How to Maintain Your Deck in Perth’s Climate

Why Maintenance Matters in Perth

Perth’s Mediterranean climate is tough on outdoor structures:

• Hot, dry summers: UV exposure can fade and crack boards.
• Mild, wet winters: Moisture can cause mould, rot, or swelling if decks aren’t protected.
• Coastal suburbs: Salt air accelerates corrosion of fixings and surface damage.

Regular maintenance ensures your deck survives these extremes.

Timber Decking Maintenance

Oiling and Sealing

• Apply a penetrating oil or decking stain every 12 to 18 months.
• Choose UV-resistant oils to reduce greying and splitting.
• Always clean and dry boards before sealing to avoid trapping moisture.

Cleaning Routine

• Sweep weekly to remove leaves and debris.
• Wash with mild detergent every 3 to 6 months.
• Inspect for loose nails, screws, or damaged boards.

Seasonal Tips

• Summer: Shade exposed decks where possible, oil before peak UV months.
• Winter: Keep decks clear of puddles; ensure good airflow under the deck to reduce mould.

Composite Decking Maintenance

Simple Cleaning

• Hose down every few weeks to remove dust and dirt.
• For stubborn stains, use warm soapy water and a soft brush.
• Avoid pressure washers above 1500 psi to prevent damage.

Seasonal Tips

• Summer: Lighter-coloured boards stay cooler underfoot; clean more often during high dust periods.
• Winter: Rinse after heavy rain to prevent build-up of debris in grooves.

Advantages Over Timber

• No oiling, sanding, or resealing.
• Resistant to termites, mould, and rot.
• Long warranties (20 to 30 years) for peace of mind.

Extra Maintenance Considerations

• Fixings: Check stainless steel screws and fasteners annually, especially in coastal suburbs.
• Drainage: Ensure water runs off correctly, standing water shortens deck life.
• Furniture: Use protective pads under heavy items to prevent scratching.
• Inspections: Professional check every 3 to 5 years, especially for elevated decks.

Seasonal Maintenance Checklist

Conclusion

Maintaining your deck in Perth doesn’t have to be complicated.

• For timber decks, commit to regular oiling and seasonal care.
• For composite decks, a quick clean keeps them looking fresh.

With the right routine, your deck will withstand Perth’s hot summers, wet winters, and coastal conditions, staying safe, beautiful, and ready for outdoor living all year round.

Mike Tuhaka

Mike Tuhaka runs Perth Landscape Guys. He and his team design and build outdoor spaces right across Perth, from Currambine down to Mandurah, including paving, decking, retaining walls, artificial grass, lawn and reticulation. They are preferred installers for Freo Stone, Eco Stone and Remastone, and have worked on commercial projects for Murdoch University and Parsons Group. What customers mention most is Mike’s honest advice and the regular updates from the first plan to the final clean up.