Harlow, Essex CM18 7DQ Rooftogroundexteriors@outlook.com Open 7 days · 6am–9pm 01279 295996 AboutServices Service Areas Our WorkReviewsContact 01279 295996Request Free Estimate Home/Services/Roof Cleaning & Moss Removal Harlow · Essex · Hertfordshire # Roof Cleaning & Moss RemovalAcross Harlow, Essex & Hertfordshire.Low-pressure. Steam-cleaned. Biocide as standard. Low-pressure washing and steam, hand-scraping of moss, plus a biocidal treatment as standard — never harsh high-pressure that could damage tiles. Fixed-price quotes, usually returned within 24 hours. From £650Fixed quote before any work Get My Free Estimate 01279 295996 Prices start from the amounts shown — you'll get a fixed quote with no surprises before any work begins. From £650 (3-bed semi) — fixed price Free quotes usually within 24 hours Fully insured — £5m public liability City & Guilds qualified in biocides Keeps moss & algae away 6+ years Free January/February follow-up included Service Overview ## Understanding roof cleaning & moss removal ## What it is Roof cleaning is the controlled removal of moss, lichen, algae and atmospheric staining from concrete, clay, slate and composite tiles. Our method combines low-pressure washing and steam cleaning, hand-scraping of moss and a biocidal treatment applied as standard. It is not harsh high-pressure jet-washing. Done correctly it restores the original tile colour, lifts established moss and adds years to the surface life. ## Who it's for Any homeowner whose roof shows green, black or orange streaking, visible moss clumps along the ridges or in valleys, or moss debris falling into gutters and onto driveways. Particularly important for properties under tree cover, north-facing pitches, and any home older than 8 years that has never been treated. ## When you need it Late spring through early autumn is ideal — dry tiles take the biocide better and the kill-off cycle finishes before winter rain. However we work year-round, 7 days a week including weekends, in suitable weather. Often booked in within the same week — and next-day when availability allows. ## Why professional help matters Harsh high-pressure jet-washing strips the protective surface layer of concrete tiles, breaks granule bonds on composite tiles and can drive water under laps causing internal leaks. Our combination of low-pressure washing, steam, hand-scraping and biocidal treatment cleans tiles properly without that damage. If left untreated ## The cost of doing nothing. - Moss roots lift tile edges, letting wind-driven rain track under the lap and into the loft. - Lichen secretes mild acid that etches the cement matrix of concrete tiles, shortening their life by up to 30%. - Saturated moss can hold 20× its weight in water, adding hundreds of kilos of dead-load to the roof structure. - Blocked valleys and gutters from fallen moss cause overflow, fascia rot, render staining and damp internally. - An unmaintained roof can knock 5–10% off a property's perceived value at survey. Common mistakes ## What we see go wrong. - Hiring a window cleaner with a high-pressure jet washer — strips tiles in a single visit. - Skipping the biocide — moss returns within a year or two because spores are airborne. We include biocide as standard for this reason (skip on request if you prefer no chemicals). - Choosing the cheapest quote without insurance documents — falls from roofs are the #1 fatal accident in trades. - Treating the roof but ignoring the gutters — debris washes straight in and blocks the drop. Our Process ## A predictable system, from first call to clean-up - 01 ### Inspection Drone or ladder survey of pitch, condition, tile type, valleys, ridges and chimney flashings. Photographs shared with you. - 02 ### Fixed-Price Quote Itemised, written, no-pressure quote — usually within 24 hours. Complex roofs may need a quick site visit first. The price we quote is the price you pay; any extra work would be quoted separately first. - 03 ### Hand-Scrape & Low-Pressure Clean Bulk moss hand-scraped, tiles cleaned with low-pressure washing and steam in working sections, debris bagged off-roof — never washed into gutters. - 04 ### Biocidal Treatment (standard) Biocidal wash applied to every surface as standard, to slow moss and algae returning. Optional — skip on request if you prefer no chemicals. - 05 ### Clean-Up & Free Follow-Up Booked Gutters cleared, drives rinsed of run-off, written job summary issued. Free January/February follow-up visit booked to re-clear gutters of debris at no