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

Through-lounge knock-throughs · Stratford

Through-lounge knock-throughs in Stratford

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

  • Survey, design and installation in one
  • Covering E3, E7, E9
  • Inspected before it is covered

Free survey in Stratford

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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 through-lounge knock-throughs in Stratford

Through-lounge knock-throughs in Stratford are planned around the house, not a standard kit. We also cover the surrounding towns and villages in London. We visit, measure and check what the wall carries, then arrange calculations and building control approval before any steel is ordered.

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

  • With the wall gone, the floorboards on each side may run in different directions or sit at slightly different heights. Matching reclaimed boards can be fitted across the old wall line, or the floor can be levelled for a new continuous finish.
  • 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.
  • Ornate cornicing often runs around both rooms and stops at the wall being removed. Where practical, the run is extended across the opening by matching the profile, either run in place or cast, so the joined room looks original rather than patched.
  • 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.
  • 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.

What happens, step by step

  1. Free visit

    A short visit to Stratford 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 Stratford?

As a guide, budget £3,200–£7,050 including VAT for through-lounge knock-through in Stratford, based on published UK cost guides adjusted for London prices (+28%).

JobTypical guide rangeWhat it usually covers
Through-lounge knock-through£3,200–£7,050Wall between front and back reception rooms, steel beam, approvals, plastering and floor infill
Chimney breast removal (ground floor)£1,900–£3,850Ground-floor breast removed, steel to support the breast above, building control and making good
Load-bearing wall removal with steel beam£2,550–£6,400Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good
Kitchen-diner knock-through£3,200–£7,700Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra)

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

Building rules for Stratford

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

Through-lounge knock-throughs near Stratford

Through-lounge knock-throughs in Stratford: your questions

What happens at the survey visit in Stratford?

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 cover Stratford for through-lounge knock-throughs?

Yes. We carry out through-lounge knock-throughs in Stratford and the E3, E7, E9, E11 and E13 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

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.

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.

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.

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

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.

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.