--- title: "Render & Wall Cleaning Harlow, Essex | K-Rend, Pebbledash, Painted" description: "K-Rend, pebbledash and painted render cleaning across Harlow and Essex. Biocidal SoftWash that lasts years. Insured. Free, no-obligation quote." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "HomeAndConstructionBusiness", "name": "Roof to Ground Exteriors Ltd", "image": "/__l5e/assets-v1/7f765450-01a8-441e-ab2f-72340ed28e3e/rtg-favicon-v2.png", "telephone": "01279 295996", "email": "Rooftogroundexteriors@outlook.com", "url": "https://rooftogroundexteriors.co.uk", "address": { "@type": "PostalAddress", "streetAddress": "90 The Briars", "addressLocality": "Harlow", "postalCode": "CM18 7DQ", "addressCountry": "GB" }, "geo": { "@type": "GeoCoordinates", "latitude": 51.7509908, "longitude": 0.1035349 }, "areaServed": [ "Harlow", "Bishop's Stortford", "Broxbourne", "Waltham Abbey", "Loughton", "Brentwood", "Walthamstow", "Chingford", "Great Dunmow", "Essex", "Hertfordshire" ], "sameAs": [ "https://www.facebook.com/profile.php?id=61559527208402", "https://share.google/sANF7lRtJJUVNNodz" ], "openingHoursSpecification": [ { "@type": "OpeningHoursSpecification", "dayOfWeek": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" ], "opens": "00:00", "closes": "23:59" } ], "identifier": "15556482", "priceRange": "££", "description": "90 The Briars, Harlow CM18 7DQ, United Kingdom. Roof cleaning, gutter clearing, pressure washing and exterior maintenance across Essex & Hertfordshire." }, { "@context": "https://schema.org", "@type": "Organization", "name": "Roof to Ground Exteriors Ltd", "legalName": "Roof to Ground Exteriors Ltd", "url": "https://rooftogroundexteriors.co.uk", "logo": "/__l5e/assets-v1/7f765450-01a8-441e-ab2f-72340ed28e3e/rtg-favicon-v2.png", "telephone": "01279 295996", "email": "Rooftogroundexteriors@outlook.com", "address": { "@type": "PostalAddress", "streetAddress": "90 The Briars", "addressLocality": "Harlow", "postalCode": "CM18 7DQ", "addressCountry": "GB" }, "sameAs": [ "https://www.facebook.com/profile.php?id=61559527208402", "https://share.google/sANF7lRtJJUVNNodz" ], "identifier": "15556482" }, { "@context": "https://schema.org", "@type": "WebSite", "name": "Roof to Ground Exteriors Ltd", "url": "https://rooftogroundexteriors.co.uk/", "inLanguage": "en-GB", "publisher": { "@type": "Organization", "name": "Roof to Ground Exteriors Ltd" }, "potentialAction": { "@type": "SearchAction", "target": "https://rooftogroundexteriors.co.uk/services?q={search_term_string}", "query-input": "required name=search_term_string" } }, { "@context": "https://schema.org", "@type": "Service", "serviceType": "Render & Exterior Wall Cleaning", "name": "Render & Exterior Wall Cleaning", "description": "K-Rend, pebbledash and painted render cleaning across Harlow and Essex. Biocidal SoftWash that lasts years. Insured. Free, no-obligation quote.", "url": "https://rooftogroundexteriors.co.uk/services/render-walls", "areaServed": [ "Harlow", "Essex", "Hertfordshire" ], "provider": { "@type": "LocalBusiness", "name": "Roof to Ground Exteriors Ltd", "telephone": "+441279295996", "address": "90 The Briars, Harlow CM18 7DQ, United Kingdom", "identifier": "15556482" } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does render cleaning cost?", "acceptedAnswer": { "@type": "Answer", "text": "Quoted per elevation based on size, render type and access. Free, no-obligation quote." } }, { "@type": "Question", "name": "Will it damage my K-Rend?", "acceptedAnswer": { "@type": "Answer", "text": "No — SoftWash is the manufacturer-approved cleaning method specifically because it cannot drive water through the substrate." } }, { "@type": "Question", "name": "How long do results last?", "acceptedAnswer": { "@type": "Answer", "text": "Long-lasting in most postcodes. Get a free quote for a tailored estimate." } }, { "@type": "Question", "name": "Will it harm my plants?", "acceptedAnswer": { "@type": "Answer", "text": "We sheet-cover and pre-wet all foliage. Sodium hypochlorite breaks down to salt and water within 24 hours." } }, { "@type": "Question", "name": "Do you clean painted render?