Algae & green mould killer and preventer

HG algae and mould remover is easy to use. You can remove green mould and algae from your patio or other concrete in just 36 hours. When you apply this algae killer, it penetrates deep into the surface of the concrete. 

HG algae and mould remover not only works as a mould and algae remover. As well as removing algae and mould, it also protects your patio against algae building up again for months. Another key benefit of HG algae and mould remover is that it isn’t harmful to your grass or plants, so you can keep your patio and garden looking great.

How to use our patio algae remover

HG algae and mould remover is simple to use. Read below to find out how you can remove algae and green mould from your patio, walls, roof, and other outdoor stone and concrete.

Removing algae and mould build-up:

1. For the best effect, remove as much moss as you can from the patio or concrete before you add the algae cleaner
2. Then, dilute the HG algae and mould remover in a watering can or plant sprayer with water, in a ratio of 1:20
3. Apply HG algae and mould remover in dry weather, when there is no rain forecasted for the next two days

Use biocides safely. Always read the label and product information before use.