Cheltenham · Gloucestershire
Chimney stack repairs in Cheltenham
On older houses around Cheltenham, many stacks lean slightly away from the prevailing weather. That is usually sulphate attack in the mortar, and the repair depends on how far the stack has moved and how sound the brickwork still is.
Guide price from£515per stack inc VAT
- Postcodes
- GL50, GL51, GL53
- Population
- about 120,000
- Area
- Gloucestershire
- Pricing region
- South West
How do local ground conditions affect chimney stack repairs in Cheltenham?
Cheltenham is in Gloucestershire and takes in postcode districts GL50, GL51, GL53. About 120,000 people live there. If you are just outside Cheltenham, we also cover Tewkesbury (7 miles), Gloucester (7 miles) and Stroud (12 miles).
Gloucestershire has a mix of ground, with clay in some places and firmer rock in others. Parts of Gloucestershire lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Typical buildings in Gloucestershire: Cotswold stone cottages, Regency terraces in Cheltenham, and brick estates around Gloucester.
Chimney stack repairs prices in Cheltenham
Prices in Cheltenham are worked out on South West 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 | £515 – £2,050 | per stack |
| Partial or full stack rebuild | £3,100 – £10,300 | per stack |
| Stack restraint or strappingest. | £410 – £1,250 | per stack |
How we usually approach chimney stack repairs
Stack restraint or strapping
A stack that has leaned slightly but is otherwise sound can be restrained with stainless straps or ties fixed back to the roof structure or the gable. This stops further movement without taking the stack down, and is often combined with repointing.
Best for: Slightly leaning stacks with sound brickwork
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
What happens during chimney stack repairs, step by step?
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.
What to look for before calling about chimney stack repairs
- A stack visibly leaning when you look along the roof ridge
- Cracked or missing flaunching around the top of the stack
- Bits of brick, mortar or render landing in the garden or gutter
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 Cheltenham
What is the price of chimney stack repairs in Cheltenham?
Guide prices for chimney stack repairs in Cheltenham start from about £515 per stack, including VAT, on South West rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you carry out chimney stack repairs in Cheltenham?
We do. Cheltenham and the surrounding area are covered, including nearby Tewkesbury and Gloucester. A free initial assessment from your photos is the first step.
Does the ground around Cheltenham cause cracking?
The Severn vale around Gloucester, Cheltenham and Tewkesbury is Lias and Mercia Mudstone clay, the Cotswolds are limestone, and the Forest of Dean has a historic coalfield. Parts of South Gloucestershire around Kingswood also lie on old Coal Measures. 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.
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.
More repairs we carry out in Cheltenham
- Retaining wall repairs
- Bay window subsidence repairs
- Crack stitching
- Mining subsidence repairs
- Structural crack repairs
Chimney stack repairs near Cheltenham
If a stack in Cheltenham has shed bricks or a pot, photograph it from a safe place and send it over so we can advise on next steps.