Chimney breast removal with gallows bracket or beam support in Old Street. Trusted, professional, 30+ years' hands-on experience.
Building regulations approval is not optional for this work, even in an apartment near Old Street that feels entirely modern. We submit, arrange inspections at propping and at completion, and hand over the certificate for your file. A structural engineer specifies the support for the retained masonry and we build to that drawing, nothing else.

Not every Old Street home has a chimney breast; the newer riverside apartments near the Angel rarely do. But converted warehouses and older EC1 buildings often keep original brick flues, and if you remove a breast on a lower floor you must support whatever masonry remains above. Leaving a stack hanging unsupported is never an option, so we begin with a structural engineer confirming exactly what the breast is carrying.
Where masonry is retained higher up, we support it on steel gallows brackets bolted into sound wall, or a small beam where brackets are unsuitable for that particular structure. In many conversions the redundant stack runs the full height and can be taken out entirely, with the roof or floor above made good afterwards. Either way the load path is engineered, propped and inspected before any breast comes down.
In an Old Street conversion the flue you are removing may share a wall with the flat next door, which can bring the Party Wall Act into play; where it does, you serve notice on the adjoining owner before work starts. As almost all these apartments are leasehold, we also secure the freeholder's licence to alter and work within the block's management rules on noise and access.
The structural support is notifiable under the Building Regulations, so Islington Council's building control inspects the gallows brackets or beam and certifies the work. We manage the full sequence: the engineer's calculations, the freeholder consent and safe removal, propping, capping any redundant flue with ventilation to prevent damp, and replastering so the room reads as though the breast was never there.
Old Street homeowners choose GS Renovation because we treat chimney breast removal as the structural job it is. You get an engineer-designed support solution, freeholder consent and Islington building control all handled, tidy working in an occupied leasehold flat, and a fully certified result, backed by 30+ years across EC1.
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…
I am very happy to recommend George after he completed the work on my 2 bathrooms. He worked very hard to make sure everything was completed and even…
Saaid is the best craftsman I have worked with. He knows what he is doing from the very beginning. He has a great knowledge of construction…
FAQ
Expect the figure to track scope rather than postcode. The chimney breast removal elements that move a quotation are span, access and condition, all of which we check at the EC1 property before writing anything down. GS Renovation then itemises labour, materials and the Islington Council element for your Old Street home. Comparing that against another Islington builder is straightforward because every line is visible. Ring 07472 424 226 and we will arrange a free survey at the EC1 property in Old Street. As a rough guide, chimney breast removal in London costs roughly £1,500 to £2,500 for a single floor where gallows brackets are accepted, or £2,200 to £3,250 where a steel beam is needed, which is the more common route now that LABC has withdrawn its standard gallows detail; two floors run £3,000 to £5,000 (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.
It depends on the scope, and we will map it at survey. Once we have seen the EC1 property, chimney breast removal can be programmed properly for your Old Street home, including the making good that modern apartment blocks with concrete frames and shared service risers demand. GS Renovation issues that with the quotation. Nothing about an Islington timeline is left to be worked out on site. Email info@gsrenovationltd.co.uk with the EC1 address and we will programme the Old Street work properly from the outset.
Size, mostly. We are small enough that you know who is coming to your EC1 home for chimney breast removal, and large enough to run the whole Old Street project without bringing in strangers halfway through. GS Renovation keeps one named manager on the Islington site throughout. The 31 MyBuilder reviews behind our 4.9 rating describe exactly that. Email info@gsrenovationltd.co.uk and we will arrange a free survey. The Old Street reviews and Islington references are all public.
Usually yes, because the stack sits within the party wall shared with them. That makes the work notifiable under the Party Wall etc. Act 1996, and notice must be served before starting. We prepare the notices for your Old Street property and advise on the schedule of condition.
Yes, and each project is treated on its own merits. Properties across Old Street vary more than people expect, so chimney breast removal at one EC1 address may need a different sequence from an apparently identical house two streets away. GS Renovation surveys rather than assumes. That is what keeps a fixed price fixed on a modern and recently converted home in Islington. Ask on 07472 424 226 why chimney breast removal at your EC1 address may differ from the house next door.
The freeholder's licence to alter comes first, then Building Regulations approval. Warehouse buildings around Old Street were built with load-bearing brick piers, and the projection in a converted flat is often one of those or a boxed service riser rather than a domestic breast. An engineer's opening-up inspection and Islington Council building control follow. We investigate a small area before anyone designs anything, because the answer changes the whole scheme.
Yes to both. Chimney breast removal projects run across Old Street and the EC1 area, the rest of Islington and much of North London, and an EC1 address carries no travel surcharge. GS Renovation will tell you plainly if a property sits too far out to service properly. Ring 07472 424 226 with the postcode for a definite answer. The survey that follows is free and carries no obligation. Aftercare and snagging are then handled by exactly the same team afterwards.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Old Street. Explore what else we do locally:
Same Service, Nearby Areas
We carry out chimney breast removal across Old Street and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for chimney breast removal in Old Street. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.