Steel BeamInstallers
Finished open-plan kitchen diner with a plastered boxed beam across the ceiling

Kitchen-diner knock-throughs · Portishead

Kitchen-diner knock-throughs in Portishead

Kitchen-diner knock-throughs for homes in BS20, designed by a structural engineer.

  • Survey, design and installation in one
  • Covering BS20
  • Inspected before it is covered

Free survey in Portishead

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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 kitchen-diner knock-throughs service in Portishead

We carry out kitchen-diner knock-throughs in Portishead, covering the BS20 postcode district. The wider Somerset area is covered as well. The job starts with a free survey visit so the engineer's calculations are based on your actual walls, floors and loads.

The wall between a kitchen and dining room is often a structural one, especially in semi-detached and terraced houses where it carries the floor joists for the bedrooms above. Opening it up gives the sociable, open-plan space most families want, but the kitchen brings extra things to plan: pipes, cables, an extractor, and a layout that has to work around the new steel.

Things to plan for

  • Older kitchens can hide asbestos in textured ceiling coatings, floor tiles, boxing around pipes or the backing of old heaters. In buildings from before 2000 it must be identified before the fabric is disturbed, so a survey of the affected area is arranged first.
  • A gas hob or cooker supply often runs along or through the wall being removed. By law, any work on gas pipework must be carried out by a Gas Safe registered engineer, so the pipe is capped or rerouted by one before the wall comes down.
  • Cooker hood ducting that currently runs out through the wall may need a new route once the wall goes. Ducting can often be run in the ceiling void alongside the beam, but the beam's position and depth need to be known first.
  • While the wall is out you will usually be without a working kitchen for several days. Many households set up a kettle, microwave and fridge in another room for that period and plan simple meals that need little cooking.
  • The structural price depends mainly on the span, what sits above and how the beam ends are supported. Kitchen-related extras, such as moving gas, relocating a soil pipe or rerouting ducting, are listed as separate items so you can see what each one adds.

Four stages, one team

  1. Free visit

    A short visit to Portishead 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 North Somerset 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.

Guide prices for kitchen-diner knock-throughs in Portishead

As a guide, budget £2,600–£6,200 including VAT for kitchen-diner knock-through in Portishead, based on published UK cost guides adjusted for prices in the South West (+3%).

JobTypical guide rangeWhat it usually covers
Kitchen-diner knock-through£2,600–£6,200Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra)
Load-bearing wall removal with steel beam£2,050–£5,150Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good
Plastering and making good£310–£1,240Boxing the beam, bead and skim, reveals, floor infill where the wall stood and tidy-up
Structural calculations for a beam£260–£770Site measure or photos, beam and padstone design and calculations for building control

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

Approvals in Portishead

For Portishead, building control is provided by North Somerset Council, 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.

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

Kitchen-diner knock-throughs near Portishead

Local questions answered

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

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.

Can you work on older or listed homes in Portishead?

Yes. Older homes often have lime mortar, timber lintels or shallow footings, which the engineer allows for. Listed buildings need listed building consent for internal structural changes as well as building regulations approval, and that must be in place first.

Can the steel beam be hidden in the ceiling?

Yes, a flush beam can be set into the ceiling void so there is no step between the kitchen and dining ceilings. It needs enough joist depth and more labour to connect the joists to the steel, so it costs more than a downstand. The engineer confirms whether it is possible in your house.

How long will I be without a kitchen?

The structural work itself usually takes three to six working days, and the kitchen is out of action during that time. After that come plastering, drying, flooring and the kitchen fit, so the overall period without a finished kitchen depends mostly on your fitter's programme and when the units are delivered.

Should I do the knock-through before or after fitting a new kitchen?

Before. The steel, any column, the floor levelling and the plastering all need to be finished first, so the kitchen fitter works in a dry, square room with services already in position. Fitting units and then taking out a wall risks damage and rework, and the beam position can affect where wall units go.

Who approves kitchen-diner knock-throughs in Portishead?

Structural work in Portishead needs a building notice or full plans application to North Somerset 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.