The Easiest Way to Order
Custom Aluminium Cills, Flashings, Cappings and

The Easiest Way to Order Custom Aluminium Cills, Flashings, Cappings and

Aluminium Products

Measure on site with your phone, visualise instantly, and order custom cills, flashings, cappings and trims without back-and-forth quotes or drawings. The app is free to use, and you just pay for your products, with rapid turnaround and guaranteed accuracy.

Cills.ie is the fastest way to measure and order custom aluminium products — cills, flashings, cappings, trims and more.

Real-time tracking

Free Unlimited Use

Loved by 1.5k+ happy customers

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Trusted & Used By Professionals From

What is

Cills.ie?

Cills.ie is a digital ordering platform for aluminium products.

We help builders, retrofit contractors, insulation companies, and homeowners order aluminium window cills and profiles quickly, accurately, and stress-free.

With our platform you can:

Take guided measurements with step-by-step instructions.

Preview your order in 3D visualisation.

Select colours with a real-time RAL selector.

Design complex shapes like bay cills instantly.

Get engineer support on every order.

Track production with live updates until delivery.

Why Choose CILLS.IE for Your Aluminium Cills, Flashings & Cappings

Made-to-Measure Precision

Every product cut, bent, and powder-coated to exact size.

Made-to-Measure Precision

Every product cut, bent, and powder-coated to exact size.

Made-to-Measure Precision

Every product cut, bent, and powder-coated to exact size.

Full RAL Colour Range

Finishes guaranteed to match windows and façades.

Full RAL Colour Range

Finishes guaranteed to match windows and façades.

Full RAL Colour Range

Finishes guaranteed to match windows and façades.

Durability

Aluminium won’t rust, crack, or rot like timber or stone.

Durability

Aluminium won’t rust, crack, or rot like timber or stone.

Durability

Aluminium won’t rust, crack, or rot like timber or stone.

Retrofit-Ready

Works with SEAI external wall insulation systems.

Retrofit-Ready

Works with SEAI external wall insulation systems.

Retrofit-Ready

Works with SEAI external wall insulation systems.

Professional Finish

Clean, modern lines for both new builds and retrofits.

Professional Finish

Clean, modern lines for both new builds and retrofits.

Professional Finish

Clean, modern lines for both new builds and retrofits.

Low Maintenance

Long-lasting and easy to install.

Low Maintenance

Long-lasting and easy to install.

Low Maintenance

Long-lasting and easy to install.

the easy process to order aluminium products from cills.ie

Comparison: Traditional Suppliers

vs. Cills.ie

Traditional Aluminium Suppliers

Measuring errors are common — mistakes cost time and money.

Colour matching is guesswork with RAL charts.

Complex bay or angled cills require drawings and back-and-forth.

Orders placed by phone/email.

Little to no communication after ordering.

Supply only.

Not designed for retrofit.

Traditional suppliers give you hassle.

Guided measuring with 3D visualisation to ensure accuracy.

Live RAL selector in the app. If we measure, our devices connect to RAL’s official system for exact shade matching.

Bay cill design technology built into the app.

Digital app ordering in minutes.

Live order tracking and notifications at every stage.

3 service options: Supply Only / Measure+Supply / Full Service (measure → manufacture → deliver → fit).

SEAI-ready and retrofit-focused aluminium cills.

Cills.ie gives you certainty.

Custom Powder-Coated Colours for Every Aluminium Profile

Match any facade with RAL-certified powder coating. Our aluminium window cills, flashings, cappings, and trims are made-to-measure and finished in your exact colour - ideal for retrofit/EWI projects in Ireland and modern new builds. Preview shades in real time and order digitally for fast delivery.

RAL 7016

Slate Grey

RAL 7016

Slate Grey

RAL 7016

Slate Grey

RAL 7015

Archraclte Grey

RAL 7015

Archraclte Grey

RAL 7015

Archraclte Grey

RAL 7032

Pebble Grey

RAL 7032

Pebble Grey

RAL 7032

Pebble Grey

RAL 7044

Silk Grey

RAL 7044

Silk Grey

RAL 7044

Silk Grey

RAL 8028

Terra Brown

RAL 8028

Terra Brown

RAL 8028

Terra Brown

RAL 9003

Signal White

RAL 9003

Signal White

RAL 9003

Signal White

RAL 1000

Jet Black

RAL 1000

Jet Black

RAL 1000

Jet Black

RAL 1001

Green Beige

RAL 1001

Green Beige

RAL 1001

Green Beige

RAL 1002

Beige

RAL 1002

Beige

RAL 1002

Beige

RAL 1003

Sand Yellow

RAL 1003

Sand Yellow

RAL 1003

Sand Yellow

RAL 1004

Signal Yellow

RAL 1004

Signal Yellow

RAL 1004

Signal Yellow

RAL 1005

Honey Yellow

RAL 1005

Honey Yellow

RAL 1005

Honey Yellow

RAL 1006

Maize Yellow

RAL 1006

Maize Yellow

RAL 1006

Maize Yellow

RAL 1007

Daffodil Yellow

RAL 1007

Daffodil Yellow

RAL 1007

Daffodil Yellow

RAL 1008

Brown

RAL 1008

Brown

RAL 1008

Brown

RAL 1009

Yellow

RAL 1009

Yellow

RAL 1009

Yellow

RAL 1010

Cream

RAL 1010

Cream

RAL 1010

Cream

RAL 1011

Beige

RAL 1011

Beige

RAL 1011

Beige

RAL 1012

Light Beige

RAL 1012

Light Beige

RAL 1012

Light Beige

RAL 1013

Dark

RAL 1013

Dark

RAL 1013

Dark

RAL 1014

Maroon

RAL 1014

Maroon

RAL 1014

Maroon

Why Colour with

Cills.ie?

