What are the opening hours?

Monday 8:30am - 4:30pm Tuesday 8:30am - 4:30pm Wednesday 8:30am - 4:30pm Thursday 8:30am - 4:30pm Friday 8:30am - 4pm

Coastal NW Windows

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Free, no-obligation quoting for trade and public.

North Wales trade supplier of aluminium and UPVC windows, doors, bifolds and associated building products, including composite doors, roof lanterns and conservatory roofs.

27/10/2026

Converting a conservatory roof to a SupaLite tiled roof? Our guide covers the tile finish options (ExtraLight Classic, ExtraLight Shingle and Tapco Slate), U-values (0.15 W/m2K as standard, improving to 0.12 W/m2K with the enhanced specification), roof weight (around 46kg per square metre - light enough to typically sit on an existing conservatory base), and typical install time (around 3-4 days for a standard 4m x 4m Edwardian conservatory, varying by roof style and size).

Full guide: https://coastalnw.co.uk/supalite-roof-guide/

23/10/2026

Roller garage doors: what sizes are actually available? Our sizes guide covers widths up to 5.2m and heights up to 2.65m, plus when you'll need the wider 98mm guide rail (doors 3.6m and above) or the deeper 300mm box (2.3m and above) rather than the standard 70mm rail and 250mm box.

Useful reference if you're speccing a job or checking what will fit an existing opening.

Full guide: https://coastalnw.co.uk/roller-garage-door-sizes/

20/10/2026

Specifying a composite door for a customer? Our composite door colours and options guide covers all 14 colours available (including Anthracite Grey, Chartwell Green and Slate Grey), 3 glazing options (Clear, Satin and Stippolyte - all toughened, argon-filled sealed units), and the standard chrome hardware (Balmoral lever handle, Nu-Mail letterplate, Urn door knocker).

Trade and DIY enquiries welcome. Based in Kinmel Bay, supplying North Wales for over 40 years.

Full guide: https://coastalnw.co.uk/composite-door-colours-options/

18/10/2026

Looking for a carport, veranda or entrance canopy? Our Kit Canopy system has a self-supporting, powder-coated aluminium frame with integral rainwater drainage built into the frame itself - no separate guttering needed. 16mm polycarbonate roofing in clear or opal, a white or anthracite grey frame, widths from 3m up to 10m and projections 1.5m-4m, backed by a 10-year system guarantee. Use the instant guide-price calculator on our homepage, or ask in branch about our Evolution and Simplicity systems. Trade and DIY welcome. More info: https://coastalnw.co.uk/carports-verandas-canopies/

16/10/2026

Our aluminium door range includes the Smart Alitherm 400 (thermally broken, PAS 24:2022 security approved) for entrance doors, the Smart Visoglide sliding door system, and the Alumina flush door for a seamless match with flush-sash UPVC windows. For listed buildings, the Smart Alitherm Heritage gives slim 59mm sightlines.

Slim sightlines, maximum glass, a low-maintenance powder coat finish, and typically a 14 working day lead time, subject to stock.

Trade and DIY welcome, with trade account pricing available. Based in Kinmel Bay, supplying North Wales for over 40 years.

More info: https://coastalnw.co.uk/aluminium-doors/

13/10/2026

We supply the Smart Alitherm 400 as our core aluminium window system - thermally broken, Part L-compliant and PAS 24:2022 security approved, with a 70mm frame depth, for new build and refurbishment projects. For listed buildings and heritage projects, we also supply the slimmer Smart Alitherm Heritage (59mm sightlines, 47mm frame depth).

Finished in durable powder coat with colour-matched hardware available, and typically a 14 working day lead time, subject to stock.

Trade and DIY welcome, with trade account pricing available. Based in Kinmel Bay, supplying North Wales for over 40 years.

More info: https://coastalnw.co.uk/aluminium-windows/

11/10/2026

Specifying a roof lantern or flat roof light? Our sizes guide covers the Korniche range (up to 6m x 4m rectangular, or 4m x 4m square/pyramid, fixed 25° pitch, 28mm argon-filled glazing, PAS24 security as standard) and the made-to-measure Infinity range (28mm glazing, 1.2 W/m²K centre-pane U-value). Also covers the difference between a pitched lantern roof and a flush flat roof light. Useful reference if you're speccing a conservatory or extension roof. Full guide: https://coastalnw.co.uk/roof-lantern-sizes/

09/10/2026

A reminder to local installers, builders and contractors: Coastal NW is a trade supplier based in Kinmel Bay, supplying aluminium and UPVC windows, doors, bifolds and building products across North Wales for over 40 years.

If you're pricing a job, you can request prices, send us sizes and specifications, or call in to the trade counter. We also welcome DIY customers.

Call 01745 338882, email [email protected], or visit us in Kinmel Bay.

Trade account info:

06/10/2026

Aluminium bifold doors are one of our fastest-growing ranges. We supply the Smart Visofold 1000 Slim - the UK's most popular bifold system - with slim 122mm sightlines and a Quick-Glaze Bead for faster, easier glazing on site.

If you're an installer, builder or contractor speccing a bifold job, our guide covers sightlines, configurations and colour options to help you price it right first time.

Trade accounts welcome. Based in Kinmel Bay, supplying trade and DIY customers across North Wales.

More info: https://coastalnw.co.uk/aluminium-bifold-doors/

04/02/2026

We now supply remote-controlled roller garage doors.

A secure, modern solution that’s easy to install, with plug-and-play operation once fitted. Ideal for new installations or replacing existing garage doors.

Get in touch for more information.

Address

Unit 2A, Mercury Units, Tir Llwyd Enterprise Park
Kinmel Bay And Towyn
LL185JZ

Opening Hours

Monday	8:30am - 4:30pm
Tuesday	8:30am - 4:30pm
Wednesday	8:30am - 4:30pm
Thursday	8:30am - 4:30pm
Friday	8:30am - 4pm

Telephone

+447501505159

Website

https://coastalnw.co.uk/

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