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⚡ Rock Bottom Prices. Maximum Choice.⚡
⚡ Rock Bottom Prices. Maximum Choice.⚡

Hg Algae & Mould Remover

by HG
SKU 21966
Original price £5.99 - Original price £5.99
Original price
£5.99
£5.99 - £5.99
Current price £5.99
Availability:
in stock, ready to be shipped

Est Delivery 3 - 7 Working Day

Shipping information


We work hard to get your order out quickly and securely.

  • Fast Dispatch – Orders are processed promptly once placed.
  • Trusted Couriers – We use reliable delivery partners.
  • Clear Costs – Shipping is calculated at checkout, based on size and weight.
  • Peace of Mind – We’ll keep you updated every step of the way.
Returns & warranty
  • 28 Days to Return – If it’s not right, just bring it back in its original condition.
  • Quick Refunds – Once we’ve checked your return, we’ll refund you promptly.
  • Clear & Fair – Some items (like cut-to-size or opened packaging) can’t be returned, but we’ll always let you know upfront.

Hg Algae & Mould Remover

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.

🔨 Trade Prices for Everyone

Why pay more? We keep our prices rock-bottom so whether you’re a trade professional or DIYer, you always get the best deal.

🏠 Local & Independent


We’re Northampton’s trusted family-run store, supporting local people with great products and honest service.

🚚 Easy Pickup or Local Delivery

Order online and collect in-store, or get heavy items like blocks and cement delivered straight to your site.

👍 Friendly, Helpful Service

Our staff know their stuff — whether it’s building materials, DIY or garden, we’re here to help you get the job done.

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