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

Lintel replacement · Hanworth

Lintel replacement in Hanworth

Lintel replacement for homes in TW1, TW2, TW3, designed by a structural engineer.

  • Survey, design and installation in one
  • Covering TW1, TW2, TW3
  • Inspected before it is covered

Free survey in Hanworth

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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

About our lintel replacement service in Hanworth

Our lintel replacement service in Hanworth covers everything from the first visit to the completion paperwork. The wider London area is covered as well. Postcode districts we cover here include TW1, TW2, TW3, TW4 and TW11.

A lintel is the short beam that carries the brickwork over a window or door. When it fails, the signs tend to show outside first: a crack stepping up from the corner of the frame, a dip in the brick courses, or a window that has started to bind. Timber, concrete and old steel lintels each fail in their own way, but the fix follows the same principle.

What to expect

  • The replacement is specified by a structural engineer, who looks at the opening width, the wall construction and what the lintel carries, such as floor joists, a bay roof or a gable. Solid walls and cavity walls usually call for different lintel types.
  • Cables for outside lights, burglar alarms and doorbells often run just above window and door heads. These are noted at the survey and made safe by an electrician before the brickwork is opened up, then reinstated afterwards.
  • A typical single lintel takes a day or two on site. Keep the building control completion certificate with your property papers, because buyers' surveyors often notice old cracking around openings and their solicitors will ask what was done about it.
  • In cavity walls, a cavity tray and weep vents above the lintel send any water in the cavity back outside. Missing trays are a frequent cause of damp patches above window heads, so they are fitted as part of the replacement.
  • While the old lintel is out, the brickwork above sits on adjustable steel props with needles or masonry prop heads fixed through the mortar joints. The props stand on boards or spreaders so their load is shared across the ground or floor beneath.

From survey to sign-off in Hanworth

  1. Survey in Hanworth

    We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.

  2. Engineer's design

    A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.

  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. Install and sign-off

    Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.

What does lintel replacement cost in Hanworth?

As a guide, budget £510–£1,540 per lintel including VAT for lintel replacement in Hanworth, 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
Temporary works and propping£190–£640Props, spreaders, needles and sole plates for a typical opening, installed and struck
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 Hanworth

Structural openings in English homes need building regulations approval before work starts. The local council's building control team can deal with it, or you can use a registered building control approver. Either way the steel is inspected before it is covered, and a completion certificate is issued at the end. Keep it safe for when you sell.

If the beam bears into a wall you share with a neighbour, the Party Wall etc. Act 1996 applies, and a party structure notice must be served at least two months before that work starts. We arrange this through a party wall surveyor.

Building rules in England

Lintel replacement near Hanworth

Questions about lintel replacement in Hanworth

Do you also work near Hanworth?

Yes. We also cover nearby towns including Hampton, Feltham, Sunbury-on-Thames and Hounslow.

Do you cover Hanworth for lintel replacement?

Yes. We carry out lintel replacement in Hanworth and the TW1, TW2, TW3, TW4 and TW11 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

Can a lintel be replaced without removing the window?

Often, yes. The brickwork above is propped, the old lintel is taken out and the new one fitted while the frame stays in place under protection. If the frame has been carrying weight because the old lintel sagged, it may need easing or adjusting once the new lintel is in.

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.

Is a cracked lintel dangerous?

It can become a problem if left, because the masonry above loses support and cracks tend to widen as it settles. Failure is usually gradual, but if bricks are loose, a frame is distorting or cracks are growing quickly, have it checked promptly and keep people clear of the area.

How much does lintel replacement cost in Hanworth?

As a guide, budget £510–£1,540 per lintel including VAT for lintel replacement in Hanworth, based on published UK cost guides adjusted for London prices (+28%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.

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.