Steel BeamInstallers
Brickwork propped above a window while a cracked lintel is replaced

Lintel replacement · Archway

Lintel replacement in Archway

Lintel replacement in Archway, from free survey to completion certificate.

  • Free survey visit in Archway
  • Engineer's calculations arranged
  • Building control handled for you

Free survey in Archway

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  • Free survey visit
  • Engineer's calculations arranged
  • Building control handled
  • Fixed written price once scope is agreed
  • England, Wales, mainland Scotland & NI

Planning lintel replacement in Archway

Need lintel replacement in Archway? We also cover the surrounding towns and villages in London. We survey the property, arrange the engineer's design, deal with local building control, fit the steel and make good, all under one quote for N4, N5, N6, N7 and N8 addresses.

We survey the opening, arrange the engineer's specification and building control, prop the wall, swap the lintel and rebuild the masonry and plaster around it. Your quote is written and itemised, and it covers matching the bricks and mortar as closely as the existing wall allows.

Worth knowing before you start

  • Diagonal cracks that start at the top corners of a window and step up through the mortar joints are a classic sign of a lintel problem. Movement elsewhere in a house can cause similar cracks, so the cause is confirmed on site before anything is replaced.
  • Older steel lintels and bare steel angles can corrode where water sits on them. Rust takes up more room than the steel it comes from, so a corroding lintel can lift the brick course above it and open up horizontal cracks.
  • Bricks taken down are cleaned and reused where possible, and any shortfall is made up with reclaimed or close-matching bricks. Mortar is mixed to suit the colour and strength of the existing wall, which in older homes often means a lime mortar.
  • Many Victorian and Edwardian houses have a timber lintel hidden behind a decorative brick arch or on the inner face of the wall. Damp from leaking gutters or failed pointing can rot it unseen until the brickwork above starts to drop.
  • Concrete lintels fail when the steel reinforcement inside rusts and swells, pushing off the concrete face. Rust staining, flaking edges and exposed bars are the warning signs, and once that process is well under way an engineer will often recommend replacement over patching.

Four stages, one team

  1. Look and measure

    We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.

  2. Design and price

    Calculations come back from the engineer and we confirm your fixed written price, line by line.

  3. Building control

    We submit a building notice or full plans application to the local council's building control team, so approval is in place before the wall is touched.

  4. Fit, inspect, finish

    The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.

How much should I budget in Archway?

As a guide, budget £510–£1,540 per lintel including VAT for lintel replacement in Archway, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Lintel replacement£510–£1,540 per lintelPropping, removing the old lintel, new lintel set on beds and brickwork made good
Structural calculations for a beam£320–£960Site measure or photos, beam and padstone design and calculations for building control
Widening an internal doorway£1,300–£3,200Opening widened with a new lintel or short beam, approval where structural, and making good
Steel beam replacement£2,550–£7,050Propping, removing the failed beam, new steel on proper bearings, approval and making good

Figures include our approximate regional adjustment for London prices (+28%) and are rounded. How these figures are worked out.

Building control and neighbours in Archway

In England, taking out a load-bearing wall or putting in a beam is building work under the Building Regulations 2010. It needs approval from building control, either the local council's building control team or a registered building control approver, through a full plans application or a building notice. Part A covers the structure and Part B covers fire safety, which is why steel in homes is usually fire protected.

Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.

Building rules in England

Lintel replacement near Archway

Questions about lintel replacement in Archway

Do you also work near Archway?

Yes. We also cover nearby towns including Holloway, Muswell Hill, Chalk Farm and Camden Town.

What happens at the survey visit in Archway?

We look at the wall, the floor and ceiling either side and what sits above, measure the opening you want, and note cables, pipes and access for the steel. It usually takes under an hour and there is no charge.

How long does lintel replacement take?

Most single openings take one to two working days on site, covering propping, removing the old lintel, fitting the new one and rebuilding the brickwork. Upper-floor lintels needing scaffolding, wide bay windows, and jobs where bricks must be sourced to match can all take longer.

Can a timber lintel in an old house be replaced with steel or concrete?

Yes, where the engineer is satisfied it suits the wall. Timber lintels in older solid-walled homes are often swapped for a steel or concrete alternative that will not rot. The engineer considers how the wall is built, and where lime mortar is present the rebuild uses a compatible mortar.

Why is my concrete lintel cracking and flaking?

Usually because the steel reinforcement inside has rusted. Rust takes up more space than steel, so it pushes the concrete cover off, exposing more steel to damp and speeding up the damage. An engineer checks whether the lintel can still do its job, but in many cases replacement is the sensible fix.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.