Any RAL colour: hundreds of architectural finished with UV-stable, durable coating.

Perfect matching: on-side measuring devices capture the exact RAL shade for windows and facades.

Made-to-measure aluminium: precision fabrication for cills, bay/angled cills, parapet cappings & weatherproof flashings.

Retrofit-ready: designed for SEAI external wall insulation systems with clean, watertight detailing.

Order in minutes: measure, preview colour, and track manufacturing & delivery inside the app.

Open Colour Picker

Who We

Help

Builders & Small Contractors

Faster ordering, reliable delivery, no delays.

person holding black and green power tool

man in yellow shirt and blue denim jeans jumping on brown wooden railings under blue and

Retrofit Contractors

SEAI-compliant aluminium cills for external insulation.

External Insulation Companies

Trims and flashings tailored to insulation depths.

cills ie is better for externla insulation

Window & Door Suppliers

Complete packages with aluminium cills included.

Architects & Engineers

Fabricated precisely to specification.

a man in blue overalls working on cement

Homeowners & Self-Builders

Professional-grade aluminium finishes made simple.

Choose Your

Service Level

Pick the plan that suits your workflow - self-service, split responsibility, or full-service.

You Measure -
We Manufacture

Measure in-app, we fabricate. Collect or delivery options available.

What's included:

Guided measuring with 3D preview to avoid errors.

Made-to-measure aluminium cills, flashings and trims.

Fast manufacture - choose factory collection or delivery.

Start Measuring

Perfect for builders who want speed and full control.

We Measure -
You Fit

Book a site visit. We take the measurements and deliver ready-to-fit parts.

What's included:

On-site measurement using calibrated devices for exact RAL matching.

Perfect for complex bay and angled cills.

Delivered to site - parts ready for your installers.

Book a Measure

Ideal for retrofit contractors who want professional measuring without the hassle.

We Measure -
Deliver & Fit

Full service: measurement, manufacture, delivery and professional fitting.

What's included:

End-to-end service - we manage the process and fit on-site.

Engineer-validated installation and QA on completion.

Perfect for homeowners or busy contractors who want turnkey solution.

Request Full Service

Full peace of mind - we handle everything from A to Z.

How it

Works

Measure

Use our app for step-by-step measuring with 3D previews.

Measure

Use our app for step-by-step measuring with 3D previews.

Measure

Use our app for step-by-step measuring with 3D previews.

Customise

Select your finish with our RAL colour selector.

Customise

Select your finish with our RAL colour selector.

Customise

Select your finish with our RAL colour selector.

Order

Place your order digitally in minutes.

Order

Place your order digitally in minutes.

Order

Place your order digitally in minutes.

Track

Get live updates while we manufacture.

Track

Get live updates while we manufacture.

Track

Get live updates while we manufacture.

Deliver or Collect

Choose nationwide delivery or collect from the factory.

Deliver or Collect

Choose nationwide delivery or collect from the factory.

Deliver or Collect

Choose nationwide delivery or collect from the factory.

What Our Clients

Are

Saying

Real stories from users who’ve transformed
their workflows with us.

Real stories from users who’ve transformed their workflows with us.

“Before Cills.ie, ordering aluminium cills was a nightmare—emails, quotes, and guesswork on angles. Now we measure on site in the app, pick the RAL and it’s ordered. Clients think we’re magic. Jobs finish faster, margins are better.”
Ciaran McManus
Builder • Dublin
“Four windows, all different reveals. The angle tool handled it perfectly. No rework, no on-site cutting, everything landed right first time.”
Shane Duffy
EWI Installer • Louth
“We used to wait 5–7 days for fabricator replies. Now it’s instant pricing and ordering. Seamless. Zero measurement errors so far.”
James O’Callaghan
Window Installer • Kildare

“Before Cills.ie, ordering aluminium cills was a nightmare—emails, quotes, and guesswork on angles. Now we measure on site in the app, pick the RAL and it’s ordered. Clients think we’re magic. Jobs finish faster, margins are better.”
Ciaran McManus
Builder • Dublin
“Four windows, all different reveals. The angle tool handled it perfectly. No rework, no on-site cutting, everything landed right first time.”
Shane Duffy
EWI Installer • Louth
“We used to wait 5–7 days for fabricator replies. Now it’s instant pricing and ordering. Seamless. Zero measurement errors so far.”
James O’Callaghan
Window Installer • Kildare

