01535 603909

The Property:

Traditional late 19th century mid terraced property in York with a new rear extension sympathetically faced with reclaimed local red brick work.

The Requirement:

A specific requirement for a ‘steel lookalike’ steel alternative French door scheme with fixed side lights and run through glazing transoms in a slim frame thermally efficient aluminium system.

A very low threshold detail and maximum glass areas were essential features of the design.

It was also important to the owners that outer frame sight lines were visibly equal around the perimeter of the outer frame.

Part of the specification was to incorporate a cat flap within one of the lower corner sealed units.

The Solution:

Marlin Windows Heritage Door system was recommended as the perfect steel replacement solution to meet all of the owners requirements.

Marlin used dedicated system components in critical areas to ensure an equal outer frame sight line on both sides of the door scheme - this was particularly important so as not to ‘bury’ the side light frames with the internal final floor finish as the door threshold detail needed to be as low as possible.

This Project:


aluminium alternative to steel french doors in York
Alitherm steel replacement double door
Get a Quote on alitherm heritage steel replacement doors

Marlin Windows supply and install the highest quality aluminium windows and doors in York and across Yorkshire.

Explore the Marlin Windows full range of glazing systems and services here.



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

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"Delighted with the finished product.
All our other professional contractors commented on how impressed they are with the Marlin product quality & finish.
Superb service"

Noel Brown


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Technical advisors are on hand at the aluminium window and door showroom in Keighley in West Yorkshire

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.

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Rated 5.0 out of 5 Nicholas Kitchen

...really helpful with all my technical queries, which helped make sure my orders were mm perfect and the doors all went in smoothly...
They look great - will do it all again in our next house!


Rated 5.0 out of 5 Dom B

Super customer service, they actually answer the phone and call back promptly if they’re not available... very helpful throughout with technical advice.


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