Steel BeamInstallers
Loft conversion with steel beams on padstones and new floor joists

Loft conversion steels · Portrush

Loft conversion steels in Portrush

Loft conversion steels for homes in BT55, BT56, designed by a structural engineer.

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

Free survey in Portrush

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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

Loft conversion steels in Portrush: how it works

For homes in Portrush and the BT55 and BT56 districts, we handle loft conversion steels from survey to sign-off. Our coverage runs across Causeway Coast and Glens, so nearby villages are included too. The beam is sized by a structural engineer and inspected before it is boxed in.

We fit the steel package for loft conversions, either as part of the full project or alongside your loft builder. That means the engineer's design, building control, getting long steels into a roof space safely, bedding them on padstones and packing them before the new floor and dormer go on.

Things to plan for

  • The steel stage of a loft conversion usually takes a few working days and comes early, before floor joists, dormer framing and insulation. Keep the steel calculations with the completion certificate, as both are asked for when the house is sold.
  • Steels supporting a loft floor commonly need 30-minute fire resistance in a typical house. That is usually achieved with fire-rated plasterboard below and around the steel, to the specification agreed with building control.
  • Traditional cut roofs rely on purlins and struts running down to internal walls. A steel beam can take over that job so the struts come out, freeing up floor and headroom, but the change has to be designed and propped carefully.
  • Water tanks, cables, aerial leads and bathroom extract ducts often sit exactly where the steel needs to go. They are moved before the beams arrive, and old cold water tanks are frequently removed as part of the wider loft project.
  • Ceiling joists in most houses are too shallow to carry people, furniture and a bathroom. Rather than loading them, steel beams span between the walls and new, deeper floor joists hang from them, sitting just above the old ceiling.

How the job runs in Portrush

  1. Survey in Portrush

    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

    A full plans application or building notice goes to Causeway Coast and Glens Borough Council under the Building Regulations (Northern Ireland) 2012 before work begins.

  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.

How much should I budget in Portrush?

As a guide, budget £2,150–£5,150 including VAT for loft conversion steels in Portrush, based on published UK cost guides adjusted for prices in Northern Ireland (-14%).

JobTypical guide rangeWhat it usually covers
Loft conversion steels£2,150–£5,150Supply and fit of floor and ridge steels on padstones, including lifting into the roof space
Structural calculations for a beam£220–£640Site measure or photos, beam and padstone design and calculations for building control
Temporary works and propping£130–£430Props, spreaders, needles and sole plates for a typical opening, installed and struck
RSJ supply and fit (single beam)£690–£2,150 per beamBeam supplied, delivered, lifted and packed on padstones, with propping (calculations and approval priced separately)

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

Building rules for Portrush

In Northern Ireland, structural work comes under the Building Regulations (Northern Ireland) 2012 and is approved by the local council's building control. For Portrush that is Causeway Coast and Glens Borough Council. We submit a full plans application or building notice before work starts and book the inspections.

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

Loft conversion steels near Portrush

Local questions answered

Who approves loft conversion steels in Portrush?

Structural work in Portrush needs a full plans application or building notice to Causeway Coast and Glens Borough Council. We prepare and submit it with the structural engineer's calculations and arrange the inspections, so the completion paperwork follows the job.

What happens at the survey visit in Portrush?

We look at the wall, the floor and ceiling either side and what sits above, measure the opening you want, and note cables, pipes and access for the steel. It usually takes under an hour and there is no charge.

How do you get steel beams into a loft?

It depends on access. Beams are often passed in through an opening made in the roof or a gable window, or brought up in shorter sections and bolted together in the loft where the engineer's design allows. For long or heavy steels a hoist or crane may be used, planned in advance.

How long does it take to install loft steels?

The main steels for a typical loft conversion usually go in over two to five working days. That covers cutting pockets, bedding padstones, getting the steel in and packing it. The timing depends heavily on access and how many beams the design calls for.

Do all loft conversions need steel beams?

Most do, but not all. Steels are usually needed to carry the new floor, replace purlins and struts, or support the roof around a dormer. Some smaller conversions use deeper timber joists or engineered timber instead. A structural engineer decides what the roof and walls need after a survey.

Do you also work near Portrush?

Yes. We also cover nearby towns including Coleraine, Ballymoney, Ballycastle and Limavady.

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.