Steel beam installation, RSJ and structural alterations in Bermondsey. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs steel beams and RSJs across Bermondsey, from the converted riverside warehouses to the new-build apartments that line SE16. With more than 30 years of structural experience in South London, we open up leasehold flats and the area's few houses safely, sizing every beam to the load it carries.

Bermondsey's warehouse conversions were built as robust industrial shells, so internal walls added during conversion are frequently non-original studwork, yet some carry real load from the floors above. Before any beam goes in, our structural engineer confirms which walls are structural, calculates the load and specifies the correct RSJ. We then arrange temporary propping and remove the wall in safe, staged sections rather than in one go.
The steel bears onto padstones spread across the masonry so the load transfers cleanly into the structure, and building control inspects the propping, the steel and the bearings before sign-off. In a leasehold flat this work also needs the freeholder's licence to alter and coordination with the managing agent, which we help you put in place before we lift a single tool.
New-build riverside apartments near the South Bank often use concrete frames or blockwork rather than simple brick, so removing or altering a wall demands a careful engineer's assessment of exactly what is holding weight. We never assume a partition is non-structural. Where a genuine load-bearing element is involved, we build a steel solution, designed by the engineer, that keeps the floor plate stable and satisfies both building regulations and the building-management rules.
Sound insulation between flats matters enormously in Bermondsey conversions, so when we open a wall we rebuild the acoustic separation the lease requires, not just the structure. Party Wall Act notices apply where a wall is shared with a neighbouring flat, and you serve those notices, agree access and keep Southwark Council building control informed throughout the staged demolition and beam installation.
Bermondsey homeowners choose GS Renovation because we treat leasehold steelwork as a whole process, not just a beam. We handle the engineer's calculations, the freeholder's licence, the managing-agent paperwork and building control sign-off, then prop, demolish and install cleanly. Thirty years across SE16 means we know how these warehouse and new-build structures behave.
Excellent service. George's knowledge and skills are the best in the market. He knows what he is doing, does really high quality work, gives good…
Really great job done in our bathroom to replace the shower head in the bathtub, and install a shower screen and caddy. We are very happy with the…
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
Enough for the scoped work plus a sensible allowance for the unseen. GS Renovation prices what the SE16 survey shows, names anything that could change once RSJ and steel beam installation opens up a converted warehouse and riverside structure, and leaves the decision with you. The Southwark Council fee belongs in the same budget. Nothing is added to a Bermondsey project without written agreement. Ring 07472 424 226 and we will explain the likely contingency for an SE16 property in Bermondsey. As a rough guide, RSJ and steel beam installation in London runs roughly £1,500 to £4,000 for the beam itself on a single straightforward opening, covering supply, installation and building control sign-off; a full knock-through including taking the wall out, the structural engineer's fee and making good more typically comes to £2,500 to £6,500 or more (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.
We will tell you exactly, once we have seen the house. Guessing an RSJ and steel beam installation duration for a Bermondsey property without a survey helps nobody, and the SE16 visit is free. GS Renovation then issues a staged programme including the Southwark Council inspection dates and the drying time that cannot be rushed. That is the version to plan a Southwark household around. Ring 07472 424 226 and we will describe how a similar SE16 job ran in Southwark.
Yes, that is included. GS Renovation submits the Southwark Council building control application for RSJ and steel beam installation at your SE16 property, books and attends the inspections, and sees the completion certificate through. Where the design needs a structural engineer we appoint and coordinate them. A Bermondsey homeowner is left with the party wall notices to serve, and we prepare those. Ring 07472 424 226 and we will explain the Southwark steps. The party wall duty stays with you as Bermondsey building owner.
The bearings and padstones before they are covered, and the beam itself against the engineer's calculations. Southwark Council will want to see the steel in place and correctly supported at your Bermondsey property before it is boxed in, so the inspection has to be booked at the right moment.
They ask more of the preparation, which is where the difference sits. Loft-style conversions with exposed brick, steel and full-height glazing conceal their structure, so RSJ and steel beam installation begins with confirming what is actually carrying load at the SE16 property before anything is removed. GS Renovation appoints an engineer where the design requires one. After that the Bermondsey job runs much like any other. Email info@gsrenovationltd.co.uk and we will explain what RSJ and steel beam installation needs confirmed before any design work begins at SE16.
Often yes, but two checks come first. Our structural engineer confirms whether the wall is load-bearing and sizes any RSJ needed, bearing onto padstones with temporary propping and building control sign-off. Separately, your lease will usually require the freeholder's licence to alter and managing-agent approval, apply where the wall is shared. We coordinate all of it before starting.
The whole borough, and a good way beyond it. GS Renovation carries out RSJ and steel beam installation across Bermondsey, Peckham and much of South London, with no surcharge for distance within Southwark. Knowing the Southwark Council building control process locally is a practical advantage on an SE16 job. Email info@gsrenovationltd.co.uk with the address for a free survey. We will say plainly if a property is too far out. Aftercare is no harder from one end of the borough to the other.
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 Bermondsey. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Bermondsey and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Bermondsey. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.