Chimney breast removal · Derry/Londonderry
Chimney breast removal in Derry/Londonderry
Chimney breast removal in Derry/Londonderry, from free survey to completion certificate.
- Survey, design and installation in one
- Covering BT47, BT48
- Inspected before it is covered
- Free survey visit
- Engineer's calculations arranged
- Building control handled
- Fixed written price once scope is agreed
- England, Wales, mainland Scotland & NI
About our chimney breast removal service in Derry/Londonderry
For homes in Derry/Londonderry and the BT47 and BT48 districts, we handle chimney breast removal from survey to sign-off. Our coverage runs across Derry City and Strabane, so nearby villages are included too. The beam is sized by a structural engineer and inspected before it is boxed in.
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.
Key points for your project
- The price depends on how many floors the breast spans, whether the stack is kept or removed, the support method the engineer specifies, roof and scaffold work, and how much rubble needs taking away. Each is listed separately in the quote.
- 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.
- 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.
- 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.
- Removing only the ground-floor breast leaves the upper breast and stack in place, so they must be supported. Taking the breast out on every floor and removing the stack above the roof avoids that load entirely, but involves roofing work and more disruption.
Four stages, one team
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
A full plans application or building notice goes to Derry City and Strabane District Council under the Building Regulations (Northern Ireland) 2012 before work begins.
Fit, inspect, finish
The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.
Guide prices for chimney breast removal in Derry/Londonderry
As a guide, budget £1,300–£2,600 including VAT for chimney breast removal (ground floor) in Derry/Londonderry, based on published UK cost guides adjusted for prices in Northern Ireland (-14%).
| Job | Typical guide range | What it usually covers |
|---|---|---|
| Chimney breast removal (ground floor) | £1,300–£2,600 | Ground-floor breast removed, steel to support the breast above, building control and making good |
| Through-lounge knock-through | £2,150–£4,750 | Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill |
| Plastering and making good | £260–£1,030 | Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up |
| Structural calculations for a beam | £220–£640 | Site measure or photos, beam and padstone design and calculations for building control |
Figures include our approximate regional adjustment for prices in Northern Ireland (-14%) and are rounded. How these figures are worked out.
Building control and neighbours in Derry/Londonderry
Building control in Derry/Londonderry is run by Derry City and Strabane District Council. Beams and new openings are controlled work under the Northern Ireland regulations, so we apply before anything is removed and the steel is inspected before it is covered.
The Party Wall etc. Act does not extend to Northern Ireland. Shared walls are dealt with under your title and the general law, so we recommend agreeing access and the work with your neighbour before it starts.
Chimney breast removal in Derry/Londonderry: your questions
Who approves chimney breast removal in Derry/Londonderry?
Structural work in Derry/Londonderry needs a full plans application or building notice to Derry City and Strabane District Council. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.
Do you cover Derry/Londonderry for chimney breast removal?
Yes. We carry out chimney breast removal in Derry/Londonderry and the BT47 and BT48 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.
Should I remove the chimney stack as well?
It often makes sense if the breast is coming out on every floor, because then nothing is left to support. It needs scaffolding and roof repairs, and in terraces the stack is often shared, so your side may not be removable without affecting your neighbour's. The engineer and building control confirm what is possible.
How long does chimney breast removal take?
A ground-floor breast with a steel beam supporting the masonry above usually takes two to four working days, including propping, fitting the steel, removing the brickwork and basic making good. Full removal from ground floor to roof takes longer because of scaffolding, roofing work and weather, and plaster needs time to dry afterwards.
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 happens at the survey visit in Derry/Londonderry?
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.