Chimney Removal Cost UK: Stack Takedown and Making Good

Chimney removal cost in the UK runs from around £800 for a simple stack takedown to £6,000 or more for a full removal with structural work, and on a multi-storey job it can climb past £10,000. The reason the range is so wide is that “removing a chimney” covers everything from lopping the stack above the roofline to taking out the whole breast through every floor. This guide breaks down each type, what pushes the price up, and the permissions you cannot skip, so you can budget before you call a contractor.

Chimney removal cost at a glance

These are indicative 2026 figures. London and the South East, where most chimneys sit on Victorian and Edwardian terraces with shared stacks and awkward access, tend to sit at the upper end.

The two jobs people mean by “chimney removal”

Removing the stack (the bit above the roof)

This is the most common and cheapest option: the chimney stack above the roofline is taken down and the roof is made good where it stood. Cost is typically £800 to £1,800, driven mainly by scaffolding and the size of the hole to patch. It suits a homeowner who no longer uses the fireplaces but wants to stop a redundant stack causing damp and leaks. You keep the breast inside, so there is no structural work indoors.

Removing the breast (the bit inside the house)

The chimney breast is the projecting brickwork inside your rooms. Taking it out reclaims floor space but is a structural job: the masonry above has to be supported, usually with a steel beam (a “gallows bracket” or full beam), and the work needs proper calculations. Expect £1,500 to £2,500 per floor, more if you remove it through several storeys.

Full removal

Taking out the whole thing, stack and breast, from roof to ground floor, combines both jobs plus more making good. A straightforward full removal is around £3,000 to £3,500, but multi-storey terraces with steelwork, permissions and internal repairs frequently reach £6,000 to £10,000 or more.

What pushes the cost up

• Scaffolding. Any work on the stack needs access, and scaffolding is a fixed cost regardless of how much brick comes down. See our roof scaffolding cost guide.
• Structural steel. Removing a breast means supporting the masonry above. Budget roughly £350 to £700 for a structural engineer’s visit, calculations and support detail, on top of the steel itself.
• Number of floors. Cost scales with each storey the breast passes through.
• Making good. Patching the roof, plastering walls, matching skirting and flooring, and redecorating are easy to underestimate.
• Shared or party-wall stacks. Terraced and semi-detached homes often share a stack, which brings in party wall procedures (below).
• Access and location. Tight terraces and upper-end regions cost more.

Permissions you cannot skip

• Building Regulations. Chimney removal is a structural alteration, so Building Control approval is required for stack or breast removal. Your contractor or engineer will handle the notification and sign-off. Our guide to planning permission and building regs explains how this works for roof jobs.
• Party Wall Act. If the chimney is on or shared with a party wall (common in terraces and semis), you must serve notice on the neighbour and usually agree a party wall award before work starts. See the gov.uk party wall guidance. Skipping this can stop the job and lead to disputes.
• Listed buildings and conservation areas. These may need additional consent, and removing a chimney can be restricted where it affects the character of the property.

Should you remove it or keep it?

Removing a redundant stack stops leaks, damp and the cost of ongoing repairs. But keeping and capping a stack is far cheaper if the brickwork is sound, and retaining the breast preserves a period feature and avoids structural work. If the chimney is only leaking or the pointing has failed, a repair is usually the better value: see chimney repointing cost and our overview of roofline and chimney services. If in doubt, get a roofer to assess whether removal is really needed or whether capping and repair will do.

How to budget accurately

1. Decide the scope: stack only, breast, or full removal. This is the single biggest cost driver.
2. Get at least three quotes that itemise scaffolding, structural work, making good and waste removal separately.
3. Add the engineer’s fee (£350-£700) for any breast removal.
4. Factor in redecoration, which quotes often exclude.
5. Confirm who arranges Building Control and party wall notices, and that it is included in the price.

Frequently asked questions

How much does it cost to remove a chimney in the UK? Between about £800 and £6,000 in 2026, and more on large multi-storey jobs. Removing just the stack above the roof is £800 to £1,800; removing the breast is £1,500 to £2,500 per floor; a full removal is £3,000 to £3,500 and up.

How much does it cost to remove just the chimney stack? Around £800 to £1,800, driven mainly by scaffolding and the size of the roof patch. This leaves the breast in place, so there is no structural work inside the house.

How much is chimney breast removal per floor? Typically £1,500 to £2,500 per floor, because the masonry above must be supported with steel and the work needs structural calculations.

Do I need building regulations to remove a chimney? Yes. Chimney removal is a structural alteration, so Building Regulations approval is required for removing a stack or breast. If the chimney is on a party wall, you also need to follow the Party Wall Act.

Is it cheaper to remove or cap a chimney? Capping is much cheaper if the brickwork is sound, and it stops rain getting in while keeping the structure. Full removal only makes sense if the stack is redundant and causing problems, or you want to reclaim internal space.

Does a structural engineer need to be involved? For breast or full removal, yes. Budget roughly £350 to £700 for the engineer’s visit, calculations and support detail. Stack-only removal above the roof usually does not need one.