Boston · Lincolnshire
Chimney stack repairs in Boston
If a pot or a piece of brickwork has fallen from a stack at your Boston 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£490per stack inc VAT
- Postcodes
- PE21
- Population
- about 45,000
- Area
- Lincolnshire
- Pricing region
- East Midlands
What is the ground like in Lincolnshire?
We cover Boston and its postcode districts PE21, part of Lincolnshire, with a population of roughly 45,000. We also take enquiries from nearby Spalding (14 miles), Sleaford (16 miles) and Skegness (19 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. Housing stock in Lincolnshire: Victorian terraces in Lincoln and Grimsby, fenland brick houses, seaside bungalows and post-war estates.
What should you budget for chimney stack repairs in Boston?
Prices in Boston 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 |
Repair options we may recommend
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
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
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.
Is it time for chimney stack repairs? Common signs
- A stack visibly leaning when you look along the roof ridge
- Mortar washed out of joints, leaving bricks standing proud
- Cracked or missing flaunching around the top of the 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.
Your chimney stack repairs questions
How much should I budget for chimney stack repairs in Boston?
Guide prices for chimney stack repairs in Boston 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 Boston?
We do. Boston and the surrounding area are covered, including nearby Spalding and Sleaford. A free initial assessment from your photos is the first step.
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.
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.
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 Boston
Chimney stack repairs near Boston
Sharing a stack with next door in Boston? We can quote for the whole stack so you and your neighbour can see the full picture.