Top Strategies for Maintaining Your Composite Decking
Discover effective maintenance tips for composite decking to prolong its lifespan and keep it looking great. Learn how to clean, remove stains, tackle mold, and protect your deck from winter damage with simple, practical methods. Regular upkeep ensures durability, aesthetic appeal, and cost-efficiency for your outdoor space.

Top Strategies for Maintaining Your Composite Decking
Composite decking is praised for its strength, resilience, and aesthetic appeal. As a modern alternative to traditional wood, it’s crafted from a blend of wood fibers and recycled plastics. While it’s designed for low maintenance, some routine care is necessary to preserve its appearance and longevity. Ignoring this can turn minor issues into significant problems.
Here are essential maintenance tips to keep your deck looking its best:
Clear away dirt and debris
For popular brands like Trex, annual cleaning with a composite deck cleaner or mild soap, warm water, and a brush is usually sufficient. Rinsing with a hose and scrubbing gently helps maintain its shine.
The most effective cleaning method involves spraying the surface with a garden hose, then scrubbing with warm soapy water.
Employ pressure washers
Pressure washers are helpful for deep cleaning Trex decks. Keep the nozzle at 1300 PSI and maintain an 8-10 inch distance to prevent damage.
Use a broom for debris
Before tackling tannins, sweep the deck thoroughly to remove leaves and dirt. Applying a deck brightener containing oxalic acid as per instructions will assist in tannin removal.
Clear snow and ice
Regular removal of snow and ice prevents surface damage. Use a plastic shovel to avoid scratches, and apply calcium chloride to melt ice safely.
Clean spills immediately
Food or oil stains left for too long may be stubborn. Wipe with soapy water and a brush promptly to prevent staining.
Eliminate mold and algae
Prolonged dirt or pollen can foster mold growth. Clean affected areas with a brush and soapy water, or apply specialized mold cleaners available commercially.
Routine maintenance after installation and yearly care will ensure your composite deck remains durable and attractive. Keeping your deck clean helps it withstand the elements and retain its beauty for years.