Steel beam installation, RSJ and structural alterations in Wallington. Trusted, professional, 30+ years' hands-on experience.
GS Renovation has spent more than 30 years removing walls and installing steel across Wallington's SM6 streets. The bay-fronted Victorian and Edwardian terraces here, with their rear closet wings and side returns, were built with load-bearing internal walls, so opening them up safely means a properly sized RSJ, not guesswork.

Every beam we install begins with a structural engineer's calculations, which size the RSJ to the load it will carry and specify the padstones it bears onto at each end. On a typical Wallington terrace we set up temporary propping first, then work through a staged, controlled demolition so the wall never comes down before the new steel is safely in place and packed tight to the underside of the floor above.
Because the terraces along Wallington's SM6 roads share party walls, and because chimney stacks frequently sit within that shared masonry, removing a wall often triggers a notice under the Party Wall Act to your neighbour. We handle that process alongside the building control application, so the structural work is inspected and signed off correctly. Cutting a beam into a party wall demands care, and our thirty years locally means we know how these houses are built.
The most common request we get in Wallington is to knock the two reception rooms into one, joining the bay-fronted front room to the middle room where the chimney breast and dividing wall stand. That wall almost always carries load from the floor and roof above, so it cannot simply be taken out. A steel beam, sized by an engineer and supported on padstones, replaces the wall and keeps the structure sound.
We also open up rear closet wings and remove kitchen walls to create through-lounges and kitchen-diners. Whatever the layout, we prop the structure temporarily, protect the rest of the house from dust and debris, and take the wall down in stages. Building control inspects the beam and its bearings before we plaster over, so you have documented sign-off that the work meets the regulations. Most single-beam jobs run to one or two weeks.
Wallington homeowners choose GS Renovation because we manage the whole job, from the engineer's drawings to the propping, the steel and the building control sign-off. There is no juggling separate trades. With more than 30 years across SM6 and the neighbouring Sutton and Carshalton streets, we know these terraces and remove their walls cleanly and safely.
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FAQ
Usually the structural work and the making good, in that order. Steel, propping and the engineer's design account for the largest share of an RSJ and steel beam installation job at an SM6 address, and reinstating a bay-fronted Victorian terraced interior afterwards accounts for more than most people expect. The Sutton Council fee is small by comparison. GS Renovation shows all three separately on the Wallington quotation. Ring 07472 424 226 and we will explain the balance at an SM6 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.
It depends on scope, and we will not pretend otherwise on the phone. Once the SM6 survey is done GS Renovation can give a Wallington homeowner real dates for RSJ and steel beam installation, including the Sutton Council inspection points. Material lead times are ordered against that programme early. Ring 07472 424 226 and we will describe what a bay-fronted Victorian terraced property usually needs. Nothing about the Wallington dates is guessed once the free survey at SM6 is done.
Because you get one accountable team rather than a chain of subcontractors. GS Renovation is the contractor carrying out RSJ and steel beam installation at your SM6 property, with a named project manager from survey to handover and full insurance throughout. We are rated 4.9 from 31 reviews on MyBuilder, and the Sutton Council paperwork is handled for you. That applies across Wallington and the wider Sutton. Ring 07472 424 226 and ask for SM6 references. Insurance details follow on info@gsrenovationltd.co.uk request.
Yes, on any load-bearing opening. The floor and walls above are carried on adjustable props while the masonry comes out and the steel goes in. Getting the propping right at your SM6 property is the part that protects the rest of the Wallington house.
Yes, mainly in the preparation and the making good rather than the structural work itself. RSJ and steel beam installation at an SM6 property of that age means confirming the load path before design, then reinstating plaster, floors and joinery to match. GS Renovation programmes both into the Wallington job. The structural stage is broadly comparable to a modern Sutton house. Ask on 07472 424 226 what RSJ and steel beam installation means in practice at an SM6 address of that age.
Very possibly. Most Wallington terraces in SM6 share a party wall with the house next door, and if your steel beam will bear into that shared wall or you are working close to it, the Party Wall Act requires you to serve notice on your neighbour. We prepare and manage this alongside the building control application, so the whole process is handled correctly from the start.
The simplest answer is to give us the postcode. GS Renovation covers Wallington and the surrounding Sutton for RSJ and steel beam installation, and we will say straight away whether your address is in or out. There is no charge for asking or for the survey at SM6. Call 07472 424 226 and you will know today. We will suggest someone else if we are not right. The SM6 survey is free and the Sutton quotation follows in writing.
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 Wallington. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Wallington and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Wallington. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.