Window Sill Designs

Enhance the character of your façade with premium Window Sill Designs by Foamstone. Our architectural window sills are crafted to deliver the timeless look of stone with the advantages of modern lightweight construction—making them ideal for both new builds and renovations.

Window Sill Designs

Refined Architectural Detail

Window sills are more than a finishing touch—they define depth, proportion, and elegance around every opening. Foamstone window sills add clean lines and subtle shadowing that elevate residential and commercial exteriors, from classic to contemporary styles.

Built for Performance

Our window sills are engineered with a high-density EPS core and reinforced with a durable cementitious coating for long-lasting exterior use.

Key Benefits

Lightweight Construction – Faster installation with reduced labor and structural load

Weather Resistant – Designed to withstand moisture, heat, and UV exposure

Non-Organic & Pest Resistant – Will not rot, warp, or attract insects

Custom Orders

Looking for something unique? Our team specializes in custom window sill designs tailored to your project’s specifications. From matching existing architecture to creating bold new accents, we deliver precision-crafted solutions with consistent quality.

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