Aluminium Window Cills and Sills

Q: What is the difference between a window cill and a window sill?

“Cill” and “sill” are alternative spellings for the same feature at the base of a window. We use both terms to describe our bespoke external aluminium window cills.

Q: Can aluminium window sills be made to measure?

Yes. We manufacture aluminium window sills to project drawings, including straight profiles, faceted sections, fabricated curves and bespoke corner details. Dimensions and end arrangements are tailored to the window opening and adjoining facade.

Q: How far should an aluminium window sill project?

The projection should be coordinated with the finished facade so that the drip detail directs rainwater clear of the surface below. The appropriate dimension depends on the window position, wall build-up and project detailing.

Q: How thick should an aluminium window cill be?

Material thickness should be selected to suit the profile, dimensions, support arrangement and project requirements. Our team can review your drawings and discuss suitable fabrication options.

Q: What finishes are available for aluminium window sills?

Powder-coated and anodised finishes are available to complement or contrast with window frames and other architectural metalwork. The finish should be selected to suit the appearance, exposure and maintenance requirements of the project.

Q: What information do you need for a quotation?

Please send your drawings, quantities, dimensions and preferred finish, together with any requirements for corners, joints or stop ends. Include your delivery location and programme so we can review the complete requirement.

Watertight, weatherproof, and hard wearing aluminium cills

0121 327 0523

quotes@finisharchitectural.co.uk

Speak to us today

We manufacture bespoke aluminium, stainless steel and mild steel products for architectural projects across the UK. Send us your drawings or project requirements to discuss fabrication options, finishes and a quotation.

Bespoke Aluminium Window Cills Made to Your Specification

Our aluminium window cills, also known as window sills, are manufactured to your project drawings, providing a tailored finish at the base of window openings. Designed to help direct rainwater away from the facade, they combine practical weather protection with a clean appearance.

We work with architects, contractors and installers to manufacture aluminium sills for commercial and residential projects. From straight profiles to curved sections and bespoke corner details, each component is made to suit the window arrangement and surrounding facade, with finishes available to complement or contrast with adjacent materials.

Aluminium Window Sill Details and Bespoke Profiles

The right aluminium window sill detail needs to work with the window frame and surrounding facade. We manufacture to your drawings, accommodating the profiles, corners and end details required for each opening.

Straight cills can be supplied as finished components or in lengths with loose joints and stop ends for cutting on site. For more complex arrangements, we can manufacture faceted sections, fabricated curves and welded corners to suit the specified junction angles.

Cill ends can incorporate upstands or downturns to suit the adjoining construction and sealant detailing. Aluminium window cills can also form part of a bespoke window pod, helping coordinate the sill, head and side surrounds within one architectural feature.

Send us your window sill details and project drawings to discuss fabrication options and finishes.

Finish Architectural Aluminium Window Cill 6

Finish Architectural Aluminium Window Cill 4

Finish Architectural Aluminium Window Cill 3

Finishes for Aluminium Window Cills

Your aluminium window cills can match the surrounding window frames or introduce a contrasting colour to the facade. We offer powder-coated and anodised finishes to suit the architectural design and project requirements.

The choice of finish should also reflect the building’s location, exposure and maintenance needs. Our team can advise on suitable options and help coordinate the finish across cills, window pods and other architectural metalwork.

Save Time on Site

We manufacture to save you time on site; our inspected and approved products are delivered with a low tack tape for short-term protection, and are labelled with the order number and part reference number for quick and easy identification.

Featured Case Study

Canada Gardens

Supporting the ongoing development of Canada Gardens, Wembley City in conjunction with Everglade Windows and John Sisk.

Our Case Studies

Aluminium Window Cills: Frequently Asked Questions

Welcome to our FAQ page about Aluminium Window Cills. Here, we aim to provide concise and accurate answers to common questions regarding Aluminium Window Cills in the UK.

Looking for Bespoke Window Cills?

Trust Finish Architectural with your aluminium window cill needs. We fabricate bespoke designs to match your requirements and building's aesthetics, whether it is for a house, apartment or other project.

Reach out to us here for costs and more information.

What is the difference between a window cill and a window sill?

Can aluminium window sills be made to measure?

How far should an aluminium window sill project?

How thick should an aluminium window cill be?

What finishes are available for aluminium window sills?

What information do you need for a quotation?

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If you can draw it,
we can manufacture it
and deliver it on-time

Supporting the construction industry with value engineering, offering bespoke fabricated products in Aluminium, Stainless Steel & Mild Steel across the UK.

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