Best Colours for Aluminium Windows and Doors (2026)

Choosing a colour is the question almost every customer asks once they have settled on aluminium frames. It feels permanent, because it is: a powder-coated aluminium frame holds its colour for decades, so the shade you pick now is the shade you live with for a long time. This guide covers the colours that actually work on UK homes in 2026, the finishes available, how powder coating lasts, and how to match a colour to your property and protect its resale appeal.

Is Anthracite Grey Still the Most Popular Choice?

Anthracite grey, specified as RAL 7016, remains the single most requested colour for aluminium windows and doors across Buckinghamshire, Berkshire and the rest of the UK. It has been the default premium choice for several years and shows no real sign of fading from favour. There is good reason for that. It reads as contemporary without being stark, it suits both modern new-builds and traditional brick or render, and it pairs cleanly with almost any roof, brickwork or rendered finish.

Some buyers worry that anthracite has become so common it now looks predictable. In practice it has settled into the role that white uPVC once held: a safe, broadly liked default that buyers and estate agents recognise instantly. If you want the lowest-risk colour for a future sale, RAL 7016 is still the answer. If you want something with more character, the options below are all credible.

The Colours That Work Best on UK Homes

Black (RAL 9005)

True black, usually RAL 9005, is the strongest alternative to anthracite and is growing fastest in 2026. It delivers a sharper, more architectural line, particularly on aluminium casement windows and slim sightline frames where the thin profile is the whole point. Black suits white render, pale stone and dark brick especially well, and it is the natural partner for a steel-look or Crittall-style aesthetic. A black bifold door against a white kitchen wall is one of the most requested combinations we install.

Off-White and Cream (RAL 9010 / RAL 9001)

Soft whites and creams (RAL 9010 pure white, RAL 9001 cream) are the right call for period properties, cottages, and conservation-sensitive streets where deep grey or black would look wrong. They keep the bright, traditional feel of original timber joinery while giving you the longevity of aluminium. For a Georgian or Victorian frontage, an off-white frame is often more sympathetic than a fashionable grey.

Sage and Heritage Greens (RAL 6021 / RAL 7003)

Muted greens are the standout colour trend of 2026. Sage, olive and heritage greens (RAL 6021 pale green, or the warmer RAL 7003 olive grey) work beautifully on country and barn-conversion properties, and they have moved from niche to genuinely mainstream over the last two years. Green flatters natural stone, timber cladding and planted garden settings, and it gives a front door real presence without shouting. It is a confident choice rather than a safe one, so it rewards a home with the right setting.

Dual-Colour Frames

One of the biggest advantages of aluminium over uPVC is that you can specify a different colour inside and out. A common pairing is anthracite grey externally with a white or cream interior, so the frames read as sleek and modern from the street while keeping interior rooms bright and neutral. Dual-colour adds a small cost at the powder-coating stage but no structural complication, and it lets you satisfy both the kerb appeal and the interior decor without compromise. Black outside with a soft grey inside is another pairing we fit often.

Matt, Textured and Gloss Finishes

The finish matters as much as the colour. The same RAL number looks noticeably different across the three common finishes.

• Matt is the dominant choice in 2026. A matt anthracite or matt black gives a flat, premium, low-sheen look that hides surface marks and reads as contemporary. Most of our customers choose matt.
• Textured (also called fine-texture or sablé) has a very subtle grain you can feel. It is excellent at disguising minor knocks and weathering over the years, which makes it a practical choice for doors and ground-floor frames that get handled.
• Gloss is the traditional high-sheen finish. It still suits certain heritage and classic schemes, and a gloss white can look crisp on a period property, but for modern grey and black frames most buyers now prefer matt.

If you are unsure, matt is the safest specification for a modern home and textured is the most forgiving for high-traffic doors.

How Powder Coating Works and How Long It Lasts

Aluminium frames get their colour from powder coating, not paint. Dry pigment powder is applied to the frame electrostatically, then baked in an oven so it cures into a hard, even, fully bonded shell. Because it is fused to the metal rather than brushed on, it does not peel, flake or need repainting the way a timber frame does.

Quality powder coating is typically applied to a recognised standard such as Qualicoat, and on our installs it carries a 25-year frame guarantee. In real terms that means a properly coated aluminium frame will hold its colour and finish for decades with nothing more than an occasional wipe with soapy water. The frames themselves last 40 or more years because aluminium does not rot or warp, and the thermally broken construction keeps them efficient as well as durable. If you want the detail on why thermal breaks matter, see our explainer on thermally broken aluminium windows.

