Steel beam installation, RSJ and structural alterations in Pimlico. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and structural steel beams throughout Pimlico, where white-stucco Regency terraces and garden squares define the SW1 streets. With over 30 years of experience in period, Georgian and listed homes, we remove load-bearing walls safely, size every beam through a structural engineer and see the work signed off by building control.

Pimlico's Georgian and Regency townhouses were built with solid masonry walls, so almost every internal wall you might want to remove is carrying load from the floors and the storeys above. Before any demolition, our structural engineer calculates the beam and the padstones it will bear onto, and we set up temporary propping so the structure stays supported at every stage. Only then do we take the wall out in a controlled, staged sequence.
Working in tall SW1 terraces means managing dust, access and neighbours in streets of closely packed period homes. We protect original cornicing, staircases and floors, cut openings cleanly and build in the RSJ level and true. Building control inspects the padstone bearings and the finished beam, and we handle that sign-off for you so the removal is fully certified rather than left undocumented.
Because Pimlico terraces sit wall to wall, the chimney breast or dividing wall you want opened up frequently forms part of a shared party wall with the house next door. The Party Wall etc. Act applies here, which means notice must be served on the adjoining owner before beams bear into or cut into that shared masonry. We flag this early so the legal steps run alongside the structural design rather than holding the job up.
Many Pimlico homes also fall within Westminster conservation areas, and a number are listed, so we keep structural changes internal and reversible where the property demands it. We coordinate with your engineer, prepare the drawings building control needs and, where a party wall surveyor is involved, work to the agreed schedule of condition. The result is a clean structural opening delivered without disputes over the shared wall.
Pimlico homeowners choose GS Renovation because steel work in a period SW1 terrace is unforgiving of shortcuts. One accountable team handles the engineer's calculations, temporary propping, staged demolition and building control sign-off, protecting original features throughout. With 30+ years across Westminster's Georgian and listed stock, we deliver a certified, load-bearing opening you can build on with confidence.
The kitchen has been fitted to the high standard. Saaid was polite, professional, tidy, he pays attention to a little details that make huge…
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…
Punctual, worked hard, and did exactly what he was asked and what he said he would do. Overall, a very high quality job. Will use again.
FAQ
No, because everything foreseeable is on the quotation already. RSJ and steel beam installation in period, Georgian and listed housing around SW1 occasionally reveals something behind plaster, and when it does we stop, cost it, and get your agreement before continuing at the Pimlico property. GS Renovation carries the same approach across Westminster. Quotes are free and carry no obligation, whether the SW1 property sits in Pimlico or the wider Central London, and the written figure follows within days. 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.
Through walls that line up from roof to foundation, which is why work at one level affects the others. In your Pimlico terrace the flank and spine walls carry every storey above, so an opening at ground or lower ground level has to support all of it. The engineer traces that route to the base before sizing anything, including any earlier opening lower in the same wall.
Down the front steps and through the house, or in through a light well where one exists. Access to the lower floors of your Pimlico property is usually restricted, so the engineer is asked at design stage for sections that can make the route. Where the beam must come through the main entrance, the hall, stair and any decorative finishes are protected before delivery.
It shows it more clearly than brickwork does. The stucco fronted terraces around Pimlico are finished in render that cracks visibly where any movement occurs, so the temporary works and the sequence of removal matter as much as the beam. Loads are taken on props to the engineer's design before masonry is cut, and the beam is packed up tight so the structure settles evenly onto it.
The freeholder's licence as well as building control approval. Most homes in Pimlico terraces are flats held on long leases, and structural alteration is reserved to the landlord in almost every case. The landlord's surveyor generally reviews the engineer's calculations before consent is issued. Starting the work before that licence exists puts the lease itself at risk, whatever the structural design says.
A visit with access to the room, the floor above and anything below the proposed bearings. At a Pimlico house that frequently means the lower ground floor or a vault as well, and permission to open a small area of plaster at each end of the intended opening. A quotation produced without that access is an estimate, and it is described as one.
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 Pimlico. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Pimlico and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Pimlico. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.