County Londonderry · Northern Ireland

uPVC Windows in County Londonderry

Want warmer, quieter rooms in County Londonderry? New uPVC windows with modern double or triple glazed units can cut draughts and outside noise compared with older frames.

Guide from £565
5 towns covered
Postcode areas BT

About white uPVC windows in County Londonderry

uPVC no longer means white only. Frames can be foiled in woodgrain or solid colours such as grey, black or cream, often outside only with white inside. Foils are bonded at the factory and should be cleaned with a soft cloth and mild detergent, because abrasive pads and solvents mark the surface.

The price of uPVC windows depends mainly on size, the number of opening sashes, frame colour, glass specification and hardware. Bay windows, openings that need a tower or scaffold, and difficult removal of old frames add labour. See the guide prices for typical ranges; your written quote fixes the exact figure.

uPVC frames need washing a few times a year with warm soapy water and a drop of light oil on hinges and locking points. Drainage slots along the bottom of the outer frame let rainwater escape, so keep them clear of dirt and leaves to stop water collecting in the cill.

Bay windows need extra care. Some older bays carry load from the wall or roof above, so the glazier checks the support before removal and may fit bay poles or ask for structural advice. Replacing a window in the same opening is different from widening it, which needs a new lintel.

Semi-detached house with white uPVC windows and bay windows

Towns we cover for uPVC windows 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.

For replacement doors and windows in Northern Ireland, PAS 24 products are a sensible choice for security.

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. Near the coast, salt spray and wind-driven rain test seals, drainage and hardware. uPVC itself does not corrode, but stainless or coated locking parts, well-sealed joints around the frame and clear drainage slots matter, and exposed elevations may need frames with higher weather ratings.

Older rural cottages often have irregular openings, thick walls and timber lintels, so every frame is measured individually and the support above each opening is checked. Exposed hillside and open-field sites benefit from reinforced frames and careful sealing against driving rain.

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
Casement window, 900 × 1050 mm	£565 – £725
Casement window, 1200 × 1200 mm	£665 – £855
Large window, 1800 × 1200 mm	£805 – £995
Anthracite or woodgrain, 1200 × 1200 mm	£785 – £995

Choosing your uPVC windows

Tilt and turn

Opens inwards from the side for cleaning or escape, or tilts from the top for secure ventilation; practical for flats and upper floors.

uPVC sliding sash

Vertical sliders that mimic traditional box sashes, using spring balances instead of weights, where planning rules allow uPVC.

Georgian or astragal bars

Bars set between the panes or applied to the faces of the glass for a traditional divided-pane look.

Casement windows

Side-hung or top-hung sashes on friction hinges, suiting most houses, with easy-clean hinges that let upper-floor glass be cleaned from inside.

uPVC Windows in County Londonderry: questions

What guarantee comes with new uPVC windows?

Manufacturer guarantees apply to new frames, sealed units and hardware, and the terms are confirmed in writing. Guarantee terms for the installation are set out in writing with your quote, so you know what is covered and for how long before you commit. Keep this paperwork with your building regulations certificate, because buyers' solicitors usually ask for both.

Will fitting new windows damage my plaster or decor?

Some disturbance is normal, but it is usually limited to the edges of each opening. The glazier cuts out the old frame, fits the new one and finishes the inside with trims, sealant or filler. Older frames set deep into plaster may need some plaster repair, and we flag that at survey so it is covered in the quote.

How much do uPVC windows cost?

The cost of uPVC windows depends on the size and number of windows, how many sashes open, the frame colour, the glass and the access. White casements with standard double glazing sit at the lower end, while foiled colours, triple glazing and bay windows cost more. See the guide prices for typical ranges; the written quote fixes the price for your specification.

How long does it take to fit uPVC windows?

Most single windows are changed within a day, and a typical house usually takes a few days. Bays, large picture windows and openings that need a tower or scaffold take longer. Manufacturing comes first, because every frame is made to the survey measurements, and the lead time is confirmed with your quote.

Which parts of County Londonderry do you cover for uPVC windows?

We cover the whole of County Londonderry, including Derry/Londonderry, Coleraine, Limavady, Magherafelt and Portstewart, and postcode areas BT. Building rules for uPVC windows 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 · uPVC Windows across the UK

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