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

Chimney breast removal · Llanelli

Chimney breast removal in Llanelli

Chimney breast removal in Llanelli, from free survey to completion certificate.

  • Price fixed in writing once scope is agreed
  • Building control arranged
  • Temporary works and making good included

Free survey in Llanelli

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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

What chimney breast removal involves in Llanelli

We cover chimney breast removal in Llanelli (SA15) and the streets around it. The wider Carmarthenshire area is covered as well. Each job is designed by a structural engineer and approved through Carmarthenshire County Council before work begins.

We cover the survey visit, structural calculations from a qualified engineer, building control, party wall notices through a party wall surveyor where needed, temporary support, removal, the steelwork and making good. Whether you are taking out the ground-floor breast only or the full height, the itemised written quote shows each stage.

Things to plan for

  • 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.
  • Some owners remove breasts in the loft to make space for a conversion while keeping the stack on the roof. That leaves the stack carried at loft level on steel or another support, which the engineer must design and building control must approve before work starts.
  • 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.
  • 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.
  • 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.

Four stages, one team

  1. 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.

  2. Design and price

    Calculations come back from the engineer and we confirm your fixed written price, line by line.

  3. Building control

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

  4. 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 Llanelli

As a guide, budget £1,350–£2,750 including VAT for chimney breast removal (ground floor) in Llanelli, 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
Loft conversion steels£2,300–£5,450Supply and fit of floor and ridge steels on padstones, including lifting into the roof space
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.

Approvals in Llanelli

Removing a load-bearing wall in Wales needs approval under the Welsh building regulations before work starts. For Llanelli the application goes to Carmarthenshire County Council or a registered building control approver, with the engineer's calculations, and a completion certificate follows the final inspection.

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 near Llanelli

Questions about chimney breast removal in Llanelli

Who approves chimney breast removal in Llanelli?

Structural work in Llanelli needs a building control application to Carmarthenshire County Council under the Welsh regulations, with a commencement notice before work starts. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.

How much does chimney breast removal cost in Llanelli?

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

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.

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.

Do you also work near Llanelli?

Yes. We also cover nearby towns including Burry Port, Gorseinon, Ammanford and Clydach.

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.