Patio Cleaner 5L Concentrate – Kills Algae, Mould & Black Spot for 9 Months, No Scrubbing | Multipacks Save up to 21% | Patio Blast

Patio Blast – the patio cleaner for people who'd rather not own a pressure washer

Pressure washing a patio is a strange ritual: you spend a Saturday soaked in grey water, blast the joints out from between your slabs, and the green comes back by August anyway. Patio Blast takes the opposite approach. You apply it and walk away. No scrubbing, no jet washing – it kills and controls green growth, algae, mould and lichens, removes black spot, and keeps working for up to 9 months. Wind and rain do the rinsing for you.

This 5L concentrate cleans up to 220m² and works on patios, driveways, paths, walls, roof tiles, decking, fences, garden furniture, conservatories, greenhouses, caravans, tarmac, artificial grass and memorials – and as a wash before painting or staining.

💰 Single, pair or box?

A 5L drum is heavy, and heavy parcels cost money to post – so the single carries that cost on its own. Doing the front and the back, or splitting with a neighbour? Here's the maths:

• Single 5L: £20.49
• 2 Pack: £34.49 – £17.25 per 5L (save 16%)
• Full Box of 3: £48.49 – £16.16 per 5L (save 21%) – up to 660m² of clean

How to use

• Scrape away thick moss first. Apply to a dry surface on a dry day – don't apply if rain is expected or below 5°C.
• Dilute as shown on the label (stronger for heavy growth, weaker for light) and apply evenly with a watering can, trigger, pump or battery sprayer.
• Leave to dry. Results show within about 2 weeks; heavily infested areas may need a second application.
• Keep children and pets off treated areas until dry.

🌱 Rose's Pro-Tip: Patience is the active ingredient. The green turns brown first, then weathers away over the following weeks – resist the urge to jet-wash it off and you'll keep the long-lasting protection.

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