Heritage Windows & Doors
Steel-Look Aluminium for Period Homes & Modern Living. Manufactured in Yorkshire for over 20 years
Transform your home with beautifully crafted heritage windows and doors that replicate the timeless look of traditional steel
Our slim aluminium systems are ideal for period properties, listed buildings, conservation areas, and contemporary homes seeking an industrial or heritage aesthetic.
You get the best of both worlds:
✔ Elegant steel-style aesthetics with period-correct detailing
✔ Exceptional thermal performance for year-round comfort
✔ Engineered for strength, security, and longevity
✔ Virtually maintenance-free aluminium construction
✔ Ideal for listed buildings and heritage renovations
Why Choose Heritage Aluminium?
Traditional steel windows look stunning—but they’re cold, expensive, and high maintenance.
Our aluminium heritage systems are designed to solve that.
The Benefits
- Slim sightlines for an authentic steel look
- Energy-efficient glazing to keep your home warm
- Durable powder-coated finishes (up to 25-year lifespan)
- Advanced security locking systems
- No rust, warping or repainting required
Perfect for:
- Renovating period homes
- Upgrading steel windows
- Extending character properties
- Creating modern industrial interiors
Aluminium vs Steel
| Feature | Heritage Aluminium | Traditional Steel |
|---|---|---|
| Maintenance | Low | High |
| Thermal efficiency | High | Low |
| Cost | Medium–High | High |
Find the Right Heritage Product
Whether you’re replacing windows, adding doors, or redesigning your space, we have a solution.
Heritage Windows
Classic steel-look windows with slim frames and glazing bars—ideal for period renovations and conservation areas.
Heritage Exterior Doors
Front, back, French and patio doors with traditional styling and modern performance.
Heritage Bifold Doors
Open up your space while maintaining a heritage aesthetic.
Interior Heritage Doors & Screens
Perfect for dividing spaces with light—ideal for modern industrial interiors.
Steel Window Replacements
Upgrade old steel frames with energy-efficient aluminium alternatives that match the original look.
Compare All Heritage Options
Heritage Window Comparison Table
Heritage Door Comparison Table
Explore Our Heritage Glazing Collection
Explore Our Listed & Conservation Area Projects
Our heritage systems are often accepted in listed building renovations and conservation areas, thanks to their authentic appearance. We’ve worked with homeowners and planners throughout the UK. While approval always depends on your local authority, our products are designed to meet the visual requirements typically expected in heritage projects, while also delivering excellent thermal performance.
Grade II Listed farmhouse, Skipton.
“The whole journey has been an absolute pleasure, have already recommended your services to many friends.”
Mr & Mrs Paxton
VIEW PROJECT
Supply & Installation Options
We offer flexible ways to get your new Heritage windows and doors:
Supply & Install
Full professional installation across:
- Yorkshire
- Manchester
- Lancashire
- Surrounding areas
Supply Only
Order directly for your builder or project—available nationwide.
Why Choose Marlin Heritage Windows and Doors?
We combine product quality with real expertise.
✔ 10-year warranty on windows and doors
✔ 5-year warranty on double-glazed units
✔ Up to 25-year powder coating guarantee
✔ Experienced installation teams
✔ Trusted by homeowners, renovators & developers
Discover the UK’s Largest Heritage Glazing Showroom
Marlin Windows has one of the UK’s largest on-display collections of heritage aluminium glazing, allowing homeowners to explore a wide range of steel-look windows and doors in person.
From slim sightline internal screens to heritage-inspired exterior glazing, our showroom showcases the versatility, detail and design possibilities of modern industrial-style aluminium systems.
We offer expert technical advice and absolutely No Pressure Sales!
We used Marlin for windows and steel style doors and internal screens using Alitherm Heritage products on our recent self build project. Marlin are not local to us but provided an excellent service from quotation, advice, redesigns and with very detailed comms throughout. The windows and doors are the talking point of our entire build. Adrian from Marlin said that windows become the eyes of the house and I didn’t forget that – our eyes are simply stunning. Would highly recommend.
Gareth Robinson, Kirk Ella – VIEW PROJECT
Supply only – online ordering available
Our bespoke ordering service is second to none, but we also offer a Buy Online Service of our industry leading door products. Configure and purchase selected products online with ease.
‘Adrian Martin of Marlin Windows really understood what we wanted to achieve with our project. Marlin Windows went above and beyond to manufacture and deliver just the right windows to frame the garden of this 1920’s House. The windows framed the outdoors perfectly’.
Anna Kind, London – VIEW PROJECT
Why choose Marlin?
Reasons why you should expect 100% satisfaction.
Quality Control
We believe that our quality standards are unrivalled. Our manufacturing processes and activities are monitored with well defined controls and inspection procedures are performed by trained personnel.
Care
We respect you, your property and your project taking care over each detail from order to delivery to your post installation satisfaction.
Project Focus
Your project is important to us. We manufacture to your made to measure requirements so that we get it exactly right. See example case studies of our project work.
Real Projects, Real Results
See how our heritage windows and doors look in real homes—from period renovations to modern extensions.
View Case Studies
Latest projects
HERITAGE WINDOWS AND DOORS
Batt House, Northumberland Alitherm Heritage Windows and Doors
HERITAGE WINDOWS AND DOORS
1920's Home – Heritage Aluminium Windows and Doors, Battersea, London
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
We provide a FREE sample service to assist with surveying decisions, design considerations, or planning applications – just pick up the phone and ask.
Call our Customer Service team on 01535 603909
Helpful guides
Replacing Windows In A Conservation Area
Approved Aluminium Windows For Conservation Areas.
1. Do I need permission?
2. What do local authorities say?
3. What help can I expect from my local conversation officer?
4. Can I replace wood with thermally efficient aluminium?
5. Which Aluminium Windows & Doors have been approved in conservation areas?
6. Which conservation areas have aluminium replacement windows?
7. What are the key features that enabled consent to be granted?
8. What do historic England say?
9. Featured Conservation Area & Listed Building Projects
Frequently Asked Questions
If you require any support, please don’t hesitate to review our FAQ’s below or drop us a message on our contact form here
How slim is the Heritage frame?
The Heritage outerframe has a sight line of 33mm.
Are Heritage windows and doors suitable for listed buildings?
The Heritage slim systems have already been approved for listed building projects by many councils including:
London Boroughs of Islington, Camden and Tower Hamlets, Watford Borough Council, Essex County Council and Leeds City Council as well as Cadw, the Welsh Government’s historic environment service.
What thermal rating do Heritage windows and doors achieve?
Window Energy Rating ‘B’ – when using correct profile, glass unit & spacer bargrade
Come and explore…
Aluminium Bi-fold Doors, Aluminium Heritage Windows, Traditional Steel Replacement Windows and Doors.
