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Covid-19 Update: Wednesday 27th May

Returning to Service - Safely

Marlin have successfully returned to our production and delivery services.

We have reviewed our operations fully to enable us to reopen both production and delivery services in the safest possible manner and are pleased to announce that

as of 1st June we will be welcoming visitors back to our showroom by appointment only (with safety precautions & social distancing guidelines in place).

As we welcome this return to being able to service our customers, our teams will remain vigilant to risks and will continue to work in a safe way in accordance with the latest guidelines.

Throughout our site, production and delivery teams will be operating with social distancing measures in place and we would encourage all of our customers to support and maintain this position.

We would like to thank our staff, customers and the wider industry for pulling together during this difficult time and recognise the extreme challenges that have been placed on all of us.

Our customers can be reassured that Marlin are uniquely placed as one of the UK’s preferred aluminium glazing manufacturers and continue to support you as we all work to build a new marketplace over the coming weeks.

Floor to ceiling feature windows at this grand designs project in Ilkley Yorkshire


With our company founders’ roots firmly grounded in precision aerospace engineering we apply exactly the same principles of meticulous care and attention to detail when manufacturing your aluminium windows and doors.

No compromise, right first time!

And we are rated ★★★★★ on Google

Need to know more about Marlin Windows?
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"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!"

Myer Craig Brown - London E18

Read this and other reviews on Google


heritage aluminium doors installed in London as shown by George Clark on TV


Alitherm Heritage Doors have been designed to offer a cost-effective solution for period properties, renovation projects and contemporary buildings that require a modern high performance alternative to steel framework.

Replicate the appearance of traditional steel doors from a bygone era with slim thermally efficient aluminium profiles, classic glazing bars and panels to create a vintage look.



Yorkshires leading supplier of aluminium windows and doors.

Yorkshire based Marlin Windows specialise in providing aluminium windows and aluminium doors for domestic and commercial customers.

We are a family run business established in 2003 who manufacture and install Aluminium Bi-fold Doors, Aluminium Heritage Windows and Traditional Steel Replacement Windows.


heritage aluminium windows installed at prestigious manor house in North Yorkshire


High performance aluminium windows with innovative designs and bespoke glazing options for period or contemporary applications.



Aluminium tripple track sliding doors installed at Ilkley in Yorkshire


A versatile range of residential, bi-fold, sliding, steel replacement aluminium doors


To guarantee the highest quality paint finish all of our aluminium products are polyester powder coated to Qualicoat standards by our glazing systems suppliers.

We are members of the Saint-Gobain Planitherm Installer Network and only use Planitherm glass in our insulated glass units. This high performance glass product is specially manufactured by Saint-Gobain Glass (SGG) for the UK market place and is the best selling high performance low emissivity (low E) glass in Europe.

As approved members of CERTASS and Trustmark we have been strictly vetted to ensure that we are qualified to conduct surveys, design glazing schemes and to carry out the replacement of windows and doors in accordance with current building regulations.

With a 25 year guarantee available on powder coated paint finishes and 5 years on our insulated glass units we believe that our warranty package is the best in the industry.

Our 10 year manufacturing and installation warranty is insurance underwritten - for complete peace of mind.



Premium aluminium windows and doors manufactured in our own specialist facility in the heart of Yorkshire.


Fitting Aluminium Window & Doors

At Marlin we provide a complete surveying and installation service that is second to none.


Aluminium Windows

For inspiration, help and advice visit our perfectly formed showroom.

Marlin aluminium windows & doors feature on Channel 4's Grand Designs


Marlin's aluminium windows and doors regularly feature on TV.

And receive praise from experts such as George Clarke.

Find out more about our TV featured projects

Our windows and doors feature in local Ilkley, Skipton, Halifax, Bradford, Leeds, Shipley & Keighley properties.

Also further afield in Yorkshire from Harrogate to Huddersfield, Sheffield, Wakefield and York.

Outside of Yorkshire we have supplied and installed glazing solutions from Nottingham to the Lake District.

We also supply to London and the South.