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — with milder biocide that won't lift weak paint. Test patch first." } }, { "@type": "Question", "name": "How long does it take?", "acceptedAnswer": { "@type": "Answer", "text": "Most homes half a day. Larger detached or 3-storey: full day." } }, { "@type": "Question", "name": "Will it lighten my paint colour?", "acceptedAnswer": { "@type": "Answer", "text": "No — biocide kills algae without affecting pigment." } }, { "@type": "Question", "name": "Are you insured?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — fully insured. Documents available on request." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://rooftogroundexteriors.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "https://rooftogroundexteriors.co.uk/services" }, { "@type": "ListItem", "position": 3, "name": "Render & Exterior Wall Cleaning", "item": "https://rooftogroundexteriors.co.uk/services/render-walls" } ] } ] --- Harlow, Essex CM18 7DQ [Rooftogroundexteriors@outlook.com](mailto:Rooftogroundexteriors@outlook.com) Open 7 days · 6am–9pm [01279 295996](tel:+441279295996) [![Roof to Ground Exteriors](/__l5e/assets-v1/4e2a4f67-0448-4563-88de-c363c3b8278d/rtg-logo.png)](/) [About](/about) [Services](/services) [Service Areas](/service-areas) [Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [01279 295996](tel:+441279295996)[Request Free Estimate](/contact) [](tel:+441279295996) ![British rendered garden wall mid-clean showing dramatic before-and-after contrast — algae-streaked render on one side, bright cleaned render on the other](/assets/render-walls-hero-DEfp2_ow.jpg) [Home](/)/ [Services](/services)/ Render & Exterior Wall Cleaning Harlow · Essex · Hertfordshire # Render & Exterior Wall Cleaning Walls Restored Without Repainting. Harlow, Essex & Hertfordshire. Modern silicone and acrylic renders attract algae like a magnet. Our SoftWash biocidal process kills the contamination at the spore and restores the original render colour — at a fraction of repainting cost, with long-lasting results. [Get My Free Estimate](/contact) [01279 295996](tel:+441279295996) Free, no-obligation quote. No pushy sales. Family-run, Harlow-based. K-Rend & SilkRend approved methods SoftWash biocidal — no pressure damage Fully insured Half-day job for most homes 4+ years render specialism Service Overview ## Understanding render & exterior wall cleaning ## What it is Low-pressure SoftWash biocidal cleaning of K-Rend, Weber, Parex and other through-coloured silicone renders, painted render, pebbledash, monocouche, and traditional painted brickwork. ## Who it's for Any homeowner with green or black streaking down their render (especially under windows, eaves and gable ends); anyone considering repainting before realising cleaning costs a fifth. ## When you need it Spring through autumn for fastest biocide action. Year-round in dry conditions. Best paired with gutter clear and fascia clean for whole-house restoration. ## Why professional help matters Pressure-washing modern silicone renders can drive water through the substrate and damage the colour layer. SoftWash uses near-zero pressure and biocidal chemistry to clean from within — the manufacturer-approved approach. If left untreated ## The cost of doing nothing. - Algae on render holds moisture against the substrate, accelerating cracking and degradation. - Black streaks under windows become permanent staining within 3 years untreated. - Repainting dirty render fails within a season — every job becomes two. - Pressure-washed render often shows pressure-track marks that are visible for years. - A streaked, neglected render shouts 'neglected property' from the kerb. Common mistakes ## What we see go wrong. - Repainting instead of cleaning — 5× the cost, same end result. - Pressure-washing K-Rend — voids the manufacturer warranty. - Using bleach without a biocide — kills the surface but not the spore, regrows in months. - Trusting a window cleaner with a SoftWash kit but no chemistry training. Our Process ## A predictable system, from first call to clean-up 1. 01 ### Inspection Render type identified, contamination assessed, surrounding planting protected. 2. 02 ### Pre-Wet Foliage and adjacent surfaces wet-rinsed for protection. 3. 03 ### SoftWash Application Sodium hypochlorite-based biocide applied at zero pressure via reach systems. 4. 04 ### Dwell & Rinse 20-minute dwell, then gentle rinse — contamination falls cleanly off. 5. 