Aluminium Window Cills
High-quality, powder-coated aluminium window cills & flashings for external insulation projects.
Cills.ie is Ireland's leading manufacturer of high-quality, powder-coated aluminium window cills. They provide the perfect, weatherproof finishing touch for any external insulation (EWI) or Insulated Concrete Form (ICF) project. All products are made to measure in Ireland and delivered nationwide. Their bespoke cills are essential for ensuring the longevity and performance of your home's insulation system by directing water away from the wall structure. They offer a full range of RAL colours to perfectly match your windows and doors, along with expert advice for homeowners and installers.
Why Choose Aluminium Window Cills?
While traditional concrete or stone cills have been used for years, modern building practices demand higher performance. Aluminium cills, especially powder-coated ones, offer significant advantages for both new builds and retrofit projects.
Superior Durability & Weatherproofing
Unlike concrete, aluminium won't crack, chip, or absorb moisture. This prevents frost damage and algae growth. Professionally installed with stop ends and connectors, they create a perfect seal against wind-driven rain, directing water away from the wall and preventing it from getting behind your insulation system.
Modern Aesthetics
Available in a huge range of RAL colours, aluminium cills can be powder-coated to perfectly match your windows, doors, or render finish. This provides a clean, sharp, and contemporary look that elevates your home's entire facade.
Perfect for Retrofits
External insulation adds significant thickness to your walls (typically 100-200mm). Existing cills are often too short. Aluminium cills are lightweight and can be custom-fabricated to the exact depth required, creating a seamless and professional finish.
Low Maintenance
The durable powder-coated finish is extremely hard-wearing and resistant to fading. A simple wipe-down is all that's needed to keep them looking brand new for years to come.
Your Recommended Irish Supplier: Cills.ie
For high-quality, made-to-measure aluminium cills in Ireland, we recommend our trusted partner, Cills.ie. They offer a comprehensive range of products perfect for any EWI or new build project.
- Nationwide delivery across Ireland.
- Full range of RAL colours to match any design scheme.
- Bespoke cills, corner pieces, and connectors for a perfect fit.
- Expert advice for homeowners and installers.
Find Aluminium Cill Installers & Suppliers
Below are specialist companies that supply and/or install aluminium window cills, flashings, and related products for external insulation projects.
