is chimney flaunching?
Flaunching is the sloped bed of mortar on top of a chimney stack that holds the pots in place and throws rainwater off. When it cracks, water gets into the stack and pots can work loose. Renewing it is one of the most common stack repairs.
Related work in Thornaby-on-Tees
- Brick arch repairs
- Structural crack repairs
- Resin injection ground stabilisation
- Extension pulling away repairs
- Roof structure repairs
Chimney stack repairs near Thornaby-on-Tees
Each part of a Thornaby-on-Tees chimney job, scaffold included, is itemised in our no-obligation written quote so you can see where the cost lies.