Chimney Breast Removal Brentwood

A chimney breast is a load bearing element, and taking one out leaves whatever sat above it needing support. That support is usually a steel beam on padstones, with gallows brackets only where the engineer and building control accept them. We survey, appoint a structural engineer, build to the calculations and coordinate the building control application and inspections. This page sets out how that works on a Brentwood property.

For Brentwood, on London-derived ranges removing a breast on one floor typically costs £2,200 to £3,250 on a steel beam, and £3,000 to £5,000 across two floors; Essex work generally runs below that. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Brentwood.

How the job runs

1. Free site survey at your Brentwood address: which floors the breast runs through, a shared stack, any live flue.
2. The engineer we appoint designs the support, and the work is registered with Brentwood Borough Council building control or an approved inspector. On a shared wall you serve the party wall notice as building owner; we supply the drawings.
3. The floor above is propped and the breast comes down in courses from the top; what remains sits on the support the engineer specified.
4. Building control inspects the support before it is covered. We make good, and the completion certificate follows.

Brentwood's building control routes, and why a breast is not a demolition notice

Brentwood Borough Council's building control service accepts building notice applications, full plans submissions and regularisation certificate applications, plus a notice of intended demolition. The demolition notice is for taking down a building or a substantial part of one. Section 80 of the Building Act 1984 excludes internal demolition in a house that is occupied and will stay occupied, so a breast removal goes in as a building notice or a full plans application. Taking a whole stack down through the roof is external work, so that route is confirmed with the council before a scaffold is ordered.

The regularisation certificate route exists for work already carried out without approval. If a previous owner took a breast out and there is no paperwork, that is the conversation to have with the council. We can look at what is currently holding the stack above and tell you what an engineer will want to see.

Housing in Brentwood

By the valuation list's count, Brentwood holds about 25,620 homes, 68% houses and 32% flats; by age, 11% were built before 1919, 11% between the wars and 78% since 1945. 21% of homes here are semi-detached; the shared stack of a semi in Brentwood means a party wall notice before removal.

The support gets inspected before it is boxed in

Brentwood Borough Council's published list of building control inspection stages includes structural beams and columns prior to encasement, at stage 8 of 12. A beam carrying a retained breast is therefore seen before it is plastered over, which sets the order of the finishing trades.

A steel beam on padstones is now the usual route, because LABC withdrew its standard gallows bracket detail in 2024. Brackets are still accepted in some cases, and that call belongs to the structural engineer and the building control surveyor rather than to us. We set out both routes, with their prices, before you commit to either.

Older Brentwood houses can be timber framed behind render or brick

Brentwood Borough Council's conservation area appraisal describes the town's housing stock in the 19th century. It consisted mainly of late medieval and early modern timber framed buildings, one and a half and two storeys in height, mostly rendered or faced up in brick. A stack bonded into fabric of that kind does not behave like one in solid Victorian brickwork.

There are 512 listed buildings in the borough: 12 at grade I, 27 at grade II* and 473 at grade II. Listing covers internal features, so on a listed property removing a chimney breast is a heritage consent question as well as a structural one. Check the list entry for your address before a design is drawn.

• Chimney breast removal on one floor or on every floor
• Full chimney stack removal and roof making good
• Steel beam support on padstones for a retained stack above

VOA Council Tax stock of properties, March 2025, for all 6 statistical areas in Brentwood. Counts rounded by the VOA.

For the wider picture around chimney breast removal in Brentwood, see home renovation in Brentwood, chimney breast removal in Hornchurch, how building control signs off a chimney breast removal, the Party Wall Act for a breast in a shared wall, chimney breast removal anywhere in London and Cracks in Walls: When to Worry.

Why Brentwood Homeowners Choose GS Renovation

Chimney breast removal is priced by what has to carry the weight above, and that is decided by a structural engineer we appoint rather than by whoever quotes cheapest. We hold the propping, form the support, make good the ceiling and floor, and present the work for inspection before it is encased. Where the stack above is retained, supporting it is the whole job. We also deal with the debris, the flue, the making good and the building control paperwork, so it is one contract rather than four. GS Renovation Ltd is fully insured, registered in England, company number 14611254. Quotations are free and without obligation.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.