Crikey Mikey Number 1 Outdoor Concentrate Mould, Lichen and Algae Remover 5L Kit

Crikey Mikey Number 1 takes a gentler chemical approach to mould, lichen, and algae removal than the Extra Strong range, using a non-caustic, non-acidic, bleach-free formula that won't damage surfaces the way harsher cleaners can. It's biodegradable and suitable for a wider range of materials, including artificial grass and tarmac, surfaces that the stronger Crikey Mikey formulations explicitly can't be used on. The 5-litre concentrate dilutes at 1 part product to 5 parts water, making 30 litres of usable solution, and covers paths, patios, driveways, gravel beds, block paving, walls, decking, and garden fences.

Application is simple: mix to ratio, load into a standard garden pressure sprayer, and apply, no pressure washing or scrubbing required. After treatment, it leaves a residual barrier that resists algae and mould regrowth on brickwork, block paving, stonework, and decorative ceramic, reducing how often reapplication is needed. The concentrate has an unlimited shelf life even once mixed with water, so there's no pressure to use it all in one go. This kit includes the 5L concentrate, a 3-litre spray applicator, gloves, and safety glasses.

Gentle, non-caustic formula - Free from bleach and aggressive chemicals, making it safe for a wider range of surfaces without damage or discolouration.
Makes 30 litres from 5L concentrate - Diluted at 5:1, one container covers a substantial area, extending value well beyond the supplied volume.
No scrubbing or pressure washing - Simply spray and let it work, removing the labour-intensive effort required by traditional cleaning methods.
Residual recontamination barrier - Leaves surfaces resistant to regrowth, reducing how often treatment needs repeating compared to one-off cleaners.
Unlimited shelf life - Remains effective indefinitely even after mixing with water, so there's no rush to use the full batch at once.