Our Supply Only Service 

We offer a selection of our high-quality aluminium windows and doors on a supply-only basis. Builders, architects and glazing installers can purchase our award-winning products to install on their own projects.

This service allows builders and other tradesmen to manage their own project timeline and installation. We can provide improved lead times on those offered by our glazing partners who run installation services. This can help projects where lead times are key.

Becoming a Sieger partner can be extremely useful if you have repeat orders and allows all projects to benefit from tailored glazing packages with outstanding performance and design.

Our windows and doors can be collected from our fabrication factory in Amersham which has excellent transport links to the M25, M40, M4 and M1, allowing us to service projects all over the UK.

All systems products are also available PPC any RAL colour, although our standard range of RAL colours will offer a reduced lead time.

As part of our supply only service you will be provided with full installation manuals and accessories for your chosen products, enabling you to install our products successfully. We can also provide full O+M Manuals for you to include in your project documentation.

To get a quotation for your supply only aluminium glazing email sales@siegersystems.co.uk. 

See below for FAQ’s.


gold framed three pane aluminium casement window with flush design

Frequently Asked Questions about our Supply Only Service


Which Sieger glazing products are available on a supply only basis?

We have a range of aluminium sliding doors available on a supply only basis including The Sieger Slim Sliding Door and Sieger XL Sliding Door. We also have our Sieger Lux range which includes The Sieger lux Bifold and Sieger Lux Doors (which can be pivoting or hinged).

Other glazing solutions available from this service include (but are not limited to); The Sieger 120 Bifold Door, all of our MIRO internal glass doors and Sieger Casement Doors and Windows.

Associated glazing products such as single pane rooflights can also be ordered on a supply only basis.


How long are lead times for products on supply only?

Lead times tend to be between 6-8 weeks; however, this can vary depending on the size, colour, and complexity of the order.

It is important to note that lead times are from when drawings have been signed off, and not from the order date.


aluminium French casement doors with fixed window sidelights
MIRO Pivot supply only trade aluminium internal glass door

Does Sieger do installation as well?

This service is mainly for builders and tradesmen who have experience installing glazing. We don’t install the systems however our glazing partner IQ Glass can provide a design and installation service using Sieger glazing systems for those unable to do so themselves, although this depends on the size of the project.

Alternatively, we do have some contacts who will install the systems for you, but this depends greatly on the location of the project.


What sets us apart from competitors?

There are many glazing suppliers who sell pre-made, off the shelf stocked glazing systems. At Sieger, each window, door and rooflight is designed completely bespoke for your project. This includes size, glazing specification, frame finish and ironmongery.

All of our external slim framed aluminium glazing systems use fully thermally broken frames for high thermal performance and come with a low e coating as standard. Sieger’s glazing systems are unmatched in both performance and design.

Our design team tailor each glazing solution to fit your specific design requirements and needs. This results in a unique glazing solution that is perfect for your project.


What is the process when ordering systems on a supply only basis?

Once you have contacted the Sieger team with drawings, measurements and any other information you have we can get a quote issued for you.

After a quote has been issued and accepted by you, the order can be placed. When the order has been placed we can get drawings designed ready for signing off. After approval, these designs go to fabrication and this is when the lead time starts. The glazing systems are manufactured at our state of the art bonding facility.

Once the system had been fabricated it will be ready for collection from us in Amersham.

Where can I see Sieger glazing systems?

We have a glazing showroom in Amersham where there is a wide range of our aluminium systems on display including a MIRO Internal Pivot Door, Sieger Legacy Systems and The Sieger Lux Bifold. The glazing showroom is one of England biggest and is more than just a showroom, it is an immersive experience where customers are able to see the systems working in real life situations.


How do I get in touch?

For more information contact our technical team who will be able to answer any questions and discuss your project in more detail.


To talk to the team, call 01494 722 882 or email sales@siegersystems.co.uk

three pane aluminium trade sliding glass door

Visit our Showroom

The Sky House Design Centre

We are here to help. Contact us for Quotations, Technical Information, General Information and more.

Our factory is fully open for fabrication and supply only orders.

Our showroom in Amersham is now open to visitors via appointment only. The Sieger Showroom has been deemed a Covid secure workplace and we have multiple rules in place to keep both visitors and staff safe. 

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