At Jay’s Synthetic Grass, we’ve spent years transforming outdoor spaces across Perth — from family patios and pool areas to large-scale commercial decks. And while composite decking is known for being low-maintenance, the truth is: low maintenance doesn’t mean no maintenance.
In this detailed guide, we’ll walk you through the exact maintenance practices we recommend to Perth homeowners, schools, and builders to help their decks stay looking sharp and structurally sound for years.
Whether you’ve already got composite decking or you’re planning to install it soon, here’s what you need to know to protect your investment — straight from the professionals who work with this material every day.
Why Composite Decking Makes Sense in Perth
Perth’s weather is no joke. Long, dry summers. Harsh UV exposure. Sudden rain and wind. Over time, these conditions take a toll on traditional timber decks — warping, cracking, fading, and splintering.
That’s exactly why composite decking has become the preferred choice for so many of our clients:
- UV and fade resistance
- Rot, mould, and termite protection
- No sanding, staining, or sealing
- Long lifespan with minimal effort
That said, even the best decking needs smart, simple care to stay in peak condition.
Our Practical Guide to Composite Decking Maintenance
We’ve broken down our recommendations into routine, seasonal, and preventative care so you can maintain your composite decking with confidence — without overcomplicating things.
Routine Maintenance: Keep It Simple
You don’t need to fuss over your deck weekly, but basic upkeep goes a long way.
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Sweep Frequently
Dust, leaves, and grit can settle into the boards and promote mould or scratching. A quick sweep once a week keeps things tidy and avoids surface build-up.
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Wash Monthly (Especially in Summer)
Use warm water, a soft mop or brush, and mild detergent. No bleach. No high-pressure washers. A garden hose and elbow grease are all you need for general cleaning.
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Spot Clean Spills Quickly
Composite decking resists stains, but prompt action helps prevent anything from setting in — especially grease, oil, or wine. For tougher spots, use a composite-safe cleaner.
Seasonal Maintenance: Perth-Specific Recommendations
Twice a year, we suggest doing a deep clean and inspection — once in spring and again before winter.
Spring Checklist:
- Move planters and furniture; clean underneath
- Hose down thoroughly and check for drainage
- Clear out any debris between deck boards
- Inspect for surface mildew (use vinegar + warm water)
Winter Checklist:
- Remove leaf build-up and damp patches
- Check edges for pooling water or moss growth
- Trim surrounding plants that may cause moisture buildup
- Rinse with warm soapy water after storms or high winds
These seasonal touch-points help your deck bounce back after heavy use or extreme weather — both common in Perth.
What to Avoid With Composite Decking
At Jay’s, we often get called to inspect decks that are suffering from easily preventable issues. Here are the common mistakes you should avoid:
- Dragging heavy furniture across the surface
- Leaving metal items (like BBQ tools or pots) that can rust
- Letting grease accumulate from outdoor cooking
- Using bleach, acid-based cleaners, or acetone
- Overusing high-pressure washers close to the surface
When in doubt, treat your deck with the same care you would a polished timber floor.
When to Call the Pros
While composite decking is extremely durable, some issues may still need a professional assessment — especially if:
- You notice raised or uneven boards
- Fasteners have started to lift
- There’s extensive surface fading or discolouration
- Drainage underneath has been compromised over time
Our team at Jay’s can help with inspections, maintenance guidance, or even upgrading older decks to more weather-resistant composite boards.
Local Considerations for Decking in Perth
Being a Perth-based company, we’ve come to know what works best for our clients based on location and lifestyle:
- Coastal properties: Rinse occasionally to remove salt build-up
- Homes with pets: Clean messes promptly; rinse with mild soapy water
- High-sun areas: Go for UV-stabilised composite boards (like the ones we supply)
- Leafy surrounds: Trim overhanging trees seasonally to reduce leaf litter and trapped moisture
Your deck is exposed to more than just weather — it’s affected by how you use the space. A little awareness goes a long way.
FAQs – Composite Decking Maintenance Perth
Q1. Do I need to oil or seal my composite deck?
No. Composite boards are designed to resist weathering and UV damage without oils or sealants. That’s one of their biggest advantages over timber.
Q2. Can I use a pressure washer?
Yes, but carefully. Use a fan-tip nozzle at low pressure (below 1500 psi) and keep a safe distance. Direct, close-up blasts can damage the surface.
Q3. What happens if I get mould or algae on my deck?
Clean it with a solution of vinegar and warm water or use a decking-specific cleaner. Avoid harsh chemicals or bleach.
Q4. How long will composite decking last in Perth?
With proper care, quality composite decking can last 20–30 years in Perth’s climate.
Q5. Can I place heavy furniture or BBQs on it?
Absolutely — just use protective pads to avoid long-term pressure marks or rust rings from metal objects.
Need Help With Composite Decking?
At Jay’s Synthetic Grass, we offer more than supply and install — we provide long-term support and honest advice to help you maintain your outdoor spaces with ease.
Whether you’ve installed with us or not, we’re happy to assist with:
- Annual check-ups
- Replacement boards
- Drainage and subframe advice
- Accessory upgrades and finishes
Perth-based. Professionally installed.Backed by experience.
Final Word
If you’re in Perth and want a deck that keeps its looks without the hassle, composite decking is your best bet — and a little care goes a long way.
For expert installation, quality products, and real support when you need it, get in touch with Jay’s Synthetic Grass today. We’re proud to help Perth homes and businesses enjoy outdoor living, minus the maintenance headaches.