How much does chimney removal cost in the UK? (2026)
Verified UK chimney removal prices for 2026 by scope, from stack-only to full breast-and-stack, plus the structural support, Building Regs and party wall rules a fair quote must account for.
Removing a chimney in the UK in 2026 costs from about £1,200 for the stack alone to £3,500 for a full breast-and-stack removal, and £6,000-£10,000+ for a large multi-storey job once steel, permissions, and making good are counted. It is structural work, so the price is only half the story: the other half is how the part you keep is held up.
Quick answer
UK chimney removal in 2026: stack alone £1,200-£1,400, ground-floor breast £1,500-£1,750, first-floor breast £1,750-£2,000, and full breast and stack £3,000-£3,500. Large multi-storey removals reach £6,000-£10,000+. It needs Building Regs, usually a structural engineer, and often a party wall agreement in terraces.
How to read this guide#
Two kinds of figures appear below:
- Headline price ranges (by scope): cross-referenced against MyJobQuote's UK 2026 chimney removal guide. Source listed at the bottom.
- Practical guidance (structure, Building Regs, party walls): standard UK practice and law, for context rather than figure-by-figure verification.
Headline ranges (verified)#
Chimney removal by scope, UK 2026:
| Job | Typical duration | Typical cost |
|---|---|---|
| Stack alone (roof level) | 4-8 hours | £1,200 – £1,400 |
| Breast on a non-load-bearing wall | 1-1.5 days | £900 – £1,300 |
| Ground-floor breast | 1.5-2 days | £1,500 – £1,750 |
| First-floor breast | 1.5-2 days | £1,750 – £2,000 |
| Entire breast, without stack | 2-3 days | £2,200 – £2,400 |
| Entire breast and stack | 3-4 days | £3,000 – £3,500 |
Scaffolding (around £400-£500 a week) and a skip (£250-£500) are usually needed and should be in the quote. Structural steel and an engineer's design sit on top for anything load-bearing.
Practical guidance (industry standard)#
This is structural work, not demolition#
A chimney breast is often part of the house's structure, especially in Victorian and Edwardian terraces. Removing it changes the load paths, so:
- A structural engineer designs the support and specifies any steel.
- Building Regulations approval is required, with sign-off by a building inspector.
- The work must be done in the right sequence so nothing is left unsupported.
A quote that treats a chimney breast as a simple knock-out, with no engineer and no Building Regs, is the single biggest red flag here. See GOV.UK on Building Regulations.
Supporting what you keep#
The most common partial job is removing a downstairs breast while keeping the one above, or removing both breasts while keeping the stack on the roof. The masonry left above has to be carried:
- Gallows brackets bolted to the party wall support a modest remaining breast or stack.
- A steel beam is used where the load is too great for brackets.
Either way it is an engineer's decision, and the quote should name the method. Leaving a stack or breast unsupported is unsafe and unlawful.
Party walls in terraces and semis#
In a terrace or semi, the chimney breast usually sits on or against the party wall, so the Party Wall Act applies and you must serve notice on the neighbour. This adds a surveyor's fee and a few weeks. See GOV.UK on party walls. A quote for an attached house that says nothing about it has skipped a legal step and a cost.
What affects the price#
- Scope. Stack-only is cheap; full breast-and-stack across floors is the big number.
- Structure. Load-bearing breasts need steel and engineering.
- Access. Stack removal needs scaffolding; tight sites cost more.
- Making good. Roof, plaster, and floor reinstatement after removal.
What is often excluded#
- Structural engineer's design and Building Control fees.
- Party Wall Act notices and surveyor.
- Roof making good where the stack is removed (re-tiling, new ridge, flashing). See the new roof guide.
- Plastering and flooring to reinstate the rooms.
- Scaffolding and skip, if quoted as a bare labour price.
For structural alteration in general, the house extension guide covers steels and Building Regs in more depth.
Red flags in a chimney removal quote#
- No structural engineer or Building Regs on a load-bearing breast.
- No support method named for a stack or breast left above.
- No party wall mention on a terrace or semi.
- Roof making good left out when the stack is removed.
- A bare price with no scaffolding, skip, or reinstatement, which will climb once work starts.
Comparing your quote#
If you have a chimney removal quote, check it names the scope, the support method, Building Regs, and any party wall, and includes making good. The faster way is to paste or upload your quote into Check the Quote: we check every line against current UK rates for your postcode, flag anything above the fair range, and tell you what is missing from the scope. Your first check is free.
Got a quote you want checked?
Paste any UK contractor quote and Check the Quote compares every line item against current market rates, flags missing scope, and runs a Companies House check on the contractor. Free on your first project.
Frequently asked questions
- How much does it cost to remove a chimney in the UK in 2026?
- Removing the chimney stack alone is roughly £1,200-£1,400, a ground-floor chimney breast £1,500-£1,750, a first-floor breast £1,750-£2,000, and the entire breast and stack £3,000-£3,500 (MyJobQuote, 2026). Full multi-storey removals with structural steel, permissions, and making good can reach £6,000-£10,000 or more.
- Do I need Building Regulations approval to remove a chimney?
- Yes. Removing a chimney breast or stack is a structural alteration, so it needs Building Regulations approval and usually a structural engineer to design the support. A registered building inspector signs the work off. Skipping this can make the work unsafe and cause problems when you sell, since a buyer’s solicitor will ask for the certificate.
- What happens to the chimney above if I remove the breast below?
- It must be supported. If you remove a ground or first-floor breast but keep the stack or the breast above, the remaining masonry has to be held up with gallows brackets or a steel beam, designed by an engineer. A quote that removes a lower breast without showing how the part above is supported is dangerous and should be questioned.
- Do I need a party wall agreement?
- Often, in terraced and semi-detached homes. The chimney breast frequently sits on or against the party wall shared with a neighbour, so the Party Wall Act applies and you must serve notice. This adds a surveyor’s fee and time. A quote for a terrace that ignores the party wall has missed a real cost and a legal step.
- Why is one chimney removal quote much higher than another?
- Usually scope. Stack-only is a roof job; a full breast-and-stack removal across two floors involves steel, scaffolding, roof making good, plastering, and flooring. A fair quote states exactly what comes out, how the remainder is supported, and whether scaffolding, skip, and making good are included.