--- title: "Decking Cleaning London | Timber & Composite Restoration" description: "Professional decking cleaning in London & Surrey. Timber and composite decking restored, oiled and protected. Remove algae, mould and weathering. 0800 654 6701." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "LocalBusiness", "@id": "https://mossmenroofcleaning.co.uk/#business", "name": "Moss Men Roof Cleaning London", "description": "Professional roof cleaning, moss removal, gutter cleaning and exterior cleaning services in London and Surrey.", "url": "https://mossmenroofcleaning.co.uk", "telephone": "0800 654 6701", "email": "mossmenlondon@gmail.com", "contactPoint": [ { "@type": "ContactPoint", "telephone": "+44-800-654-6701", "contactType": "customer service", "areaServed": "GB", "availableLanguage": "en" }, { "@type": "ContactPoint", "telephone": "+44-7551-442228", "contactType": "customer service", "areaServed": "GB", "availableLanguage": "en" } ], "image": "https://mossmenroofcleaning.co.uk/favicon.png", "address": { "@type": "PostalAddress", "streetAddress": "55 Wolsey Close", "addressLocality": "Worcester Park", "addressRegion": "Surrey", "postalCode": "KT4 7EF", "addressCountry": "GB" }, "geo": { "@type": "GeoCoordinates", "latitude": "51.3779", "longitude": "-0.2437" }, "areaServed": [ { "@type": "City", "name": "London" }, { "@type": "AdministrativeArea", "name": "Surrey" }, { "@type": "City", "name": "Worcester Park" }, { "@type": "City", "name": "Sutton" }, { "@type": "City", "name": "New Malden" }, { "@type": "City", "name": "Morden" }, { "@type": "City", "name": "Chessington" }, { "@type": "City", "name": "Coulsdon" } ], "priceRange": "££", "openingHoursSpecification": { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ], "opens": "07:00", "closes": "19:00" }, "aggregateRating": { "@type": "AggregateRating", "ratingValue": "5", "reviewCount": "50", "bestRating": "5" }, "hasOfferCatalog": { "@type": "OfferCatalog", "name": "Exterior Cleaning Services", "itemListElement": [ { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Roof Cleaning" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Gutter Cleaning" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Pressure Washing" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Driveway Cleaning" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Patio Cleaning" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Softwashing" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Decking Cleaning" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Fence Cleaning" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Solar Panel Cleaning" } } ] } }, { "@context": "https://schema.org", "@type": "Organization", "@id": "https://mossmenroofcleaning.co.uk/#organization", "name": "Moss Men Roof Cleaning London", "url": "https://mossmenroofcleaning.co.uk", "logo": "https://mossmenroofcleaning.co.uk/favicon.png", "contactPoint": { "@type": "ContactPoint", "telephone": "+44-800-654-6701", "contactType": "customer service", "areaServed": "GB", "availableLanguage": "English" }, "sameAs": [] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "https://mossmenroofcleaning.co.uk/#website", "name": "Moss Men Roof Cleaning London", "url": "https://mossmenroofcleaning.co.uk", "publisher": { "@id": "https://mossmenroofcleaning.co.uk/#organization" }, "potentialAction": { "@type": "SearchAction", "target": "https://mossmenroofcleaning.co.uk/?s={search_term_string}", "query-input": "required name=search_term_string" } }, { "@context": "https://schema.org", "@type": "Service", "name": "Decking Cleaning London", "provider": { "@type": "LocalBusiness", "name": "Moss Men Roof Cleaning London", "telephone": "08006546701" }, "areaServed": [ "London", "Surrey" ], "description": "Professional decking cleaning in London & Surrey. Timber and composite decking restored, oiled and protected. Remove algae, mould and weathering. 