Steel beam installation, RSJ and structural alterations in Addiscombe. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Addiscombe, where CR0 is dominated by bay-fronted Victorian and Edwardian terraces with rear closet wings and side returns. With more than 30 years of structural work in Croydon, we remove load-bearing walls safely, from the ground floor of a two-up two-down to a full through-lounge.

The wall between the two reception rooms in an Addiscombe terrace is almost always load-bearing, carrying the floor joists above and, in many cases, a chimney breast and stack. Before anything is touched, we have a structural engineer calculate the load and specify the correct steel, whether that is a single RSJ or a pair of beams bolted together for a wider opening across a bay-fronted front room.
On site we install temporary propping to take the weight, then carry out staged demolition so nothing is left unsupported. The beam bears onto concrete or engineered padstones at each end, spreading the load into the solid brickwork. Building control inspects the padstones and the finished steel, and we keep the property watertight and clean while an Addiscombe family stays living upstairs.
Because Addiscombe's terraces share a party wall with the house next door, any beam that bears into that dividing wall brings the Party Wall Act into play. We flag this early, help you serve the correct notice on your neighbour and coordinate with their surveyor if one is appointed, so the steelwork proceeds without a dispute holding up the job.
Chimney breast removal is a common companion to this work in CR0. Where a homeowner wants to reclaim the space in a closet wing or bedroom, the stack above has to be supported on a gallows bracket or a beam rather than left hanging. We size that support with the engineer, get it signed off by Croydon's building control channel and make good the shared wall properly.
A beam for an Addiscombe terrace is often four metres or more of solid steel, and there is no side access to bring it in. It comes through the front door, along the hall and into the room by hand, so we measure the turn at the foot of the stairs before the steel is ordered. Where the length or the weight makes that impossible, the engineer can specify two lighter sections bolted together on site to act as one beam.
Delivery needs a space on the street, and the roads around Ashburton Park are largely permit controlled, so we arrange a bay suspension or a timed drop rather than blocking your neighbours in. Everything that goes with the beam, the padstones, the props and the spreader plates, arrives before demolition day so the wall is never opened up while we wait on materials. Planning the delivery properly is what keeps a terrace job to a week.
Addiscombe homeowners choose GS Renovation because we treat steelwork as structural engineering, not guesswork. Every beam is sized by an engineer, propped safely, seated on proper padstones and signed off by building control, with party wall notices handled where the shared wall is affected. Thirty years across Croydon means we know how these terraces are built.
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
The kitchen has been fitted to the high standard. Saaid was polite, professional, tidy, he pays attention to a little details that make huge…
George is a very hard working builder, and has done a fantastic job on replacing my Bathroom. His attention to detail was great and I wouldn't…
FAQ
Enough for the scoped work plus a sensible allowance for the unseen. GS Renovation prices what the CR0 survey shows, names anything that could change once RSJ and steel beam installation opens up a bay-fronted Victorian terraced structure, and leaves the decision with you. The Croydon Council fee belongs in the same budget. Nothing is added to an Addiscombe project without written agreement. Ring 07472 424 226 and we will explain the likely contingency for a CR0 property in Addiscombe. 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.
No, and it is a common assumption worth correcting. A hatch cut into your Addiscombe wall will have a lintel over it, and the masonry each side is still carrying the floor above. The hatch proves only that somebody once formed a small opening with support. Widening it into a full opening changes the span completely, and you need a beam designed for the whole load.
Scale and what they carry. A lintel spans a door or window opening in an Addiscombe house and supports the masonry immediately above it. A beam replacing a whole wall carries floor loads, sometimes roof loads and any partition standing on it, across a much longer span. Fitting a lintel where a beam is required is one of the more dangerous shortcuts in domestic building work.
It is worth asking the engineer at design stage. Converting an Addiscombe loft later adds load that passes down through the structure, including onto any beam installed now. Designing for that at the outset usually costs little more in steel, whereas discovering it afterwards can mean replacing a beam that is already plastered in. The decision only has to be made before the calculations are issued.
Either boxed flush into the ceiling line or expressed as a clean downstand. In your Addiscombe room that choice affects the plastering, the lighting layout and how the opening reads from each side. A boxed beam with square returns looks intentional, whereas one wrapped roughly in board draws the eye. We agree the finish with you before the plasterer arrives rather than improvising it.
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 Addiscombe. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Addiscombe and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Addiscombe. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.