
Aluminium Flashings – Custom Made & Powder Coated
Aluminium Flashings – Custom Made & Powder Coated
At Cills.ie, we manufacture precision aluminium flashings designed to protect, seal, and finish your building projects. All flashings are made-to-measure, powder-coated in any RAL colour, and delivered with fast turnaround and live tracking through our free app.
At Cills.ie, we manufacture precision aluminium flashings designed to protect, seal, and finish your building projects. All flashings are made-to-measure, powder-coated in any RAL colour, and delivered with fast turnaround and live tracking through our free app.


What are Aluminium Flashings?
Flashings are thin, shaped aluminium profiles used to prevent water ingress and provide a neat finish on building details. They are essential for keeping water away from joints, roof edges, windows, and insulation systems.
Flashings are thin, shaped aluminium profiles used to prevent water ingress and provide a neat finish on building details. They are essential for keeping water away from joints, roof edges, windows, and insulation systems.
Flashings are thin, shaped aluminium profiles used to prevent water ingress and provide a neat finish on building details. They are essential for keeping water away from joints, roof edges, windows, and insulation systems.



Aluminium flashings are stronger, lighter, and more durable than PVC or galvanised steel alternatives, making them the professional choice for retrofit, external wall insulation (EWI), and new builds.
Benefits of Aluminium Flashings from Cills.ie
Custom Fabrication – flashings are cut, folded, and bent to your exact measurements.
Full RAL Colour Range – powder-coated to match windows, cills, and façades.
Weather Resistance – protects against water ingress and ensures long-term durability.
Professional Finish – sharp, modern lines for both retrofit and new builds.
Retrofit Ready – designed to integrate with SEAI-approved external insulation systems.


Custom Powder-Coated Colours for Every Aluminium Profile
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.
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
Sild Grey
RAL 7044
Sild Grey
RAL 7044
Sild 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 choose
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.



Our Projects
Our Projects
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.
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.
External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

External Wall Insulation Retrofit, Dublin
Retrofit contractor avoided thermal bridging, passed SEAI inspection, and completed the project on schedule. The powder-coated finish matched perfectly with the windows and façade.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Bay Window Installation, Cork
Using our app, the builder measured and ordered a bay cill with angles in minutes. Manufactured and delivered within the week, ensuring a perfect fit for a tricky corner window detail.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

Commercial Fit-Out, Galway
Architects achieved a sharp, modern look with seamless aluminium detailing. The parapet walls were protected with powder-coated cappings, ensuring long-term durability against weather.

Frequently Asked
Questions
Have another question? Please contact
our team!
What are aluminium flashings used for?
Flashings are used to protect and seal vulnerable areas of a building — such as roof edges, window junctions, and insulation joints — preventing water ingress and ensuring a professional finish.
What are aluminium flashings used for?
Flashings are used to protect and seal vulnerable areas of a building — such as roof edges, window junctions, and insulation joints — preventing water ingress and ensuring a professional finish.
What are aluminium flashings used for?
Flashings are used to protect and seal vulnerable areas of a building — such as roof edges, window junctions, and insulation joints — preventing water ingress and ensuring a professional finish.
Can I order custom aluminium flashings?
Can I order custom aluminium flashings?
Can I order custom aluminium flashings?
What colours are available?
What colours are available?
What colours are available?
Are aluminium flashings suitable for retrofit projects?
Are aluminium flashings suitable for retrofit projects?
Are aluminium flashings suitable for retrofit projects?
How do I order flashings?
How do I order flashings?
How do I order flashings?
Start Ordering Aluminium Window Cills Today
Cills.ie makes it easy to measure, customise, and order aluminium cills, flashings, trims, and cappings — all online, with engineer support included.

