Steel beam installation, rsj and structural alterations in Merton. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Merton, from the bay-fronted Victorian terraces of Wimbledon to the Edwardian homes around Mitcham and Morden. With over 30 years of structural work in SW19, SW20, CR4 and SM4, we remove load-bearing walls safely and leave the borough's period houses stronger than we found them.

Most Merton homes are solid-wall Victorian and Edwardian terraces, so the wall between the front and rear reception, or into the closet wing, almost always carries load from above. Before anything comes down, a structural engineer sizes the RSJ and specifies the padstones it bears onto. We install temporary propping, take the wall out in safe staged sections, then seat the beam and transfer the load cleanly.
The chimney breast that so many SW19 and SW20 houses still have adds weight that the new steel must carry, and the closet wing at the rear often needs its own beam. We calculate bearings for each opening, pack the padstones properly and make good so the finished ceiling line runs level, ready for plastering.
The dividing wall between you and next door in a Mitcham or Morden terrace is usually a shared party wall, so cutting a beam bearing into it brings the Party Wall Act into play. We help you serve the correct notices on adjoining owners in good time and coordinate the surveyor process, so the steelwork goes in without disputes with neighbours.
Steel beam installation is controlled under building regulations rather than planning permission. We arrange building control inspection with Merton Council or an approved inspector, provide the engineer's calculations, and book the checks at propping, beam seating and completion stages. You receive the sign-off certificate that protects the house and any future sale.
Merton homeowners choose GS Renovation because we treat structural work as the serious job it is. One team handles the engineer's design, the propping, the steel, the party wall notices and the building control sign-off, with 30+ years of load-bearing wall removals across SW19, SW20, CR4 and SM4 behind every beam we fit.
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
Every Merton project is priced on its own merits, as the cost of RSJ and steel beam installation varies with the size, specification and condition of the home. We give a clear, itemised quote up front with no obligation. Call 07472 424 226 for an estimate tailored to your 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.
Timescales for RSJ and steel beam installation in Merton vary with the size and complexity of the job. After our survey we give you a realistic schedule and keep you updated at every stage of the project.
GS Renovation knows Merton's homes and how to renovate them properly. We handle the structure, the services and the finishes, deal with building control for you, and leave you with work that is certified, guaranteed and built to last.
Removing a load-bearing wall in Merton 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 Merton'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.
Usually yes. In most Wimbledon terraces the beam bears onto the shared party wall with your neighbour, which triggers the Party Wall Act. You must serve written notice on the adjoining owner before work starts. We guide you through the notices and timing, and coordinate the steelwork so the installation stays on schedule and neighbourly.
Absolutely. Our team works right across Merton and the SW19 area and neighbouring parts of South West 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 Merton. 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 Merton 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 Merton.
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