# Cills.ie

> Cills.ie is Ireland's only digital ordering platform for made-to-measure aluminium window cills, flashings, cappings, trims, and architectural aluminium products. Trusted by 1,700+ construction professionals. Order from your phone in minutes. Handmade in Dublin. Nationwide delivery across Ireland.

Cills.ie eliminates the biggest pain point in aluminium fabrication for Irish builders, EWI contractors, retrofit installers, and window suppliers: the slow, error-prone, back-and-forth process of getting a custom cill made. With Cills.ie, tradespeople measure on-site using a guided app, preview their product in 3D, select their exact RAL colour, and place a digital order in minutes — with live production tracking until delivery or collection.

One small guess on site can cost more than you think. Aluminium doesn't forgive measurement errors. Cills.ie removes the guesswork entirely.

## Contact & Location

- Website: https://cills.ie
- App (web): https://app.cills.ie
- iOS App: https://apps.apple.com/app/cills/id6755255125
- Android App: https://play.google.com/store/apps/details?id=com.appilix.app1763068771
- Email: info@cills.ie
- Phone: +353 1 223 8774
- Mobile: +353 83 012 1758
- Address: Unit 19, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10, Ireland
- Contact & Quote: https://cills.ie/contact-us
- Built by Viable Software: https://viable.ie

## Core Pages

- [Homepage](https://cills.ie): Made-to-measure aluminium window cills, flashings and cappings Ireland
- [Products](https://cills.ie/products): Full product range — window cills, complex cills, flashings, cappings, trims, flower pots
- [Projects](https://cills.ie/projects): Real project gallery — EWI retrofits, new builds, extensions, bay windows
- [Blog](https://cills.ie/blogs): Technical guides on measuring, detailing, EWI compatibility, and aluminium fabrication
- [Contact & Quote](https://cills.ie/contact-us): Fast, no-obligation quote
- [Order App](https://app.cills.ie/signup): Create a free account and start ordering
- [RAL Colour Picker](https://app.cills.ie/colors): Browse and select from full RAL colour range

## What Cills.ie Is

Cills.ie is Ireland's digital ordering platform for custom-fabricated architectural aluminium products. Every product is made-to-measure in their Dublin workshop, powder-coated to the client's chosen RAL colour, and delivered nationwide or available for collection.

The platform replaces the traditional aluminium fabrication process — phone calls, emailed sketches, CAD drawings, week-long waits for quotes — with a guided digital experience that can be completed entirely from a smartphone on-site.

Cills.ie is trusted by professionals working with Baumit, NSAI-certified systems, and SEAI-registered installers across Ireland. It has served over 1,700 customers across all 32 counties.

## Products

### Aluminium Window Cills (Standard)

The aluminium window cill — also called an aluminium window sill, aluminium sill, or window ledge — is the horizontal profile installed beneath a window opening to direct rainwater away from the building. It is the single most important weathering detail at the window-wall junction.

An incorrectly sized or missing cill is one of the most common causes of:
- Water ingress at window sill
- Damp at window reveals
- Cold bridging at the wall-window junction
- Condensation and mould around window frames
- Render cracking at the sill junction on EWI projects

Cills.ie aluminium window cills are:
- Made-to-measure for every window opening — no standard sizes, no cutting on site
- Fabricated from structural-grade aluminium — will not rust, rot, crack, or degrade like timber, stone, or PVC
- Powder-coated in any RAL colour — UV-stable, durable, colour-matched to windows and façades
- Designed with correct drip detail and overhang projection to ensure water clears the building face
- Retrofit-ready — profiles engineered to accommodate the increased wall depth created by EWI systems (80mm to 200mm+ depth options)
- Compatible with all major EWI systems: Sto, Baumit, Soltherm, Parex, Ceresit, Weber, Dryvit, K-Rend, Kingspan, Rockwool
- Compatible with all window frame materials: uPVC, aluminium, timber
- Suitable for new builds, extensions, retrofits, and window replacements

