County Londonderry · Northern Ireland

Curtain Walling in County Londonderry

From capped systems to structural silicone glazing, we can quote for curtain walling in County Londonderry that balances daylight, solar gain and thermal performance.

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

Aluminium curtain wall in County Londonderry: what to know

The price depends on the facade area, the system type, glass specification such as solar control or triple glazing, infill panels, opening vents, building height and access equipment, and design and testing requirements. Replacement units also depend on how the glass is retained. See the guide prices for typical ranges.

Toughened glass can very occasionally break on its own because of nickel sulphide inclusions. Heat soak testing to BS EN 14179 reduces that risk by breaking flawed panes in the factory, and it is often specified for toughened glass high on facades where a breakage is harder to deal with.

The Centre for Window and Cladding Technology publishes the Standard for systemised building envelopes, the recognised UK industry standard for specifying, testing and assessing curtain walling. It draws in BS EN 13830 and the relevant building regulations, and is often referenced in commercial specifications.

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 County Londonderry

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

What applies in County Londonderry

Technical Booklet V covers safety glazing in Northern Ireland, including glass in and around doors and low-level glazing where people could walk into it.

Technical Booklet F1 sets the energy performance that replacement windows, doors and rooflights need to meet in Northern Ireland.

County Londonderry 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

Opaque spandrel panels

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

Capped system

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

Structural silicone glazing

Glass bonded to carrier frames with structural sealant, giving a flush external face with minimal visible framing.

Unitised curtain wall

Factory-assembled, pre-glazed storey-height panels lifted into place, reducing site joints and work at height on taller or tight sites.

Curtain Walling in County Londonderry: questions

Does new curtain walling need building regulations approval?

New curtain walling is building work that has to meet requirements for structure, energy and fire, so it is normally checked by building control as part of the project. The approval route depends on the building and the nation, because England, Wales, Scotland and Northern Ireland have separate systems. Planning permission may also be needed for changes to appearance.

How should curtain walling be maintained?

Curtain walling should be cleaned regularly and inspected at planned intervals. Check that drainage outlets are clear, gaskets have not shrunk or slipped, sealant joints are intact and fixings show no corrosion. Address misted or cracked units early. A simple maintenance schedule kept with the building records helps facilities teams spot problems before they become leaks.

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.

How does curtain walling keep water out?

Curtain walling uses outer gaskets and seals to shed most rain, with drainage routes inside the framing that collect any water getting past them and lead it back outside. Inner seals then provide the air seal. Keeping drainage outlets clear and gaskets in good condition is essential, because blocked drains or shrunk seals can let water into the building.

Which parts of County Londonderry do you cover for curtain walling?

We cover the whole of County Londonderry, including Derry/Londonderry, Coleraine, Limavady, Magherafelt and Portstewart, and postcode areas BT. Building rules for curtain walling here follow the regulations for Northern Ireland. 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 County Londonderry

All glazing in County Londonderry · Curtain Walling & Glazed Screens across the UK

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