Why Cills.ie is Different
We are not trying to compete on price alone. We are building the reference standard for aluminium window cills in Ireland.
"We are not trying to become another aluminium fabricator. Our focus is not producing the most cills. Our focus is producing the right cills."
No Guesswork
We invest heavily in technical drawings, calculators, installation guidance, revision history, and technical documentation. Detailing aluminium window cills should never rely on guesswork on site.
Reference Standard
We are building the reference standard for aluminium window cills in Ireland. Every profile we design is engineered to address the specific physical requirements of high-performance envelopes.
Made to Measure
Every window opening is unique, especially when accounting for outer finished renders. Our made-to-measure approach prevents raw edge exposure, eliminates leaks, and cuts out on-site modifications.
Complete Experience
The product itself is only one part of the customer experience. From clear guides to precise calculators and responsive support, our objective is simple: Deliver the best aluminium window cill buying experience in Ireland.
Designed with Industry Expertise
The published Cills.ie detail has been refined with feedback from experienced Irish ICF installers. Every significant improvement is documented through a public revision history, ensuring the detail continues to evolve alongside best practice on site.
Instead of competing solely on thin margins and high volumes, we focus on engineering integrity. Our window cill systems feature continuous back upstands, integrated stop-ends, and pre-formed render terminators to protect the external wall insulation (EWI) and Insulated Concrete Form (ICF) layers from water ingress.