Chimney Breast Removal Leatherhead

GS Renovation removes chimney breasts in Leatherhead houses, supporting whatever is left above on a steel beam specified by the structural engineer we appoint, or on gallows brackets only where the engineer and building control accept them. The Southern Building Control Partnership, which provides building control for Mole Valley, wants that support seen before it is covered. We coordinate the application and the inspections. Fully insured, with free no obligation quotations.

For Leatherhead, 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; Surrey work generally runs below that. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Leatherhead.

How the job runs

1. Free site survey at your Leatherhead 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 Southern Building Control Partnership 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.

What holds up the masonry above decides the method and the cost

A steel beam on padstones is now the usual route, and gallows brackets are used only where the engineer and building control accept them. The structural engineer we appoint decides which, and we build to those calculations. The Southern Building Control Partnership lists a structural elements inspection, called before structural timbers, steelwork or concrete are covered up, so whichever support is used is seen before it is boxed in.

Indicative London ranges, MyBuilder and Checkatrade, 2026, put a chimney breast removal on one floor at £2,200 to £3,250 where a steel beam is used, and £1,500 to £2,500 where gallows brackets are accepted. Across two floors it is £3,000 to £5,000. We quote after seeing the breast and the stack, free and with no obligation.

Housing in Leatherhead

Leatherhead has around 6,970 homes on the Council Tax list: 69% post-war, 16% interwar and 14% predate 1919, with 44% flats and 56% houses. A breast in a detached house in Leatherhead needs building control but no party wall notice, and 19% of homes here are detached.

Building control here is not run by Mole Valley

Mole Valley District Council does not run its own building control service. The Southern Building Control Partnership is its Local Authority Building Control team, a shared service established in 2017. Removing a chimney breast takes support away from what is above it, so it is notifiable work, and the application and the inspections go to that partnership.

That matters for timing more than for paperwork. The support to the residual stack, and the making good around it, have to be arranged so the inspection happens while the steel or the brackets are still visible. We hold the engineer's calculations and the inspection booking together, so you have one point of contact.

The stack above the roof, and the elevation it sits on

Taking the stack down as well as the breast changes the outside of the house, and in Leatherhead that can matter. Article 4 directions are in force in parts of three of Mole Valley's 26 conservation areas: Leatherhead, Dorking and Brockham. The council describes those directions as protecting features that contribute to the special interest of streets within a conservation area.

Whether your address is inside the direction is an address level question. The Mole Valley planning team can be reached on 01306 885001 or at planning@molevalley.gov.uk, and it is worth asking before a stack comes down. Where the stack stays and only the breast goes, the work is internal and the question does not arise in the same way.

• Ceiling and joist support where the breast carried them
• Programme planned around party wall notice periods for a shared stack
• Rubble bagged and carried out rather than dropped inside

VOA Council Tax stock of properties, March 2025, for Leatherhead North and Leatherhead South & Ashtead South. Counts rounded by the VOA.

Useful next reading for a chimney breast removal project in Leatherhead: home renovation in Leatherhead, chimney breast removal in Epsom, builders across London, the Party Wall Act for a breast in a shared wall, chimney breast removal across London and Party Wall Act Explained.

The GS Renovation Difference in Leatherhead

A chimney breast removal in Leatherhead splits into two questions: what supports the masonry left above, and whether anything changes outside. The first goes to the structural engineer we appoint and to the Southern Building Control Partnership, which handles building control for Mole Valley. The second goes to the council, because an Article 4 direction applies in part of the conservation area. We coordinate the building control application and inspections. We are fully insured and quotations are free and carry no 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.