Stockton-on-Tees · County Durham
Chimney stack repairs in Stockton-on-Tees
If a pot or a piece of brickwork has fallen from a stack at your Stockton-on-Tees property, keep everyone clear of the drop zone. Photograph what you can from the ground, and we will advise on securing the stack and repairing it properly.
Guide price from£460per stack inc VAT

- Postcodes
- TS18, TS19, TS20
- Population
- about 80,000
- Area
- County Durham
- Pricing region
- North East
Why does the ground in County Durham matter for chimney stack repairs?
Stockton-on-Tees (TS18, TS19, TS20) has around 80,000 residents and sits in County Durham. Nearby places we cover include Thornaby-on-Tees (3 miles), Middlesbrough (3 miles) and Yarm (5 miles).
County Durham has a mix of ground, with clay in some places and firmer rock in others. Historic coal workings are recorded beneath parts of County Durham, and a coal mining search is worth checking where movement is unexplained. Across County Durham, most homes are colliery terraces, stone and brick villas in Durham and Darlington, and post-war council estates.
Is it time for chimney stack repairs? Common signs
- Mortar washed out of joints, leaving bricks standing proud
- Cracked or missing flaunching around the top of the stack
- Bits of brick, mortar or render landing in the garden or gutter
What should you budget for chimney stack repairs in Stockton-on-Tees?
Prices in Stockton-on-Tees are worked out on North East 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 | £460 – £1,850 | per stack |
| Partial or full stack rebuild | £2,750 – £9,200 | per stack |
| Stack restraint or strappingest. | £370 – £1,100 | per stack |
Repair options we may recommend
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
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
What to expect when we carry out chimney stack repairs
Check what is below
We ask whether any chimney breasts have been removed, and check the loft and rooms below for cracking. If a breast has gone without proper support, we recommend an independent chartered structural engineer before any stack work.
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.
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.
Your chimney stack repairs questions
How much should I budget for chimney stack repairs in Stockton-on-Tees?
Guide prices for chimney stack repairs in Stockton-on-Tees start from about £460 per stack, including VAT, on North East 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 Stockton-on-Tees?
Yes, Stockton-on-Tees is covered, along with postcode districts TS18, TS19, TS20. We also cover nearby Thornaby-on-Tees and Middlesbrough.
Why do houses in County Durham crack?
Much of County Durham sits on the Durham Coalfield, worked for centuries, often under a cover of glacial clay. Many former pit villages have recorded mine workings, and coal mining searches are standard for property here. Only an investigation can say why a particular building has moved.
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.
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 Stockton-on-Tees
- Structural crack repairs
- Wall tie replacement
- Structural surveys and crack monitoring
- Brick arch repairs
- Mining subsidence repairs
Chimney stack repairs near Stockton-on-Tees
Each part of a Stockton-on-Tees chimney job, scaffold included, is itemised in our no-obligation written quote so you can see where the cost lies.