Steel beam installation, rsj and structural alterations in Tottenham. Trusted, professional, 30+ years' hands-on experience.
GS Renovation installs RSJs and steel beams across Tottenham, from the bay-fronted Victorian terraces off the N17 streets near Finsbury Park to the Edwardian homes closer to Wood Green. With over 30 years of structural work in North London, we remove load-bearing walls safely and leave a clean, signed-off opening.

The dividing wall between the front reception and the middle room in a Tottenham Victorian terrace almost always carries load from the floors and roof above. Before any demolition, we have a structural engineer calculate the steel size, then set concrete or steel padstones into the flanking walls so the new beam bears evenly. Temporary props take the load while we work, and the opening is formed in careful stages rather than knocked through in one go.
Because these N17 terraces share dividing and party walls with the houses either side, the chimney breasts and structural walls frequently sit on a shared line. Where that is the case we serve the correct Party Wall Act notices to your neighbours before starting, and building control inspects the beam, bearings and fire protection before we close everything up and plaster over.
No two Tottenham openings are identical, so we never fit a standard beam. The engineer works from the actual span, the wall thickness and what sits above, whether that is a bedroom floor, a rear closet wing or a chimney stack, and specifies the beam and its bearings accordingly. On wider knock-throughs we may pair beams or use a goalpost frame with steel posts down to a suitable foundation.
Safe propping is where most of the risk sits, so we plan it properly. Acrow props and strongboys support the floor joists above while the wall comes out and the padstones cure. Only once the steel is seated, levelled and packed do we strike the props. Every stage is booked in with Haringey building control, and you receive the completion certificate for your records and any future sale.
Tottenham homeowners choose GS Renovation because we manage the whole structural job, engineer's calculations, party wall notices, propping, the steel itself and building control sign-off, as one accountable team. Thirty years across North London means we understand how these Victorian and Edwardian terraces are built, so the work is safe, tidy and correctly certified.
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.
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.
I had a bathroom refit which I was very pleased with and I then went on to get my kitchen refitted as I was so happy with the way he worked. Even though I made a few changes to my original idea nothing bothered him and he worked his magic…
FAQ
Three things set the price of RSJ and steel beam installation: how much structure is involved, how hard access is at the N17 address, and what making good takes. All three appear separately in your Tottenham quotation. 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.
You get a programme for RSJ and steel beam installation at quotation stage, not afterwards. If the N17 property throws up something unexpected we tell you at once and re-plan the Tottenham work rather than letting it drift.
Homeowners choose us for RSJ and steel beam installation because the process is clear from the first survey: an itemised quotation, a written programme for the N17 property, and one person to call throughout the Tottenham job.
If the beam bears into a wall shared with a neighbouring property, yes, and that covers most terraces and semis in Tottenham. Notice must be served before work begins, and the duty sits with you as building owner. We prepare the notices for your N17 address.
We work on them constantly. RSJ and steel beam installation at a N17 address needs the structure confirmed by an engineer before design, and GS Renovation coordinates that as standard across Tottenham.
Usually yes. In N17 terraces the wall you are cutting into, or the chimney breast above it, often sits on the party wall shared with next door. If the beam bears into that shared wall, the Party Wall Act applies and your neighbours must be served notice before work starts. We prepare and serve the correct notices for you.
Every part of Tottenham is covered. We work regularly around N17 and across Haringey, so the team carrying out RSJ and steel beam installation is rarely far from 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 Tottenham. Explore what else we do locally:
Same Service, Nearby Areas
We carry out RSJ and steel beam installation across Tottenham and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for RSJ and steel beam installation in Tottenham. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.