Aluminium Flashing Profiles for EWI and Roofing
Aluminium Flashing Profiles for EWI and Roofing
Aluminium Flashings
Aluminium Flashings
Aluminium Flashings
and Flashing Profiles
and Flashing Profiles
and Flashing Profiles
Made-to-measure aluminium flashings in any profile, any RAL colour, any dimension. Prevent water ingress around windows and protect your external wall insulation. Powder coated aluminium, delivered in 3-5 business days.
Trusted by 1000+ contractors
Trusted by 1000+ contractors
Trusted by 1000+ contractors
3-5 day turnaround
3-5 day turnaround
3-5 day turnaround
Free delivery over €150
Free delivery over €150
Free delivery over €150
Made in Dublin
Made in Dublin
Made in Dublin
Ridge Flashing
Gable Wall
Simple Upstand Flashing
Barge Board
L-Type Flashing
Simple Downstand
Flashing
Apron Flashing
Top Flashing
Custom Profiles
Eaves Flashing
Eaves Gutter
Corner Flashing
Bottom Flashing
Valley Gutter
V-Drip with Upstand
V-Drip with Upstand
Simple Upstand Flashing
Simple Downstand
Flashing
Live Platform Stats
Live Platform Stats
Live Platform Stats
Window Cills Measured
Window Cills Measured
Window Cills Measured
Saved from Measurement Errors
Saved from Measurement Errors
Saved from Measurement Errors
Aluminium Waste Prevented
Aluminium Waste Prevented
Aluminium Waste Prevented
Orders Delivered On Time
Orders Delivered On Time
Orders Delivered On Time
Built for External Insulation
Built for External Insulation
Built for External Insulation
The Flashings External Insulation
The Flashings External Insulation
The Flashings External Insulation
Contractors Trust
Contractors Trust
Contractors Trust
External wall insulation demands precision flashings that integrate seamlessly with render systems. Our 2mm aluminium flashings are engineered for EWI applications—strong enough for heavy-duty details, colour-matched to your render, and delivered in just 3-5 business days.
2mm thickness available for heavy-duty EWI applications
2mm thickness available for heavy-duty EWI applications
Arrives pre-formed—ready to install same day
Arrives pre-formed—ready to install same day
Colour-matched to your render system (any RAL)
Colour-matched to your render system (any RAL)
3-5 business day turnaround on all orders
3-5 business day turnaround on all orders
No minimum quantities—order what you need
No minimum quantities—order what you need
✗
The Problem with Lead
• Prices have tripled in 5 years
• Requires specialist lead bossing skills
• Health & safety concerns on site
• Theft magnet—delays projects
• Fatigue cracking at stress points
✓
Cills Aluminium Flashings
• Fixed pricing—no metal market volatility
• Pre-formed, ready to screw and seal
• Safe to handle, no special PPE needed
• No scrap value to thieves
• 10-year warranty, 25+ year lifespan
Easy Ordering
Easy Ordering
Easy Ordering
How to Measure Your Flashings
How to Measure Your Flashings
How to Measure Your Flashings
Our guided measurement tool makes ordering custom flashings simple. Just enter your dimensions for each leg of the profile and we'll manufacture to your exact specification.
Select your flashing profile type
Select your flashing profile type
Enter dimensions for each section (A, B, C, etc.)
Enter dimensions for each section (A, B, C, etc.)
Choose your RAL colour with live preview
Choose your RAL colour with live preview
Get instant pricing—no waiting for quotes
Get instant pricing—no waiting for quotes
Delivered to site in 5-7 working days
Delivered to site in 5-7 working days



Flashing Profiles for Every Detail
Flashing Profiles for Every Detail
Flashing Profiles for Every Detail
From standard drip flashings to complex multi-bend profiles, we
manufacture the exact shape your project requires.
Ridge Flashing
Covers the apex of a pitched roof where twoslopes meet. Essential for weatherproof ridgedetails.
Common Applications:
Roof ridges
Roof peaks
Hip junctions
Apex details
Ridge Flashing
Covers the apex of a pitched roof where twoslopes meet. Essential for weatherproof ridgedetails.
Common Applications:
Roof ridges
Roof peaks
Hip junctions
Apex details
Barge Board
Protects the verge edge of a gable roof. Popularwith EWI contractors for neat gable terminations.
