Many homeowners asked how to maintain WPC decking.
WPC (Wood Plastic Composite) decking has become a top choice for homeowners who want the beauty of wood without the high upkeep.
It’s durable, weather-resistant, and easy to clean—but even the best composite decking needs the right care to stay in top shape for years.
Here’s how to keep your deck looking just as good as the day it was installed.
Related guide: See how WPC compares to timber in our WPC vs Wood Decking article.
Why Even “Low-Maintenance” Decking Needs Care
Composite decking is far easier to maintain than traditional wood, but “low-maintenance” doesn’t mean “no maintenance.”
A little effort goes a long way in preventing stains, fading, and surface damage.
The three main goals of deck care are:
- Keep It Clean – Stop dirt, pollen, and mildew before they become permanent.
- Protect It From the Elements – Sun, rain, and snow can wear down any outdoor surface over time.
- Prevent Physical Damage – Minimize scratches, dents, and heavy impact marks.
Want to know how long your deck will last? Read our Composite Decking Lifespan Guide.
4 Golden Rules for WPC Decking Maintenance
Rule 1: Protect Against Furniture Damage
- Place high-density EVA pads (at least 8mm) under all furniture legs.
- Use heavy-duty rubber mats under grills or heavy planters.
- Shift furniture every few months to avoid uneven fading.
- For outdoor dining sets, opt for lightweight chairs that can be moved easily.
Rule 2: Clean Smart, Not Hard
| How Often | What to Do | Avoid |
|---|---|---|
| Daily | Sweep or use an electrostatic mop | Metal scrapers |
| Weekly | Wash with mild soap + soft brush | Harsh chemicals |
| Twice a Year | Low-pressure rinse (under 1000 psi) | Holding nozzle too close |
💡 Pro tip: After heavy pollen seasons, rinse your deck to prevent sticky build-up that attracts dirt.
Rule 3: Handle Ice & Snow Safely
- Use a plastic or polycarbonate snow shovel to avoid scratching.
- Apply calcium-magnesium ice melt instead of rock salt.
- For thick ice (over 1 inch), try a steam ice remover.
- Before winter, apply an anti-slip coating to improve safety.
Rule 4: Manage Sunlight & Water Drainage
- Make sure your deck has a gentle slope (1–2%) for water runoff.
- Apply a UV-protective sealant once a year in sunny climates.
- Avoid covering your deck with solid mats—moisture needs an escape path.
- In shady or damp areas, consider adding drainage channels or vents for better airflow.
Things That Can Damage WPC Decking
⚠️ Chemical Damage
- No bleach, no acetone-based cleaners.
- For grease spills: use cornstarch to absorb oil, then a mild cleaner.
⚠️ Heat Damage
- Put a heat shield under BBQ grills.
- Fix small burns with a repair putty + UV cure.
⚠️ Mold & Mildew
- Spray diluted tea tree oil in shaded areas once a month.
- Seal gaps with silicone to block moisture.
Extra Care Tips for Long-Term Performance
Seasonal Prep
- Apply water-repellent coating before rainy seasons.
- Use anti-static spray in dusty or windy areas.
- Rinse monthly in coastal locations to remove salt buildup.
Quick Fixes for Common Issues
| Problem | Quick Fix |
|---|---|
| Small scratches | Heat gun at 180°C to reflow surface |
| Dents | Fill with foam and heat press |
| Faded color | Use a color restorer + UV sealant |
Final Word: Care Now, Save Later
By following these 4 simple rules, you can extend your deck’s lifespan by over 40%.
Regular care means:
- Less money spent on repairs.
- A deck that looks 90% as good after 15 years as it did on day one.
Gladol’s Promise
- High-density core: 1.35 g/cm³ for better strength.
- Scratch-resistant ceramic layer, Mohs hardness 6.
- Eco-friendly, ISO-certified materials.
Get a free deck care plan today and enjoy 25 years of warranty.
Bottom line: A well-maintained composite deck is a long-term investment in both beauty and value.
Want design ideas? Browse our WPC Decking Ideas Gallery.
