Gwynedd & Anglesey · Wales

Curtain Walling in Gwynedd & Anglesey

Our glaziers install aluminium curtain walling and full-height glazed screens in Gwynedd & Anglesey, coordinating with other trades and sealing every interface with the structure.

Guide from £455 per m²
5 towns covered
Postcode areas LL

Gwynedd & Anglesey: aluminium curtain wall

The look of the facade depends on how the glass is held. Capped systems clamp the glass with pressure plates hidden behind a visible cover cap, while structural silicone glazing bonds the glass to carrier frames so the outside reads as a smooth, almost frameless surface.

Building regulations require external walls to limit the spread of fire, so curtain walling design has to consider how its materials react to fire and how fire could pass between floors. The requirements depend on the building's height and use, and differ between the UK nations.

A unitised system arrives as storey-height panels assembled and glazed in a factory, which are lifted into place and interlocked. Fewer joints are made on site, which can reduce the risk of air and water leaks from site workmanship, but cranage and lead times need careful planning.

Wind load on a facade rises with height, exposure and building shape, and it decides the mullion size, bracket design and glass thickness. Calculations for the specific site are part of the design, so a system suited to a sheltered ground-floor screen may not suit an exposed upper storey.

Glass curtain wall on an office building against a blue sky

Towns we cover for curtain walling in Gwynedd & Anglesey

Choose your town for local details, nearby areas and the postcode districts we cover.

What applies in Gwynedd & Anglesey

In Wales, Approved Document N covers safety glazing: safety glass is needed in and around doors and in low-level glazing where people could walk into it.

Like-for-like replacement windows on houses in Wales are usually permitted development, but flats, listed buildings and conservation areas can need permission. Check with the local planning authority.

Gwynedd & Anglesey has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. Facades near the sea face salt-laden wind and driving rain, which attack frame finishes and stress seals. Suitable coating specifications, regular washing, gasket checks and higher design wind loads for exposed sites all matter for curtain walling there.

Commercial buildings on open rural or upland sites can face high wind exposure and driving rain, which affect frame sizes, glass thickness and sealing details. Longer delivery routes for large glass units also need planning in advance.

Guide prices

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical job	Guide price inc VAT
Curtain walling, per m² (stick system)	£455 – £795
Curtain walling, per m² (unitised)	£545 – £955

Choosing your curtain walling

Solar control glass

Coated glass that limits solar heat gain on sunny elevations while keeping good daylight, reducing overheating and glare inside.

Capped system

Glass clamped by pressure plates behind a visible external cap, available in different profiles and colours to emphasise the grid.

Stick curtain wall

Mullions and transoms assembled on site with glass and panels fitted afterwards, suited to low-rise buildings, entrances and ground-floor screens.

Opaque spandrel panels

Insulated or back-painted glass panels that hide floor slabs, ceiling voids and services while keeping the facade's appearance consistent.

Curtain Walling in Gwynedd & Anglesey: questions

What affects the cost of curtain walling?

The main cost drivers are facade area, system type, glass specification, infill panels, opening vents, building height and access equipment such as scaffolding, hoists or cranes. Structural silicone glazing, unitised panels, fire-resisting sections and testing requirements add cost. See the guide prices for typical ranges, and your written quote fixes the price for the specification.

How long does a curtain walling project take?

Timescales depend on size and complexity. Design, approvals and fabrication of framing and glass usually take several weeks to a few months before installation starts. Installation then depends on the facade area, access and sequencing with other trades. Replacing individual units is much quicker once the glass is made. Your written quote sets out the expected programme.

Can a single broken glass unit in a curtain wall be replaced?

Usually, yes. In capped systems the cap and pressure plate are removed to release the glass, and a new unit is fitted and resealed. Structurally bonded glass needs the new unit bonding to its carrier, which takes more preparation. Height and access drive much of the work, so we survey the unit and access before quoting.

What glass is used in curtain walling?

Curtain walling normally uses sealed double or triple glazed units, with toughened or laminated panes chosen for safety, security and wind load. Coatings control heat loss and solar gain, and heat-soaked toughened glass is often specified for upper levels. Where fire resistance is needed, a tested fire-resistant glazing system is used instead of standard glass.

Which parts of Gwynedd & Anglesey do you cover for curtain walling?

We cover the whole of Gwynedd & Anglesey, including Bangor (Gwynedd), Holyhead, Caernarfon, Pwllheli and Dolgellau, and postcode areas LL. Building rules for curtain walling here follow the regulations for Wales. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.

Other glazing services in Gwynedd & Anglesey

All glazing in Gwynedd & Anglesey · Curtain Walling & Glazed Screens across the UK

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