RSJ and Steel Beam Installation Kentish Town

GS Renovation installs steel beams and RSJs across Kentish Town, working in the Victorian and Edwardian terraces that line the NW5 streets between Camden Town and Highgate. We remove load-bearing walls safely, from ground-floor knock-throughs to rear-wing openings, all sized by the engineer, propped and signed off correctly.

In Kentish Town, 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 Kentish Town.

How the job runs

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

The typical Kentish Town job opens up a solid-brick Victorian terrace, taking down the wall between the front and rear reception rooms or removing the closet-wing wall to widen the kitchen. Because these walls carry the floor and often the chimney breast above, a structural engineer sizes the RSJ first. We then set out temporary propping, cut carefully and lower the steel onto padstones so the load transfers cleanly to the existing brickwork.

Solid nine-inch walls in NW5 homes behave differently to modern cavity construction, so we never guess at bearings. Every beam sits on a properly calculated padstone, the propping stays in place until the steel is loaded, and demolition happens in staged sections rather than all at once. This keeps the floors above stable and protects the original cornicing and plaster that Kentish Town owners want to keep.

Housing in Kentish Town

The valuation list shows roughly 8,940 homes in Kentish Town, of which 44% are pre-1919, 4% interwar and 52% post-1945, split 87% flats to 13% houses. Where most homes are flats, a beam in a leasehold flat in Kentish Town needs the freeholder's licence for alterations, since the lease usually keeps the structure with the freeholder.

A beam in a Kentish Town terrace now split into flats

87% of homes in Kentish Town are flats and 44% were built before 1919, so a steel beam here often goes into a period terraced house that has since been divided into flats. The wall you want to open in an upper flat usually stands on a wall inside the flat below, and each new padstone needs something sound beneath it. Before the design is fixed, we ask the owner downstairs for access to see what sits under each bearing point, because an old opening on their floor can leave the load with nowhere to go.

The paperwork follows the same split. A leaseholder in Camden must have the freeholder's consent and must use a full plans application, not a building notice, and a decision comes within 6 weeks, or 2 months for more complex proposals. In a converted Kentish Town house the freeholder may be one of the other flat owners, or a company they share. Sending them the engineer's calculations early also gives the neighbour below a reason to allow the inspection visit the design depends on.

Party wall steelwork in NW5 terraces

Most Kentish Town terraces share a party wall with the neighbours on both sides, and chimney stacks and dividing walls frequently sit within that shared structure. When a beam bearing lands in or on a party wall, the Party Wall Act applies. We flag this early, give you the drawings to serve the correct notices on adjoining owners, and coordinate the timing so the steelwork proceeds without disputes or delays with the houses either side.

Building control is the other non-negotiable. Structural beam installation is governed by Building Regulations rather than planning permission, so Camden Council building control, or a registered building control approver, checks the engineer's calculations and inspects the padstones and bearings before the opening is closed up. We arrange those inspections, keep the sign-off paperwork in order and hand you a completion certificate you can produce whenever you sell the house.

Who does what on a steel job

Four parties are usually involved and it helps to know which is which. The structural engineer is appointed to survey, calculate and design the beam, and we never produce those calculations ourselves. Building control, either the council or a registered building control approver, checks that what gets built matches that design. A party wall surveyor comes in where notice is dissented or the work is complicated enough to want one.

We are the contractor. That means we appoint and coordinate the engineer, give you the drawings for the party wall notices you serve, book the inspections, carry out the propping, the demolition, the steelwork and the making good, then hand you the certificates at the end. Owners in NW5 sometimes ring three separate firms for those roles and end up managing the gaps between them. One point of responsibility is simpler, and nobody is left waiting on somebody else's drawing. It also means one firm answers for the finished work rather than three pointing at each other.

• Temporary propping and staged, controlled demolition
• Load-bearing wall removal and knock-throughs
• Flitch beams where a slimmer steel and timber solution suits

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

Once you know the scope of the RSJ and steel beam installation in Kentish Town, it helps to read home renovation in Kentish Town, RSJ and steel beam installation across Camden, building control sign-off for a steel beam, the Party Wall Act when a beam bears on a shared wall, RSJ and steel beam installation anywhere in London and Floor Joist Repair.

Trusted RSJ and Steel Beam Installation in Kentish Town

Kentish Town homeowners choose GS Renovation because we handle the whole beam job under one roof, from coordinating the engineer's calculations to propping, steel and building control sign-off. Our founder's 30+ years on the tools means we know how these solid-wall houses are built, we work tidily in occupied homes, and we leave the structure signed off and safe.

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.