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Woodcare
woodcare
Wood Cleaner Concentrate for Decking, Fences and Garden Timber
Green slime can turn a lovely deck into a slippery hazard. Dirt, algae and fungi build up fast on outdoor timber. A good wood cleaner concentrate helps restore a tired surface. Our woodcare range starts with TIMCO Exterior Wood Cleaner Concentrate. It suits timber, composite and plastic decking. It also works on fencing, pergolas, trellis and garden furniture. Use it as a composite wood deck cleaner or a timber cleaner. Trade and DIY users can order it from JALFT.
Why Outdoor Timber Gets Dirty So Fast
The UK has damp air and frequent rain. Shaded gardens stay wet for longer. Those are ideal conditions for algae and fungi. They grow on decking, fences and garden furniture.
Regular cleaning keeps outdoor timber looking tidy. It also helps you spot damage early. Loose boards and soft patches are easier to see on clean wood.
A concentrate is handy for this job. You mix only what you need. One small bottle is easy to store and carry.
Quick tip: Test the mix on a small hidden spot first. Let it dry. Check the result before you clean the whole area.
TIMCO Exterior Wood Cleaner Concentrate
This is a fast acting, water based decking cleaner. It comes in a 500ml bottle. The super concentrated formula removes dirt, grime, fungi and algae. It is made for light cleaning and thorough restoration.
Here are the main surfaces listed for this cleaner.
Timber Decking
It is made for use on all timber decking. Clean the boards before you stain or seal them.
Composite and Plastic Decking
Need a composite wood deck cleaner? This cleaner is made for composite decking too. It also suits plastic decking.
Fencing
Fences in damp or shaded spots gather algae and dirt. Use the mix to freshen them up.
Pergolas and Trellis
Pergolas and trellis hold dirt in their small gaps. A brush helps you reach tight spots.
Garden Furniture
Garden furniture faces rain and dirt all year. Clean one piece at a time.
Other External Timber
Use it on other external timber around your garden. Check the label to confirm the surface suits.
| Feature | Detail |
|---|---|
| Brand | TIMCO |
| Product | Exterior Wood Cleaner Concentrate |
| Size | 500ml bottle |
| Formula | Fast acting, water based |
| Removes | Dirt, grime, fungi and algae |
| Suited to | Timber, composite and plastic decking |
| Also for | Fencing, pergolas, trellis, garden furniture and external timber |
| Environment | Exterior |
| Product code | 257004 |
Signs Your Deck or Fence Needs a Clean
Look out for these common signs. They show up first in damp, shaded spots.
Green Film
A green layer often means algae. It can feel slippery underfoot.
Dark Patches
Damp spots can grow fungi over time. Check shaded corners and board edges.
Dull Surface
Dirt and grime can hide the natural colour of the wood.
Busy Areas
Foot traffic spreads dirt across walkways. Look near doors, steps and seating areas.
After Winter
Wet months leave dirt and algae behind. Spring is a good time for a clean.
Before Staining
Clean wood makes a better base for stain or sealer.
Timber and Composite Decking: What to Know
Timber and composite boards are not the same. Use this table as a quick guide.
| Surface | Cleaning Method | Handy Tip |
|---|---|---|
| Timber decking | Brush along the grain | Avoid wire brushes on soft boards |
| Composite decking | Use a soft or medium brush | Brush along the board pattern |
| Plastic decking | Use a soft brush | Rinse well after cleaning |
| Fencing | Work from top to bottom | Drips will not mark cleaned areas |
| Garden furniture | Clean one piece at a time | Move it to a spot that can get wet |
How to Mix and Use the Concentrate
Mix the cleaner with water to suit the dirt level. Use these amounts for 10 litres of water.
| Dirt Level | Cleaner Needed | Best For |
|---|---|---|
| Light | 1/4 bottle (125ml) | Regular upkeep and light grime |
| Heavy | 1/2 bottle (250ml) | Thick algae and built-up dirt |
Always read the bottle label before you mix.
Step 1: Prepare the Area
Sweep away leaves and loose dirt. Move pots and furniture off the surface.
Step 2: Mix the Cleaner
Add the cleaner to water in a clean bucket. Use the amount that suits the dirt level.
Step 3: Apply in Sections
Work on one small section at a time. This keeps the mix from drying too soon.
Step 4: Scrub Gently
Use a suitable brush. Follow the grain on timber boards.
Step 5: Rinse Well
Leave the mix for the time on the label. Then rinse with clean water.
Step 6: Dry and Check
Let the surface dry fully. Look for any missed patches.
What to Do After Cleaning
A clean deck is easy to inspect. Look for loose boards, raised screw heads and soft spots. Fix small faults before they grow.
Apply any stain or sealer only when the wood is dry.
Safety and Storage Tips
Wear gloves and eye protection when you mix and apply. Keep the bottle away from children and pets. Store it upright with the cap shut tight. Never mix it with other cleaning products.
Remember: Read the product label and safety data before use. Follow the directions on the bottle.
Order Woodcare Products from JALFT
JALFT supplies trade and DIY customers across the UK. You can get next-day delivery when you order by 2pm. Trade customers can also sign up for a trade account.
Find the Right Wood Cleaner for Your Outdoor Job
Use the filters above to check stock and pack size. Read the product page for full details before you order.
Need a timber cleaner, a composite wood deck cleaner or a fence cleaner? TIMCO Exterior Wood Cleaner Concentrate is made for all of these jobs.
Frequently Asked Questions
What does wood cleaner concentrate mean?
It means the cleaner is strong and needs mixing with water. You dilute it before use, so one bottle goes a long way.
Can I use TIMCO Exterior Wood Cleaner Concentrate indoors?
No. It is made for exterior surfaces only. Do not use it on indoor floors or furniture.
How much area does one 500ml bottle treat?
One bottle treats up to 40m² when mixed as directed. Coverage depends on how dirty the surface is.
How often should I clean my decking?
Many people clean decking once or twice a year. Clean sooner if you see green slime or slippery patches.
Does a wood cleaner protect decking from weather?
No. A cleaner removes dirt, grime and algae. Stain, oil or sealer is what adds protection.
Is a composite wood deck cleaner safe on every composite board?
Composite boards vary by brand. Check the maker's care advice first. Then test a small hidden area before full use.
What is the best weather for cleaning decking?
Pick a dry, mild day. Avoid frost and strong direct sun. Strong sun can dry the mix too fast.
Related Products
Cleaning is often one step in a bigger job. For repairs after cleaning, see our decking and timber screws.
Stay safe while you work with our work gloves. For other cleaning jobs, see our cleaners.