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

Chimney breast removal · Mitcham

Chimney breast removal in Mitcham

Steelwork, approvals and making good for chimney breast removal in Mitcham and nearby.

  • Free survey visit in Mitcham
  • Engineer's calculations arranged
  • Building control handled for you

Free survey in Mitcham

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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 Mitcham

We cover chimney breast removal in Mitcham (CR4, SM1, SM4) and the streets around it. We also cover the surrounding towns and villages in London. Each job is designed by a structural engineer and approved through local building control before work begins.

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

  • In England and Wales, cutting away a chimney breast attached to a party wall is notifiable work under the Party Wall etc. Act 1996. Notice must be served on the neighbour before work begins, and their response decides whether party wall surveyors need to be appointed.
  • Once the breast is gone, the wall behind it is often rough, sooty or uneven. It is cleaned back, dubbed out where needed and plastered flat, and the floor where the hearth sat is filled level to meet the surrounding boards or screed.
  • 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.
  • Chimney brickwork is heavy and dirty. Even a single breast produces a lot of rubble and soot, so a skip or waste collection is planned in advance, and floors, stairs and furniture along the route out are protected.

What happens, step by step

  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 a building notice or full plans application to the local council's building control team, so approval is in place before the wall is touched.

  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 Mitcham

As a guide, budget £1,900–£3,850 including VAT for chimney breast removal (ground floor) in Mitcham, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Chimney breast removal (ground floor)£1,900–£3,850Ground-floor breast removed, steel to support the breast above, building control and making good
Loft conversion steels£3,200–£7,700Supply and fit of floor and ridge steels on padstones, including lifting into the roof space
Through-lounge knock-through£3,200–£7,050Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill
Plastering and making good£380–£1,540Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up

Figures include our approximate regional adjustment for London prices (+28%) and are rounded. How these figures are worked out.

Approvals in Mitcham

For Mitcham, building control is provided by the local council's building control team, or by a registered building control approver if preferred. We send them the engineer's calculations with a building notice or full plans application and book the inspections. Work done without approval can cause problems at sale and is far dearer to put right later.

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.

Building rules in England

Chimney breast removal near Mitcham

Questions about chimney breast removal in Mitcham

Do you also work near Mitcham?

Yes. We also cover nearby towns including Morden, Wimbledon, Streatham and Carshalton.

Can you work on older or listed homes in Mitcham?

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.

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.

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 is included in a chimney breast removal quote?

The itemised written quote covers the survey, engineer's calculations, building control, any party wall notices, temporary support, the steel or other support specified, removal and waste, venting or capping, and plastering and floor making good. Scaffolding and roof work appear as separate lines where the stack is involved, and the price is fixed in writing once the scope is agreed.

Do you cover Mitcham for chimney breast removal?

Yes. We carry out chimney breast removal in Mitcham and the CR4, SM1, SM4, SM5 and SW16 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

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.