The Heritage Glazing Collection

High performance aluminium heritage windows and doors

Internal and external glazing options for period or contemporary applications.

including listed buildings and conservation area properties


Aluminium Heritage Windows

Elegant slim aluminium heritage windows for period properties... or fabulous new builds.


Steel replacement aluminium french doors

Aluminium heritage doors that look like steel, at a fraction of the cost.


Crittal Steel Replacement Windows

Steel replacement aluminium heritage windows approved for listed buildings by many council authorities.


Internal crittall style doors

*NEW* Dedicated interior glazing system for screens and room dividers

Heritage Bi-Fold Doors

crittal style heritage bi-fold doors

*NEW* Steel style heritage bifolding doors.
Harmonises perfectly with heritage windows.

Alternatives To Steel
Buyers Guide

Read our guide to Crittall® window and door alternatives

Read our buyers guide to the best Alternatives To Steel Windows and Doors

Our versatile slim aluminium heritage window and door systems are suitable for a wide range of applications including: listed building projects with planning constraints, replica refurbishment, art deco, contemporary and new build developments.

They provide the best alternative to Steel Windows and Doors at a fraction of the cost

A unique steel replacement aluminium heritage window system with ultra slim sight lines has been specifically designed to authentically replicate the appearance of traditional steel window frames.

Rated 5.0 out of 5 Andy Myers

Love our new heritage windows and door. Great product and fit for our home. Really great service from Adrian, Hannah, Julian and rest of the team. Thank you!


Elegant slim frame profiles authentically replicate steel doors from a bygone era. Single heritage door, French door or now *NEW* heritage Bi-fold door options are available along with classic glazing bars to create a vintage look that is thermally efficient and highly secure.

Rated 5.0 out of 5 Nicholas Kitchen

I ordered three sets of doors to self-install: the team at Marlin were really helpful with all my technical queries, which helped make sure my orders were mm perfect and the doors all went in smoothly with the glazing bars all lining up precisely. They look great - will do it all again in our next house!


The heritage look can now be continued throughout the home with our *NEW* interior heritage glazing system designed specifically to provide dedicated internal heritage glazing for steel look partition doors, screens, glass walls and room dividers.

This versatile system provides the opportunity to create or partition a living or home office working space whilst ensuring high levels of natural light can flood between rooms.

Rated 5.0 out of 5 Gareth Robinson

We used Marlin for windows and internal traditional steel style doors and 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... simply stunning. Would highly recommend.

View Our Featured Heritage Glazing Collection Projects:


"Beautiful doors" - George Clarke (Channel 4 - George Clarke’s Old House New Home)


"Really happy with those doors" says homeowner Lauren


Heritage Window & Door Inspiration & Advice

Replacing Windows In A Listed Building

Read our guide to replacing windows in listed buildings

Read our guide to listed building window replacement

Replacing Windows In Conservation Area Properties

Read our guide to replacing windows in conservation area buildings

Read our guide to conservation area property window replacement


Why Choose Marlin Windows?

We care...

about the quality of finish
about you, your project and your property
about your 100% satisfaction

And we are rated ★★★★★ on Google

need more reasons? click here

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Rated 5.0 out of 5 Helen Westwell

Fantastic company, great product and extremely helpful throughout.

Read this and other Reviews of Marlin Windows left on Google



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