Structural alterations, new openings and steel support in Hackney. Trusted, professional, 30+ years' hands-on experience.
GS Renovation carries out structural alterations throughout Hackney, whether it is a new opening in a Hoxton warehouse conversion, replacement joists in an E9 apartment or a supported opening in a new-build near Victoria Park. Drawing on 30+ years in East London, we handle new openings, replacement joists and supported openings with engineered design and full building control certification.

Warehouse conversions in E2 and E8 often carry unusual structure: heavy original masonry, steel and timber frames, and floors that were never built for domestic partitioning. When you want a new opening between rooms or a wider doorway, the load path is rarely obvious, so we start with a structural engineer who calculates what is needed and specifies the beam, its bearings and the padstones it sits on.
New openings are formed with the correct steel, temporary propping and careful staged demolition, then the load is transferred once the beam is bedded on its padstones. Where floors sag or joists have been weakened by earlier alterations, we fit replacement joists to the engineer's spec. Underpinning is occasionally needed at ground level, and we do that in controlled sequential bays under engineered supervision.
In Hackney's leasehold flats, structural alterations need the freeholder's licence to alter before work starts, and we liaise with the managing agent over building-management rules, access routes and protection of communal areas in N1 and N16 blocks. Getting this right early keeps the project moving and avoids disputes with the freeholder or the wider building later on.
Structural alterations are governed by the Building Regulations, not planning permission, so Hackney Council building control inspects and certifies the work. Planning consent only comes into play for exterior changes in a conservation area or to a listed building. We separate the two clearly, manage the notifiable structural elements, and hand you the completion certificate that protects your flat's value and any future sale.
Hackney clients choose GS Renovation because structural alterations here demand engineering, not guesswork. One team delivers the engineer's calculations, freeholder consent and managing-agent coordination, correctly propped and staged works, and Hackney building control sign-off. We keep the flat clean and habitable while we work, backed by more than 30 years of structural experience across East London.
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…
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…
FAQ
By surveying first and writing it down afterwards. A Hackney property is measured, the structure is confirmed, and the structural alterations scope is agreed before GS Renovation puts a figure to it. The quotation then splits into structure, services and finishes, with the Hackney Council fee visible rather than bundled. Homeowners around E2 can hold us to it, because it is in writing. Ring 07472 424 226 or email info@gsrenovationltd.co.uk to book the E2 visit. As a rough guide, structural alterations in London ranges from roughly £1,500 for a simple opening to £15,000 or more where underpinning or major works are involved (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.
Sometimes, and it needs the original frame to be understood first. In your Hackney block of concrete construction, some walls are structural elements carrying the building's stability, and cutting one is not a matter of adding a lintel. The engineer establishes what the wall does and whether the building's designer allowed for openings. In some blocks the honest answer is that the wall cannot be touched.
The construction and the lease together. Many Hackney estate homes are system built or of concrete panel construction, where the panels are structural and services are cast into them. Alterations that would be routine in a brick terrace can be impossible or disproportionately expensive here. The lease will also reserve structural change to the landlord. Both are established before a design is developed.
Rarely by an individual leaseholder. A balcony or access deck on your Hackney block is usually structure and common part rather than part of the demised home, so alteration falls to the freeholder rather than the occupier. Enclosing a balcony also changes the fire and drainage arrangements for the building. The starting point is the lease plan showing what is actually owned.
No. The lease sets what may be altered and what requires consent, and structural alteration is almost always reserved. Some Hackney leases prohibit it outright rather than making it conditional. Establishing the position from the lease before drawings are commissioned avoids a design that can never be built. Where consent is available it is conditional, and those conditions form part of the works.
Public liability cover at a level appropriate to the building, and the certificate should be seen rather than assumed. For a Hackney block the freeholder or managing agent will normally require evidence before granting consent, and will often specify a minimum. We provide that on request. A contractor who cannot produce a current certificate is not one to let into a shared building.
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 Hackney. Explore what else we do locally:
Same Service, Nearby Areas
We carry out structural alterations across Hackney and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for structural alterations in Hackney. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.