RSJ and Steel Beam Installation Hammersmith and Fulham

GS Renovation installs RSJs and steel beams across Hammersmith and Fulham, from the bay-fronted terraces of W6 and W14 to the riverside homes near Bishops Park in SW6. We open up period houses safely, from load-bearing wall removal to building control sign-off.

In Hammersmith and Fulham, a steel beam for one opening typically costs £1,500 to £4,000 fitted and signed off, or £2,500 to £6,500 or more for a full knock-through with the engineer's fee and making good (indicative London ranges, MyBuilder and Checkatrade, 2026). GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Hammersmith and Fulham.

How the job runs

1. Free site survey at your Hammersmith and Fulham address and an itemised quote.
2. The engineer we appoint sizes the beam, and the work is registered with Hammersmith and Fulham Council building control or an approved inspector. On a shared wall you serve the party wall notice as building owner; we supply the drawings.
3. Props go in, the opening is cut and the beam is set on padstones, packed tight above.
4. Building control inspects the steel before it is covered. We make good, and the completion certificate follows.

Steel beams for Hammersmith and Fulham terraces

The Victorian and Edwardian terraces around Fulham Broadway and Shepherd's Bush were built with solid load-bearing masonry, so removing the wall between two reception rooms or opening a rear kitchen means carrying that load on steel. Every beam we fit is sized by a structural engineer to suit the span and the weight above, then set to bear onto concrete padstones so the point loads transfer cleanly into sound brickwork below.

Before any wall comes down we install temporary propping and work through a safe, staged demolition, cutting the pockets, seating the RSJ and pinning up to the underside before the props come out. In these tightly built W12 and SW6 homes we protect floors and stairs, keep dust down and leave the structure ready for plastering, with everything sequenced to keep the house stable throughout.

Housing in Hammersmith and Fulham

The valuation list shows roughly 95,080 homes in Hammersmith and Fulham, of which 56% are pre-1919, 9% interwar and 34% post-1945, split 77% flats to 23% houses. Most homes here are flats, and a beam in a leasehold flat in Hammersmith and Fulham needs the freeholder's licence for alterations, since the lease usually keeps the structure with the freeholder.

Timing the bearing inspection for a beam in Hammersmith and Fulham

Hammersmith and Fulham Council runs its own building control service, and its guidance asks for 1 day's notice for most site inspections. On a steel beam the visit that counts is the one where the padstones are bedded and both bearings are still open, before the pockets are packed and plastered over. So the steel is lifted and levelled, the call goes in the working day before, and nothing at either end is closed in until the inspector has looked at it. If the visit slips by a day, the props stay up and the plasterer waits. A bearing hidden too early leaves the inspector nothing to see, and the only remedy then is cutting the wall open again.

The bearing deserves that attention because of what it sits in. 56% of homes in the borough were built before 1919, so the pocket is often cut into soft brick laid in lime mortar. A pier that looks solid on the drawing can turn out to be half bricks, rubble fill or an old flue. When the opening shows something other than the design assumed, work stops, the brickwork is photographed and the structural engineer we appoint issues a revised detail. The inspector then signs off the bearing that was actually built, which is the record you want when the certificate is issued.

Party walls and building control in Hammersmith and Fulham

Because these terraces share a party wall with the house next door, and chimney breasts and dividing walls often sit within it, cutting a beam bearing into that shared wall usually triggers the Party Wall Act. You serve the correct notices on adjoining owners in good time, which matters on the closely packed streets of Hammersmith and Fulham where neighbours sit only a brick's width away.

Steel beam work is governed by building regulations rather than planning permission, so we notify Hammersmith and Fulham Council's building control or use a registered building control approver. The engineer's calculations, the padstone details and the beam sizes are all submitted, and an inspector checks the bearings and fire protection before sign-off. You finish with a completion certificate that protects the value of your home and any future sale.

Choosing and protecting the right section

People say RSJ, but the section your engineer specifies is usually a universal beam, and occasionally a channel, a hollow section or a pair of beams bolted together with a spacer. The choice follows the span, the load and how much depth the room can give up. A parallel flange universal beam is the ordinary answer in a Fulham terrace; a flitched timber beam sometimes suits a lighter span where a steel would be awkward to get in.

Protection matters as much as the section. Steel arrives with a basic primer that is not a long-term finish, so where a beam sits in or near an external wall in SW6 we specify a proper paint system or galvanising, because a beam that rusts in a damp reveal will jack the brickwork above it. Bearings are damp-proofed, and any exposed steel is fire protected to the thickness the regulations require for the storey it sits in.

• Making good, plastering and finishing around the new steel
• Access and lifting plans for restricted terraced and town-centre sites
• Bearing checks into party walls and shared masonry

VOA Council Tax stock of properties, March 2025, for all 25 statistical areas in Hammersmith and Fulham. Counts rounded by the VOA.

For the wider picture around RSJ and steel beam installation in Hammersmith and Fulham, see home renovation in Hammersmith and Fulham, our Hammersmith and Fulham area guide, London builders who fit steel, the Party Wall Act when a beam bears on a shared wall, RSJ and steel beam installation across London and Bowing Wall Repair.

Why Hammersmith and Fulham Homeowners Choose GS Renovation

Homeowners across W6, W12, W14 and SW6 choose GS Renovation because we treat steelwork as one accountable process, from the engineer's calculations through to propping, installation and building control sign-off. Our founder's 30+ years on the tools means we understand these shared walls and solid-brick structures, and we leave the house safe and signed off by building control.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.