RSJ and Steel Beam Installation Addiscombe

GS Renovation installs RSJs and steel beams across Addiscombe, where bay-fronted Victorian and Edwardian terraces with rear closet wings and side returns make up much of the housing. We remove load-bearing walls safely, from the ground floor of a two-up two-down to a full through-lounge.

In Addiscombe, 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 Addiscombe.

How the job runs

1. Free site survey at your Addiscombe address and an itemised quote.
2. The engineer we appoint sizes the beam, and the work is registered with Croydon 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.

Load-bearing wall removal in Addiscombe terraces

The wall between the two reception rooms in an Addiscombe terrace is almost always load-bearing, carrying the floor joists above and, in many cases, a chimney breast and stack. Before anything is touched, we have a structural engineer calculate the load and specify the correct steel, whether that is a single RSJ or a pair of beams bolted together for a wider opening across a bay-fronted front room.

On site we install temporary propping to take the weight, then carry out staged demolition so nothing is left unsupported. The beam bears onto concrete or engineered padstones at each end, spreading the load into the solid brickwork. Building control inspects the padstones and the finished steel, and we keep the property watertight and clean while an Addiscombe family stays living upstairs.

Housing in Addiscombe

Addiscombe's housing, as the Council Tax list records it, is about 11,740 homes: 55% houses, 45% flats, with 52% pre-1919, 21% interwar and 27% built since 1945. A beam in a terrace in Addiscombe often bears on the party wall, bringing in the Party Wall Act, and 41% of homes here are terraced.

Seating steel on Victorian brickwork in Addiscombe

52% of homes in Addiscombe were built before 1919. Brickwork of that age is usually laid in soft lime mortar, with bricks that vary in size and hardness from course to course. A beam end concentrates its load onto a small area of that wall, so the padstone matters as much as the steel. The structural engineer we appoint sizes it to spread the load over enough brickwork. We cut the pocket, check the bricks behind for voids and rebuild any loose courses before the padstone goes in. Where the bearing lands on an old flue or a blocked fireplace, it moves along the wall or a post is added.

Packing is the other detail. Once the steel is on its padstones, the gap above it is dry packed tight so the wall above takes up the load evenly, and building control wants to see the bearings and the packing before they are covered. Croydon inspections take place between 10:30am and 3:30pm on weekdays only, so on an Addiscombe job we time the lift for a morning early in the week and book the visit ahead. The props stay up until that visit, which in a terrace means a household living around them for a few days.

Party wall steelwork on Addiscombe's shared walls

Because Addiscombe's terraces share a party wall with the house next door, any beam that bears into that dividing wall brings the Party Wall Act into play. We flag this early, give you the drawings you need to serve the correct notice on your neighbour as building owner, and work to their surveyor's award if one is made, so the steelwork proceeds without a dispute holding up the job.

Chimney breast removal is a common companion to this work in CR0. Where a homeowner wants to reclaim the space in a closet wing or bedroom, the stack above has to be supported on a steel beam, or on gallows brackets only where the engineer and building control accept them, rather than left hanging. The engineer we appoint sizes that support, we install it, Croydon building control inspects and signs it off, and we make good the shared wall properly.

Getting steel into a mid terrace house

A beam for an Addiscombe terrace is often four metres or more of solid steel, and there is no side access to bring it in. It comes through the front door, along the hall and into the room by hand, so we measure the turn at the foot of the stairs before the steel is ordered. Where the length or the weight makes that impossible, the engineer can specify two lighter sections bolted together on site to act as one beam.

Delivery needs a space on the street, so where the road is permit controlled we arrange a bay suspension or a timed drop rather than blocking your neighbours in. Everything that goes with the beam, the padstones, the props and the spreader plates, arrives before demolition day so the wall is never opened up while we wait on materials. Planning the delivery properly is what keeps a terrace job to a week.

• Party wall process explained, and the beam built to the award
• Steel columns, base plates and bolted connections
• Structural engineer's calculations arranged and followed

VOA Council Tax stock of properties, March 2025, for Addiscombe North, Addiscombe East and Addiscombe West. Counts rounded by the VOA.

Two or three things usually come up alongside RSJ and steel beam installation on an Addiscombe job: home renovation in Addiscombe, RSJ and steel beam installation across Croydon, building control sign-off for a steel beam, the Party Wall Act when a beam bears on a shared wall, our London RSJ and steel beam installation page and Architect or Structural Engineer?.

Trusted RSJ and Steel Beam Installation in Addiscombe

Addiscombe homeowners choose GS Renovation because we treat steelwork as structural engineering, not guesswork. Every beam is sized by the engineer we appoint, propped safely, seated on proper padstones and signed off by building control, and where the shared wall is affected we give you the drawings for the party wall notice you serve. Our founder's 30+ years on the tools means we know how these terraces are built.

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.