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

Through-lounge knock-throughs · Leicester

Through-lounge knock-throughs in Leicester

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

  • Price fixed in writing once scope is agreed
  • Building control arranged
  • Temporary works and making good included

Free survey in Leicester

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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

Through-lounge knock-throughs in Leicester: how it works

For homes in Leicester and the LE1, LE2, LE3, LE4 and LE5 districts, we handle through-lounge knock-throughs from survey to sign-off. We also cover the surrounding towns and villages in Leicestershire. 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.

Worth knowing before you start

  • Cutting a pocket into a party wall for a beam end is notifiable work under the Party Wall etc. Act 1996 in England and Wales. Your neighbour can agree or dissent, and a dissent means party wall surveyors must set out how the work is done before it starts.
  • Victorian brickwork is usually laid in soft lime mortar and the internal walls may be only one brick thick. The engineer allows for this when designing the bearings, and padstones are often used to spread the beam's load over the weaker masonry.
  • In most terraced houses the wall between the front and back rooms runs across the house and carries the floor above, plus the wall between the front and back bedrooms. It is normally load-bearing, but the engineer still checks before any design is drawn up.
  • The steel commonly needs fire protection to meet building regulations, usually by boxing it in fire-rated plasterboard and skimming it. In period rooms the box can be finished with a matching cornice so it reads as part of the original ceiling.
  • 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.

What happens, step by step

  1. Free visit

    A short visit to Leicester 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 Leicester City Council, 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 Leicester?

As a guide, budget £2,450–£5,400 including VAT for through-lounge knock-through in Leicester, based on published UK cost guides adjusted for prices in the East Midlands (-2%).

JobTypical guide rangeWhat it usually covers
Through-lounge knock-through£2,450–£5,400Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill
Load-bearing wall removal with steel beam£1,950–£4,900Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good
Chimney breast removal (ground floor)£1,450–£2,950Ground-floor breast removed, steel to support the breast above, building control and making good
Kitchen-diner knock-through£2,450–£5,900Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra)

Figures include our approximate regional adjustment for prices in the East Midlands (-2%) and are rounded. How these figures are worked out.

Approvals in Leicester

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 Leicester City Council 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

Through-lounge knock-throughs near Leicester

Through-lounge knock-throughs in Leicester: your questions

What happens at the survey visit in Leicester?

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.

Do you also work near Leicester?

Yes. We also cover nearby towns including Oadby, Wigston Magna, Loughborough and Coalville.

How long does a through-lounge knock-through take?

The structural part usually takes three to five working days, covering needling, propping, removing the wall, fitting the steel and packing it. Party wall notice periods, plastering, period repairs and drying time sit around that, so the overall timeline depends mostly on notices and the finishing work.

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.

Is the wall between two reception rooms load-bearing?

In most period terraces and semis it is, because it carries the floor joists and the wall between the bedrooms above. Some later houses have lighter partitions in this position, so the only way to be sure is an engineer's inspection. We arrange this during the survey and design stage.

Who approves through-lounge knock-throughs in Leicester?

Structural work in Leicester needs a building notice or full plans application to Leicester City Council or a registered building control approver. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.

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.