Steel beam installation, rsj and structural alterations in Soho. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and structural steel across Soho and the wider W1 postcode, working in the bay-fronted Victorian and Edwardian terraces that define the area. With over 30 years removing load-bearing walls in Westminster homes, we size, prop and set every beam correctly, from ground-floor knock-throughs to loft openings.

Most steel work in Soho's terraces involves opening up the ground floor, taking out the wall between the front reception and the rear closet wing to create one bright, connected space. Our structural engineer calculates the beam size and the padstones it bears onto, then we install temporary props, carry out safe staged demolition and lift the RSJ into position. Every stage is inspected and signed off by Westminster building control.
Because dividing walls and chimney stacks in these W1 terraces usually sit within a shared party wall, the work often triggers the Party Wall Act. We flag this early, so you can serve the correct notices on neighbours before demolition begins. Many Soho homes are also upper-floor apartments or run over several storeys, which means propping and access have to be planned carefully around occupied rooms and narrow period staircases.
Steel is not just for ground-floor rooms. In Soho we install beams for loft conversions, rear extension openings and chimney breast removals, where taking out the breast on one floor leaves the stack above needing support with a gallows bracket or beam. Each situation is different, so nothing goes in without engineer's calculations. We match the steel to the exact load, whether that is a single lintel or a heavy multi-span beam.
Once the beam is set on its padstones and the props come out, we make good the surrounding structure, fireproof the steel to regulations and hand you the building control completion certificate you will need when you sell. Working in central W1, we keep dust down, protect original cornicing and floors, and coordinate deliveries around the tight streets and parking restrictions that come with Westminster addresses so the job runs smoothly.
Homeowners in Soho choose GS Renovation because steel is our core work, not a sideline. One team manages the engineer, the props, the demolition, the party wall notices and the building control sign-off, so nothing falls between trades. With over 30 years in W1 and the surrounding Westminster streets, we install beams safely in occupied, characterful period homes.
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
The cost of RSJ and steel beam installation in Soho depends on the size of the property, the specification and the scope of work. GS Renovation provides free, detailed and itemised quotations for every Soho project. Call 07472 424 226 or email info@gsrenovationltd.co.uk for a no-obligation estimate. 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 Soho 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.
GS Renovation's team brings over 30 years of hands-on experience to RSJ and steel beam installation and wider building work across Soho and the surrounding area. We offer free quotes, a dedicated project manager, full insurance, building control compliance where required, and comprehensive aftercare.
Removing a load-bearing wall in Soho 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 Soho's homes are Victorian and Edwardian terraced properties, and we renovate them regularly. We plan each RSJ and steel beam installation around their particular characteristics, such as solid brick walls, rear closet wings, side returns and original period features, so the result suits the building and meets building control.
Yes. Removing a load-bearing wall is structural work, so it needs building regulations approval and building control sign-off, not planning permission. You will need a structural engineer to size the steel beam. If the wall is shared with a neighbour, which is common in Soho terraces, the Party Wall Act also applies and notices must be served first.
Absolutely. Our team works right across Soho and the W1 area and neighbouring parts of Central 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 Soho. 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 Soho 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 Soho.
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