Steel BeamInstallers
Corroded old steel beam exposed for replacement, with props and a new beam on trestles

Steel beam replacement & repair · Llandudno

Steel beam replacement & repair in Llandudno

Steel beam replacement & repair in Llandudno, from free survey to completion certificate.

  • Survey, design and installation in one
  • Covering LL30, LL31
  • Inspected before it is covered

Free survey in Llandudno

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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

About our steel beam replacement & repair service in Llandudno

If you live in Llandudno, steel beam replacement & repair can usually be planned and priced after a single survey visit. We also cover the surrounding towns and villages in Conwy. We cover LL30 and LL31, and we fix the price in writing once the layout and scope are agreed.

We start with a survey visit, arrange an engineer's inspection, then carry out whatever repair the engineer specifies, from new bearings to strengthening or full replacement. We handle building control and the temporary propping, and you get an itemised written quote before anything starts.

Things to plan for

  • Older beams were often left with no fire protection or boxed in ordinary materials. When a beam is repaired or replaced, the fire protection is brought up to what the engineer and building control specify, commonly fire-rated plasterboard or intumescent paint.
  • Signs that a beam is struggling include diagonal cracks running up from its ends, a visible dip along its length, doors above that start binding, and rust staining through paint or plaster. Any one of these is worth an engineer's look.
  • Shop beams over old shopfronts are a common repair job. They often carry the whole front wall of the upper floors, sit behind fascias where rain gets in, and may have been cut or altered when shopfronts were replaced in the past.
  • Missing paperwork for an old beam often surfaces when a house is being sold and the buyer's surveyor asks for calculations. An engineer's inspection, any remedial work and a regularisation or completion certificate together answer those questions.
  • A repair only lasts if the cause is dealt with too. A leaking roof, blocked gutter or bridged damp-proof course that rusted the beam needs fixing first, otherwise new protective coatings will break down in the same way.

Four stages, one team

  1. Survey in Llandudno

    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.

Guide prices for steel beam replacement & repair in Llandudno

As a guide, budget £1,800–£5,000 including VAT for steel beam replacement in Llandudno, based on published UK cost guides adjusted for prices in Wales (-9%).

JobTypical guide rangeWhat it usually covers
Steel beam replacement£1,800–£5,000Propping, removing the failed beam, new steel on proper bearings, approval and making good
RSJ supply and fit (single beam)£730–£2,280 per beamBeam supplied, delivered, lifted and packed on padstones, with propping (calculations and approval priced separately)
Temporary works and propping£140–£460Props, spreaders, needles and sole plates for a typical opening, installed and struck
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.

Approvals in Llandudno

In Wales, structural alterations come under the Building Regulations 2010 as they apply in Wales. Conwy County Borough Council handles building control for Llandudno. 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.

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

Steel beam replacement & repair near Llandudno

Steel beam replacement & repair in Llandudno: your questions

Do I need a party wall agreement for steel beam replacement & repair in Llandudno?

Yes, if the beam bears into a shared wall: the Party Wall etc. Act 1996 applies in England and Wales, and a party structure notice must be served at least two months before that work starts. We arrange it through a party wall surveyor.

How soon can steel beam replacement & repair start in Llandudno?

Start dates depend on the engineer's calculations, the building control approval and, where needed, party wall notice periods. We give you a realistic timetable after the survey and keep you updated as each approval comes through.

Can an old shop beam be replaced while the flat above is occupied?

Often, yes, with careful planning. The front wall and floors above are propped from inside the shop, and sometimes from outside, before the old beam is cut out. Occupants can often stay in if the engineer is satisfied with the propping, though there will be noise for a few days. Where the flat is separately owned, access and consents need agreeing in advance.

Is it cheaper to repair or replace a steel beam?

Repair is often less disruptive and can cost less, but only when the engineer confirms it will do the job. Heavily corroded or badly undersized beams may need replacing anyway, and plating in awkward positions is not always cheaper. We price the option the engineer specifies in an itemised written quote.

What does it mean to plate a steel beam?

Plating means fixing extra steel plates to the beam, usually along the flanges, to increase its strength or stiffness without taking it out. The plates are bolted or welded according to the engineer's design. It suits some beams well, but not all, and the engineer checks the connections and bearings before specifying it.

What happens at the survey visit in Llandudno?

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.

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.