Structural alterations in County Antrim

Covering County Antrim

Our structural alterations service in County Antrim covers Belfast, Lisburn, Newtownabbey and Carrickfergus and more.

Homes in County Antrim

Northern Ireland has a high proportion of detached houses and bungalows outside the cities, which often suit side extensions, rear extensions and upward extensions.

What do you get with a structural alteration?

We arrange the structural calculations, support the floors and roof above with temporary props while the wall comes out, install the steel on padstones, then encase it for fire protection and make good. Chimney breast removals and new openings in external walls follow the same process.

Structural engineer’s design and calculations
Fire protection and plaster encasement
Making good floors, walls and ceilings

How much should I budget for a structural alteration?

Typical ranges for structural alterations. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Structural alterations	Guide price incl. VAT
Single load-bearing wall removal with steel	£3,000 to £7,500
Chimney breast removal with support	£1,800 to £4,500
Multiple walls or full open-plan remodel	£8,000 to £20,000

Do you need permission for a structural alteration in County Antrim?

In Northern Ireland the council handles both planning and building control. Permitted development rules are set by the Planning (General Permitted Development) Order (Northern Ireland) 2015, and there is no party wall act, so we agree access and protection with neighbours in writing.

Internal alterations rarely need planning permission in Northern Ireland, but structural work needs building control approval.

What can affect a structural alteration?

The beam size can mean a downstand in the ceiling unless it is set flush within the floor.
Pipes and cables in the wall need rerouting first.

From first call to completion

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Your questions answered

How much does it cost to remove a load-bearing wall?

Usually £3,000 to £7,500 including VAT for a single wall with a steel beam, calculations and making good.

How long does it take?

The structural work is usually done in a few days, with one to three weeks including making good.

How do I get a price for structural alterations in County Antrim?

Use the guide price tool for a ballpark figure, then book a visit for a fixed written price for the agreed specification.

Other towns nearby

Learn more about structural alterations, or see every project we cover in County Antrim.