Chimney Breast Removal Kentish Town

Chimney breast removal with steel beam support in Kentish Town, the beam sized by the engineer we appoint and the work signed off by building control.

The back bedroom of a Kentish Town terrace is often barely wide enough for a single bed once the breast and its two alcoves are counted out. Losing it changes the room entirely. We prop, remove, set the steel that carries the retained stack and replaster, with our founder's 30+ years of hands-on experience behind every stage.

In Kentish Town, 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 (indicative London ranges, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Kentish Town.

Price guide

WorkIndicative London range
One floor, steel beam (the usual route)£2,200 to £3,250
One floor, gallows brackets where the engineer and building control accept them£1,500 to £2,500
Two floors£3,000 to £5,000

Indicative London ranges (MyBuilder and Checkatrade, 2026), not a quotation. Prices checked September 2026. Full breakdown: Chimney Breast Removal Guide.

How the job runs

  1. Free site survey at your Kentish Town 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 Camden 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.
A chimney breast removed by GS Renovation, with the remaining stack propped and the brickwork exposed
The breast taken out at ground floor. Props carry the joists while the support above is formed.

Chimney breasts in Kentish Town's period terraces

Most terraces around Kentish Town still have their original chimney breasts, and the flues are typically shared through the party wall with the house next door. Because a breast helps carry the masonry and stack above, removing one is never just knocking out brickwork. We start with a structural engineer's assessment of what the breast is supporting, floor by floor, before deciding how to hold up what stays.

Homeowners here usually remove the breast in a bedroom or reception while keeping the stack above, or take the lot out from ground to roof. Where the breast goes but the stack stays, the retained masonry is carried on a steel beam bearing on padstones, or on gallows brackets only where the engineer and building control accept them. A stack is never left hanging unsupported over the room below.

Housing in Kentish Town

About 8,940 homes are listed for Kentish Town, and the mix is 13% houses to 87% flats, with 52% built after 1945, 4% in 1919 to 1939 and 44% earlier. Since most homes here are flats, post-war blocks in Kentish Town rarely have breasts, so one in a flat is checked by the engineer first.

Chimney stacks in the Kentish Town Conservation Area

Kentish Town Conservation Area was designated in three stages, beginning with Torriano Cottages on 18 June 1985. If your house is inside it, the stack above the roof is part of the street scene the designation covers, while the breast inside the room is a building control matter. Removing the breast and keeping the stack means the stack is carried on steel designed by the structural engineer we appoint. That is more work inside, but it leaves the roofline and the planning position exactly as they were.

Taking the stack down as well is a separate decision. Where it needs planning permission in a conservation area, the application must include a heritage statement describing the significance of the heritage assets affected. For a Kentish Town terrace that means showing how the roofline reads with and without the stack, which takes drawings and photographs rather than a sentence. We programme the two options separately, so you can see how much time removing the stack adds before deciding whether the room needs it.

Party wall and building control in NW5

Where an entire full-height stack is redundant and the house is neither listed nor in a conservation area where the stack is expected to stay, it can be removed completely and the roof made good with new rafters, felt, battens and matching tiles or slates, rather than leave dead weight and a damp-prone flue in the wall. Any flue we retain is capped with a vent and ventilated at the base so the redundant shaft cannot trap moisture and stain the finished plaster later on.

Because the stack sits within the shared party wall with the neighbour, removal and the fixing of gallows brackets are notifiable under the Party Wall Act, so you serve notice before work begins. The structural support is notifiable under the Building Regulations, and Camden Council's building control inspects and certifies it. We manage the engineer who produces the calculations, safe removal and the making good as one job.

Aerials, dishes and what sits on the stack

The chimney stack is where a lot of things ended up over the years. Television aerials, satellite dishes and sometimes your neighbour's are lashed to it, and where the stack comes down above the roof all of that has to come off and be refitted elsewhere beforehand. It is a small item that stops a job dead if it is left until the day the scaffold goes up.

We check the roof before quoting, including whether a shared aerial serves flats in the building, which is common in the converted NW5 houses off Kentish Town Road. Lead flashings and any soakers around the stack come off carefully so the roof can be made good properly afterwards. If solar panels sit nearby, an electrician isolates them before anyone works over that part of the roof. None of it is difficult, but all of it needs arranging in advance, and a signal that stops working is the sort of thing a neighbour remembers.

  • Skirting, cornice and picture rail matched back in
  • Flue capping with ventilation to keep the stack dry
  • Bedroom breast removal to reclaim usable floor space
Service areaKentish Town · NW5
Local authorityCamden Council
Part ofNorth London (Inner London)
Typical homesPost-war council estates and Victorian terraces, mostly flats
Housing stock44% built before 1919, 4% interwar, 52% post-war; 87% flats, 11% terraced, 2% semi-detached or detached
Also covered nearbyCamden Town, Holloway, Hampstead, Highbury and Highgate

VOA Council Tax stock of properties, March 2025, for Kentish Town West and Kentish Town East. Counts rounded by the VOA.

