Slim, Elegant Sightlines
Narrow aluminium frames maximise natural light and create clean, elegant lines without compromising on strength.
Aluminium Windows Made to Measure for Heritage & Modern Homes
Slim sightlines. Strong performance. Built to last.
At Marlin Windows, we manufacture and install bespoke aluminium windows for everything from listed buildings and steel-look replacements to contemporary homes and architectural glazing projects.
Designed around your property, our windows combine durability, energy efficiency, and refined aesthetics — without compromise.
Heritage, steel-look & contemporary designs
Thermally efficient, secure & made to measure
Wide choice of colours, finishes & glazing
Typical 4-week supply-only lead time
Nationwide supply & delivery
Regional survey & professional installation
Interest-free credit available – T&Cs apply
10-year warranty & 25-year paint finish guarantee
Proudly Yorkshire-made since 2003
Which aluminium window is right for your project?
Choosing the right style depends on your property and goals. We offer tailored solutions across four key categories:
Heritage Aluminium Windows
Designed for period homes and listed buildings, these windows replicate traditional proportions while delivering modern performance.
- Slim profiles to match original designs
- Suitable for conservation areas
- Ideal for renovations and restorations
Steel Replacement Windows
Get the classic industrial or Art Deco look of steel windows, without the drawbacks.
- Authentic steel-look appearance
- Improved thermal efficiency
- Lower maintenance than traditional steel
Contemporary Aluminium Windows
Perfect for modern homes, extensions, and new builds.
- Minimal frames and large glazed areas
- Clean, architectural styling
- Excellent thermal performance
Bespoke Aluminium Glazing
For projects that need something unique.
- Custom shapes and sizes
- Feature glazing and architectural designs
- Made-to-measure for your exact requirements
Not sure which option suits your project? Speak to our team
Our Complete Aluminium Window Range
Aluminium windows offer a sleek, modern appearance combined with outstanding durability and performance. Designed to suit both contemporary and traditional properties, they provide slim sightlines that maximise natural light while delivering exceptional strength and long-lasting reliability.
Why Choose Aluminium Windows?
Discover the benefits of aluminium windows from Marlin Windows. Combining elegant design, outstanding thermal performance and lasting durability, our windows are made to complement both contemporary and traditional properties.
Strength & Durability
Manufactured from high-quality aluminium, our window frames are strong, stable and designed for long-lasting performance.
Low Maintenance
Durable finishes require minimal upkeep, with no routine sanding or repainting needed.
Thermal Performance Beyond Building Regulations
All our aluminium window systems exceed current building regulation requirements for thermal performance, helping to improve comfort and energy efficiency.
200+ RAL Colours & Bespoke Designs
Choose from over 200 RAL colours, with standard and bespoke sizes to suit your property and personal style.
Enhanced Security
Strong aluminium frames and modern locking systems provide reassuring security, with PAS 24-compliant options available where specified.
Heritage & Listed Building Options
Heritage-inspired designs can complement traditional properties, conservation areas and listed buildings, subject to the necessary approvals.
10-Year Manufacturing Warranty
Enjoy added peace of mind with our 10-year manufacturing warranty, subject to the applicable warranty terms and conditions.
WHY CHOOSE MARLIN WINDOWS?
We don’t just supply windows — we help you get the right solution for your property.
Bespoke manufacturing
Every window is made to your exact measurements and requirements.
Experience across property types
From listed buildings to modern homes, we understand the demands of different projects.
Quality you can trust
We use proven systems and materials to ensure long-term performance.
10-year manufacturing warranty
Confidence built into every product.
Unrivalled Quality Customer Service
Our high quality window and door products are backed by the same high quality customer service. Technical advisors are just a phone call away to answer all your questions no matter how technical.
Typical help provided includes:
- Choosing the right product
- Getting the right made to measure size
- Help with ordering
- Threshold advice
Just pick up the phone and ask.
Contact our Customer Service team on 01535 603909 or Click to call
Latest projects
HERITAGE WINDOWS AND DOORS
Batt House, Northumberland Alitherm Heritage Windows and Doors
CONTEMPORARY WINDOWS
Feature Glazing, Reservoir House – Ilkley
STEEL REPLACEMENT WINDOWS
Listed Farmhouse, Heritage Windows and Doors – Skipton
CONTEMPORARY WINDOWS
Stunning New Build, Ilkley – Contemporary Glazing
CONTEMPORARY WINDOWS
Contemporary Aluminium Glazing, Louper Weir, Lake District – New Build
HERITAGE DOORS
Heritage Glazing – Idyllic North Yorkshire Village House
Frequently Asked Questions
Do you offer installation?
We offer an installation service across North Yorkshire, West Yorkshire, South Yorkshire, Greater Manchester and Lancashire. Our specialist installation teams have years of experience in expertly surveying and fitting our complete range of aluminium doors and windows.
Do you offer any financing options?
We offer flexible, interest-free financing on our heritage window range. For more information, please see our financing page.
Are your aluminium windows secure?
Our range of aluminium windows and doors are available with the highest-level of PAS 24 certification
How efficient are your aluminium windows?
All of our products are very thermally efficient; they meet and exceed all current building regulations.
Our aluminium profiles are thermally broken and benefit from high performance double glazing with a centre pane U Value of 1.2 W/m2 as standard. The maximum overall U value of any of our products is 1.6 W/m2, with many of our door and window products offering even lower U Values.
How long do aluminium windows last?
Well-made aluminium windows can last for more than 30 years. At Marlin, all of our aluminium windows come with a 10-year manufacturing guarantee and a 15-year paint guarantee as standard.
How do you install aluminium windows?
We recommend using an expert to ensure that your windows fit safely and securely. If you’re based in the North of England, we have our own expert installation team who cover West Yorkshire, Lancashire, Greater Manchester, North Yorkshire & South Yorkshire
How are aluminium windows made?
We manufacture all our windows at our state-of-the-art factory in Keighley. Over the 20+ years we’ve been in the business, we’ve developed rigorous processes and exceptional attention to detail. Read about our full manufacturing process here.
What colours do your aluminium windows come in?
We offer all our frames powder-coated in over 200 RAL colours. See the full range of paints and finishes here.
How much do aluminium windows cost?
A range of factors can affect the price of bespoke projects, such as size, style, glazing choice, colour and installation complexity. We offer tailored quotes for all these projects and endeavour to get back to you within 24 hours.
For more information, see our guide: Aluminium Windows & Doors Cost UK.
Come and explore…
Aluminium Bi-fold Doors, Sliding Doors, Contemporary Glazing, Aluminium Heritage Windows and Traditional Steel Replacement Doors
