Replicate the appearance of traditional steel doors from a bygone era with classic glazing bars and panel designs to create a vintage look.
Alitherm Heritage has been designed to offer a solution for heritage properties and building renovation projects where there is a need for a modern replacement or alternative to old steel.
I'd wholeheartedly recommend Marlin Windows. We ordered Aluminium Steel replacement 'crittal' type French Patio doors and Windows. They are absolutely beautiful. And they were an absolute pleasure to deal with. Thanks Marlin!
Our fabulous Heritage Doors featured on
George Clarke’s Old House New Home (The Edwardian house in Golders Green London)
broadcast on Channel 4 in November 2018
Watch the full episode here or
Watch the 90 seconds programme highlights
"Beautiful doors" - George Clarke (Channel 4 - George Clarke’s Old House New Home)
"Really happy with those doors" says homeowner Lauren
For when you need modern, secure, thermally efficient doors without sacrificing the heritage and character of your traditional or period property.
This extremely versatile aluminium door system is an authentic and cost effective glazing solution ideally suitable for a wide range of applications including heritage, listed, retro refurbishment and Art Deco projects. Looks like steel.
With slim sight lines that create maximum glass areas the stepped frame profiles, glazing bar options and hardware choices offer a classic appearance with excellent thermal and operational performance.
Exclusive hardware and a dedicated window system with matching frame profiles is also available to compliment this door system.
The Smart Alitherm Heritage door is the ideal replacement for steel doors on heritage applications such as building renovations or apartment conversions.
The Alitherm Heritage door provides the solution for conservation areas where planning regulations require a like-for-like product replacement.
Alitherm Heritage door profiles feature the system's signature slim sightlines and elegant lines that complement Smart's existing Alitherm Heritage window and mimic those of steel doors.
The system has all the advantages of modern aluminium profiles that feature polyamide thermal breaks, allowing the system to achieve a U Value of 1.6 W/m2k when installed with a suitable sealed unit.
External single or double open out heritage doors
Internal partition wall doors
Window Energy Rating ‘A’ – when using correct profile, glass unit & spacer bar
1.6 W/m²K with 1.2 centre pane U value
1.4 W/m²K with 0.8 centre pane U value
Method of fabrication: corner crimping
24mm double glazed unit
Tape or gasket glazed
Traditional Art Deco handles available
WHY BUILD A SOLID WALL WHEN YOU CAN HAVE A GLAZED PARTITION?
Exclusive to Marlin Windows a fantastic solution for separating living spaces with a run through floor finish.
...trumps the 'Crittall' type systems on thermal performance and cost.
The grasp of the importance of design and quality of manufacture from the Marlin Team is second to none.
Our aluminium profiles are polyester powder coated by our systems suppliers using the very latest paint application techniques guaranteed for 25 years.
SGG Planitherm sealed glass units complete our leading combination of products and finishes.
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Section identification Guide
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Supply only – Guide to installation
Read our guide to buying french doors for your home
Read our guide to listed building window replacement
Read our guide to conservation area property window replacement