Decking Cleaners

Keep your decking looking good and safe underfoot with our range of decking cleaners. Whether you’re dealing with slippery algae, mildew or a build-up of dirt, these cleaners work hard on timber and composite decking boards. Choose from formulas suited to wooden decking, high-traffic composite decks or for general outdoor use. Each option provides reliable, fuss-free cleaning - ideal for freshening up decking before oiling, staining or just carrying out routine maintenance. Suitable for both trade and DIY projects, these decking cleaners come ready to use, so you can get stuck in with minimal prep. Don’t forget your stiff brush or garden sprayer for best results.

Q: What types of decking cleaner do you stock?

A: We stock decking cleaners for both timber and composite boards, including:

• Wood decking cleaners – to clean and refresh softwood or hardwood

• Composite decking cleaners – non-abrasive formulas that won’t damage the surface

• Algae and moss removers – ideal for tackling green build-up

• Wood revivers – to restore greyed or weathered decking before oiling or staining

Choose between ready-to-use sprays or concentrated formulas for larger areas.

Q: Which decking cleaner should I use for composite decking?

A: For composite decking, use a dedicated composite decking cleaner or a general garden cleaner. These are non-abrasive and won’t damage composite boards. 

Q: Is there a difference between wood decking cleaner and composite deck cleaner?

A: Yes, wood decking cleaner is made to soak into timber and lift out dirt, algae, and mildew. Composite deck cleaners are more surface-safe and protect the finish of man-made boards; most general garden cleaners are safe to use on composite decking. Always check the label to match the cleaner to your deck type.

Q: Do you stock Cuprinol decking cleaner?

A: Yes, we stock Cuprinol Garden Decking Cleaner, as well as similar decking cleaners from other trusted brands. It’s great for cleaning algae, dirt and grease before staining or oiling. If you're after a specific product, check our listings or ask in store.

Q: Can I use a patio cleaner on my decking?

A: No, patio cleaners are often too strong for decking and may damage or discolour wood and composite boards. Use a decking-specific cleaner to safely clean the surface without causing harm.

Q: How do I clean garden decking?

A: Follow these steps:

1. Sweep to remove leaves and debris

2. Dilute your decking cleaner if needed

3. Apply with a stiff brush, mop, or sprayer

4. Leave it to soak in, then scrub again if needed

5. Rinse thoroughly with clean water

6. For stubborn algae, repeat or use a dedicated algae remover too

Q: Will decking algae remover get rid of green growth?

A: Yes, a dedicated decking algae remover, like Azpects EasyCare, is designed to break down green algae, moss, and slippery deposits. Apply it directly, brush it in, leave it to work, and rinse. Use it regularly to keep your decking safer underfoot.

Q: What’s the easiest way to rejuvenate old decking?

A: For timber decking:

• Use a wood reviver like the Osmo Wood Reviver, or a strong cleaner to deep clean the decking

• Sand rough patches if needed

• Apply decking oil or stain to restore colour and protection

For composite decking, just use a specialist cleaner – there’s no need to sand or treat the surface.

Q: Do you deliver decking cleaners across the UK?

A: Yes, we offer UK-wide delivery on our full decking cleaner range. You can order online for direct delivery or head into your local JT Atkinson branch for product advice and same-day collection options.