Passive Sills

Super Lightweight, Thermally Efficient, & Cost effective Window Sills, Oversills, and Insulated Thresholds

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Passive Sills is the leading specialist provider of super lightweight, thermally efficient, insulated window sills, oversills, and thresholds. Compliant with all building regulations & energy efficiency standards, our products are designed and fabricated in our modern HQ and manufacturing facility in Youghal, Co. Cork.

Passive Sills products are recommended by leading architects, engineers & construction professionals. They are used by self-builders, construction developers, building firms, and local authorities for projects that range in size from small private residential projects to social public housing and large commercial projects.

Our products are recommended by leading architects, engineers and construction professionals. The product range is used extensively by construction developers, building firms and Local Authorities in private and social public housing, as well as in commercial developments.

For home energy efficiency improvements, whether you are self-building or a small contractor, your project will be future proofed when you include Passive Sills products.

Our product range offers excellent insulation values, reducing cold bridging and supporting improved BER performance. In addition, Passive Sills can manufacture bespoke insulated solutions as per architect specifications – please contact our team for more information.

All our products are manufactured to ISO 9001:2015 standards (certification is pending) and we have British Board of Agrément (BBA) certification for a selection of our window sill and oversill products.

Passive Sills is part of the Environmental Product Declaration (EPD) Programme of Ireland and all products carry a Declaration of Performance (DOP).

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