“Before Cills.ie, ordering aluminium cills was a nightmare—emails, quotes, and guesswork on angles. Now we measure on site in the app, pick the RAL and it’s ordered. Clients think we’re magic. Jobs finish faster, margins are better.”
Ciaran McManus
Builder • Dublin
“Four windows, all different reveals. The angle tool handled it perfectly. No rework, no on-site cutting, everything landed right first time.”
Shane Duffy
EWI Installer • Louth
“We used to wait 5–7 days for fabricator replies. Now it’s instant pricing and ordering. Seamless. Zero measurement errors so far.”
James O’Callaghan
Window Installer • Kildare

“We do SEAI retrofit works and always struggled with cills matching insulation depth. Cills.ie solved it—select exact depth, wings and colour. Fits perfectly with EPS + basecoat every time.”
Elaine Burke
External Insulation Contractor • Galway
“We tell every client we order through Cills.ie—most professional system we’ve used. Spec sheets in PDF/PNG are perfect for QS and client packs.”
Alan Griffin
Builder • Meath
“The app calculates bay angles precisely. Used it twice on extensions—each cill landed perfectly. Proper time saver.”
Patrick O’Donoghue
Builder • Limerick

“We do SEAI retrofit works and always struggled with cills matching insulation depth. Cills.ie solved it—select exact depth, wings and colour. Fits perfectly with EPS + basecoat every time.”
Elaine Burke
External Insulation Contractor • Galway
“We tell every client we order through Cills.ie—most professional system we’ve used. Spec sheets in PDF/PNG are perfect for QS and client packs.”
Alan Griffin
Builder • Meath
“The app calculates bay angles precisely. Used it twice on extensions—each cill landed perfectly. Proper time saver.”
Patrick O’Donoghue
Builder • Limerick

“We do SEAI retrofit works and always struggled with cills matching insulation depth. Cills.ie solved it—select exact depth, wings and colour. Fits perfectly with EPS + basecoat every time.”
Elaine Burke
External Insulation Contractor • Galway
“We tell every client we order through Cills.ie—most professional system we’ve used. Spec sheets in PDF/PNG are perfect for QS and client packs.”
Alan Griffin
Builder • Meath
“The app calculates bay angles precisely. Used it twice on extensions—each cill landed perfectly. Proper time saver.”
Patrick O’Donoghue
Builder • Limerick

“Ordered two bay cills in 7 minutes. The live status—Submitted, Priced, In Production, Coating, Ready— is brilliant. No chasing anyone.”
Conor Kelly
Builder • Cork
“Time is everything on insulation jobs. We ordered the same day and collected 48 hours later, powder coated to the exact RAL. Won’t go back.”
Liam Byrne
External Insulation Company • Galway
“The RAL selector alone is class. Clients pick colour on the spot—Jet Black, Silk Grey, whatever— and we lock it in. No chart guessing.”
Evan Doyle
Retrofit Contractor • Swords

“Ordered two bay cills in 7 minutes. The live status—Submitted, Priced, In Production, Coating, Ready— is brilliant. No chasing anyone.”
Conor Kelly
Builder • Cork
“Time is everything on insulation jobs. We ordered the same day and collected 48 hours later, powder coated to the exact RAL. Won’t go back.”
Liam Byrne
External Insulation Company • Galway
“The RAL selector alone is class. Clients pick colour on the spot—Jet Black, Silk Grey, whatever— and we lock it in. No chart guessing.”
Evan Doyle
Retrofit Contractor • Swords

“Ordered two bay cills in 7 minutes. The live status—Submitted, Priced, In Production, Coating, Ready— is brilliant. No chasing anyone.”
Conor Kelly
Builder • Cork
“Time is everything on insulation jobs. We ordered the same day and collected 48 hours later, powder coated to the exact RAL. Won’t go back.”
Liam Byrne
External Insulation Company • Galway
“The RAL selector alone is class. Clients pick colour on the spot—Jet Black, Silk Grey, whatever— and we lock it in. No chart guessing.”
Evan Doyle
Retrofit Contractor • Swords

Take Cills.ie Anywhere You Go

Plan, measure, and submit orders directly from your phone. No delays. No mistakes. Just fast, accurate aluminium product measuring designed to keep your job moving.

Take Cills.ie Anywhere You Go

Plan, measure, and submit orders directly from your phone. No delays. No mistakes. Just fast, accurate aluminium product measuring designed to keep your job moving.

Take Cills.ie Anywhere You Go

Plan, measure, and submit orders directly from your phone. No delays. No mistakes. Just fast, accurate aluminium product measuring designed to keep your job moving.

Frequently Asked

Questions

Have another question? Please contact
our team!

What is an aluminium window cill?

An aluminium window cill is a custom-made, powder-coated aluminium profile installed under a window to direct rainwater away from the building. At Cills.ie, all window cills are made-to-measure, fully weather-resistant, retrofit-ready, and compatible with external insulation systems, ICF blocks, and all major window brands in Ireland.