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

Kitchen-diner knock-throughs · Castlereagh

Kitchen-diner knock-throughs in Castlereagh

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

  • Itemised written quote
  • Beam sized by a structural engineer
  • Covering Castlereagh and nearby

Free survey in Castlereagh

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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 Castlereagh: how it works

For homes in Castlereagh and the BT1, BT2, BT4, BT5 and BT6 districts, we handle kitchen-diner knock-throughs from survey to sign-off. We also cover the surrounding towns and villages in Belfast. The beam is sized by a structural engineer and inspected before it is boxed in.

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

  • 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.
  • 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.
  • 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.
  • 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.
  • A flush beam sits up within the depth of the ceiling so the kitchen and dining ceilings run as one flat surface. It suits continuous downlights and long runs of wall units, but each joist has to be connected into the beam, which adds labour.

How the job runs in Castlereagh

  1. Free visit

    A short visit to Castlereagh 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

    A full plans application or building notice goes to Belfast City Council under the Building Regulations (Northern Ireland) 2012 before work begins.

  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 Castlereagh

As a guide, budget £2,150–£5,150 including VAT for kitchen-diner knock-through in Castlereagh, based on published UK cost guides adjusted for prices in Northern Ireland (-14%).

JobTypical guide rangeWhat it usually covers
Kitchen-diner knock-through£2,150–£5,150Internal structural wall between kitchen and dining room, steel beam, approvals and making good (kitchen fitting extra)
Load-bearing wall removal with steel beam£1,700–£4,300Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good
Structural calculations for a beam£220–£640Site measure or photos, beam and padstone design and calculations for building control
Fire protection to a steel beam£130–£520 per beamFire-rated board boxing or an intumescent coating system as specified

Figures include our approximate regional adjustment for prices in Northern Ireland (-14%) and are rounded. How these figures are worked out.

Building control and neighbours in Castlereagh

Removing a load-bearing wall in Northern Ireland needs building control approval from the council. Belfast City Council covers Castlereagh. The engineer's calculations support the application, and a completion certificate is issued after the final inspection.

Northern Ireland has no Party Wall Act, so there is no statutory notice to serve. Where the steel bears into a shared wall, the title deeds and the general law apply, and agreeing the work with your neighbour in writing first is good practice.

Building rules in Northern Ireland

Kitchen-diner knock-throughs near Castlereagh

Kitchen-diner knock-throughs in Castlereagh: your questions

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

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 Castlereagh?

Yes. We also cover nearby towns including Newtownabbey, Lisburn, Newtownards and Carrickfergus.

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.

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.

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 soon can kitchen-diner knock-throughs start in Castlereagh?

Start dates depend on the engineer's calculations, the building control approval and any agreement needed with neighbours. 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.