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Aluminium Flashing Profiles for EWI and Roofing

Aluminium Flashings

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

3-5 day turnaround

Free delivery over €150

Made in Dublin

Design Your Flashings

Watch Demo

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

Simple Upstand Flashing

Simple Downstand

Flashing

Live Platform Stats

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Window Cills Measured

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Saved from Measurement Errors

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Aluminium Waste Prevented

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Orders Delivered On Time

Built for External Insulation

The Flashings External Insulation

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

Arrives pre-formed—ready to install same day

Colour-matched to your render system (any RAL)

3-5 business day turnaround on all orders

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

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

Enter dimensions for each section (A, B, C, etc.)

Choose your RAL colour with live preview

Get instant pricing—no waiting for quotes

Delivered to site in 5-7 working days

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

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

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

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

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

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

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 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

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

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.

Any Profile Shape

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.

Superior Weatherproofing

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.

Coastal-Grade Durability

Premium aluminium with factory-applied powder coat withstands salt spray, industrial pollution and extreme weather.

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

3-5 business day turnaround on all orders

Pre-punched fixing holes available on request

Technical support from experienced metalworkers

Free delivery on orders over €150

Technical Specifications

Quality materials and finishes that meet the demands of professional construction

Material

Marine-Grade

Aluminium

Thickness Options

0.9mm / 1.2mm / 1.5mm

/ 2mm

Maximum Length

3000mm

Maximum Girth

600mm

Finish

Polyester Powder Coat

Colour Options

Any RAL Colour

Lead Time

3-5 Business Days

Warranty

10 Years

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.

Start Your Order

Talk to Our Team

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

Slate Grey

RAL 7015

Anthracite Grey

RAL 7032

Pebble Grey

RAL 7044

Silk Grey

RAL 8028

Terra Brown

RAL 9003

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.

Open Colour Picker

Explore More Products

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same precision and quality.

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Straight capping and corner pieces for walls and parapets.

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Bay & Complex Cills

Multi-segment bay windows designed piece by piece.

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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.