The Top Cleaner is Van der Waay's top model; a high-quality cleaner suitable for all Venlo greenhouses. Moreover, the machine is environmentally friendly because it only uses water to clean the glass. The Top Cleaner is also equipped with all imaginable safety devices.

The machine is available from manual to completely computer-controlled. In the latter case, the windows automatically open and close when the greenhouse has to be washed. With a small expansion, the roof washer can also be used to apply a layer of chalk or coating.