Steel Replacement Heritage Windows
High performance aluminium heritage windows for period or contemporary applications. Including listed buildings and conservation area properties
Industrial Style, Heritage Steel Replacement Windows. Aluminium that looks like steel!
Ultra slim, high performance aluminium windows
Our Classic system is an ideal replacement for traditional steel windows and doors, as well as ultra-modern, minimalist renovations and extensions.
Inspired by the aesthetics of traditional steel windows.
Alitherm Heritage Historic features slim sightlines and attractive contours making it the ideal choice for building conservation areas where building regulation demands like for like replacements.
Marlin are the No:1 Supplier of Heritage Glazing in the UK
View all of our Heritage Glazing Products HERE
Want to know more?
Feel free to read what our amazing clients say about us and our products
Helpful guides
Replacing Windows In Listed Buildings – It Can Be Done!
Approved Aluminium Windows For Listed Properties.
1. What is a listed building?
2. Getting consent
3. Approved aluminium replacement windows for listed buildings
4. How do Heritage windows mimic bygone windows & doors found in listed buildings?
5. Featured listed building projects
6. What to do now
Latest projects
HERITAGE WINDOWS
Wolfreton Lodge SIP New Build
STEEL REPLACEMENT WINDOWS
The Old School House
HERITAGE DOORS
Heritage Glazing – Idyllic North Yorkshire Village House
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.
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.
Contact our Customer Sevice team on 01535 603909
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.
Is the Heritage system 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 does the Heritage system achieve?
Window Energy Rating ‘B’ – U Value 1.4 W/m2K (using sealed unit 0.9 W/m2K)
Come and explore…