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RSJ and Steel Beam Installation Dulwich

Steel beam installation, rsj and structural alterations in Dulwich. Trusted, professional, 30+ years' hands-on experience.

GS Renovation installs RSJs and steel beams across Dulwich, working on the bay-fronted Victorian and Edwardian terraces that fill the SE21 streets around Dulwich Park. With over 30 years of structural experience in South London, we remove load-bearing walls safely, from the dividing wall between two receptions to the wall closing off a rear closet wing.

RSJ and Steel Beam Installation in Dulwich, London by GS Renovation
RSJ and Steel Beam Installation by GS Renovation in Dulwich.

Steel beam knock-throughs in Dulwich terraces

Most Dulwich steel work involves opening up the two front-to-back reception rooms in a period terrace, or removing the wall between the kitchen and the rear closet wing. Every beam is sized by a structural engineer for the actual span and loads above, then set to bear onto concrete padstones at each end. We never guess a section, because the wall above often carries the floor joists and part of the roof.

Before any brickwork comes down, we install temporary propping to support the floors and any masonry overhead, then take the wall out in safe, staged sections. In these solid-walled SE21 houses the dividing wall frequently forms part of a shared party wall with the neighbouring terrace, so the sequence and propping have to be planned with the connected structure in mind.

Party wall notices and building control in SE21

Where the wall you want to open sits on the boundary with the house next door, the Party Wall etc. Act 1996 applies. We help you serve the correct notices on adjoining owners in good time, which matters on Dulwich's tightly built terraces where chimney breasts and dividing walls are commonly shared. Getting this right protects both properties and keeps the job moving without disputes.

Structural beam work is controlled under the Building Regulations rather than planning permission, so it needs building control approval, not an application to Southwark Council for permission. We arrange inspection at the key stages, with the engineer's calculations and beam schedule ready, and secure sign-off once the steel, padstones and fire protection are in place, giving you the certificate you will need when you come to sell.

  • Party Wall Act notices and awards
  • RSJ and structural steel beam installation
  • Load-bearing wall removal and knock-throughs
  • Structural openings for open-plan living
  • Structural engineer calculations and beam sizing
Service areaDulwich · SE21
Local authoritySouthwark Council
Part ofSouth London (Inner London)
Typical homesBay-fronted Victorian and Edwardian terraces with rear closet wings and side returns
Also covered nearbyPeckham, Camberwell, Bermondsey, Borough and Southwark

Why Dulwich Homeowners Choose GS Renovation

Dulwich homeowners choose GS Renovation because we treat the structure as the priority, not an afterthought. One team handles the engineer's design, the propping, the safe demolition, the party wall notices and the building control sign-off. After 30+ years opening up SE21 terraces, we know how these houses are built and we make the mess and disruption as short as possible.

  • Free, no-obligation quotations
  • Over 30 years of hands-on experience
  • Dedicated project management
  • Fully insured and guaranteed work
  • Building control and planning support
  • Clean, tidy and reliable tradespeople
30+ YearsExperience
Fully Insured& Guaranteed
500+ ProjectsCompleted
Building ControlCompliant
Free QuotesNo obligation
Reviews

Rated 4.9 / 5 by our clients

★★★★★ 4.9 average from 31 verified reviews on MyBuilder

★★★★★
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great attention to detail. I've already recommended him to others.
OscarCrofton Park, London · via MyBuilder
★★★★★
Splendid job on our new kitchen refurb, including new flooring, moving the services, installing RSJ and preparing space for new back doors… George was always friendly, communicative and has an excellent attention to detail, ensuring everything is finished to a high standard.
KathWood Green, London · via MyBuilder
★★★★★
Giorgio is an excellent and intelligent workman, and with very reasonable prices!… He paid a lot of attention to detail that is not common at all, and the final result was immaculate. Highly recommended!
Adil KhanWoolwich, London · via MyBuilder
Read all 31 reviews on MyBuilder

FAQ

Frequently Asked Questions about RSJ and Steel Beam Installation Dulwich

How much does RSJ and steel beam installation cost in Dulwich?

The cost of RSJ and steel beam installation in Dulwich depends on the size of the property, the specification and the scope of work. GS Renovation provides free, detailed and itemised quotations for every Dulwich project. Call 07472 424 226 or email info@gsrenovationltd.co.uk for a no-obligation estimate. As a rough guide, RSJ and steel beam installation in London runs roughly £1,500 to £4,000 for the beam itself on a single straightforward opening, covering supply, installation and building control sign-off; a full knock-through including taking the wall out, the structural engineer's fee and making good more typically comes to £2,500 to £6,500 or more (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.

How long does RSJ and steel beam installation take in Dulwich?

Timescales for RSJ and steel beam installation in Dulwich vary with the size and complexity of the job. After our survey we give you a realistic schedule and keep you updated at every stage of the project.

Why choose GS Renovation for RSJ and steel beam installation in Dulwich?

Dulwich homeowners choose GS Renovation for reliability and quality. We are fully insured, building control compliant where needed, and bring over 30 years of hands-on experience to every RSJ and steel beam installation project, with a single point of contact throughout.

Do I need planning permission to remove a load-bearing wall in Dulwich?

Removing a load-bearing wall in Dulwich does not normally need planning permission, but it always needs building regulations approval, a structural engineer's calculations and building control sign-off. Where the wall is shared with a neighbour, the Party Wall Act may also apply. We manage all of it.

Do you work on Victorian and Edwardian terraced homes in Dulwich?

Yes. A large share of Dulwich's homes are Victorian and Edwardian terraced properties, and we renovate them regularly. We plan each RSJ and steel beam installation around their particular characteristics, such as solid brick walls, rear closet wings, side returns and original period features, so the result suits the building and meets building control.

Do I need a party wall agreement to put a steel beam in my Dulwich terrace?

Very likely, yes. In SE21 the wall you are opening often sits on the boundary or ties into the shared party wall with the neighbouring terrace, so the Party Wall etc. Act 1996 applies and notice must be served on the adjoining owner. We guide you through the notices, coordinate with the engineer, and only start cutting once the propping and paperwork are properly in place.

Do you cover all of Dulwich?

We cover the whole of Dulwich and the SE21 area and the surrounding South London. If you are nearby and not sure, just call 07472 424 226 and we will tell you straight away.

Every Service, One Team

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