Common Applications:
Gable verges
Fascia junctions
Roof edges
EWI gable details
Barge Board
Protects the verge edge of a gable roof. Popularwith EWI contractors for neat gable terminations.
Common Applications:
Gable verges
Fascia junctions
Roof edges
EWI gable details
Apron Flashing
Creates a watertight junction where a roof meetsa wall. Essential for lean-to and extensionabutments.
Common Applications:
Roof to wall junctions
Dormer cheeks
Lean-to extensions
Chimney abutments
Apron Flashing
Creates a watertight junction where a roof meetsa wall. Essential for lean-to and extensionabutments.
Common Applications:
Roof to wall junctions
Dormer cheeks
Lean-to extensions
Chimney abutments
Eaves Flashing
Directs water into the gutter at the roof edge.Critical for proper rainwater management.
Common Applications:
Eaves details
Fascia interfaces
Gutter junctions
Roof terminations
Eaves Flashing
Directs water into the gutter at the roof edge.Critical for proper rainwater management.
Common Applications:
Eaves details
Fascia interfaces
Gutter junctions
Roof terminations
Corner Flashing
Pre-formed internal and external cornerseliminate site joints—the most common source ofwater ingress.
Common Applications:
External corners
Window jambs
Internal corners
EWI reveals
Corner Flashing
Pre-formed internal and external cornerseliminate site joints—the most common source ofwater ingress.
Common Applications:
External corners
Window jambs
Internal corners
EWI reveals
Valley Gutter
Channels rainwater where two roof slopes meetat an internal angle. High-capacity V-profile.
Common Applications:
Roof valleys
Dormer valleys
Internal roof junctions
Complex roof shapes
Valley Gutter
Channels rainwater where two roof slopes meetat an internal angle. High-capacity V-profile.
Common Applications:
Roof valleys
Dormer valleys
Internal roof junctions
Complex roof shapes
Gable Wall
Seals the junction between the roof slope andgable wall. Critical for EWI and render systems.
Common Applications:
Gable walls
Render abutments
Verge details
EWI terminations
Gable Wall
Seals the junction between the roof slope andgable wall. Critical for EWI and render systems.
Common Applications:
Gable walls
Render abutments
Verge details
EWI terminations
L-Type Flashing
Simple right-angle profile for a wide range ofapplications. The most versatile flashing shape.
Common Applications:
Wall to floor junctions
General purpose
Window reveals
Cladding interfaces
L-Type Flashing
Simple right-angle profile for a wide range ofapplications. The most versatile flashing shape.
Common Applications:
Wall to floor junctions
General purpose
Window reveals
Cladding interfaces
Top Flashing
Covers the top of wall openings with an angleddrip edge to shed water away from the detail.
Common Applications:
Window heads
Lintel covers
Door heads
Opening tops
Top Flashing
Covers the top of wall openings with an angleddrip edge to shed water away from the detail.
Common Applications:
Window heads
Lintel covers
Door heads
Opening tops
Eaves Gutter
U-channel profile that collects and directsrainwater from eaves. Integrates with standarddownpipes.
Common Applications:
Eaves collection
Concealed gutters
Box gutters
Parapet outlets
Eaves Gutter
U-channel profile that collects and directsrainwater from eaves. Integrates with standarddownpipes.
Common Applications:
Eaves collection
Concealed gutters
Box gutters
Parapet outlets
Bottom Flashing
Z-profile for base of wall details and cill junctions.Popular for EWI starter track applications.
Common Applications:
Base of wall
DPC interfaces
Cill junctions
EWI starter tracks
Bottom Flashing
Z-profile for base of wall details and cill junctions.Popular for EWI starter track applications.
Common Applications:
Base of wall
DPC interfaces
Cill junctions
EWI starter tracks
V-Drip with Upstand
A custom profile with a V-shaped drip and avariable height upstand on the right.
Common Applications:
Drip details
Window heads
Water shedding
EWI terminations
V-Drip with Upstand
A custom profile with a V-shaped drip and avariable height upstand on the right.
Common Applications:
Drip details
Window heads
Water shedding
EWI terminations
Simple Upstand Flashing
A simple L-shaped flashing with an optionalupstand for returning into a wall.