0800 654 6701." }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does decking cleaning cost in London?", "acceptedAnswer": { "@type": "Answer", "text": "Most residential decks cost between £150 and £400 to clean and oil, depending on size, timber type and condition. We provide exact quotes after a free assessment. The price includes cleaning, brightening and two coats of oil." } }, { "@type": "Question", "name": "How long does decking cleaning take?", "acceptedAnswer": { "@type": "Answer", "text": "Cleaning takes half a day for most residential decks. The deck then needs 24–48 hours to dry before oiling, which takes another half day. Total elapsed time is typically 2–3 days with drying time." } }, { "@type": "Question", "name": "Can you restore grey weathered decking?", "acceptedAnswer": { "@type": "Answer", "text": "In most cases, yes. Our cleaning and brightening process reverses grey weathering by removing the degraded surface layer and revealing the original timber colour beneath. Very severely weathered timber may require light sanding before treatment." } }, { "@type": "Question", "name": "What oil do you use?", "acceptedAnswer": { "@type": "Answer", "text": "We use professional-grade water-based penetrating decking oils from Osmo, Owatrol or similar premium brands. These oils absorb fully into the grain, do not peel or flake, and provide UV protection, water repellency and enhanced colour." } }, { "@type": "Question", "name": "Can you clean composite decking?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We use composite-specific cleaning solutions and techniques that remove algae and mould without damaging the board surface or voiding manufacturer warranties." } }, { "@type": "Question", "name": "How often should I have my deck cleaned?", "acceptedAnswer": { "@type": "Answer", "text": "Annually for most timber decking in London. Composite decking can typically go 18–24 months between cleans. Shaded decks or those near water features may need more frequent attention." } }, { "@type": "Question", "name": "Will pressure washing damage my decking?", "acceptedAnswer": { "@type": "Answer", "text": "Not at the pressures we use. We operate at significantly lower pressure than driveway cleaning and work with the grain direction. Consumer pressure washers are more likely to cause damage because they lack the fine control of professional equipment." } }, { "@type": "Question", "name": "What areas do you cover?", "acceptedAnswer": { "@type": "Answer", "text": "We serve all of London and Surrey including Worcester Park, Sutton, New Malden, Morden, Chessington, Coulsdon and surrounding areas." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://mossmenroofcleaning.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "https://mossmenroofcleaning.co.uk/services" }, { "@type": "ListItem", "position": 3, "name": "Decking Cleaning" } ] } ] --- We use cookies for essential site functions and, with your consent, analytics and advertising. 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Decking Cleaning ![Professional Decking Cleaning Timber & Composite Restored](/assets/hero-services-C8s8mmDU.jpg) # Professional Decking Cleaning Timber & Composite Restored London & Surrey We remove algae, mould, grey weathering and ground-in dirt from timber and composite decking — then oil and treat to protect against future damage. Your deck will look and feel like new timber again. [Get Your Free Estimate](/contact)[0800 654 6701](tel:08006546701) Or call our mobile: [07551 442228](tel:+447551442228) ★ 5-Star Rated · Timber & Composite · Oiling & Treatment Included 20+ Years Experience 800+ Decks Restored Oil & Treat Included Fully Insured Free Estimates ## What Is Professional Decking Cleaning? Professional decking cleaning is the controlled removal of algae, mould, grey weathering, food stains, tannin bleeding and embedded dirt from timber or composite decking surfaces. We use a combination of low-pressure washing, specialist wood cleaning solutions and mechanical scrubbing to restore the original colour and texture without damaging the wood fibres or composite surface. Timber decking — whether softwood (pine, spruce) or hardwood (oak, iroko, ipe) — degrades rapidly in the UK climate without regular maintenance. The combination of rain, UV exposure and organic growth turns warm, golden timber into grey, slimy, dangerous surfaces within 2–3 years of installation. Composite decking (made from wood fibre and plastic polymer) is marketed as low-maintenance but is not maintenance-free. Algae and mould still colonise composite surfaces, creating slip hazards and discolouration that requires professional cleaning to resolve. After