How to clean decking

Wooden decking needs frequent care and love to keep it looking its best. The decking surface is often exposed to all kinds of weather all year round, meaning maintenance is key to its long life. For people wanting to keep their decking in top shape, a deep clean is needed at least once a year.

How to clean your garden decking

Step 1: Clean and prepare the area

Start off by clearing everything from the surface of your deck. Remove anything that might get in your way or prove hazardous – anything from large patio furniture to potted plants.

Next, take a broom and give the whole area a good and thorough sweep.

Brush away all remaining dust and leaves, and pay attention to nooks and gaps where dirt and debris can collect.


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Step 2: Hose or pressure wash

For this step, use a pressure washer or a garden hose to loosen and rinse away any dirt or grime in the area.

Aim the sprayer directly at heavily soiled areas to remove as much collected dirt as possible. If you are using a pressure washer, remember to take extra care.

The washer can quickly damage the wood if used at close proximity, making it nearly impossible to treat or clean.

Choose the lowest setting and make sure there remains a distance between the pressure washer head and your wooden decking.

Once the worst areas have been tended to, remember to spray in between decking boards to remove any remaining twigs, leaves and other debris.


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Step 3: Scrub and rinse

To avoid damaging the deck, create a delicate cleaning solution made up of warm water and washing up liquid.

Alternatively, you can opt for a specialist wood deck cleaner if this is easier.

Cover and saturate the intended surface and scrub the deck with a stiff-bristled brush or sponge until the cleaning solution or deck cleaner starts to lather and bubble up.

Let the solution stand for 5-10 minutes, or according to the instructions on the deck cleaner if using.

Lastly, rinse the area with clean water and leave the wood to dry.

Step 4: Treating mould

When it comes to mould and algae, the best way to clean is with a concentrated disinfected treatment.

An expert formula will remove stubborn stains but also protects the surface from mould and algae in the future.

Spray the chosen solution onto affected areas and let it dry.

Pressure washing or scrubbing the surface before hand is not necessary in this case. 

Step 5: Reseal

Resealing the deck after cleaning is always advised to guarantee optimum freshness.

Some sealers contain waterproofing agents or mildew protecting agents, so be sure to thoroughly explore your options before buying.

Sweep the deck ti remove any dirt or dust which may have accumulated while the decking dries.

Following this, simply apply the sealant by following manufacturer instructions.

Let the solution dry fully before reshuffling furniture, plants and other accessories onto the deck.

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