Natural Slate Window Sills
Upgrade your project with premium natural slate window sills (also known as window cills) in graphite and grey green. Cut from high-quality Brazilian slate with a fine riven face and neatly sawn edges, these sills provide a clean architectural line and long-lasting performance for both internal and external installations.
Why Choose Slate Window Sills?
Slate offers a timeless look that complements brick, render and stonework. It is dense, durable and weather-resistant, making it ideal beneath exposed openings. Fit with a slight fall and a small overhang to help shed water away from the wall and reduce the risk of staining and water ingress.
Sizes & Finishes
Available as parent products with multiple size variants for straightforward selection at checkout. Choose graphite for a deep contemporary tone or grey green for a softer, heritage feel. Thickness and edge finish are designed to suit modern refurbishments and traditional restorations alike.
Features & Benefits:
- Authentic Brazilian natural slate for lasting durability
- Fine riven face with crisp sawn edges for a clean look
- Suitable for interior and exterior window openings
- Graphite and grey green options to suit modern or heritage styles
- Low maintenance surface that ages gracefully
Related Categories
Why Choose Trusted Building Supplies?
- Trade-quality materials with clear, accurate product details
- Nationwide delivery and reliable lead times
- Helpful customer support from a UK-based team
- Secure online checkout with fast order processing
Ready to Order?
Browse graphite and grey green slate window sills and pick the size that fits your project. Add to basket and enjoy fast UK delivery from Trusted Building Supplies.
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