cleaning, we apply appropriate treatment: decking oil for timber (penetrating into the grain to nourish, protect and restore colour) or specialist composite cleaner-sealant for composite boards. This protective treatment is essential — cleaning without treating leaves timber vulnerable to immediate re-weathering. ## Why Neglected Decking Becomes Dangerous and Expensive The single biggest risk of neglected decking is slip injuries. Algae and mould create a biofilm on the surface that becomes extremely slippery when wet. Decking-related falls are one of the most common garden injuries in the UK, and the risk is highest on untreated timber that has been installed for more than 12 months. Grey weathering is not just cosmetic — it is the visible breakdown of lignin, the natural binder in wood. As UV light and moisture destroy lignin, the surface fibres loosen, creating a rough, splintering texture that catches bare feet and becomes increasingly difficult to restore the longer it is left. Mould growth penetrates into the grain of timber decking, causing wood rot from the surface inward. Left untreated, this compromises the structural integrity of the boards and, eventually, the joists beneath them. Replacing rotted deck boards is far more expensive than annual cleaning and oiling. Composite decking suffers from a different problem — mould growth within the textured surface grooves becomes permanently embedded if not cleaned within 2–3 years. Beyond this point, the discolouration becomes permanent and the boards may need replacing. The cost to replace a standard residential deck in London ranges from £2,000 to £5,000. Annual cleaning and treatment costs a fraction of this and keeps your deck safe, attractive and structurally sound for 15–20 years. Our Proven System ## How We Deliver Results 01 ### Condition Assessment We inspect your decking to identify the timber type, current condition, type of contamination and any structural concerns. This determines the correct cleaning approach and treatment products. 02 ### Furniture & Area Preparation Garden furniture, pots and accessories are moved clear. Surrounding plants and surfaces are protected. We prepare the full deck area for cleaning. 03 ### Low-Pressure Cleaning Using controlled low-pressure washing with a fan nozzle, we clean every board surface and the gaps between boards. We work with the grain direction to avoid raising wood fibres or damaging the surface. 04 ### Brightening Treatment After cleaning, we apply a wood brightener that neutralises cleaning chemicals, restores the wood's natural pH and brings back the original warm colour of the timber. 05 ### Oiling & Protection Once the deck is fully dry, we apply two coats of high-quality decking oil (for timber) or specialist protector (for composite). This penetrates the grain, repels water, blocks UV damage and restores the natural colour. Why It Matters ## What You Get ### Eliminates Slip Hazards All algae and biofilm removed, making your deck safe to walk on barefoot in any weather. The treated surface resists future algae growth. ### Restores Original Colour Grey weathered timber transformed back to its original warm tones. The colour difference is dramatic and immediate. ### Prevents Wood Rot Cleaning removes mould that causes surface rot, and oil treatment seals the grain against moisture penetration that leads to structural decay. ### Extends Deck Lifespan Annual cleaning and oiling extends timber deck lifespan from 10 years (untreated) to 20+ years — saving thousands in premature replacement. ### Protects Against UV Damage Decking oil contains UV inhibitors that slow the breakdown of lignin, preventing the grey weathering that degrades untreated timber. ### Splinter-Free Surface Cleaning and oiling smooths the surface fibres, eliminating the rough, splintering texture that develops on neglected timber. ## Decking Types, Treatment Options & Maintenance Softwood decking (typically pressure-treated pine or spruce) is the most common type in UK gardens. It is affordable, easy to work with and accepts stain and oil treatments well. However, softwood is more susceptible to algae, mould and weathering than hardwood, and requires annual cleaning and treatment to maintain its condition and safety. Hardwood decking (oak, iroko, ipe, balau) is