Structural alterations, new openings and steel support in Wapping. Trusted, professional, 30+ years' hands-on experience.
GS Renovation carries out structural alterations throughout Wapping's E1 riverside homes, whether that is forming a new opening in a converted warehouse or replacing tired joists in an older dock building. Drawing on more than 30 years of structural work in East London, we design, prop, install and certify every change to your flat.

Wapping's warehouse conversions were never laid out as flats, so alterations here often mean cutting a fresh opening through original masonry to connect spaces or reposition a doorway. Each new opening needs a lintel or steel beam sized to the load above, bearing onto padstones, with temporary propping while the wall is cut. We stage the demolition carefully so the structure is supported at every moment.
In the older brick buildings near the Docklands we also replace failed or undersized floor joists, strengthen openings that previous owners cut without support, and form correctly detailed supported openings between rooms. Where a new-build apartment near Canary Wharf has a concrete or steel frame, alterations are more constrained, so we work strictly to the engineer's drawings and never weaken a primary structural member.
Structural alterations inside a Wapping flat are governed by the Building Regulations rather than planning permission, and Tower Hamlets Council's building control inspects the work. Only exterior changes on a listed dock building or within a conservation area would need separate planning or listed-building consent, and we will tell you clearly if your address falls into that category before anything begins.
Because you hold a lease, we also arrange the freeholder's licence to alter and coordinate with the managing agent, whose building-management rules on riverside blocks may govern noise, access and sound insulation between flats. Underpinning is rare in these buildings but where movement is found we design and supervise it properly. We manage the engineer, the consents and the inspections from start to finish.
Homeowners across Wapping trust GS Renovation because structural alterations in a leasehold riverside flat demand more than good bricklaying. One team delivers the engineer's design, the freeholder's licence to alter, managing-agent coordination and Tower Hamlets building control sign-off, with correctly propped, certified work and tidy site management, all underpinned by 30+ years of experience.
Punctual, worked hard, and did exactly what he was asked and what he said he would do. Overall, a very high quality job. Will use again.
Built a new extension at rear of property. Laid foundations, drainage, raised floor, new roof and completed all fixtures and interior decoration…
Giorgio is an excellent and intelligent workman, and with very reasonable prices! He installed a kitchen extractor fan in a complicated situation…
FAQ
We are generally competitive and always more transparent. Every structural alterations line for a Wapping home is visible, including the engineer's fee where the design needs one and the Tower Hamlets Council building control element. National pricing tends to be a rate per square metre applied to an E1 address nobody has visited. GS Renovation surveys first, which is what makes a figure hold. That survey is free at any E1 address, in Wapping and anywhere across Tower Hamlets. 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.
Heavy timber, cast iron columns and thick brick walls, in varying combinations. Warehouse buildings around Wapping were built for industrial loads, so floors are often deep timber on iron columns rather than domestic joists. That structure is capable but idiosyncratic, and it was not designed for the openings people now want. The engineer assesses what is actually there before any alteration is designed.
Often, and the fire requirements come with it. Exposed timber and iron are part of why Wapping conversions are valued, but where an element is structural its performance in a fire has to be demonstrated. Heavy timber behaves differently from bare iron, which loses strength quickly. The approach is agreed with building control rather than assumed from what the neighbours have done.
The freeholder or management company under the lease, alongside the council. Conversions around Wapping are leasehold and the building's structure is retained by the landlord, so a licence to alter is required in addition to building control approval. Where the building is protected, consent for changes affecting its character is a separate matter again. All three routes are established before design work starts.
Through a route agreed with the building's management before the work is programmed. Wapping conversions frequently have a single lift, restricted loading and narrow riverside access, and upper floor flats can be a long way from the street. Steel is specified in sections that will fit the lift where necessary, deliveries are booked into permitted hours, and common parts are protected throughout.
By the lift where one exists and it is rated for the load, otherwise by stair in manageable sections. In your Wapping conversion the lift is often the only practical route to an upper floor, so its capacity and internal dimensions are checked before anything is ordered. The car and the common parts are protected, and the times heavy loads may move are agreed with the building's management.
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 Wapping. Explore what else we do locally:
Same Service, Nearby Areas
We carry out structural alterations across Wapping and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for structural alterations in Wapping. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.