Steel beam installation, RSJ and structural alterations in Fulham. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs steel beams and RSJs across Fulham, from the bay-fronted terraces near Bishops Park to the Edwardian streets around Fulham Broadway. With over 30 years of structural work in SW6, we open up load-bearing walls in these period homes safely, with engineered steelwork and building control sign-off from start to finish.

The typical Fulham job removes the wall between the front and rear reception rooms of a bay-fronted Victorian or Edwardian terrace, or the kitchen wall into the rear closet wing. These are almost always load-bearing, carrying floor joists and the weight above, so a structural engineer calculates the beam and we install an RSJ bearing onto concrete padstones at each end.
Before any masonry comes down we set up temporary propping to hold the structure, then work through a safe, staged demolition rather than pulling the wall out in one go. The steel is levelled, seated on its padstones and packed tight so the load transfers cleanly. Building control inspects the padstone bearings and the finished beam before we close everything up.
Fulham terraces sit in tight rows, and the dividing wall between you and next door, along with the chimney stacks, usually sits in a shared party wall. When your steel bears into that wall, the Party Wall Act applies, so you serve the correct notices on your neighbours in good time and coordinate with any surveyor appointed under the process.
Getting the party wall matters right protects both you and your neighbour, and it keeps the project moving without disputes halfway through. We plan the notice timing around the build programme so steelwork is not held up. Throughout the job we keep the shared wall stable with propping and careful sequencing, and we clean up thoroughly given how close SW6 neighbours live to the works.
People say RSJ for any steel, but the engineer chooses from a range and each behaves differently. A universal beam is the usual answer for a wide opening, deep in proportion to its width and efficient at carrying floor load across a span. A universal column section is squatter and gets used where head height is tight or where a post is needed. The old rolled steel joist with its tapered flanges is now rare in new work.
A flitch beam, a steel plate bolted between two timbers, suits a modest load where the beam has to be carried in by hand, which happens often in Fulham terraces with no rear access. Over a small opening a concrete or steel lintel may be all that is required. The size and the type come from the calculation rather than the shape of the hole, and we build to whatever the engineer issues.
Fulham homeowners choose GS Renovation because we treat steelwork as engineering, not guesswork. Every beam is sized by a structural engineer, propped safely, seated on proper padstones and signed off by Hammersmith and Fulham building control. With 30+ years in SW6 terraces, we coordinate the work around the party wall award, the demolition and the making good as one accountable team.
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
Giorgio is an excellent and intelligent workman, and with very reasonable prices! He installed a kitchen extractor fan in a complicated situation…
FAQ
There is no charge, and no pressure afterwards. GS Renovation surveys the SW6 property, checks what RSJ and steel beam installation would actually require there, and issues an itemised figure for your Fulham home. Quotes are free and no-obligation, which is the only fair way to price work of this kind. Call 07472 424 226 or email info@gsrenovationltd.co.uk to arrange a visit. Nothing at all is owed for the SW6 survey or for the written Hammersmith and Fulham quotation. 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.
It is assessed before anything is added to it or beside it. Openings formed in Fulham houses over the past few decades often contain steel, and whether it was designed for what it now carries is unknown until it is exposed and measured. The engineer checks the section, the bearings and the padstones against the actual loads. Where it falls short, it is replaced rather than supplemented.
As two structures meeting, because that is what it is. In your Fulham terrace the rear addition has its own roof, floor and often shallower foundations, and the wall joining it to the main house may carry both. A beam at that junction is designed for the combination. Where a side return infill is also planned, the whole arrangement is designed once rather than in stages.
By recording and covering them before anything is cut. Your Fulham house frequently retains cornices, ceiling roses, joinery and fireplaces close to where an opening is being formed, and vibration and debris damage them readily. Items within the work area are protected in place or carefully removed and stored. Anything that has to be cut is stopped at a deliberate line and made good to match.
Wherever the extension is a realistic prospect, yes. A side return infill at a Fulham property changes what the rear and flank walls carry and where load arrives, so a beam sized only for the present layout may need replacing when the extension follows. Allowing for it now is usually a modest change to the section and avoids opening a finished room a second time.
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 Fulham. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Fulham and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Fulham. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.