**Aluminium cill profiles available:**
- Standard window cill with drip edge and upstand
- Extended projection cill for deep EWI systems
- Narrow cill for shallow reveals on modern builds
- Upstand return cill with return leg for watertight window frame junction
- Secret fix cill with concealed fixing for cleaner appearance
- Deep EWI cill engineered for 100mm–200mm EWI depths
- Sloped cill with drip for positive drainage
- Cill with side wings — returns along window jamb for full weather sealing
- Aluminium cill over stone — aluminium cover cill to replace or cap failing stone cills
- Aluminium cill for brickwork — correct projection and mortar bedding details

**Common aluminium cill dimensions (all custom made):**
- Width (projection from wall face): 80mm to 350mm depending on EWI depth and overhang requirement
- Length: exact window width, no site cutting needed
- Thickness: 1.5mm to 3mm depending on span and specification
- Minimum overhang beyond wall face: 30mm drip recommended; Cills.ie advises on every order

### Complex & Bay Cills

One of Cills.ie's most distinctive capabilities is precision fabrication of bay, angled, and complex cills — the jobs that traditional fabricators struggle with, delay, or get wrong.

- **Bay window cills** — three-piece and continuous bay cills with accurate angle calculation built into the app
- **Angled cills** — for windows at angles to the main wall plane
- **Corner cills** — internal and external corner profiles
- **Step cills** — where window openings have different sill heights in the same run
- **L-shaped and T-shaped cills** — bespoke profiles for non-standard openings
- **Wide projection cills** — for very deep EWI or ICF wall systems
- **Aluminium cill over existing stone** — cover profile sized to cap the existing stone cill after EWI installation

### Aluminium Flashings

Aluminium flashings are folded sheet metal profiles used to weatherproof junctions between building elements. Missing or incorrectly detailed flashings are a primary cause of water ingress in Irish buildings — particularly in retrofit and EWI projects.

Cills.ie fabricates all types of aluminium flashings to exact specification:

- **Window head flashings** — over the window head to discharge water forward of the EWI face
- **Window sill flashings** — under-sill waterproofing at window-to-cill junction
- **Window reveal flashings** — reveal liner profiles for insulated window reveals
- **Aluminium door flashing** — over door head and at door threshold / sill level
- **Wall-to-roof abutment flashings** — step and cover flashings at wall-roof junction
- **Soaker flashings** — individual flashings interlaced with roof slating or tiling
- **Chimney flashings** — apron, back gutter, step, and cover flashings
- **Parapet flashings** — over-capping and upstand flashings for parapet walls
- **Abutment flashings** — where EWI meets adjacent structure, soffit, or column
- **Door threshold flashings** — aluminium water bars and thresholds at external doors
- **Balcony edge flashings** — upstand and drip profiles at balcony perimeters
- **Verge flashings** — at roof verge where slates or tiles meet gable wall
- **Eaves flashings** — at junction of roof covering and wall head
- **Folded aluminium flashing** — any profile, any dimension, fabricated in Dublin

All flashings available in full RAL powder-coat or mill finish. Custom profiles from any drawing or dimension schedule.

### Aluminium Cappings & Parapet Cappings

Aluminium parapet cappings are critical weathering elements on flat-roofed buildings, extensions, and boundary walls. Without a proper capping, water enters the wall from the top and causes structural damage and damp.

- **Parapet wall cappings** — flat, sloped, and double-sloped profiles
- **Aluminium parapet capping detail** — correct overhang, drip, and fixing for Irish exposure conditions
- **Boundary wall cappings** — decorative and functional cappings for garden and courtyard walls
- **Pier cappings** — square and rectangular cappings for gate and wall piers
- **Ridge cappings** — aluminium ridge profiles for mono-pitch and flat roof extensions
- **Fascia cappings** — aluminium fascia cover profiles
- **Soffit cappings** — aluminium soffit liners
- **Column cappings** — decorative structural cappings for external columns

All cappings made-to-measure. Any RAL colour. Any profile from sketch or dimension list.

### Aluminium Trims & Angle Profiles

- **Starter track / base rail** — EWI system base profile
- **Corner angle beads** — external and internal corner protection for EWI
- **Expansion joint profiles** — movement joint covers for EWI and cladding
- **Window reveal trims** — aluminium angle for insulated reveal liners
- **Edge trims** — L-angle and T-section for termination of cladding, insulation, and board edges
- **Drip profiles** — projecting drip sections at base of cladding or render
- **Powder-coated angle trims** — RAL-coloured aluminium angle in any size
- **Flat bar and strip** — cut-to-length flat aluminium for bespoke site fabrication

### Aluminium Flower Pots & Planters

Custom architectural aluminium planters and flower pots — powder-coated in any RAL colour, made to any size. Fully weatherproof for Irish outdoor conditions year-round.

