Steel BeamInstallers
Victorian through-lounge with a boxed beam where the dividing wall used to be

Through-lounge knock-throughs · Barnstaple

Through-lounge knock-throughs in Barnstaple

Through-lounge knock-throughs in Barnstaple, from free survey to completion certificate.

  • Survey, design and installation in one
  • Covering EX31, EX32
  • Inspected before it is covered

Free survey in Barnstaple

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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 through-lounge knock-throughs service in Barnstaple

For homes in Barnstaple and the EX31 and EX32 districts, we handle through-lounge knock-throughs from survey to sign-off. The wider Devon area is covered as well. The beam is sized by a structural engineer and inspected before it is boxed in.

Many period terraces and semis were built with a front parlour and a back sitting room divided by a solid brick wall. Opening them into one through-lounge brings light from both ends of the house, but that wall commonly carries the floor joists, the wall between the bedrooms above and sometimes part of the roof load too.

Key points for your project

  • The width of the opening, whether the beam bears into a party wall, and how much period detail has to be restored all affect the price. Lath and plaster repairs, cornice matching and floorboard work are priced as separate lines in the quote.
  • Minor hairline cracks can appear in plaster upstairs as the structure takes up the new support. This is common after a knock-through and is usually filled at decoration stage, but wider or growing cracks should be reported so they can be checked.
  • Radiators, pipe runs and sockets on the dividing wall need relocating. Older houses sometimes have heating pipes running under the floor along the wall line, so these are traced and moved by a heating engineer before the wall comes down.
  • Many owners leave short nibs of wall at each end of the opening rather than going fully wall to wall. Nibs can give the beam a bearing, line up with the chimney breasts and keep the feel of two linked rooms, but the engineer decides whether they are adequate.
  • Period ceilings are often lath and plaster, which can crack or sag when the wall below is disturbed. Props are set to spread load gently, and damaged areas are repaired with lime plaster or overboarded, depending on the condition and your preference.

How the job runs in Barnstaple

  1. Free visit

    A short visit to Barnstaple 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.

What do through-lounge knock-throughs cost in Barnstaple?

As a guide, budget £2,600–£5,650 including VAT for through-lounge knock-through in Barnstaple, based on published UK cost guides adjusted for prices in the South West (+3%).

JobTypical guide rangeWhat it usually covers
Through-lounge knock-through£2,600–£5,650Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill
Plastering and making good£310–£1,240Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up
Chimney breast removal (ground floor)£1,550–£3,100Ground-floor breast removed, steel to support the breast above, building control and making good
Temporary works and propping£150–£520Props, spreaders, needles and sole plates for a typical opening, installed and struck

Figures include our approximate regional adjustment for prices in the South West (+3%) and are rounded. How these figures are worked out.

Building control and neighbours in Barnstaple

For Barnstaple, 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

Through-lounge knock-throughs near Barnstaple

Local questions answered

Do you also work near Barnstaple?

Yes. We also cover nearby towns including Bideford.

How soon can through-lounge knock-throughs start in Barnstaple?

Start dates depend on the engineer's calculations, the building control approval and, where needed, party wall notice periods. We give you a realistic timetable after the survey and keep you updated as each approval comes through.

What happens to the floor where the wall was?

A strip of exposed joists, or a footing in a solid floor, is left where the wall stood. Timber floors are patched with matching or reclaimed boards, and solid floors are filled and levelled. If you are fitting a new floor across both rooms, it is simply prepared level for the new finish.

How wide can a through-lounge opening be?

That depends on what the wall carries and how the beam ends can be supported, and the structural engineer sets it. Many owners go nearly full width, keeping short nibs at each end, while others choose a narrower opening to keep two distinct rooms. Wider spans need heavier steel and sometimes columns.

Can I keep the cornicing when the wall comes down?

Usually yes. The existing cornice in each room is protected during the work, and a matching profile can be run or cast to bridge the opening once the beam is boxed and plastered. How closely it matches depends on the original design and its condition, which we check at the survey visit.

Do you cover Barnstaple for through-lounge knock-throughs?

Yes. We carry out through-lounge knock-throughs in Barnstaple and the EX31 and EX32 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

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.