GS Renovation installs RSJs and steel beams throughout Morden, where the 1930s semi-detached and interwar houses across SM4 often need a load-bearing wall removed to open up dated rooms. With over 30 years of structural experience in South West London, we handle engineer-designed steelwork from temporary propping through to building control sign-off.
Steel beams for Morden's interwar semis
The generous plots and boxy layouts of Morden's 1930s semis lend themselves to knocking through the ground floor, but the wall between the front and back reception is almost always load-bearing. Before any demolition, a structural engineer sizes the RSJ for the span and the load above, and we cast or fit padstones so the beam bears safely onto sound masonry at each end.
We prop the structure temporarily, take the wall down in a controlled, staged sequence, then lift the steel into position and pin it up tight. Merton Council's building control team inspects the beam, the bearings and the fire protection before sign-off. In these interwar houses the chimney breast often shares the load, so we plan the support around the stack rather than simply cutting it away.
Party wall steelwork in Morden SM4
Many Morden semis share a dividing wall with the house next door, and where a beam bears into or cuts into that shared wall the Party Wall Act applies. you serve notice on the adjoining owner in good time, usually two months before work starts, so the steelwork stays lawful and neighbourly. That matters on the tightly paired semis common across SM4.
On a chimney breast removal or a full-width opening, the load has to travel down to the foundations, so we check the padstone, the beam and the supporting piers as one connected system. Our engineer specifies the section, we install it cleanly in your occupied home, and every stage is booked in with building control so the finished structure is certified and safe for years to come.
What makes one opening a bigger job
Two houses on the same Morden street can need very different work for what looks like the same opening. Span is the first factor, since a wider opening needs a deeper, heavier beam and larger bearings. Load is the second, and a wall carrying a floor, a wall above and part of the roof is a different proposition from one carrying a floor alone. Both are settled by the engineer, not by the size of the hole you want.
After that it is the practical things. Whether the beam can be carried in, whether the bearing lands on solid masonry or needs a pier rebuilding, whether a party wall notice is required, and how much pipework and wiring is buried in the wall. On the SM4 interwar semis with a straightforward spine wall and side access it is usually a short job. Where the wall has been altered before, it rarely is.
- Level, plumb and deflection checks before props are struck
- Beam boxing, fire protection and plasterboard encasement
- Access and lifting plans for restricted London sites
- Lintel and catnic support to smaller openings
- Existing pipework and cabling diverted around the new opening
Trusted RSJ and Steel Beam Installation in Morden
Homeowners across Morden trust GS Renovation because steelwork is our core trade, not a sideline. One team manages the engineer's design, the temporary propping and the building control inspections, so nothing falls between contractors. With 30+ years behind us in SM4 and the surrounding Merton streets, we deliver structural change that is calculated, certified and built to last.
- Neighbours given notice before the noisy stages
- Steel ordered cut, drilled and primed to the schedule
- Rated 4.9 from 31 reviews on MyBuilder
- Structural engineer instructed and coordinated on your behalf
- High-density concrete padstones bedded at every bearing
- Itemised pricing, so you can see what every stage costs