Common Applications:
Wall abutments
Cladding interfaces
Parapet details
EWI terminations
Simple Upstand Flashing
A simple L-shaped flashing with an optionalupstand for returning into a wall.
Common Applications:
Wall abutments
Cladding interfaces
Parapet details
EWI terminations
Simple Downstand Flashing
A profile with a straight downstand on the right,controlled by measurement 'A'.
Common Applications:
Drip edges
Window heads
Fascia details
Cladding terminations
Simple Downstand Flashing
A profile with a straight downstand on the right,controlled by measurement 'A'.
Common Applications:
Drip edges
Window heads
Fascia details
Cladding terminations
Custom Profiles
Complex shapes and non-standard detailsmanufactured to your drawing or specification.
Common Applications:
EWI specials
Heritage repairs
Retrofit solutions
Cladding terminations
Custom Profiles
Complex shapes and non-standard detailsmanufactured to your drawing or specification.
Common Applications:
EWI specials
Heritage repairs
Retrofit solutions
Cladding terminations
Ridge Flashing
Covers the apex of a pitched roof where twoslopes meet. Essential for weatherproof ridgedetails.
Common Applications:
Roof ridges
Roof peaks
Hip junctions
Apex details
Apron Flashing
Creates a watertight junction where a roof meetsa wall. Essential for lean-to and extensionabutments.
Common Applications:
Roof to wall junctions
Dormer cheeks
Lean-to extensions
Chimney abutments
Corner Flashing
Pre-formed internal and external cornerseliminate site joints—the most common source ofwater ingress.
Common Applications:
External corners
Window jambs
Internal corners
EWI reveals
Gable Wall
Seals the junction between the roof slope andgable wall. Critical for EWI and render systems.
Common Applications:
Gable walls
Render abutments
Verge details
EWI terminations
Top Flashing
Covers the top of wall openings with an angleddrip edge to shed water away from the detail.
Common Applications:
Window heads
Lintel covers
Door heads
Opening tops
Bottom Flashing
Z-profile for base of wall details and cill junctions.Popular for EWI starter track applications.
Common Applications:
Base of wall
DPC interfaces
Cill junctions
EWI starter tracks
Simple Upstand Flashing
A simple L-shaped flashing with an optionalupstand for returning into a wall.
Common Applications:
Wall abutments
Cladding interfaces
Parapet details
EWI terminations
Custom Profiles
Complex shapes and non-standard detailsmanufactured to your drawing or specification.
Common Applications:
EWI specials
Heritage repairs
Retrofit solutions
Cladding terminations
Barge Board
Protects the verge edge of a gable roof. Popularwith EWI contractors for neat gable terminations.
Common Applications:
Gable verges
Fascia junctions
Roof edges
EWI gable details
Eaves Flashing
Directs water into the gutter at the roof edge.Critical for proper rainwater management.
Common Applications:
Eaves details
Fascia interfaces
Gutter junctions
Roof terminations
Valley Gutter
Channels rainwater where two roof slopes meetat an internal angle. High-capacity V-profile.
Common Applications:
Roof valleys
Dormer valleys
Internal roof junctions
Complex roof shapes
L-Type Flashing
Simple right-angle profile for a wide range ofapplications. The most versatile flashing shape.
Common Applications:
Wall to floor junctions
General purpose
Window reveals
Cladding interfaces
Eaves Gutter
U-channel profile that collects and directsrainwater from eaves. Integrates with standarddownpipes.
Common Applications:
Eaves collection
Concealed gutters
Box gutters
Parapet outlets
V-Drip with Upstand
A custom profile with a V-shaped drip and avariable height upstand on the right.
Common Applications:
Drip details
Window heads
Water shedding
EWI terminations
Simple Downstand Flashing
A profile with a straight downstand on the right,controlled by measurement 'A'.
Common Applications:
Drip edges
Window heads
Fascia details
Cladding terminations
Built for Irish Weather
Built for Irish Weather
Built for Irish Weather
Our flashings are engineered to withstand decades of Atlantic storms, coastal salt spray, and everything Ireland's climate can throw at them.
Bespoke Dimensions
Every flashing precision-formed to your exact millimetre measurements. No on- site cutting, no material waste, guaranteed perfect fit.
Every flashing precision-formed to your exact millimetre measurements. No on- site cutting, no material waste, guaranteed perfect fit.