Trusted Chimney Breast Removal in Kentish Town

Kentish Town homeowners choose GS Renovation because we treat chimney breast removal as the structural job it is. You get support designed by the engineer we appoint, a steel beam, or gallows brackets only where the engineer and building control accept them, correctly fixed, the drawings your party wall notice needs, Camden building control managed end to end, and tidy working in an occupied NW5 home, finished and replastered, all backed by our founder's 30+ years on the tools.

30+ YearsFounder's experience
Fully Insured5 year guarantee
4.9 / 531 MyBuilder reviews
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

★★★★★ 4.9 average from 31 verified reviews on MyBuilder

★★★★★
We loved working with George and Ibrahim and would highly recommend them. They have done splendid job on our new kitchen refurb which including new…
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George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
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★★★★★
It's the second time I have hired George and he has been absolutely professional and the work he did resembles perfectly what I had in mind. Being an…
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FAQ

Frequently Asked Questions about Chimney Breast Removal Kentish Town

Can you quote chimney breast removal for an NW5 property over the phone?

A phone quote for chimney breast removal at an NW5 property would be a figure that changes, so GS Renovation gives the range, £2,200 to £3,250 for one floor on a beam (indicative), and prices after a visit. What the job costs depends on what only a survey shows, because removing one floor or two decides the support. Talk the scope through on 07472 424 226; the Kentish Town survey is free.

How do we stop damp coming through where the Kentish Town breast was?

Ventilate the flue and use the right plaster. Sealing an NW5 flue airtight is what traps moisture against soot-laden brickwork, and the salts in that soot then draw damp through anything you skim over it. We leave a vented cap at the pot, form a low-level vent in the room, and specify a salt-inhibiting backing coat where the old flue face will be plastered. Persistent patches are cut out rather than painted.

Can I remove my Kentish Town chimney breast if the flat above keeps theirs?

Yes, if the breast overhead is carried properly. The upper flat's masonry and stack need a steel beam under them, or brackets fixed into the wall where the inspector accepts those. With 87% of Kentish Town homes being flats, that breast usually belongs to someone else, so the freeholder's written consent and your upstairs neighbour's agreement come before the engineer designs anything.

Should the whole stack come down in Kentish Town or only the breast?

Removing breast and stack together takes the load away completely, so nothing is left hanging. Keeping the stack means a beam or approved brackets must hold it for the life of the building. Taking a stack off the roof alters the exterior, and for a home in a conservation area that can bring planning into play, and a listed building needs listed building consent, so check before choosing.

What does the party wall process involve for a Kentish Town chimney breast?

In a terrace the breast is normally built into the party wall, so next door must be served with a party structure notice two months or more before the first brick moves. Back-to-back breasts are common, with the neighbour's flues sharing the same masonry. Where they agree, work starts on the notified date; where they object, surveyors draw up an award fixing the method and recording the condition of their rooms.

Which floor should a Kentish Town chimney breast removal start from?

Where breasts come out on several floors, removal generally runs from the top down, so masonry is never left unsupported above a missing section. Taking out only the ground-floor breast leaves the upper breast and stack hanging, which is only acceptable with a steel beam or approved brackets beneath. Building control inspects that support before it is boxed in and plastered.

How can a Kentish Town owner tell whether the house is in a conservation area?

Check Camden's records for your street rather than assuming. There are 40 conservation areas in Camden, covering about half of the borough, and the Kentish Town one was designated in three stages from 18 June 1985, so its boundary has grown over time. For a chimney job it matters: in an unlisted house outside a conservation area, removing the stack above the roof is usually a building control and party wall matter only.

Does removing a chimney breast in a Kentish Town leasehold flat need full plans?

Yes. A leaseholder in Camden must have the freeholder's consent and must make a full plans application rather than a building notice. With 87% of Kentish Town homes being flats, that is the normal route here. Unless yours is the top flat, the stack above your breast passes through the flats above, so the freeholder is likely to want the engineer's support design, and the full plans submission can carry the same drawings.

Is the boxed column in a post-war Kentish Town flat a chimney breast?

Not necessarily. 52% of Kentish Town homes were built after 1945, and a flat of that age may have a boxed column that is a service duct, a structural column or a ventilation riser rather than a chimney. Removing it could cut off services to other flats or take away structure. We open a small inspection hole and check the block's drawings with the managing agent before anyone treats it as a breast.

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