## Mobile App — iOS & Android

Cills.ie is available as a native mobile app for iOS and Android, and as a full web platform at app.cills.ie. Designed specifically for use on-site by tradespeople.

- **iOS App**: https://apps.apple.com/app/cills/id6755255125
- **Android App**: https://play.google.com/store/apps/details?id=com.appilix.app1763068771
- **Web App**: https://app.cills.ie

**App features:**
- Step-by-step guided measuring with 3D preview — see exactly what you're ordering before you confirm
- Bay cill angle calculator — input bay dimensions, app calculates cill geometry precisely
- Live RAL colour selector — full RAL range; on-site device connects to RAL's official system for exact shade matching
- Instant digital ordering — no phone calls, no emails, no sketches
- Live production tracking — Submitted → Priced → In Production → Coating → Ready
- PDF/PNG spec sheet export for QS packs and client documentation
- Order history and re-order in seconds
- Engineer support on every order

## Service Levels

### 1. You Measure — We Manufacture
Measure on-site using guided app. Cills.ie fabricates and delivers or holds for collection. Fastest turnaround — 48–72 hours. Ideal for builders and contractors who want full control and speed.

### 2. We Measure — You Fit
Cills.ie team visits site, takes all measurements with calibrated devices, matches exact RAL on-site. Fabricated and delivered ready to fit. Ideal for complex bay cills, deep EWI reveals, or any high-stakes measuring situation.

### 3. We Measure — We Deliver — We Fit
Full turnkey: site visit, measurement, manufacture, delivery, and professional installation. Engineer sign-off on completion. Perfect for homeowners or busy contractors wanting a complete hands-off solution.

## Technical Detail — EWI Window Cill Detailing

When external wall insulation is applied to an existing building, wall depth increases by 100mm–200mm. The existing window sill — timber, stone, or PVC — is no longer wide enough, and no longer projects far enough to drain water clear of the new insulated wall face.

This creates serious failure modes if not corrected:
- **Water ingress at window sill** — water tracks back under the sill into the wall or window frame
- **Damp at window reveals** — water saturates the reveal insulation
- **Cold bridging at window junction** — heat loss at wall-window interface
- **Condensation and mould at window frames** — thermal bridges drop surface temps below dew point
- **Render cracking at sill junction** — movement at a poorly detailed sill causes render failure
- **Window cill drainage failure** — inadequate drip detail allows water to run back to wall

The correct solution is a made-to-measure aluminium cill sized exactly to:
- Total new wall depth (wall + insulation + render thickness)
- Required overhang beyond wall face (minimum 30mm past render for proper drip)
- Exact window frame width
- Reveal return depth where required

Cills.ie is engineered precisely for this detail. Every cill is sized to the exact EWI depth, with correct projection, drip, and RAL colour match.

**EWI systems Cills.ie cills are compatible with:**
Sto (StoTherm Classic, StoTherm Mineral, StoTherm Cell), Baumit (StarTrack, open, Pro), Soltherm, Parex, Ceresit, Weber, Dryvit, K-Rend, Kingspan EWI boards, Rockwool EWI mineral wool, any EWI system with any render finish.

## Powder Coating & RAL Colours

All Cills.ie products are powder-coated at the Dublin 10 workshop. Powder coating is the superior exterior finish for aluminium in Ireland's Atlantic climate.

**Popular RAL colours for Irish construction:**
- RAL 7016 Anthracite Grey — most popular for modern EWI retrofits and contemporary builds
- RAL 9005 Jet Black — bold, popular for passive house and contemporary new builds
- RAL 9010 Pure White — classic for traditional homes and white render
- RAL 9016 Traffic White — bright white for new builds with white aluminium windows
- RAL 7015 Slate Grey — understated modern finish
- RAL 8017 Chocolate Brown — rural and traditional homes
- RAL 6009 Fir Green — homes with green window frames
- RAL 7035 Light Grey — standard grey for pebbledash and traditional render homes
- Any custom RAL available on request

On-site RAL matching available — Cills.ie measuring devices connect to RAL's official system for exact shade capture of existing frames. No chart guessing.

