Made-to-measure exterior sills — coated sheet steel

New windows and façades need a carefully finished lower reveal. An external sill drains water away from the wall surface and gives the window a defined lower edge. SteelProfil offers sheet metal sills matched to the building’s dimensions and colour scheme. They are a practical detail for insulation upgrades, window replacement and finishing a new home.

The right sill shape helps carry water from the window to the outside. The slope, projection and front edge all matter. The detail should also suit the window installation and wall layers. This makes the sill part of a considered reveal finish and helps protect an area regularly exposed to rain.

When insulating an existing home, take the new façade thickness into account. The old sill may no longer suit the changed construction, so order the correct size before applying the final render. This allows the side joints and installation area to be prepared properly. In a new building, the same decisions help coordinate window and façade work. With several windows, similar projections and end details create consistency and improve the overall appearance without additional decoration.

Coated sheet metal makes it possible to match the sill to window frames, gutters and roof flashings. A light finish can blend softly with the wall, while a dark one outlines the window more distinctly. A regular sill line brings order to a façade with many openings. It is therefore worth agreeing a colour for the whole building, even if the renovation will be carried out in stages.

Sills made to specified dimensions allow both length and developed sheet width to be adapted to the individual reveal. This matters in older buildings and non-standard openings. The drawing should include the required folds and side terminations. A properly prepared component helps the installer fit the detail, giving the owner a surface suited to the actual window geometry.

This type of sill is suitable for homes, garages, commercial premises and halls with appropriate windows. In each case it combines a practical role with appearance. The chosen coating and correct installation determine the final result. It can therefore finish a single new window or the entire façade of a refurbished building.

We help you choose the material and discuss made-to-order sill fabrication. Our wider sheet metal range includes first- and second-grade materials, with selected items available from stock. Frequent promotions and competitive prices help you plan the window finishes economically. We will agree the lead time and exact sill version from the dimensions and selected material.

Measure the openings with the planned insulation and installation method in mind. We can help refine the order so that the sills match the façade in size and colour. A sill is small compared with the whole wall, but visible at every window. Careful selection helps the new façade look complete from the first glance.