How to Clean Decking in Bristol in 2025
Remove Algae, Restore Safety & Save Your Wooden Deck!
Bristol’s mix of coastal humidity and frequent rain creates the perfect storm for slippery, algae-covered decking. If you’re searching for how to clean decking in Bristol, you’re likely battling green slime, moss, or mould. Left untreated, algae turns decks into safety hazards and accelerates wood rot. This guide covers DIY solutions (including top products from Screwfix, Toolstation, and Amazon), professional methods, pressure-washing tips, and a Bristol-specific cleaning schedule to keep your deck safe and looking great.
Why Cleaning Decking in Bristol is Essential
We all know how damp Bristol’s climate is, and this encourages rapid algae growth, especially in shaded areas. Slippery surfaces aren’t just dangerous—algae traps moisture, warping wood and attracting pests. Regular cleaning:
Prevents slips and falls.
Extends your deck’s lifespan.
Maintains curb appeal.
Best DIY Deck Cleaning Chemicals for Bristol Homes
For algae removal on decking in Bristol, these products are affordable and effective:
Screwfix: Ronseal 5Ltr Clear Decking Cleaner (£12.79)
Why Bristol homeowners love it: Concentrated formula cuts through algae and mildew. Spray, Agitate (with stiff brush), Rinse. Covers 25 metres squared.
Best for: Quick, budget-friendly cleaning.
Toolstation: Barrettine Driveway, Decking and Patio Cleaner (£15.28)
Key benefit: Removes algae while restoring wood’s natural colour. Brush onto damp decking and rinse after 10 minutes.
Best for: Smaller decks or spot treatments. Covers 20 metres squared.
Amazon: Furniture Clinic Decking Cleaner 5L (£19.95)
Why it works: A “biocide” solution that kills algae. Apply to damp deck with watering can, agitate with stiff brush, rinse.
Best for: Reviving decking wood back to original colour.
Professional Deck Cleaning in Bristol: What to Expect
Local pros use industrial methods to tackle thick algae and protect your deck long-term:
Soft washing: Low-pressure systems use sodium hypochlorite or oxygen bleach, killing algae without damaging surfaces. When the algae is thick, this is the best solution.
Eco-friendly treatments: Many Bristol companies use biodegradable cleaners to protect nearby plants.
Sealing: Pros offer options to apply water-repellent sealants post-cleaning to slow future algae growth.
Why hire a pro? They handle hazardous chemicals safely, save you time, and often spot hidden rot or structural issues.
Pressure Washing Decking in Bristol: Is It Safe?
Pros:
Removes surface algae quickly.
Ideal for large decks.
Cons:
High pressure can splinter wood (common with older decks).
Risks driving algae spores deeper into cracks.
Bristol-specific tip: Use a max 1,500 PSI pressure washer with a fan (>40 degree) nozzle. Always pre-treat with a chemical cleaner (like Ronseal’s Clean Decking Cleaner) to loosen algae first.
How Often Should You Clean Decking in Bristol?
Twice yearly: Clean in spring (to clear winter debris) and autumn (pre-winter prep).
High-risk decks: Clean quarterly if your deck is shaded, near trees, or heavily used.
Emergency clean: If surfaces feel slimy, act immediately to prevent accidents - you know what I am talking about!
FAQs: Cleaning Decking in Bristol
Q: Can I use vinegar to clean algae off my deck?
A: White vinegar works for mild algae, but Bristol’s persistent dampness often requires stronger treatments like oxygen bleach.
Q: Does jet washing damage decking?
A: Yes, if done incorrectly. Stick to low pressure and avoid directing water at gaps between boards.
Q: What’s the best month to clean decking in Bristol?
A: April or May (post-spring rains) and September (before autumn storms).
Final Tips for Bristol Deck Owners
Sweep weekly to remove leaves and dirt that trap moisture.
Trim overhanging branches to reduce shade and improve drying.
Apply sealant yearly to repel water and algae.
Act Now to Protect Your Deck!
Whether you tackle algae with Screwfix’s budget solution or hire a Bristol pro, regular maintenance is key to enjoying a safe, slip-free outdoor space. Don’t let Bristol’s rain ruin your decking, or your enjoyment of it!
Looking for professional deck cleaning in Bristol? Here at Bishopston Exterior Cleaning, we provide deck cleaning services across the city - get in touch with us on 07517 112399 🌧️🪓✨
