How Much Does Window Sills Replacement Cost in Ireland? (2026 Guide)

Replacing old, damaged, or cold-bridging window sills is a smart way to protect your home's structural integrity and improve energy efficiency. However, budgeting requires looking beyond just the material cost.

In Ireland in 2026, the complete cost to replace a window sill ranges from €180 to €450 per window. This includes the material supply, scaffolding setup (if required for upper floors), structural removal of the old masonry, disposal of waste, and local labor rates.

Cost Breakdown for Window Sill Replacement

Here is an average breakdown of the costs involved in replacing a standard 1.5-meter window sill on a residential property in Ireland:

• Material Supply (€45 - €120): This depends on whether you choose PVC, concrete, granite, or custom 2mm marine-grade powder-coated aluminium.
• Masonry Removal & Prep (€50 - €120): Demolishing a precast concrete or stone sill without damaging the underlying brickwork or cavity closure takes skilled labor and time.
• Fitting & Installation (€60 - €150): Installing the new sill, setting damp-proof courses (DPC), sealing the window frame joint, and finishing the external plaster/render reveals.
• Scaffolding & Access (€0 - €80): For ground floor windows, access is free. For upper levels, mobile scaffolding towers or MEWP access may be required for safety compliance.
• Waste Disposal (€10 - €30): Disposal fees for concrete or stone rubble.

Saving Money with Over-Cills

If your concrete sills are structurally sound but visually weathered, you can avoid demolition costs entirely by using aluminium over-cills (covers). These slip directly over the concrete, reducing the total labor cost by up to 60%.

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Looking for a competitive supply and fit quote for your window sill replacement project? Visit [Cills.ie](https://cills.ie) to configure your profiles and request a local survey. Download the free CILLS App on iOS or Android, or call our team at +353 1 223 8774.