As warmer weather approaches, your outdoor decking deserves some attention to ensure it’s ready for the months ahead. After a long winter, dirt, moisture, and general wear can leave decking looking tired. By following a few key steps, you can restore its appearance, extend its lifespan, and create an inviting outdoor space to enjoy all season long.
Clear away winter debris
Remove leaves, dirt, and grime to prevent moisture damage
The first step in preparing your decking for spring is to clear away any debris that’s built up over winter. Leaves, twigs, and dirt can accumulate between the boards, encouraging moisture retention and moss growth. Start by sweeping the entire surface with a stiff brush, paying extra attention to corners and gaps where debris can collect.
For stubborn grime or areas affected by mould, a good deck cleaner can make all the difference. Alternatively, a simple solution of half water, half bleach can also be effective. Apply your chosen cleaner with a stiff brush, leave it to soak for 10-15 minutes, and rinse thoroughly with a hose.
If you’re using a pressure washer, test a small area first to avoid splintering or damaging the timber. While pressure washers can be useful, excessive force can sometimes cause more harm than good.
Inspect your decking for damage
Check for cracks, warping, and loose fixings to ensure stability
Winter weather can take its toll on decking, so a thorough inspection is important before you start enjoying your outdoor space again.
Look carefully for signs of cracked, warped, or splintered boards. Any damaged planks should be repaired or replaced to prevent further deterioration. Don’t forget to check the structure underneath your decking too – decking joists and support posts are just as important for overall stability.
Take time to inspect railings, steps, and balustade components for any signs of movement or loose fixings. Protruding nails or screws should be hammered back into place or replaced with new fixings if needed.
If your decking includes anti-slip boards, ensure the textured surface is still effective and hasn’t become worn down. These boards provide extra grip for added safety, particularly in shaded areas or during wet weather. Fountain Timber's range of Scandinavian Anti-Slip Decking boards are an excellent choice when both durability and safety are a key concern.
Clean your decking thoroughly
Deep clean to restore colour and prevent mildew
Once you’ve checked for damage and swept away debris, a deep clean will restore your deck’s natural colour and texture.
A dedicated decking cleaner will help break down ingrained dirt, algae, and stains. Apply the cleaner with a stiff brush, scrubbing the surface thoroughly to lift grime from the wood grain. Rinse well with a garden hose to ensure no residue is left behind.
For timber decking, this cleaning step is essential to prevent the build-up of moisture and mildew, which can accelerate rot. Composite options like Millboard decking are naturally resistant to these issues, requiring little more than soap and water to keep them looking their best.
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Apply a protective finish
Protect your deck from moisture, UV damage, and wear
To keep your decking in prime condition throughout spring and summer, applying a protective finish is highly recommended.
Once your deck is clean and fully dry — ideally allowing 48 hours after washing — you can apply a suitable treatment. A semi-transparent stain can enhance the natural grain of timber while providing UV protection. Alternatively, a clear water repellent will protect the wood while maintaining its natural look.
Even if you’re unsure about adding colour to your deck, applying a water-repellent treatment is vital. It creates a protective barrier against rain, reducing the risk of swelling, shrinking, and cracking.
For a low-maintenance solution, Millboard composite decking offers a built-in protective surface that resists stains, moisture, and fading without the need for annual treatments.
How can we help?
Fountain Timber stocks everything you need to prepare, maintain, or enhance your decking. From traditional Scandinavian timber decking or hard-wearing, eco-friendly Bamboo decking to durable, low-maintenance Millboard composite decking, we offer high-quality materials to suit every space and style.
If you’d like guidance on caring for your decking or advice on choosing the right products, our experienced team is here to help.
Get in touch today to start your spring decking refresh.
The information and advice in this article is provided in good faith and is designed to give general information and guidance. Any reliance you place on such information is therefore strictly at your own risk. If in doubt, we strongly recommend you seek professional assistance.
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