Decking Cleaning and Pressure Washing – Revive Your Garden Deck

Is your decking looking green, slippery, or weathered?

Wooden decking adds warmth and character to a garden, but over time it can become covered in algae, moss, and grime, turning it into a slip hazard and making your garden look tired.

Just last week, I cleaned a garden deck in Cheltenham that hadn’t been washed in years. The timber had turned almost black with algae, and the owners were worried it might need replacing. After a professional clean, the natural wood colour came back beautifully, saving them the cost and hassle of installing new decking.

Why does decking need cleaning?

Decking is exposed to the elements throughout the year. Rain, frost, and fallen leaves create ideal conditions for moss and algae to grow, particularly in shaded areas. This not only looks unsightly but can also make your decking dangerously slippery.

Regular pressure washing keeps your decking looking its best and makes it safer for you, your family, and your guests to walk on.

Can all decking be pressure washed safely?

Yes – when done professionally and carefully. Using too high a pressure or the wrong nozzle can damage wood fibres, but with the correct settings and technique, pressure washing removes grime and algae without harming the timber.

For composite decking, a gentler approach is used to avoid damaging the surface while still achieving a thorough clean.

If you’re unsure about your decking type, ask – I’ll always advise on the safest cleaning method.

Benefits of professional decking cleaning

✅ Restores natural wood colour. Brings back the original look of your decking, making it a beautiful feature again.

✅ Removes moss and algae. Eliminates slippery build-up, making it safer for everyone.

✅ Prolongs life of decking. Prevents rot and decay caused by damp and moss.

✅ Prepares for treatment. Ideal before oiling or staining to protect and enhance your deck.

When is the best time to clean decking?

Decking can be cleaned year-round, but spring and early summer are ideal to prepare for garden gatherings and outdoor dining. An autumn clean helps remove algae before winter, reducing the risk of slips during wetter months.

Professional vs DIY cleaning

While DIY pressure washers can remove some surface dirt, professional cleaning achieves a deeper, more even finish without damaging the wood. I use commercial-grade equipment with adjustable settings to suit each decking type, ensuring the best results safely.

For more on why professional cleaning makes a difference, read our Professional Pressure Washing – What You Need to Know article.

Revive your garden deck today

A clean, safe, and beautiful deck transforms your garden, making it ready for summer gatherings, quiet morning coffees, or simply enjoying your outdoor space without worry.

Message me today to book your decking clean and pressure wash.

Whether your decking is wooden or composite, I’ll restore its natural beauty and safety with friendly, professional service you can trust.