Steel beam installation, rsj and structural alterations in Welling. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Welling, where the DA16 streets are lined with 1930s semi-detached and interwar suburban houses on generous plots. With over 30 years of structural experience in Bexley, we remove load-bearing walls safely, from the classic through lounge to open-plan rear layouts, all engineered and signed off correctly.

The wall between the front and back reception rooms in a Welling 1930s semi is almost always load-bearing, carrying the floor joists above and often a chimney breast. Before any demolition, a structural engineer sizes the beam for the span and the loads it must pick up, and we work to those calculations rather than guesswork. Getting the specification right is what keeps the floors and ceilings above sitting solidly for the decades that follow.
On site we install temporary propping to take the load, then carry out staged demolition so nothing is removed before the new steel is ready to bear. The RSJ lands on padstones spread across the masonry to distribute the weight, and we pack and pin the beam tightly to the structure above. Every stage is planned so the interwar house stays stable throughout, with no surprises once the props come out.
Many Welling steel jobs sit close to the party wall shared with the neighbouring semi, and where a beam bears into that shared wall the Party Wall Act applies. We help you serve the correct notices on the adjoining owner in good time, which keeps the project lawful and the relationship with the neighbour on the interwar terrace next door amicable. This paperwork matters as much as the steel itself on a semi-detached plot.
All beam installations are notifiable work that needs building control, not planning permission, so we submit the engineer's calculations to Bexley Council or an approved inspector for sign-off. The inspector checks the padstones, the bearings and the fire protection to the steel before the completion certificate is issued. That certificate is the document your solicitor and any future buyer in DA16 will want to see, so we make sure it is in place.
Welling homeowners choose GS Renovation because we treat steelwork as a structural discipline, not a quick knock-through. We coordinate the engineer, the propping, the party wall notices and the Bexley Council sign-off as one accountable service. With 30+ years in DA16 and the surrounding interwar suburbs, we leave you with a safe opening and the certificate to prove it.
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
We price each Welling project individually, because the cost of RSJ and steel beam installation depends on far more than floor area. After a free survey you receive a clear written breakdown with no hidden extras. Call 07472 424 226 or email info@gsrenovationltd.co.uk. 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 Welling 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.
With more than three decades of hands-on trade experience behind us, GS Renovation is a trusted choice for RSJ and steel beam installation in Welling. You get one accountable team, transparent pricing, fully insured tradespeople and genuine aftercare on every project.
Removing a load-bearing wall in Welling 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 Welling's homes are 1930s and interwar properties, and we renovate them regularly. We plan each RSJ and steel beam installation around their particular characteristics, such as cavity walls, regular original layouts and the generous plots that suit extending, so the result suits the building and meets building control.
Usually yes. Welling semis share a party wall with the neighbour, and if the beam bears into or cuts that wall the Party Wall Act applies, so notice must be served on the adjoining owner. Even internal beams within your own walls need building control sign-off. We handle both the notices and the structural calculations for you.
Yes, Welling is one of our core areas. We work on every street and the DA16 area and across the wider South East London, so wherever your home is, call 07472 424 226 and we will confirm we can help.
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 Welling. 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 Welling 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 Welling.
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