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

Kitchen-diner knock-throughs · Caernarfon

Kitchen-diner knock-throughs in Caernarfon

Steelwork, approvals and making good for kitchen-diner knock-throughs in Caernarfon and nearby.

  • Survey, design and installation in one
  • Covering LL55
  • Inspected before it is covered

Free survey in Caernarfon

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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

What kitchen-diner knock-throughs involve in Caernarfon

Need kitchen-diner knock-throughs in Caernarfon? We also cover the surrounding towns and villages in Gwynedd. We survey the property, arrange the engineer's design, deal with Cyngor Gwynedd, fit the steel and make good, all under one quote for LL55 addresses.

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.

What to expect

  • 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.
  • The structural work comes first, then first-fix electrics and plumbing, plastering, flooring and finally the kitchen fit. Booking the kitchen fitter only once the beam has passed inspection and the plaster has dried avoids units going onto damp walls.
  • 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.
  • Settle the kitchen layout before the steel is designed. If the engineer needs a column or a deeper beam, it is far easier to plan an island, tall units or the hob position around it at drawing stage than after the units are ordered.
  • Sinks and dishwashers usually sit on an outside wall, but supply pipes and waste runs sometimes cross the internal wall. Moving the sink to an island means planning a waste route with enough fall under the floor, which affects how the floor is prepared.

Four stages, one team

  1. Look and measure

    We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.

  2. Design and price

    Calculations come back from the engineer and we confirm your fixed written price, line by line.

  3. Building control

    We submit the application or notice to Cyngor Gwynedd under the Building Regulations as they apply in Wales, before work starts.

  4. Fit, inspect, finish

    The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.

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

As a guide, budget £2,300–£5,450 including VAT for kitchen-diner knock-through in Caernarfon, 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)
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
Fire protection to a steel beam£140–£550 per beamFire-rated board boxing or an intumescent coating system as specified
Steel column or post£460–£1,360 per columnColumn supplied and fitted with base and cap plates on a pad foundation

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

Approvals in Caernarfon

Removing a load-bearing wall in Wales needs approval under the Welsh building regulations before work starts. For Caernarfon the application goes to Cyngor Gwynedd or a registered building control approver, with the engineer's calculations, and a completion certificate follows the final inspection.

The Party Wall etc. Act 1996 applies in Wales as well as England, so a beam bearing into a shared wall needs a party structure notice at least two months before work starts. We arrange notices through a party wall surveyor.

Building rules in Wales

Kitchen-diner knock-throughs near Caernarfon

Local questions answered

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

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.

Do you also work near Caernarfon?

Yes. We also cover nearby towns including Menai Bridge, Llangefni, Bangor and Porthmadog.

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.

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.

Can I knock my kitchen and dining room into one?

In most houses, yes. The wall can be removed even if it is load-bearing, as long as a steel beam designed by a structural engineer takes over the load and building control approves the work. The main things to check early are what the wall carries, where services run, and whether the layout still works around any column.

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.