Steel beam installation, RSJ and structural alterations in Woodford. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Woodford, where the IG8 streets are lined with 1930s semi-detached and interwar suburban houses on generous plots. With more than 30 years of structural experience, we remove load-bearing walls and open up these solid interwar homes safely, from first survey to building control sign-off.

The typical Woodford job opens the wall between the front and rear reception rooms of a 1930s semi, or takes out the wall to the original kitchen to form one bigger space. These interwar houses were built with solid brickwork and a central spine wall that carries the floor joists and, often, a chimney stack above, so the wall is almost always load-bearing rather than a simple partition.
We start with a structural engineer sizing the RSJ for the actual span and the load it will carry, then set the beam onto concrete padstones bearing into sound masonry. Nothing comes down until the temporary props are in and checked, and the demolition is staged so the floor above stays fully supported throughout the works.
Because so much of Woodford's IG8 stock is semi-detached, the wall you want to alter, or the chimney breast beside it, frequently sits on or against the shared party wall with next door. Where a beam bears into that wall, or where you cut into a party structure, the Party Wall etc. Act 1996 applies and your neighbour must be served the correct notice before work begins.
We flag this at the survey stage so there are no surprises. We prepare the drawings and the engineer's calculations that a party wall surveyor needs, coordinate the notice period, and time the steelwork around it. Building control inspects the beam, the bearings and the padstones before the opening is closed up, and issues the completion certificate for your records.
Nearly everything that matters about a steel beam ends up hidden. Once the encasement is on and the plaster is finished, nobody can see the padstone, the bearing length, the packing above the beam or the bolts in a spliced connection. That is fine while the building control inspection has covered it, but the inspection produces a certificate rather than a picture of what is behind your wall. A completion certificate confirms the work was inspected, but it does not describe what the inspector saw.
So we photograph it. Bearings, padstones, connections and propping are recorded before they are covered, dated and handed over with the engineer's details and the completion certificate at the end of the job. It costs nothing at the time. It is worth a great deal when a surveyor queries the opening during a sale years later, or when a future project in the same IG8 house needs to know what is already carrying the floor.
Woodford homeowners choose GS Renovation because we treat steel installation as a structural job, not a quick knock-through. One team handles the engineer's design, the propping, the party wall paperwork common to these semis and the building control sign-off. Backed by 30+ years across Redbridge, we leave your interwar home stronger, tidier and properly certificated.
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…
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
My husband and I are extremely pleased with the work. The standard of the work is outstanding and Saiid has a great eye for detail and will not leave…
FAQ
Labour is the biggest line on almost every Woodford project. Materials for RSJ and steel beam installation are relatively predictable, but the days on site at IG8 depend on access, condition and how many trades must follow each other. GS Renovation sequences them to avoid idle time, which is the practical way to control the cost. The Redbridge quotation shows where the hours go. Ring 07472 424 226 and GS Renovation will describe the sequence planned for your IG8 home. 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.
Whatever the engineer calculates for the span and the load, which is usually a substantial section. Opening the whole rear of your Woodford house removes masonry supporting the floor and often the roof above, so the beam grows with the width. Deflection is limited so the glazing below is not stressed. Nobody should quote a section size for that opening before the calculations exist.
Only where there is not enough masonry left to take the bearing. In your Woodford house with a return wall at each side of the opening, the beam can often bear onto padstones in that masonry. Where the opening runs the full width, posts carry the load down to new foundations instead. The engineer decides from what remains, not from what would be easier to build.
It can, and the detailing decides how much. A large glazed opening in a Woodford rear elevation replaces insulated wall with glass, and the steel above it conducts heat readily unless the insulation line is carried past it. Cold bridging at the beam shows up as condensation along the ceiling junction. The insulation detail around the steel is designed with the opening rather than added afterwards.
It is checked for what it was relying on. In a Woodford house the wall being removed may support a partition, a floor or part of the roof structure upstairs, and any of those change how the room above behaves. Fine cracking at ceiling junctions is normal as load transfers. Anything more is investigated rather than filled, because the beam should be taking that load, not the plaster.
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 Woodford. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Woodford and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Woodford. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.