Agate, Anthracite or 7016? Choosing grey window colours that age well
- 5 December 2025
- News
As well as deciding upon materials and styles, settling on a window frame colour is a decision that takes a lot of thought.
If you’re looking for an unobtrusive, seamless-looking fit, truth be told, you can’t really go wrong with grey options. Typically associated with new-builds and contemporary properties, grey frames can also slot in effortlessly with older homes and cottages.
Once you’ve chosen grey, there are different shades to consider. From soft agate grey to deep slate grey and the popular 7016 anthracite grey RAL, there is a finish to suit any house, for both uPVC and aluminium frames.
In this guide, we will explore the differences between uPVC and aluminium finishes, highlight popular grey shades, and explain what makes these colours so long-lasting. Whether you are aiming for a modern look or a subtle neutral colour, we are here to help you pick the perfect finishing touch.
Explaining the Differences Between uPVC and Aluminium Finishes
Before we dive into specific grey finishes, it is useful to understand the differences between uPVC and aluminium windows.
- uPVC is a synthetic plastic, the most popular window material in the UK. Affordable, low-maintenance and highly customisable, uPVC windows can be foil-wrapped or coloured during manufacture to create a durable, long-lasting finish.
- Aluminium is a metal frame option, strong and lightweight, ideal for contemporary designs. Aluminium windows are finished in RAL colours, a European standard that ensures consistent shades across every frame, and perfect colour matching with doors, for example.
| Feature | Aluminium (RAL) | uPVC (Foil / Coloured uPVC) |
| Colour application | Powder-coated or wet-painted | Foil-wrapped or integrated colour |
| Finish options | Matte, satin, gloss | Textured (woodgrain) or smooth |
| Durability | Extremely durable, fade and scratch-resistant | Very durable; high-quality foils resist UV and wear |
| Maintenance | Low, occasional cleaning | Low, wipe clean, avoid abrasive chemicals |
| Aesthetic versatility | Any RAL colour possible | Wide range of colours, including woodgrain effects |
Both materials are designed to last 20+ years with proper care. Your choice often comes down to the style of window, finish and overall aesthetic for your home. Aluminium is perfect for sleek, modern frames, while uPVC is ideal for versatile colour options, including woodgrains, and traditional window styles.
Examples of uPVC Grey Finishes
uPVC windows from Crown come in a wide range of grey shades, including:
Anthracite Grey
A classic deep grey, anthracite grey gives your windows a modern look while maintaining a neutral, stylish appearance that suits most homes.
Anthracite Grey Sanded
With a subtle texture, this finish adds depth and mimics a more natural effect, ideal for contemporary or rustic homes.
Aluminium Brushed
A metallic look that adds a modern twist to your uPVC windows, bridging the gap between traditional and contemporary styles. Has woodgrain foils.
Grey
A versatile, neutral grey that blends with existing windows and brickwork, providing a perfect finishing touch.
Agate Grey
Softer and lighter than anthracite, agate grey is a popular choice for homeowners seeking subtle elegance.
Sheffield Oak Alpine (Woodgrain Effect)
For an authentic woodgrain texture without the maintenance of timber, this grey-toned wood effect adds warmth and character.
Sheffield Oak Concrete
A modern, muted grey woodgrain effect ideal for stylish new builds or updated period homes.
Examples of Aluminium Grey Finishes
Aluminium windows offer the precision of RAL colours, meaning you can choose any shade for your project. Popular grey options include:
Anthracite Grey (7016)
The deep, sophisticated grey that has become the standard for modern homes, one of the market’s most popular colours.
RAL 7035 (Light Grey)
A subtle, soft grey that keeps your windows understated while complementing light walls or exterior finishes.
RAL 7038 (Agate Grey)
Perfect for a gentle neutral tone, agate grey aluminium windows provide a versatile colour choice.
RAL 7001 (Silver Grey)
Light and reflective, ideal for homes with a modern or minimalist aesthetic.
RAL 7015 (Slate Grey)
A slightly darker grey that works beautifully with natural stone or brick exteriors.
uPVC Windows From Crown
Our uPVC window range combines style, durability and energy efficiency. Choose from:
- Casement windows, practical and versatile
- Flush sash windows, traditional look with modern performance
- Sliding sash windows, classic style and easy operation
- Tilt and turn windows, flexible ventilation and cleaning options
All our uPVC windows offer thermal efficiency, low maintenance and a stylish look that lasts. They are backed by a 10-year year guarantee.
Aluminium Windows From Crown
Our aluminium window range is built for modern homes with clean lines and durable finishes:
- Casement windows, strong and lightweight frames
- Flush sash windows, contemporary twist on a classic style
- Tilt and turn windows, excellent ventilation and easy maintenance
Aluminium windows are ideal for RAL colours, providing long-lasting colour and exceptional security performance.
FAQ
Do grey uPVC windows fade over time?
High-quality foils and coloured uPVC are designed to resist UV damage and fading. With simple care, such as cleaning with a soft cloth and avoiding abrasive chemicals, your grey windows can look vibrant for 20–25 years.
Can I match my doors to grey windows?
Yes. Crown offers a range of uPVC and aluminium doors in matching grey shades, including patio doors, entrance doors and bi-fold doors, so you can create a coordinated and stylish exterior.
Which grey finish is best for a traditional home?
For period or traditional homes, agate grey or woodgrain effect finishes like Sheffield Oak Alpine provide a subtle, authentic appearance without compromising style or durability.
Who Are Crown?
Crown Conservatories, Windows and Doors Ltd has over 20 years of experience installing premium uPVC and aluminium windows and doors in Milton Keynes and surrounding areas. FENSA-registered, we provide free home visits, 3D design plans and a 10-year insurance-backed guarantee. Visit our showroom or contact us on 01908 507 778 / info@crownwindows.co.uk to explore our range of colours and styles.
Key Findings
- Grey is a stylish, versatile colour for modern and traditional homes
- uPVC windows offer foil or coloured finishes; aluminium windows use RAL colours
- Popular grey shades include anthracite grey, agate grey and 7016 RAL
- Both uPVC and aluminium windows provide low maintenance, long-lasting colour and energy efficiency
- Coordinating windows and doors creates a polished, harmonious appearance for your home
Crown Conservatories, Windows and Doors Ltd can help you choose grey uPVC windows colours UK or aluminium shades that suit your home. Explore our online colour charts or browse our uPVC window product pages to find your perfect shade today.
