GS Renovation installs RSJs and steel beams across Bromley, from the 1930s semi-detached and interwar suburban houses of BR1 and BR2 to the substantial homes around Chislehurst and Beckenham. With over 30 years of structural experience in the borough, we handle the engineer's design, the propping and the safe removal of load-bearing walls under building control.
Opening up interwar Bromley layouts safely
The typical Bromley steel job takes a 1930s semi and removes the wall between the front reception and the rear dining room, or knocks the kitchen through to the dining room to make one open space. These interwar homes were built in compartments, so that spine wall almost always carries the floor above and the roof load. We start with a structural engineer sizing the beam, then prop the structure temporarily before any brick comes down.
Working across BR3, BR5 and BR6, we set each RSJ onto properly designed padstones so the load spreads safely into the remaining masonry. Demolition is staged, not rushed, with the props taking the weight until the steel is seated, packed and pinned. Bromley Council building control inspects the beam and bearings, and we book those visits so nothing is closed up before it has been signed off.
Party walls and chimney breasts in Bromley
Many Bromley semis share a party wall with the neighbour, and the chimney stacks often sit within it. Where a beam bears into that shared wall, or where we remove a chimney breast on a party line, the Party Wall Act applies and notice must be served on the adjoining owner before work starts. We flag this early so the notice period does not delay your project, and we keep the neighbour informed throughout.
Removing a chimney breast in a BR7 or SE20 house needs the flue above properly supported, usually with a gallows bracket or its own steel, not simply cut away and left. We assess the whole stack, from the ground floor breast up to the roofline, and provide the engineer's detail so building control is satisfied the retained brickwork is safe and adequately carried.
Checking what sits under the bearing points
A steel beam concentrates the weight of a whole wall into two small points, and those points need something solid beneath them all the way to the ground. Before the engineer finalises the design we open up at each proposed bearing to see what is actually there. In a Bromley semi that usually means establishing whether the pier is solid brick or cavity construction, whether a previous opening has been formed nearby, and how the masonry below is coursed.
Where the load is heavy or the bearing lands on a length of wall with little footing under it, a trial hole outside shows the depth and condition of the existing foundation, and the engineer may call for a concrete pad or a widened footing before the beam goes in. This is more common on the larger spans people want in BR6 and BR7 houses. Finding it at design stage adds a day. Finding it once the props are up adds a fortnight.
- Lintel and catnic support to smaller openings
- Flitch beams where a slimmer steel and timber solution suits
- Existing pipework and cabling diverted around the new opening
- Building control applications and inspection sign-off
- Steel delivered cut, drilled and primed to the engineer's schedule
Trusted RSJ and Steel Beam Installation in Bromley
Bromley homeowners choose GS Renovation because we treat steelwork as structural engineering, not guesswork. One team manages the engineer's calculations, the temporary propping, the padstones and the building control sign-off. With 30+ years across BR1 to BR7 and SE20, we open up interwar homes cleanly, safely and with the paperwork done properly.
- Restricted London access planned before the steel arrives
- Registered in England, Companies House no. 14611254
- Dust screens and floor protection in occupied homes
- Aftercare and snagging support once the job is finished
- Party Wall Act notices served where a beam bears into a shared wall
- Steel ordered cut, drilled and primed to the schedule