Steel BeamInstallers
Hallway doorway widened into a larger opening with a new lintel before plastering

Wider doorways & openings · Southall

Wider doorways & openings in Southall

Wider doorways & openings in Southall, from free survey to completion certificate.

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

Free survey in Southall

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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 wider doorways & openings service in Southall

For homes in Southall and the TW5, UB1, UB2, UB3 and UB4 districts, we handle wider doorways & openings from survey to sign-off. We also cover the surrounding towns and villages in London. The beam is sized by a structural engineer and inspected before it is boxed in.

Not every layout change needs a whole wall out. Widening a cramped doorway, adding a second door into a room or forming a wide opening between hall and living room can change how a home flows while keeping most of the wall, along with its storage space and furniture positions.

Key points for your project

  • Each side of the new opening needs enough solid wall for the lintel or beam to sit on. If the opening runs close to a corner, another doorway or a chimney breast, there may not be enough masonry, and a column or padstone may be required.
  • For a modest increase in width, a lintel may be all that is needed, while a wider opening carrying a floor or wall usually needs steel. The engineer chooses the type and size from the actual loads, never from the opening width alone.
  • Widening a single doorway in a load-bearing wall usually takes one to two days for the structural work. The plaster then needs time to dry before the door linings are decorated or a new door is hung.
  • In older houses, a doorway may already have a timber lintel that has rotted or a brick arch that is hard to extend. These are replaced rather than added to, and the engineer allows for soft lime mortar and any cracking found once the wall is opened.
  • Widening doorways is a frequent adaptation for wheelchair users and people using walking frames. Where a council grant or adaptation scheme is helping to pay, check its requirements for clear opening width before the opening is designed.

What happens, step by step

  1. Free visit

    A short visit to Southall to see the job, agree what you want and check the bearings, floors and services that affect the design.

  2. Calculations

    The engineer's calculations and a simple drawing are prepared for your opening and shared with you before anything is ordered.

  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. Steel in, made good

    On site we prop, open up, fit and pack the steel, then fire protect, box in and plaster once the inspection is done.

How much should I budget in Southall?

As a guide, budget £1,300–£3,200 including VAT for widening an internal doorway in Southall, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Widening an internal doorway£1,300–£3,200Opening widened with a new lintel or short beam, approval where structural, and making good
Lintel replacement£510–£1,540 per lintelPropping, removing the old lintel, new lintel set on beds and brickwork made good
Plastering and making good£380–£1,540Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up
Building control fees£320–£830Building notice or full plans fee and inspections; varies by council or approver

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

Building rules for Southall

For Southall, building control is provided by the local council's building control team, or by a registered building control approver if preferred. We send them the engineer's calculations with a building notice or full plans application and book the inspections. Work done without approval can cause problems at sale and is far dearer to put right later.

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

Wider doorways & openings near Southall

Wider doorways & openings in Southall: your questions

How much do wider doorways & openings cost in Southall?

As a guide, budget £1,300–£3,200 including VAT for widening an internal doorway in Southall, 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.

Can I stay at home while the work is done in Southall?

Usually, yes. The work area is screened and floors are protected. The rooms either side of the opening are out of action for a few days, and there is some noise and dust while the masonry comes out.

Is a lintel or a steel beam needed for a wider door?

It depends on the loads. A lintel can be enough for a modest widening under light loads, while an opening carrying floor joists or a wall above usually needs steel. The engineer decides from the actual loads and span rather than the width alone, and we fit whichever is specified.

What if there is a radiator or switch where the new opening goes?

It gets moved before the opening is cut. Radiators and pipework are relocated by a heating engineer, and switches and sockets by an electrician, with notifiable electrical work in England meeting Part P. These items are priced separately in the quote, so you can see what each one adds.

Do I need building regulations to widen an internal door?

Only if the wall is load-bearing or the change affects fire safety, such as the escape route from upstairs. Widening an opening in a non-structural stud partition usually does not need structural approval. We confirm which applies at the survey, and handle the building control application or notice where it is needed.

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.