Architectural precast
Precast window sills.
A full range of precast concrete window sills, organized by width. Precision-molded in Lumby, BC for durability and clean architectural lines. Don't see your size? We build custom.
Window sill FAQ
Questions, answered.
What are precast concrete window sills?
A precast concrete window sill is the cast ledge that sits under a window opening. It sheds water away from the wall and gives the opening a crisp, durable finish. We cast ours in Lumby, BC in a dense, freeze-thaw rated mix.
What widths do your window sills come in?
We stock a full range of widths from 2 inches up to 27 inches, sorted on this page so you can filter to the size you need. If your opening calls for a width or length we do not stock, we cast it custom.
Can you make a custom window sill or lintel?
Yes. Send us your dimensions and our in-house mold shop will craft a custom sill or lintel to fit your exact opening. Custom is what we do best.
Where can I buy Rocky Mountain Concrete window sills?
Our sills are stocked by building centres and masonry suppliers across Western Canada. Contact us and we will point you to your nearest dealer, or quote an order directly from our plant in Lumby, BC.
Need a custom sill or special length?
Send us your dimensions and our team will craft a custom sill to fit. Custom is what we do best.