Any Profile Shape
Stepped flashings, Z-bars, drip trays, parapet cappings, corner pieces—we manufacture any profile your detail requires.
Stepped flashings, Z-bars, drip trays, parapet cappings, corner pieces—we manufacture any profile your detail requires.
Full RAL Colour Range
Match existing finishes precisely with any RAL code. Our live preview shows your exact colour before you order.
Match existing finishes precisely with any RAL code. Our live preview shows your exact colour before you order.
Superior Weatherproofing
Precision-formed bends and drip edges channel water away from critical junctions. Protect your most vulnerable building details.
Precision-formed bends and drip edges channel water away from critical junctions. Protect your most vulnerable building details.
Fade-Proof Finish
Marine-grade polyester powder coating resists UV degradation. Your flashings maintain their colour for 25+ years.
Marine-grade polyester powder coating resists UV degradation. Your flashings maintain their colour for 25+ years.
Coastal-Grade Durability
Premium aluminium with factory-applied powder coat withstands salt spray, industrial pollution and extreme weather.
Premium aluminium with factory-applied powder coat withstands salt spray, industrial pollution and extreme weather.
Why Order from Cills.ie?
Why Order from Cills.ie?
Why Order from Cills.ie?
We've made ordering custom flashings as simple as ordering online—because it is.
Trusted by external insulation contractors
nationwide
Trusted by external insulation contractors
nationwide
2mm thickness available for heavy-duty EWI
applications
2mm thickness available for heavy-duty EWI
applications
No minimum order quantities—order one flashing
or one hundred
No minimum order quantities—order one flashing
or one hundred
Instant online pricing with no waiting for quotes
Instant online pricing with no waiting for quotes
3-5 business day turnaround on all orders
3-5 business day turnaround on all orders
Pre-punched fixing holes available on request
Pre-punched fixing holes available on request
Technical support from experienced metalworkers
Technical support from experienced metalworkers
Free delivery on orders over €150
Free delivery on orders over €150
Technical Specifications
Technical Specifications
Technical Specifications
Quality materials and finishes that meet the demands of professional construction
Quality materials and finishes that meet the demands of professional construction
Material
Material
Material
Marine-Grade
Aluminium
Thickness Options
Thickness Options
Thickness Options
0.9mm / 1.2mm / 1.5mm
/ 2mm
Maximum Length
Maximum Length
Maximum Length
3000mm
Maximum Girth
Maximum Girth
Maximum Girth
600mm
Finish
Finish
Finish
Polyester Powder Coat
Colour Options
Colour Options
Colour Options
Any RAL Colour
Lead Time
Lead Time
Lead Time
3-5 Business Days
Warranty
Warranty
Warranty
10 Years
Ready to Order Custom Flashings?
Ready to Order Custom Flashings?
Ready to Order Custom Flashings?
Enter your measurements, choose your colour, and get instant pricing. Your made-to-measure flashings delivered to site in 5-7 working days.
Custom Powder-Coated Colours for Every Aluminium Window Cill
Custom Powder-Coated Colours for Every Aluminium Window Cill
Custom Powder-Coated Colours for Every Aluminium Window Cill
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.
RAL 7016
RAL 7016
RAL 7016
Slate Grey
Slate Grey
Slate Grey
RAL 7015
RAL 7015
RAL 7015
Anthracite Grey
Anthracite Grey
Anthracite Grey
RAL 7032
RAL 7032
RAL 7032
Pebble Grey
Pebble Grey
Pebble Grey
RAL 7044
RAL 7044
RAL 7044
Silk Grey
Silk Grey
Silk Grey
RAL 8028
RAL 8028
RAL 8028
Terra Brown
Terra Brown
Terra Brown
RAL 9003
RAL 9003
RAL 9003
Signal White
Signal White
Signal White
Why Colour with Cills.ie?
Any RAL colour: hundreds of architectural finishes with UV-stable,
durable coating.
Any RAL colour: hundreds of architectural finishes with UV-stable,
durable coating.
Perfect matching: on-site measuring devices capture the exact RAL
shade for windows and facades.
Perfect matching: on-site 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.
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.
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.
Order in minutes: measure, preview colour, and track manufacturing &
delivery inside the app.



Explore More Products
All our aluminium products are designed and manufactured in Ireland with the
same precision and quality.
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.