A practical note for darker colours: deep shades like black and anthracite absorb more heat in direct sun. A good fabricator accounts for this, and on south-facing elevations the powder-coating standard and the thermal break do the work of keeping the frame stable. It is a reason to use a quality installer rather than the cheapest quote, not a reason to avoid dark colours.

Matching Colour to Property Style and Era

The colour that suits your home depends heavily on its age and materials.

• Modern and new-build: anthracite grey or black, matt finish, often with slim sightlines. The systems we fit here include Cortizo and Schuco aluminium ranges such as the Cor Vision Plus Sliding and the Schuco AS FD 75 bifold.
• Period and traditional (Georgian, Victorian, Edwardian): off-white, cream or a soft heritage grey. The Cortizo Cor 70 Hidden Sash is designed to suit traditional elevations while keeping a slim, sympathetic frame.
• Country, barn and stone properties: heritage green, olive or a warm grey, frequently with a textured finish.
• Contemporary extensions on an older house: match the new aluminium to the era of the extension, not the original house, so the new glazing reads as a deliberate modern addition.

For a wider comparison of frame materials before you commit, our aluminium vs uPVC windows guide sets out where each one wins. If you are weighing two specific aluminium systems, Cortizo vs Schuco breaks down the differences, and the best aluminium bifold door brands covers the leading options. Bear in mind that uPVC ranges such as the Rehau TOTAL70 are more limited on colour than aluminium, which is one of the reasons buyers who want a specific shade choose aluminium.

Does Colour Affect Resale Value?

Colour does influence saleability, though more subtly than people expect. Anthracite grey and black are the colours buyers and estate agents now associate with a modern, well-maintained home, so they carry the broadest appeal and the lowest risk on resale. Off-white and cream are equally safe on a period property where they are the natural fit.

Stronger statement colours, a bold green or a deep blue, are wonderful for an owner who loves them but slightly narrow the pool of buyers who share that taste. The compromise many owners reach is a confident exterior colour paired with a neutral interior via dual-colour frames, which keeps the inside broadly appealing. As a rule, if you are likely to sell within a few years, lean towards grey, black or off-white; if this is your long-term home, choose the colour you actually want to look at every day.

Whatever colour you choose, every Vitrum Solutions installation is FENSA registered and backed by a 10-year CPA insurance-backed guarantee, and the frames are made to PAS 24:2022 security standard. The colour is the finishing touch on a window or door that is built to last.

Frequently Asked Questions

Is anthracite grey going out of fashion for 2026?

No. RAL 7016 anthracite grey is still the most-requested aluminium frame colour in 2026 and remains the lowest-risk choice for resale. Black is growing fastest as the main alternative, and heritage greens have moved into the mainstream, but anthracite has settled into the role of a recognised, broadly liked default rather than a passing trend.

Can I have a different colour inside and out on aluminium frames?

Yes, this is one of the key advantages of aluminium over uPVC. Dual-colour powder coating lets you specify, for example, anthracite grey externally for kerb appeal and white or cream internally to keep rooms bright. It adds a small cost at the coating stage but no structural complication, so you can satisfy both the exterior look and the interior decor.

Will a black or dark grey aluminium frame fade in the sun?

A quality powder-coated frame applied to a recognised standard such as Qualicoat will hold its colour for decades and carries a 25-year frame guarantee on our installs. Dark colours do absorb more heat, so south-facing elevations benefit from a properly specified thermal break and a quality coating, which is a reason to use a good installer rather than to avoid dark shades.

Should matt or gloss be chosen for modern aluminium windows?

Matt is the dominant choice for modern homes in 2026 because it gives a flat, premium, low-sheen finish that hides surface marks. Textured finishes are the most forgiving for high-traffic doors. Gloss still suits some heritage and classic schemes, particularly in white, but most buyers now prefer matt for contemporary grey and black frames.

What colour aluminium windows suit a period or conservation-area property?

Off-white (RAL 9010), cream (RAL 9001) or a soft heritage grey usually suit Georgian, Victorian and Edwardian homes better than deep grey or black, because they echo the original painted timber joinery. Slim-sightline systems like the Cortizo Cor 70 Hidden Sash keep the frame sympathetic. Always check any conservation-area or listed-building requirements before specifying.