Window sills and accessories – reliable façade protection
Aluminium window sills are an essential component of modern façades. They reliably protect the building from moisture, enhance the architectural appearance and ensure clean, durable detailing. As a specialist aluminium wholesaler, W. Hartmann & Co. offers a comprehensive range of window sills in numerous projections from 50 to 400 mm, together with essential accessories such as end caps, joint connectors, fixing materials and anti-drumming solutions. Whether for new construction or renovation, residential or commercial buildings: Our window sills combine precise manufacturing, an attractive appearance and fast availability. They are also 100% recyclable – and can be recycled again and again.
Stock range
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Window sills and accessories from W. Hartmann & Co.
Complete system from a single source
Window sills, end caps, connectors and accessories perfectly matched to one another.
Wide selection available from stock
20 projections from 50–400 mm and various surface finishes available directly from stock.
Pre-finished options available
Powder-coated, anodised or mill finish – ready to use without additional processing.
Safe & durable solution
Corrosion-resistant, weather-resistant and featuring well-designed details such as drip edges and sealing systems.
Overview
The W. Hartmann & Co. range includes extruded aluminium window sills in 20 projections from 50 to 400 mm – and, as a special feature, also available powder-coated or anodised. These window sills are available:
- Powder-coated RAL 7016 Anthracite Grey
- Powder-coated RAL 9016 Traffic White
- Anodised E6/EV1
- Mill finish
The finishes offer good scratch resistance and are easy to maintain. This makes the window sills both functional and visually well matched to modern aluminium façades, window and door systems. Manufactured from high-quality aluminium, W. Hartmann & Co. window sills offer:
- Efficient water drainage through integrated drip edges
- Corrosion resistance and long service life
- A consistent appearance with other aluminium building components
- Screw flange: 25 mm, with slotted holes (4.2 × 7.0 mm) every 300 mm
- Standard lengths: 6000 mm
- Slope: 5°
- Drip edge: 40 mm
Projections of 400 mm and more are also available as bent sheet versions on request.
Accessories
- Allow thermal expansion and protect the masonry
- Two-part design consisting of an end cap and sealing material
- Watertight against driving rain up to 1950 Pa
- For projections from 50 to 400 mm
- Mill finish, RAL 7016, RAL 9016 or anodised E6/EV1
End caps / side profiles
for rendered masonry with a 17 mm render edge
End caps / side profiles
for brickwork or timber façades
Sliding end cap with rubber seal
for rendered masonry
Sliding end cap with EPDM rubber seal
for brickwork
- Mill finish, RAL 7016, RAL 9016 or anodised E6/EV1
Corner joint connector - internal corner
For 90° and 135° corner connections
Other angles and drip edge lengths upon request
Corner joint connector - external corner
For 90° and 135° corner connections
Other angles and drip edge lengths upon request
Straight joint connector
With an extra wide 35 mm cover surface
Straight sliding connector
With additional sealing to optimally accomodate longitudial thermal expansion
- Two-part component consisting of a base body and an insert angle bracket, designed to compensate variations in masonry dimensions
- Prevents the window sill from becoming detached under high wind loads
- Drains accumulated water more quickly and keeps it away from the masonry
- Stainless steel screws with plastic sealing washers
- Plastic screw cover caps
- Connection seals made of weather-resistant EPDM
- Coated aluminium heavy-duty foil
- Self-adhesive
- Non-combustible (A2)
- Supplied on rolls in widths of 50, 75, 100, 150 and 250 mm