05 ### Post-Treat & Inspection Final biocidal mist for residual spore-kill, then a walk-round with you. The Benefits ## What you actually get for the money. - ### Restores original render colour Customers consistently mistake cleaned render for newly applied. - ### Cheaper than repainting 80%+ saving vs full repaint. - ### Manufacturer-approved on K-Rend & SilkRend Won't void render warranties. - ### Long-lasting results Biocide continues working on airborne spores. - ### Damage-free SoftWash Zero-pressure system can't drive water through the substrate. - ### Bundles with gutter & fascia Whole-house refresh at meaningful saving. Deep Detail ## The technical bit — for the people who like to know ### K-Rend & SilkRend Through-coloured silicone renders favoured by modern builders. Hugely susceptible to algae bloom. Pressure-washing is explicitly warranty-voiding — SoftWash is the only sanctioned method. ### Monocouche & traditional render Cement-based traditional render handled with the same SoftWash chemistry. Painted render cleaned without disturbing the paint film. ### Pebbledash Surface texture traps algae deeply. Two-pass SoftWash typically needed; we quote accordingly. ### Painted brick Cleaned with milder biocide to avoid lifting weak paint films. Always test-patched first. ### Why SoftWash works Sodium hypochlorite kills the cell membrane of algae, lichen and bacterial biofilms. Combined with a surfactant it penetrates the texture and clears the contamination without physical impact. Rinse removes dead matter, biocidal residue protects against new spore landing for 18–24 months. ### Residential vs commercial Domestic gables, returns and full elevations our core. Commercial render — schools, offices, retail — done on quotation with method statements and out-of-hours scheduling. FAQ ## Straight answers to common questions How much does render cleaning cost? Quoted per elevation based on size, render type and access. Free, no-obligation quote. Will it damage my K-Rend? How long do results last? Will it harm my plants? Do you clean painted render? How long does it take? Will it lighten my paint colour? Are you insured? ## Bring your render back — without a paintbrush. SoftWash specialists. Half-day job. Free, no-obligation quote. [Get My Free Estimate](/contact) [01279 295996](tel:+441279295996) Fully insured · Companies House #15556482 · Family-run · 4+ years ## Related services - [Roof Cleaning & Moss Removal ](/services/roof-cleaning) - [Fascia & Soffit Cleaning ](/services/fascia-soffit) - [Pressure Washing ](/services/pressure-washing) ## We cover Based in Harlow CM18, working across Essex and Hertfordshire. [Harlow](/service-areas)[Bishop's Stortford](/service-areas)[Broxbourne](/service-areas)[Waltham Abbey](/service-areas)[Loughton](/service-areas)[Brentwood](/service-areas)[Walthamstow](/service-areas)[Chingford](/service-areas)[Great Dunmow](/service-areas) [← Back to home](/)· [All services](/services)· [Contact us](/contact) ![Roof to Ground Exteriors](/__l5e/assets-v1/4e2a4f67-0448-4563-88de-c363c3b8278d/rtg-logo.png) Family-run exterior cleaning specialists serving Essex & Hertfordshire. Low-pressure washing, steam, hand-scraping and biocidal treatment — results that last years. Open 7 days, including weekends. [01279 295996](tel:+441279295996) [Rooftogroundexteriors@outlook.com](mailto:Rooftogroundexteriors@outlook.com) 90 The Briars, Harlow CM18 7DQ, United Kingdom [Facebook](https://www.facebook.com/profile.php?id=61559527208402) #### Opening Hours Open 24/7 · Monday – Sunday [CHECKATRADE 9.85/10 · 96+ reviews ](https://www.checkatrade.com/trades/rooftogroundexteriorsltd) #### Services - [Roof Cleaning & Moss Removal](/services) - [Gutter Clearing & Maintenance](/services) - [Fascia & Soffit Cleaning](/services) - [Pressure Washing](/services) - [Driveway & Patio Cleaning](/services) - [Conservatory Roof & Frame Cleaning](/services) - [Solar Panel Cleaning](/services) - [Render & Exterior Wall Cleaning](/services) - [Exterior Window Cleaning](/services) #### Service Areas - [Harlow](/service-areas) - [Bishop's Stortford](/service-areas) - [Broxbourne](/service-areas) - [Waltham Abbey](/service-areas) - [Loughton](/service-areas) - [Brentwood](/service-areas) - [Walthamstow](/service-areas) - [Chingford](/service-areas) - [Great Dunmow](/service-areas) #### Company - [About Us](/about) - [Our Work](/our-work) - [Reviews](/reviews) - [Contact](/contact) © 2026 Roof to Ground Exteriors Ltd. 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