Chimney breast removal · Portishead
Chimney breast removal in Portishead
Chimney breast removal for homes in BS20, designed by a structural engineer.
- Free survey visit in Portishead
- Engineer's calculations arranged
- Building control handled for you
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
Chimney breast removal in Portishead: how it works
Planning chimney breast removal in Portishead? Our team covers BS20 and the streets around them. The wider Somerset area is covered as well. You get one written quote for the calculations, approvals, propping, steel and making good.
Chimney breasts take up a surprising amount of room, especially in the kitchens and bedrooms of older terraces and semis. Removing one is common, but it is structural work: the breast usually continues upstairs and up through the roof, and in terraces the stack is often shared with the house next door.
What to expect
- Older fireplaces sometimes contain asbestos in flue linings, fire surrounds, hearth boards or heat-resistant panels. In buildings from before 2000, suspect materials are identified with a survey before removal so they can be handled correctly.
- If you remove the breast in a ground-floor room but want to keep a fireplace or the breast in the bedroom above, the steel underneath must be designed for that load. Its ends need solid bearings, which may mean pockets cut into the party wall.
- Gallows brackets are steel angle brackets fixed into the wall to hold a breast above. They are often not accepted where the remaining masonry is heavy or sits against the neighbour's breast, so the engineer and building control decide which support method is suitable.
- A chimney breast removed without proper support or approval is a frequent issue raised in surveys when a house is sold. Keeping the calculations, completion certificate and any party wall documents shows a buyer that what remains was properly supported.
- A chimney closed off at both ends can trap moisture and cause damp patches on the walls. Where part of a flue remains, a vent at room level and a ventilated cap on the pot keep air moving through it.
From survey to sign-off in Portishead
Look and measure
We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.
Design and price
Calculations come back from the engineer and we confirm your fixed written price, line by line.
Building control
We submit a building notice or full plans application to North Somerset Council, so approval is in place before the wall is touched.
Fit, inspect, finish
The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.
What does chimney breast removal cost in Portishead?
As a guide, budget £1,550–£3,100 including VAT for chimney breast removal (ground floor) in Portishead, based on published UK cost guides adjusted for prices in the South West (+3%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Chimney breast removal (ground floor) | £1,550–£3,100 | Ground-floor breast removed, steel to support the breast above, building control and making good |
| Party wall surveyor (agreed surveyor, per neighbour) | £930–£2,060 per neighbour | Schedule of condition and award where a neighbour dissents; serving notice alone, where the neighbour consents, costs far less (England and Wales only) |
| Through-lounge knock-through | £2,600–£5,650 | Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill |
| Loft conversion steels | £2,600–£6,200 | Supply and fit of floor and ridge steels on padstones, including lifting into the roof space |
Figures include our approximate regional adjustment for prices in the South West (+3%) and are rounded. How these figures are worked out.
Building rules for Portishead
Structural openings in English homes need building regulations approval before work starts. North Somerset Council can deal with it, or you can use a registered building control approver. Either way the steel is inspected before it is covered, and a completion certificate is issued at the end. Keep it safe for when you sell.
Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.
Chimney breast removal near Portishead
- Nailsea 3.5 mi
- Clevedon 4.7 mi
- Kingswood 11.4 mi
- Mangotsfield 11.4 mi
- Weston-super-Mare 13.0 mi
- Yate 15.6 mi
Local questions answered
What happens at the survey visit in Portishead?
We look at the wall, the floor and ceiling either side and what sits above, measure the opening you want, and note cables, pipes and access for the steel. It usually takes under an hour and there is no charge.
Can you work on older or listed homes in Portishead?
Yes. Older homes often have lime mortar, timber lintels or shallow footings, which the engineer allows for. Listed buildings need listed building consent for internal structural changes as well as building regulations approval, and that must be in place first.
Will removing a chimney breast cause damp?
It can if the remaining flue is sealed with no airflow, because moisture and condensation get trapped inside. Fitting a vent in the remaining breast or wall and a ventilated cap on the chimney pot keeps air moving. If the stack is removed and the roof made good, the risk from the flue goes away.
What if my chimney breast was removed without support?
Get it checked by a structural engineer as soon as possible. If the upper breast or stack has no adequate support, it may need propping straight away. A support can usually be fitted retrospectively, and in England and Wales a regularisation application to the local authority can be used to get the unauthorised work approved.
Are gallows brackets allowed for chimney breast support?
Sometimes, but not always. Gallows brackets are used for lighter loads in certain situations, yet many building control bodies will not accept them where the remaining breast is heavy, sits on a party wall or carries the neighbour's flues. The structural engineer proposes a method and building control decides whether it is acceptable.
How much does chimney breast removal cost in Portishead?
As a guide, budget £1,550–£3,100 including VAT for chimney breast removal (ground floor) in Portishead, based on published UK cost guides adjusted for prices in the South West (+3%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.