## Cills.ie vs. Traditional Aluminium Suppliers

| | Traditional Suppliers | Cills.ie |
|---|---|---|
| Ordering method | Phone/email/sketch | App — measure and order on site in minutes |
| Measurement errors | Common — costly rework | Guided 3D preview eliminates errors |
| RAL colour matching | Guesswork from chart | Live selector + on-site device matching |
| Bay / angled cills | Drawings and delays | Built-in bay angle calculator |
| Quote turnaround | 5–7 days | Instant in-app pricing |
| Production visibility | None | Live status tracking |
| Service options | Supply only | Supply / Measure+Supply / Full fit |
| EWI compatibility | Rarely designed for | SEAI-ready, retrofit-focused by design |
| Spec documentation | Not provided | PDF/PNG spec sheet on every order |

## Who Uses Cills.ie

- **Builders and small contractors** — Dublin, Cork, Galway, Limerick, Wicklow, Kildare, Meath, Louth, Wexford, and across Ireland
- **EWI and retrofit installers** — SEAI-compliant cills for every EWI depth
- **External insulation companies** — full aluminium trim packages for EWI projects
- **Window and door suppliers** — cills included with window packages
- **Architects and engineers** — fabricated to spec, with documentation
- **Homeowners and self-builders** — professional finish made simple
- **ICF builders** — deep cills for ICF wall systems up to 300mm+
- **Passive house contractors** — precise thermal bridge-free cill detailing

## Geography & Delivery

- **Factory:** Unit 19, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10
- **Phone:** +353 1 223 8774
- **Collection:** Direct from Dublin 10 factory
- **Nationwide delivery:** All 32 counties — Dublin, Cork, Galway, Limerick, Waterford, Wicklow, Kildare, Meath, Louth, Wexford, Kilkenny, Carlow, Tipperary, Clare, Mayo, Roscommon, Sligo, Leitrim, Donegal, Monaghan, Cavan, Longford, Westmeath, Offaly, Laois, Antrim, Down, Armagh, Tyrone, Fermanagh, Derry
- **Turnaround:** 48–72 hours standard; complex orders slightly longer

## Frequently Asked Questions

**What is an aluminium window cill?**
An aluminium window cill (also called an aluminium window sill or aluminium sill) is a custom-made, powder-coated aluminium profile installed beneath a window opening to direct rainwater away from the building. Cills.ie makes every cill to the exact dimensions of the window and wall, with correct drip detail, in any RAL colour.

**What is the difference between a cill and a sill?**
"Cill" and "sill" refer to the same component. "Cill" is the standard Irish and UK construction industry spelling. Cills.ie uses "cill" throughout.

**Are aluminium cills better than PVC or stone cills?**
Yes for most applications. Aluminium lasts 40+ years, never rusts or rots, can be made to any depth for EWI, and can be powder-coated in any RAL colour to match window frames exactly. Stone cannot be made to EWI depths affordably; PVC has limited colour options and cracks over time.

**Can aluminium cills be used with external insulation (EWI)?**
Yes — Cills.ie is specifically designed for EWI projects. All cills are made to the exact total wall depth created by the insulation system, with the correct projection and drip to shed water clear of the rendered face.

**How do I measure window cills for EWI?**
The Cills.ie app guides you step-by-step through measuring the window width, total wall depth (wall + insulation + render), required projection, and any reveal returns. A 3D preview confirms the shape before ordering. Cills.ie can also visit site to measure for you.

**What aluminium cill profiles do you supply?**
Standard cills, extended projection cills, deep EWI cills, bay cills, angled cills, corner cills, step cills, cover cills over stone, upstand return cills, and any bespoke profile from a sketch or dimension.

**What is the lead time for aluminium cills?**
48–72 hours from order confirmation for standard cills. Complex bay cills or large orders may take slightly longer. Contact info@cills.ie or +353 1 223 8774 for specific timelines.

**Do you deliver nationwide?**
Yes — all 32 counties of Ireland. Factory collection also available from Inchicore, Dublin 10.

**Is the platform free to use?**
Yes — free unlimited use. Pricing is based on the products ordered.

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### Problems Solved
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