RSJ and Steel Beam Installation Stratford

GS Renovation installs RSJs and steel beams across Stratford, from the new-build apartments near the Queen Elizabeth Olympic Park and the post-war blocks to the Victorian terraces of E15. We open up load-bearing walls safely and sign every beam off with building control.

In Stratford, 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 Stratford.

How the job runs

1. Free site survey at your Stratford address and an itemised quote.
2. The engineer we appoint sizes the beam, and the work is registered with Newham 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 in Stratford conversions and terraces

A load-bearing wall removal in a Stratford home starts with a structural engineer sizing the RSJ for the span and the load above. In the Victorian terraces around West Ham Park the dividing wall is usually solid brick, so we install temporary propping, take the wall down in stages and lower the beam onto padstones at each bearing. Every step is planned before the props go anywhere near the ceiling.

In a new-build or post-war apartment near the Olympic Park the picture is different. Structural change is limited by the building's frame, so we work with your engineer and your freeholder to confirm what can move. The leasehold almost always requires the freeholder's licence to alter, and the managing agent will want method statements before any steel is ordered or a single wall comes down.

Housing in Stratford

On the valuation list Stratford counts about 17,020 homes, 71% flats and 29% houses; 27% predate 1919, 1% are interwar and 71% post-war. Where most homes are flats, a beam in a leasehold flat in Stratford needs the freeholder's licence for alterations, since the lease usually keeps the structure with the freeholder.

Inheriting someone else's steel in a Stratford terrace

27% of homes in Stratford were built before 1919, and 28% are terraced houses. Buying one of those E15 terraces can mean inheriting a knock-through an earlier owner did, with no completion certificate in the sale pack. Newham Building Control can regularise work already done by checking it is of a good standard, for building work done after 11 November 1985. For a beam, that means exposing both bearings and a length of the steel so the inspector can see the section, the padstones and the packing. Plan for plaster coming off in two places, not a quick look behind a hatch.

Where a new beam goes in alongside, or the old one turns out to need replacing, we suggest a full plans application. Newham wants scale plans in two copies, building notes, and structural calculations such as those for loading, and decides within five weeks of receiving the application, or within two months by agreement. In a Stratford terrace that lets the structural engineer we appoint assess the old steel and the new together, so the approved drawings describe the whole ground floor rather than one opening, and the house file is complete for the next buyer.

Party wall notices across Stratford E15

Many Stratford terraces share a party wall with the neighbouring house, and in an apartment block you may share structure with the flat next door or below. Where a beam bears into a shared wall, the Party Wall Act applies and you serve notice on the affected owners as building owner before work begins. We flag this early and give you the drawings, so the notice period runs while the engineer's drawings and the building control application are being prepared.

Building control sign-off is separate from planning permission and is what matters for steel. An inspector checks the beam size, the padstones, the bearing and the fire protection against the approved drawings. We book the inspections, keep the calculations on site and arrange the final certificate once the work passes. For leaseholders in E15 we also hand the paperwork to the managing agent, who often needs it for the building's records.

Altering a modern Stratford apartment

Removing a wall in one of the newer blocks near the Olympic Park is a different exercise from opening a Victorian terrace. Many internal walls in a concrete-framed building are metal stud partitions carrying nothing, so no beam is needed at all; the structure is in the frame and the slabs. What matters instead is establishing which walls are structural and what is buried in the slab before anything is cut.

That last point is important. Some modern slabs are post-tensioned, with tendons running through them that must never be drilled or cored without the original structural information and a scan. Fixings into the soffit, new drainage through a floor and any core hole all need checking first. The lease will also require the freeholder's consent and a structural engineer's report before work starts. We obtain the building's structural drawings where they exist rather than assuming the wall is only plasterboard.

• RSJ and structural steel beam installation
• Temporary propping and staged, controlled demolition
• Structural engineer's calculations arranged and followed

VOA Council Tax stock of properties, March 2025, for Stratford East, Stratford Central, West Ham & Stratford Park and Carpenters Estate & Stratford New Town. Counts rounded by the VOA.

Alongside RSJ and steel beam installation in Stratford, the pages that usually help next are home renovation in Stratford, RSJ and steel beam installation across Newham, building control sign-off for a steel beam, party walls and steel beams, how we handle RSJ and steel beam installation across London and Architect or Structural Engineer?.

The GS Renovation Difference in Stratford

Homeowners in Stratford choose GS Renovation because we treat structural work as the serious job it is. One team appoints the engineer who produces the drawings and handles the propping, the beam and the building control sign-off, whether your home is a Victorian terrace or a leasehold apartment. Our founder's 30+ years on the tools means we know the local stock and the paperwork inside out.

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.