charge. The Benefits ## What you actually get for the money. - ### Low-pressure, never damaging Low-pressure washing, steam and hand-scraping — clean tiles without the damage of high-pressure jet-washing. - ### Biocide as standard (optional) Our roof cleans keep moss and algae away for at least 6 years. After that, a quick biocide top-up keeps your roof protected. Happy to skip the biocide if you prefer no chemicals. - ### Free follow-up visit Free January/February visit included to re-clear gutters of debris. No charge, no upsell. - ### Fixed-price quotes The price we quote is the price you pay. Any extra work would be quoted separately first. - ### £5m public liability cover Fully insured. City & Guilds qualified in the professional use of biocides. Documents on request. - ### Local accountability Family-run from Harlow CM18. Open 7 days a week, including weekends. Deep Detail ## The technical bit — for the people who like to know ### Tile types we treat Marley & Redland concrete (Mendip, Modern, Wessex), Sandtoft, Marley Eternit slate, Welsh slate, Spanish slate, Forticrete and most clay pantiles. Each requires a different cleaning approach and biocide dilution — we calibrate per job. ### Our method vs harsh pressure washing Harsh high-pressure jet-washing (3,000+ psi) strips tile surfaces. Our method combines low-pressure washing and steam cleaning with hand-scraping of moss and a biocidal treatment as standard. You get a proper physical clean without stripping tiles, plus chemical treatment to slow regrowth. ### Moss vs lichen vs algae Moss is the visible green pad — physical hand-scraping needed. Lichen is the orange/yellow crust — bonds to tile chemistry, needs biocide dwell-time of 20+ minutes. Algae (gloeocapsa magma) is the black streak on north slopes — purely a biocide job, no scraping required. We identify the dominant contamination on inspection. ### Access & safety Roof ladders, edge protection and bagged-debris protocols mean nothing falls and no neighbours are inconvenienced. Fully insured with £5m public liability cover. Tower scaffolding set-up where access requires it — factored into the quote. ### Residential vs commercial roofs Domestic pitched roofs are our core. We also clean small commercial pitched roofs (offices, units, schools) — typically scheduled out-of-hours. RAMS documentation available on request for commercial jobs. Flat roofs and industrial profiled metal are handled by separate specialist quotation. FAQ ## Straight answers to common questions How much does a roof clean cost in Essex? Roof cleaning starts from £650, based on a typical 3-bed semi. Final price depends on roof size, extensions and access — for example tower scaffolding set-up. Every quote is fixed: the price we quote is the price you pay. How long does a roof clean last? How long does it take? Do you use pressure washers on roofs? Is biocide always included? Will the biocide harm my plants or pets? Do you guarantee the work? How quickly can you quote? Are you insured? Do I need to be home? ## A new-looking roof, without a new-roof price. Roof cleaning from £650. Fixed-price quote usually within 24 hours. Get My Free Estimate 01279 295996 Fully insured · Companies House #15556482 · Family-run · 4+ years ## Related services - Gutter Clearing & Maintenance - Fascia & Soffit Cleaning - Render & Exterior Wall Cleaning ## We cover Based in Harlow CM18, working across Essex and Hertfordshire. HarlowBishop's StortfordBroxbourneWaltham AbbeyLoughtonBrentwoodWalthamstowChingfordGreat DunmowMuch Hadham ← Back to home·All services·Contact us 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 Rooftogroundexteriors@outlook.com 90 The Briars, Harlow CM18 7DQ, United Kingdom Facebook Opening HoursOpen 24/7 · Monday – Sunday CHECKATRADE9.85/10 · 96+ reviews Services - Roof Cleaning & Moss Removal - Gutter Clearing & Maintenance - Fascia & Soffit Cleaning - Pressure Washing - Driveway & Patio Cleaning - Conservatory Roof & Frame Cleaning - Solar Panel Cleaning - Render & Exterior Wall Cleaning - Exterior Window Cleaning Service Areas - Harlow - Bishop's Stortford - Broxbourne - Waltham Abbey - Loughton - Brentwood - Walthamstow - Chingford - Great Dunmow - Much Hadham - Epping - Sawbridgeworth - Hertford - Ware - Hoddesdon - Cheshunt - Chipping Ongar - Stansted Mountfitchet - Buckhurst Hill - North Weald Bassett Company - About Us - Our Work - Reviews - Contact © 2026 Roof to Ground Exteriors Ltd. All rights reserved. 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