Aluminium Windows UK
Nationwide aluminium window specialists

Ultra-slim aluminium windows, fitted UK-wide.

More glass, less frame. A-rated warmth, any RAL colour, and a fixed price after a free survey — from a UK-wide network of specialist installers.

  • Up to 30% more glass
  • A-rated, thermally broken
  • Any RAL colour, dual-finish
  • Free, no-obligation survey
0800 088 6248 Freephone
Mon–Sat, 8am–6pm

Get your free quote

No deposit, no pressure. A specialist will call you back — usually within one working hour.

We only use your details to handle your enquiry. No spam, ever.

20-year guaranteeOn frames & finish
Free survey & quoteFixed, itemised price
Building-Regs compliantAccredited fitters
UK-wide coverageLocal install teams
No-pressure pricingTake your time
Windows & doors we make

Aluminium glazing, engineered for the way you live.

Every system is thermally broken, multi-point locked and powder-coated to last. Mix and match across your home — they'll all match perfectly.

Side & top hung

Casement windows

The classic opener, reimagined in aluminium. Sightlines slim enough to carry far more glass than uPVC, in flush or stepped frames — single light or full multi-light runs.

Dual action

Tilt & turn windows

Tilt inwards from the top for secure ventilation, or swing fully open to clean and for easy escape. A favourite for apartments, upper floors and contemporary builds.

Sliding & bay

Sliding & bay windows

Horizontal sliders and traditional bay or bow arrangements that fill a room with light. Aluminium's strength lets bays project further and sliders run larger and smoother.

Bi-fold · sliding · French

Aluminium doors

Bi-fold, sliding, French and entrance doors to match your windows exactly — slim interlocks, big glazed panels and a flush threshold that opens the house to the garden.

RAL 7016 · any colour

RAL colours & finishes

Any shade in the RAL palette, different inside and out if you like, in matt, satin or textured powder-coat. Anthracite grey is our most-requested — we'll colour-match the rest.

WER up to A++

A-rated thermal performance

Polyamide thermal breaks with warm-edge, argon-filled double or triple glazing. Warmer rooms, lower bills and no cold-bridging through the frame.

Why choose aluminium

Stronger than uPVC. Slimmer by design.

Aluminium is the frame material architects specify when they want maximum light and minimum bulk. Here's what that means for your home.

  • Slim frames, more glass

    Because aluminium is so strong, the frame can be thinner while carrying bigger panes — up to 30% more glass in the same opening than chunky uPVC.

  • Built to last decades

    It won't warp, rot, swell or discolour. A quality powder-coated finish holds its colour for 25+ years with little more than the occasional wipe.

  • Warm and efficient

    Thermally broken profiles and high-performance glazing close the old "aluminium is cold" gap completely — today's systems are A-rated.

  • Secure as standard

    Multi-point locking, internal beading and the inherent rigidity of the frame make these windows genuinely tough to force.

  • Total design freedom

    Any RAL colour, dual finishes inside and out, slim or flush sightlines — suiting everything from a Victorian terrace to a glass-wrapped extension.

Areas we cover

Aluminium windows fitted across the UK.

We install nationwide through a vetted network of local fitters — so you get national buying power with a team on your doorstep. A few of the places we cover:

Don't see your town? We cover every city, town and village in between. Pop in your postcode on the quote form and we'll confirm your local team and lead times.

Aluminium window FAQ

The questions we're asked most.

How much do aluminium windows cost?

As a guide, supplied and fitted aluminium windows typically start around £650–£1,200 per window, depending on size, style, glazing and colour. The only way to know your exact figure is a free survey — we give a fixed, itemised price and there's no deposit to find out.

Are aluminium windows worth it compared to uPVC?

If you want slimmer frames, more glass, a far wider colour range and a longer lifespan, yes. Aluminium costs more upfront than uPVC but typically outlasts it and suits contemporary and premium renovations much better.

Are aluminium windows cold or prone to condensation?

Not modern ones. Every system we fit is "thermally broken" — an insulating barrier runs through the frame — and paired with warm-edge double or triple glazing. They're A-rated and condensation-resistant, a world away from the aluminium frames of decades ago.

How long do aluminium windows last?

A well-made, properly fitted aluminium window will comfortably last 30–45 years. The powder-coated finish is guaranteed for decades and the frame itself won't rot, warp or corrode.

Can you match a specific colour?

Yes. We powder-coat to any RAL colour, with different shades inside and out if you like. Anthracite grey (RAL 7016) is the most popular, but we'll match your render, brickwork or existing frames.

Do aluminium windows need planning permission?

Like-for-like replacements usually fall under permitted development, so no permission is needed. We'll flag anything worth checking if you're in a conservation area or a listed building.

How long does installation take?

Most homes are surveyed, manufactured and fitted within 6–10 weeks. A typical install of several windows takes one to three days on site, with minimal mess and full clean-up.

Do you cover my area?

We install across the whole of the UK through our national network of fitters. Tell us your postcode and we'll confirm your local team and lead times.

Ready when you are

Ready for slimmer frames and more light?

Tell us what you need and get a fixed, no-obligation quote. Free survey, UK-wide installation, no pressure.

Your privacy

How we use your enquiry

When you submit the quote form we collect your name, contact details, postcode and the details of your enquiry so we can respond and arrange a quote. By submitting the form you consent to being contacted about your enquiry and to your details being passed to a relevant local installer best placed to help you. We process your data on the basis of your consent and our legitimate interest in handling your enquiry, and we won't use your details for anything beyond this without asking you first.

You can ask us to access, correct or delete your information at any time by calling 0800 088 6248 or emailing us. A full privacy policy is available on request. (This is a short notice — replace with your full policy page before launch.)

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