naturally more resistant to rot and insect attack, but still requires maintenance. Hardwoods weather to a silver-grey colour within 12–18 months if left untreated. While some homeowners prefer the grey patina, the surface still develops algae and requires cleaning for safety. If you prefer the natural colour, annual oiling is essential. Composite decking (Trex, Millboard, TimberTech and similar brands) combines wood fibre with plastic polymer to create boards that do not rot, splinter or require oiling. However, the textured surface traps algae and mould, and composite cannot be sanded or refinished if damaged. Professional cleaning with composite-specific solutions is the only effective maintenance option. For timber decking, we use water-based decking oils that penetrate the grain rather than sitting on the surface as a film. Film-forming products (varnishes, paints) peel and flake within 1–2 years in UK conditions, creating ongoing maintenance problems. Penetrating oils absorb fully, nourish the timber and wear gradually without peeling. We offer a choice of oil finishes: clear (maintains the natural wood colour with added protection), tinted (available in cedar, oak, walnut and dark tones to match your preference) and anti-slip (incorporating fine aggregate for maximum grip in wet conditions). Anti-slip oil is recommended for decks around swimming pools, hot tubs and areas with heavy foot traffic. Deck maintenance schedules depend on exposure. South-facing decks in full sun need oiling every 12 months as UV exposure breaks down the oil faster. North-facing or shaded decks retain oil longer but develop algae faster, requiring cleaning every 12 months with oiling every 18–24 months. Structural inspection is included in our service. We check for soft or bouncy boards, corroded screws and fixings, joist rot (particularly at ground contact points) and any safety concerns. If we identify structural issues, we advise on the appropriate repair before it becomes a larger problem. Common Questions ## Frequently Asked Questions ### How much does decking cleaning cost in London? ### How long does decking cleaning take? ### Can you restore grey weathered decking? ### What oil do you use? ### Can you clean composite decking? ### How often should I have my deck cleaned? ### Will pressure washing damage my decking? ### What areas do you cover? ## Related Services [Fence Cleaning](/services/fence-cleaning)[Patio Cleaning](/services/patio-cleaning)[Pressure Washing](/services/pressure-washing)[Softwashing](/services/softwashing) ## Ready to Get Started? Your Free Estimate Is One Call Away No obligation. No hard sell. Just honest advice and a clear price from a family-run team with over 20 years of experience. [Get Your Free Estimate](/contact)[0800 654 6701](tel:08006546701) Or call our mobile: [07551 442228](tel:+447551442228) 2hr Response Fully Insured Fully Insured ![Moss Men Roof Cleaning London](/assets/logo-CL4rb57L.png) Family-run [roof cleaning](/services/roof-cleaning) and [pressure washing](/services/pressure-washing) specialists serving [London](/areas/london) & [Surrey](/areas/surrey). Over 20 years protecting your property. ### Services - [Roof Cleaning](/services/roof-cleaning) - [Pressure Washing](/services/pressure-washing) - [Gutter Cleaning](/services/gutter-cleaning) - [Driveway Cleaning](/services/driveway-cleaning) - [Patio Cleaning](/services/patio-cleaning) - [Softwashing](/services/softwashing) - [Decking Cleaning](/services/decking-cleaning) - [Fence Cleaning](/services/fence-cleaning) - [Solar Panel Cleaning](/services/solar-panel-cleaning) ### Areas We Cover - [London](/areas/london) - [Surrey](/areas/surrey) - [Worcester Park](/areas/worcester-park) - [Sutton](/areas/sutton) - [New Malden](/areas/new-malden) - [Morden](/areas/morden) - [Chessington](/areas/chessington) - [Coulsdon](/areas/coulsdon) ### Contact [0800 654 6701](tel:08006546701) [07551 442228](tel:+447551442228) [mossmenlondon@gmail.com](mailto:mossmenlondon@gmail.com) 55 Wolsey Close, Worcester Park, Surrey, KT4 7EF Opening Hours: 24 Hrs Line Open, Monday – Sunday [Our Work](/our-work)[Blog](/blog)[Specials & Offers](/specials)[Customer Reviews](/reviews) © 2026 Moss Men Roof Cleaning London. 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