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

Kitchen-diner knock-throughs · Conwy

Kitchen-diner knock-throughs in Conwy

Survey, engineer's design and installation of kitchen-diner knock-throughs anywhere in Conwy.

  • Survey, design and installation in one
  • Covering LL22, LL24, LL25, LL26
  • Inspected before it is covered

Free survey in Conwy

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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

Kitchen-diner knock-throughs in Conwy: how it works

Kitchen-diner knock-throughs remove the wall between a kitchen and a dining room to create one open-plan room, with a steel beam carrying whatever the wall supported. The work is planned around the kitchen itself: gas, water, waste and extraction runs, where units and any island will go, and how the ceiling should look once the steel is in.

Looking for kitchen-diner knock-throughs in Conwy? We work in Abergele, Colwyn Bay and Llandudno and the surrounding villages. Our teams handle the calculations, the building control approval, the propping and the steel itself, and leave the opening ready for plastering and decoration.

What to expect

  • 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.
  • 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.
  • 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.
  • If the kitchen also opens onto the hallway, the change can affect the escape route from the bedrooms. Building control checks how people would get out in a fire, and smoke alarms, a fire door or other measures may be required as part of approval.
  • Keep the structural calculations, the building control completion certificate and any gas or electrical certificates together. When the house is sold, the buyer's solicitor will usually ask for evidence that the knock-through was approved and signed off.

How the job runs in Conwy

  1. Survey in Conwy

    We visit, look at the wall and what sits above it, measure the opening and note services, access and how the steel can be brought in.

  2. Engineer's design

    A structural engineer sizes the beam, padstones and any posts, and sets out the temporary support needed while the wall is out.

  3. Building control

    We submit the application or notice to Conwy County Borough Council under the Building Regulations as they apply in Wales, before work starts.

  4. Install and sign-off

    Props go in, the opening is formed, the steel is set and packed, building control inspects it, and we make good.

What do kitchen-diner knock-throughs cost in Conwy?

As a guide, budget £2,300–£5,450 including VAT for kitchen-diner knock-through in Conwy, based on published UK cost guides adjusted for prices in Wales (-9%).

JobTypical guide rangeWhat it usually covers
Kitchen-diner knock-through£2,300–£5,450Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra)
Fire protection to a steel beam£140–£550 per beamFire-rated board boxing or an intumescent coating system as specified
Load-bearing wall removal with steel beam£1,800–£4,550Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good
Structural calculations for a beam£230–£680Site measure or photos, beam and padstone design and calculations for building control

Figures include our approximate regional adjustment for prices in Wales (-9%) and are rounded. How these figures are worked out.

Building control and neighbours in Conwy

In Wales, structural alterations come under the Building Regulations 2010 as they apply in Wales. Conwy County Borough Council handles building control for Conwy. For work started or approved from 1 July 2026, the Welsh system uses an application to building control, dutyholders appointed in writing, a commencement notice before work starts and a compliance statement at the end.

Where the steel bears into a wall shared with next door, notice must be served under the Party Wall etc. Act 1996. If your neighbour dissents, surveyors agree how the work is done before it starts.

Building rules in Wales

Kitchen-diner knock-throughs by town

Questions about kitchen-diner knock-throughs in Conwy

Which towns in Conwy do you cover?

We cover towns including Colwyn Bay, Llandudno and Abergele, plus the villages and smaller towns around them.

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

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.

Who moves the gas pipe for my cooker?

A Gas Safe registered engineer, because work on gas pipework must legally be done by one. If the pipe runs in or near the wall being removed, it is capped or rerouted before demolition starts and reconnected once the new layout is in place. We build this into the programme so it is not left to chance.

Do I need permission from my landlord or freeholder to open up a kitchen?

If you own a leasehold flat, usually yes. The lease will normally require the freeholder's or landlord's written consent for structural alterations, so get that before any work is booked. Freehold houses do not need this, and planning permission is not normally needed for internal changes unless the building is listed.

Is the wall between my kitchen and dining room load-bearing?

It often is, particularly in older semis and terraces where it supports the bedroom floor joists. The clearest signs are joists bearing on it from above and a wall in the same position upstairs, but only an engineer's site check confirms it. We arrange that check as part of the survey and design stage.

Can I have a kitchen island where the wall used to be?

Often you can, but it depends on whether the engineer needs a column and where the beam ends bear. If an island is part of the plan, tell us at the survey so the steel can be designed around it. Plumbing or power to an island also needs a route under the floor.

How much do kitchen-diner knock-throughs cost in Conwy?

As a guide, budget £2,300–£5,450 including VAT for kitchen-diner knock-through in Conwy, based on published UK cost guides adjusted for prices in Wales (-9%). 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.

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.