Steel beam installation, rsj and structural alterations in Bexley. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Bexley, from the 1930s semi-detached houses of Bexleyheath and Welling to the interwar family homes around Sidcup. With more than 30 years of structural experience across DA5, DA6, DA7 and DA15, we open up load-bearing walls safely, with engineer-sized steel and full building control sign-off.

The dividing wall between the front and back reception rooms in a Bexley 1930s semi is almost always load-bearing, carrying the floor joists and often a chimney breast above. To remove it we bring in a structural engineer to size the RSJ, set temporary props to take the load, then carry out staged demolition. The new beam bears onto concrete padstones at each end, spreading the weight safely down through the existing brickwork.
Because so many houses across DA6 and DA7 are semi-detached, one end of the beam frequently lands in the party wall shared with next door. That triggers the Party Wall Act, so we help you serve the correct notices on your neighbour before any cutting begins. Bexley Council building control inspects the steelwork and its bearings, and we arrange the completion certificate you will need when you eventually sell the house.
A popular project in Welling and Bexleyheath is joining the two separate reception rooms into a single through-lounge. The party wall between the semi and its neighbour stays put, but the internal spine wall comes out and a steel beam takes its place. We calculate the propping, protect the rest of the house from dust, and thread the beam in without disturbing the floors above or the roof structure over the room.
Larger interwar houses on the generous plots around Danson Park sometimes need a pair of beams, or a goalpost frame where two directions of load meet. Whatever the arrangement, the engineer's calculations set the steel size, the padstone dimensions and the connection details. We handle delivery of heavy sections into tight suburban driveways, the make-good plastering afterwards, and the building control inspection at every critical stage of the job.
Bexley homeowners choose GS Renovation because we treat structural work as the serious job it is. One team manages the engineer, the propping, the steel and the building control inspections, so nothing falls between trades. With 30+ years opening up walls in interwar semis across the borough, we keep your home safe, tidy and properly certificated from first prop to final sign-off.
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
There is no fixed price for RSJ and steel beam installation in Bexley, because so much depends on your property and what you want to achieve. We survey first, then provide a transparent written quotation. Contact GS Renovation on 07472 424 226 for a free 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 Bexley 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.
Because we manage every trade in-house, your Bexley project stays consistent and accountable from first fix to finish. Add transparent pricing, full insurance and real aftercare, and it is easy to see why Bexley clients recommend us.
Removing a load-bearing wall in Bexley 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 Bexley'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. Most houses in DA6, DA7 and DA15 are semi-detached or terraced, so the wall carrying one end of the beam is shared with your neighbour. Under the Party Wall Act you must serve written notice before cutting into that wall or bearing steel onto it. We guide you through the notices and timing, and coordinate the work so the structural side stays fully compliant.
We do. GS Renovation covers all of Bexley and the DA1 area and the wider South East London. Call 07472 424 226 and we will confirm we work on your road.
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 Bexley. 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 Bexley 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 Bexley.
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