Steel beam installation, rsj and structural alterations in Southwark. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Southwark, from the Victorian terraces of Peckham and Camberwell to the Georgian townhouses of Dulwich and the warehouse conversions of Bermondsey. With more than 30 years of structural experience in SE1, SE5, SE15, SE16, SE17, SE21 and SE22, we remove load-bearing walls safely and sign the work off with building control.

Most steel beam jobs in Southwark involve opening up the ground floor of a Victorian or Georgian terrace in SE5 or SE15, where the wall between the front and rear reception rooms carries the floors and often a chimney stack above. Our structural engineer sizes the beam to the actual loads, we prop the structure temporarily, then carry out staged demolition so nothing is left unsupported. The beam bears onto padstones calculated for the masonry.
Because Southwark terraces share dividing walls and chimney breasts with the house next door, most of these projects fall under the Party Wall Act. We help you serve the correct notices on adjoining owners in good time, whether you are in a Peckham terrace or a Dulwich townhouse near Dulwich Park. Everything is inspected and signed off by building control, so when you come to sell, the paperwork on the structural alteration is complete and correct.
Steel work in Southwark is not limited to houses. In the warehouse conversions around Bermondsey and Borough, and in mansion flats across SE1 and SE16, structural change is possible but tightly controlled. Many of these are leasehold, so before any beam goes in you usually need the freeholder's licence to alter and coordination with the managing agent. We work within building-management rules and the sound insulation standards that apply between flats.
For houses, the process is more straightforward but no less careful. We handle knock-throughs between kitchens and rear rooms, chimney breast removals that need a beam or gallows bracket, and full-width openings for rear extensions. On the older Georgian and listed stock in Dulwich and Camberwell, we take extra care with lime mortar, original joists and lath and plaster, keeping the character of the property intact while the new steel does the structural job quietly behind the finishes.
Southwark homeowners choose GS Renovation because we combine engineer-led steel design with 30+ years of hands-on structural work across SE1 to SE22. We manage the propping, the padstones, the party wall notices and the building control sign-off as one accountable job, working cleanly in occupied period homes and staying within the leasehold rules that govern the borough's conversions.
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great attention to detail. I've already recommended him to others.
Splendid job on our new kitchen refurb, including new flooring, moving the services, installing RSJ and preparing space for new back doors… George was always friendly, communicative and has an excellent attention to detail, ensuring everything is finished to a high standard.
Giorgio is an excellent and intelligent workman, and with very reasonable prices!… He paid a lot of attention to detail that is not common at all, and the final result was immaculate. Highly recommended!
FAQ
Every Southwark project is priced on its own merits, as the cost of RSJ and steel beam installation varies with the size, specification and condition of the home. We give a clear, itemised quote up front with no obligation. Call 07472 424 226 for an estimate tailored to your property. 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.
A straightforward Southwark project can be done in a couple of weeks, while a larger RSJ and steel beam installation with structural work runs longer. We set out a realistic, stage-by-stage programme before we begin so there are no surprises.
Because we manage every trade in-house, your Southwark project stays consistent and accountable from first fix to finish. Add transparent pricing, full insurance and real aftercare, and it is easy to see why Southwark clients recommend us.
Removing a load-bearing wall in Southwark does not normally need planning permission, but it always needs building regulations approval, a structural engineer's calculations and building control sign-off. Where the wall is shared with a neighbour, the Party Wall Act may also apply. We manage all of it.
Yes. A large share of Southwark's homes are period, Georgian and listed properties, and we renovate them regularly. We plan each RSJ and steel beam installation around their particular characteristics, such as conservation and listed-building rules, solid walls and original period features, so the result suits the building and meets building control.
Very likely yes. In a Camberwell terrace the wall you are opening, or the chimney breast above it, usually sits within the shared party wall, so the Party Wall Act applies. You must serve notice on your neighbours before work starts. We size the beam with a structural engineer, help arrange the notices, and get everything signed off by building control.
Absolutely. Our team works right across Southwark and the SE1 area and neighbouring parts of South London. Get in touch on 07472 424 226 to check coverage for your address.
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 Southwark. Explore what else we do locally:
Safe load-bearing wall removal with steel beam support.
Structural alterations, new openings and steel support.
Chimney breast removal with gallows bracket or beam support.
Open-plan kitchen, diner and living conversions.
Single and double storey extensions.
Full refurbishments and whole-house renovations.
Bespoke kitchen design and installation.
Luxury bathroom and wet-room refurbishment.
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Southwark and the surrounding areas. Explore a nearby location:
Contact GS Renovation today for a free, no-obligation quote for RSJ and steel beam installation in Southwark.
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