Steel beam installation, RSJ and structural alterations in Holloway. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Holloway, where bay-fronted Victorian and Edwardian terraces in N7 rely on solid load-bearing walls. With over 30 years of structural work in Islington, we remove chimney breasts and dividing walls safely, sizing every beam to an engineer's calculations and bearing it onto padstones.

The typical Holloway project opens up a ground floor by removing the wall between the front bay and the middle reception, or taking down a chimney breast to free up space. These walls carry load from the storeys above, so a structural engineer calculates the beam size first. We install temporary propping, carry out staged demolition, and lower the new RSJ onto padstones that spread the bearing into the solid brickwork either side.
Because many Holloway terraces share a party wall with the house next door, cutting a bearing into that wall triggers the Party Wall Act. you serve the correct notices on your neighbours before work begins, and we book building control to inspect the propping, the beam and the padstones at the right stages. Every installation is signed off under building regulations, giving you a completion certificate that protects the value of the property.
Removing a load-bearing wall in an occupied Holloway home demands a careful sequence. Before anything comes down, we prop the floor and ceiling above with adjustable steels, so the structure is fully supported while the old brickwork is taken out. Dust protection and floor coverings keep the rest of the house clean, which matters when you are living around the work in a narrow terrace with rooms leading off a single hallway.
Rear closet wings and side returns, common across Holloway's period stock, often hide awkward structural junctions where old and new walls meet. Our engineers design the steelwork to suit these real conditions rather than a textbook layout, and we detail how each beam connects to existing walls and floor joists. Once the beam is in and the padstones have cured, we make good the plaster, so the finished room shows no sign of the wall that once stood there.
Holloway homeowners choose GS Renovation because we manage the full structural job under one roof, from the engineer's calculations to the propping, the beam and building control sign-off. With 30+ years across N7 and the wider Islington borough, we understand how these Victorian terraces are built and where the loads really go.
George is a very hard working builder, and has done a fantastic job on replacing my Bathroom. His attention to detail was great and I wouldn't…
George always kept to commitments and arrived on time. He offered helpful suggestions during his initial visit and promptly provided a reasonably…
Really happy with the quality of remedial works carried out by George in putting other previous tradesman work right. He was very helpful, honest and…
FAQ
The totals are usually closer than the structures behind them. A national firm subcontracts the RSJ and steel beam installation work in Holloway and prices its own overhead into your quotation, whereas GS Renovation carries out the N7 job with its own team. That also means one named project manager rather than a call centre. Ask both quotations for the same itemised breakdown. Ring 07472 424 226 and GS Renovation will explain who would actually be on your N7 site in Holloway. 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.
Yes, on loading and on fire. Your Holloway property let room by room carries different floor loads from a single family house, and the escape route through it has requirements a family home does not. The engineer designs for the loads actually present, and the fire protection to any new steel is specified accordingly. Licensing conditions for the property are checked before the work is programmed.
It is possible in anything built or altered before the ban, and it is checked rather than assumed. In Holloway houses the usual places are textured ceiling coatings, old floor tiles and the backing to some boards. Where material is suspected it is sampled before it is disturbed, and removal is carried out by a licensed contractor where the type requires it. Nobody drills into a suspect ceiling to find out.
The contractor arranges it, including the licence where it stands on the public footway. A scaffold outside your Holloway property generally needs a licence from the highway authority, and lighting and hoarding conditions come with it. We obtain that and book it around the delivery of materials, so the scaffold is not standing and being paid for while the work waits on something else.
Sometimes, and the answer depends on the extent rather than the address. Propping and cutting masonry in a Holloway house makes the affected floor unusable and noisy for a period, and the landlord's obligations to the tenants do not pause for it. Where the work is confined to one storey it can often be managed. Where it opens the main circulation route it usually cannot.
They are protected in place, and where the new opening cuts a run of cornice it is stopped at a deliberate point or returned properly. A Holloway house frequently retains original plaster detail close to where a beam is going in, and vibration alone damages it. Missing sections can be run to match rather than replaced with the nearest stock profile.
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 Holloway. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Holloway and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Holloway. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.