Steel BeamInstallers
Ground-floor chimney breast removed with a short steel beam carrying the breast above

Chimney breast removal · Bridgend

Chimney breast removal in Bridgend

Survey, engineer's design and installation of chimney breast removal anywhere in Bridgend.

  • Survey, design and installation in one
  • Covering CF31, CF32, CF33, CF34
  • Inspected before it is covered

Free survey in Bridgend

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  • 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 Bridgend: how it works

Chimney breast removal is taking out the projecting brickwork that houses the flues from fireplaces, usually to gain floor space or straighten a wall. If any of the breast or stack above stays in place, it must be carried on steel or another support the engineer designs and building control accepts, so it is never left unsupported.

We carry out chimney breast removal throughout Bridgend, for homeowners, landlords and builders who need the structural part done properly. We work in Coity, Porthcawl and Maesteg and the surrounding villages. You get an itemised written quote that shows the calculations, approvals, steel, labour and finishing as separate lines.

Worth knowing before you start

  • 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.
  • 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.
  • A flue still serving a gas fire, boiler or wood burner cannot be removed until that appliance is disconnected and an alternative arranged. Work on any gas appliance or pipe must, by law, be done by a Gas Safe registered engineer.
  • 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.

How the job runs in Bridgend

  1. Free visit

    A short visit to Bridgend to see the job, agree what you want and check the bearings, floors and services that affect the design.

  2. Calculations

    The engineer's calculations and a simple drawing are prepared for your opening and shared with you before anything is ordered.

  3. Building control

    We submit the application or notice to Bridgend County Borough Council under the Building Regulations as they apply in Wales, before work starts.

  4. Steel in, made good

    On site we prop, open up, fit and pack the steel, then fire protect, box in and plaster once the inspection is done.

How much should I budget in Bridgend?

As a guide, budget £1,350–£2,750 including VAT for chimney breast removal (ground floor) in Bridgend, based on published UK cost guides adjusted for prices in Wales (-9%).

JobTypical guide rangeWhat it usually covers
Chimney breast removal (ground floor)£1,350–£2,750Ground-floor breast removed, steel to support the breast above, building control and making good
Plastering and making good£270–£1,090Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up
Through-lounge knock-through£2,300–£5,000Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill
Load-bearing wall removal with steel beam£1,800–£4,550Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good

Figures include our approximate regional adjustment for prices in Wales (-9%) and are rounded. How these figures are worked out.

Building rules for Bridgend

In Wales, structural alterations come under the Building Regulations 2010 as they apply in Wales. Bridgend County Borough Council handles building control for Bridgend. For work started or approved from 1 July 2026, the Welsh system uses an application to building control, dutyholders appointed in writing, a commencement notice before work starts and a compliance statement at the end.

The Party Wall etc. Act 1996 applies in Wales as well as England, so a beam bearing into a shared wall needs a party structure notice at least two months before work starts. We arrange notices through a party wall surveyor.

Building rules in Wales

Chimney breast removal by town

Local questions answered

Do I need a party wall agreement for chimney breast removal in Bridgend?

Yes, if the beam bears into a shared wall: the Party Wall etc. Act 1996 applies in England and Wales, and a party structure notice must be served at least two months before that work starts. We arrange it through a party wall surveyor.

What happens at the survey visit in Bridgend?

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.

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.

Can I remove a chimney breast on the ground floor only?

Yes, but whatever stays above must be properly supported. The structural engineer designs that support, usually a steel beam bearing onto walls that can take the load, and building control must approve it before work starts. Leaving an upper breast or stack without adequate support is dangerous and is a problem surveyors look for.

Can I remove a chimney breast downstairs and keep the fireplace upstairs?

Usually, as long as the upstairs breast and its flue stay intact and are carried on a support the engineer designs for that load. Building control must approve the arrangement. If the upstairs fireplace has a gas fire, any work on it or its supply must be carried out by a Gas Safe registered engineer.

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.

Can I stay at home while the work is done in Bridgend?

Usually, yes. The work area is screened and floors are protected. The rooms either side of the opening are out of action for a few days, and there is some noise and dust while the masonry comes out.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.