Stone window sills made to your measurements
A window sill is a small surface, but you see it every day. We measure the depth and width on site, machine the sills on CNC machines in our own factory and install them. Delivery and installation in Finland — 14 working days from drawing approval.
What should you consider with a stone window sill?
With a window sill, the dimensions and edges are decisive. We measure the depth from the frame to the surface of the inner wall, the width between the reveals and how far the sill projects in front of the wall. At the same time we agree on the edge profile, the treatment of the sides and whether the sill is set inside the reveals or gets corner pieces at the sides. Small decisions show in the result more than you might think, so we go through them with you already at measuring. Several windows are always measured one by one. This keeps the shade and dimensions consistent.
A window sill is often above a radiator, so heat resistance is worth considering. Quartz handles normal heating well, but it is not the most heat-resistant material, so hot items should not be placed directly on the surface. Granite and ceramic withstand heat and the sun’s UV light clearly better, which shows in south-facing windows. Marble is beautiful, but more sensitive to acids and marks from flower pots. We tell you with the samples what suits your window. The choice also depends on the rest of the interior.
What you get when you order directly from the factory
Dimensions for every window separately
Few window openings are exactly alike, so we measure each one separately and machine the sills to their own dimensions. The pieces are marked, so the right sill goes into the right window.
Edges and corners finished
The front edge is ground according to the chosen profile and the visible sides are finished in the same way. Corner pieces and side profiles are made at the factory, so no gaps are left at the wall.
The same stone as the worktop
Window sills can be cut from the same slab batch as the kitchen worktop or the bathroom vanity top. The shade and pattern continue from room to room when you order everything at once.
Withstands radiator heat
Stone does not warp or crack in radiator heat like wood or a painted board. Granite and ceramic withstand heat and the sun’s UV light particularly well.
Which stone suits this use?
We help you choose the material according to the use, style and budget. We machine all of the below in our own factory.
Quartz
An even shade and a dense surface that wipes clean easily. Withstands normal radiator heat, but hot items should not be placed directly on the sill.
Granite
Withstands heat, sunlight and knocks. A good choice for a south-facing window and where flowers are kept on the sill.
Marble
Living patterns that suit an old house and a light interior. More sensitive to acids, so watering marks are wiped away and the surface is sealed.
Ceramic
Withstands heat, UV light and scratches. A thin 12 mm slab suits a narrow sill and places where a restrained look is wanted.
Dimensions, thicknesses and options
- Thicknesses20 and 30 mm, ceramic 12 mm
- DimensionsDepth and width to suit the window
- Edge profilesStraight, chamfer, rounded
- PagesStraight end, corner piece or side profile
- SurfacesPolished, matt, brushed
- Delivery and installation14 working days from drawing approval, all of Finland
See also: edge profiles · corner finishes · ordering instructions
From measuring to installation
Measuring
We measure each window opening separately: depth from the frame to the wall surface, width between the reveals and the projection forward. We agree on the edge profile and the treatment of the sides. The sills are marked by room.
Manufacturing in our own factory
The sills are cut and ground on CNC machines in our factory in Estonia. The front edge is profiled, the visible ends are finished and the necessary corner pieces are made from the same slab. All dimensions are checked before packing.
Delivery
Delivery and installation in Finland — 14 working days from drawing approval. The sills arrive marked and protected, and we agree on the installation day so that painting work is not in progress.
Installation
We install the sills, level the heights and seal the joints to the frame and the wall. We check the result together with you and leave care instructions for the stone surface.
Questions and answers
How quickly are stone window sills ready?
Delivery and installation in Finland — 14 working days from drawing approval. The schedule starts from the measuring day, because the sills are machined to each window’s own dimensions. If a renovation is in progress, we schedule the measuring for the stage when the frames and walls are in place. One contact person tells you the schedule and handles communication. This way the delivery fits the rhythm of the renovation.
Does a stone window sill withstand radiator heat?
Yes. Stone does not warp or crack in the heat from a radiator, unlike wood or a painted board. Granite and ceramic withstand heat and the sun’s UV light particularly well, so they are a safe choice for a south-facing window. Quartz works well, but hot items should not be placed directly on the surface.
Which thickness to choose, 20 or 30 mm?
For a narrow sill 20 mm is usually enough; it looks light and is easier to install. 30 mm gives a more solid look and suits a deep window opening or an old house with thick walls. Ceramic is also available as a thin 12 mm sill. We show you the samples and suggest what suits your window.
Can window sills be replaced without a major renovation?
Yes. We usually replace the sills in one visit: the old sill is removed, the base is levelled and the new stone sill is installed. The joints to the wall and frame are sealed, so little paint repair is needed. At measuring we tell you what the work means for your windows and whether a painter’s finishing is needed. We take the old sills away if needed.
Request a quote for stone window sills
Send us the number of windows and their dimensions, and we will suggest the material and thickness. You get a fixed quote after measuring.
