Blog // Technical Articles
When a window sill splits or you need custom flashings for a building project, your first instinct is likely to search for "window sills near me" on Google to find a local builders' merchant in Dublin, Cork, Galway, or Limerick.
While buying off-the-shelf window sills from a local builder merchant is convenient, it is rarely the best investment. Local merchants carry limited, fixed sizes that do not account for reveal variations, EWI depth needs, or custom RAL window frame colours. Ordering custom-fabricated sills online from CILLS.ie with nationwide delivery is a far better investment, ensuring a 100% accurate fit.
CILLS.ie eliminates these compromises. By using our online 3D configurator on your phone or tablet on site, you enter your exact millimeter measurements, select your RAL colour, and order. We fabricate the sills in our Kylemore Road workshop and ship them directly to your site anywhere in Ireland in 3 to 5 days, with 0% measurement error.
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Skip the merchant compromises. Visit [Cills.ie](https://cills.ie) to configure and order custom made-to-measure window cills in 3D. Download the free CILLS App on iOS or Android, or contact our Dublin workshop at +353 1 223 8774.

// Direct Fabrication Supply
Specify your window sills, cappings, or flashings with millimetre accuracy. Watch the 3D preview build in real time and submit your order directly to our CNC machines.
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Need window cills, cappings, or trims fabricated to your site dimensions? Configure in 3D and order on Cills.ie.
Start Measuring →// B2B Feedback
We work with leading residential developers, external wall insulation (EWI) installers, and commercial contractors across Ireland.
"Fabricator.ie and the Cills app have completely transformed our window sill specification. By scanning reveals and locking in 3D dimensions, we eliminated ordering errors entirely. Site measurement and fitting services are flawless."
"For retrofitted external insulation, reveal depths vary constantly. The ability to configure deep reveal aluminium cills (350mm+) with exact welded stop-ends and receive them in 3-5 days is a game changer for our schedules."
"We specify Fabricator.ie for our high-end residential and commercial projects. Their 2mm marine-grade alloy and Qualicoat powder coating finishes meet our strict specifications for coastal wind-load and salt-spray protection."
// Article FAQs
Yes, our technical guides are free to share under standard attribution, designed to assist contractors, specifiers, and architects in Ireland.
You can download our CAD files or configure the dimensions directly on the Cills app to match the instructions in these guides.