B2B Trade Supply // Ireland
One incorrect measurement on site leads to a useless cill, a delayed handover, and an idle install crew. Eliminate ordering guesswork and protect your project schedules.
WARNING: ONE WRONG MEASUREMENT COSTS MORE THAN A REORDER. IT COSTS A JOB.
// B2B Profile Menu
Standard B2B window sill profiles designed for standard cavities. Folded from 2mm marine-grade alloy to prevent thermal warping.
Compatible with standard masonry openings and retrofits.
Configure Profile →Bespoke variations matching specialized builder schedules. Formed with precise drip margins and pre-punched fixing slots.
Compatible with aluminium cladding and glazing systems.
Configure Profile →Deep-reveal profiles (up to 500mm depth) with welded stop-ends. Designed to divert water clear of insulated external envelopes.
Compatible with Baumit, Knauf, Rockwool, and SolTherm EWI systems.
Configure Profile →// Who This Is For
Varying insulation thickness causes reveal deviations on every window. We fold sills to your exact depth parameters, complete with high stop-ends to prevent render cracks.
Deep concrete reveals require specialized structural support. We supply heavy-gauge cills with pre-drilled brackets that mount securely to ICF block headers.
Cold-bridging voids airtight certification. Our profiles integrate thermal break gaskets, isolating the aluminium skin from the internal frame structure.
Matching old structure details calls for custom folders. We duplicate existing reveal parameters to fit historic masonry openings without masonry modifications.
// Operations Workflow
Verify dimensions on site using 3D guided checks. Locked entries go straight to production with zero manual transcript errors.
Select RAL finish, upstand margins, thermal isolators, and stop-end specifications directly in the digital portal.
We fold sheets to +/- 1mm CNC tolerances from marine alloy, then apply Qualicoat powder coating at our Dublin facility.
We deliver direct to your site in 3-5 days, or dispatch our technicians to fit the profiles across all 32 counties.
// System Interface
We fabricate reveal margins and drainage profiles compatible with major insulation and building brands:
// Risk Calculations
Average direct cost of a single custom sill reorder, including scrap materials, paint run, and emergency carriage.
Minimum project delay when waiting for replacement fabrication, halting renderers and scaffolding handovers.
Average rate of manual measurement errors on EWI retrofits when recorded using paper notes or phone orders.
// SEO FAQ
We fabricate extended aluminium sills designed specifically for External Wall Insulation (EWI). These sills feature deep reveal profiles (up to 400mm+) and high-sided welded stop-ends, preventing water from penetrating render boundaries in systems like Baumit, Knauf, Rockwool, and SolTherm.
Contractors measure on site using the Cills app. The app prompts you for the masonry opening, reveal thickness, frame offsets, and upstand clearances, generating a live 3D preview to verify dimensions before manufacturing.
Yes. We supply and distribute trade-grade aluminium sills and cills across all 32 counties of Ireland, with direct factory-to-site delivery within 3 to 5 working days.
There is no functional difference. "Sill" is the standard spelling, while "cill" is a common spelling variant used in Irish construction specifications and engineering drawings. Both refer to the weatherproofing profile installed at the base of a window opening.
Related fabrication: Check out our national Aluminium Cappings Ireland specifications and local Aluminium Cappings Dublin services.
Window sills also available to order at Sills.ie — Ireland's dedicated window sill ordering platform.
// Lock In Sizing
Order standard or deep reveal cills in minutes. Delivered direct to site across all 32 counties.