# Render Cleaning

> Render cleaning across the UK: low-pressure soft wash cleaning for silicone, K-Rend, monocouche, acrylic and painted render, removing green algae, black mould and staining.

Render Cleaning provides render cleaning for homeowners, landlords, housebuilders and managing agents across England, Scotland, Wales and Northern Ireland (250 towns and cities). Customers request a free fixed-price quote using the online form on any page.

## Key facts
- Service: Render cleaning
- Coverage: England, Scotland, Wales and Northern Ireland
- Typical cost: Cleaning the render on a typical terraced or semi-detached house usually costs £300 to £600, and a detached house £600 to £1,200. Per square metre rates are typically £4 to £8, with a protective treatment usually adding £1 to £3 per square metre.
- How to get a quote: online form, replies usually the same day

## Guides
- [How much does render cleaning cost in the UK? (2026 guide)](https://render-cleaning.pages.dev/guides/render-cleaning-cost-uk/): In 2026, cleaning the render on a typical UK terraced or semi-detached house usually costs £300 to £600, and a detached house £600 to £1,200. Per square metre rates are typically £4 to £8, and a protective after-treatment usually adds around £1 to £3 per square metre.
- [Why is my render going green? Causes and how to fix it](https://render-cleaning.pages.dev/guides/why-is-my-render-going-green/): Render goes green because algae grows on surfaces that stay damp, especially north-facing walls, walls near trees and areas below sills and copings. Black marks are usually mould or other algae, and orange staining is often Trentepohlia algae or iron in run-off. The fix is a low-pressure clean with a suitable biocide, ideally followed by a protective treatment.
- [Can you pressure wash render? Safer ways to clean it](https://render-cleaning.pages.dev/guides/can-you-pressure-wash-render/): Pressure washing render is not recommended. High pressure can erode the surface, damage silicone and through-coloured finishes, open up fine cracks and force water into the wall, and some manufacturers say it may affect their guarantees. Low-pressure soft washing with a suitable biocide cleans render safely and keeps it clean for longer.
- [How to choose a render cleaning company: questions to ask and red flags](https://render-cleaning.pages.dev/guides/how-to-choose-a-render-cleaning-company/): Choose a render cleaning company that identifies your render type, cleans at low pressure with a biocide suited to it, explains how plants and surfaces will be protected, and gives a written fixed price covering access, cleaning and rinsing. Avoid anyone who plans to pressure wash render, cannot name the products they use, or will not explain how they work safely at height.
- [What type of render do I have? How to identify it before cleaning](https://render-cleaning.pages.dev/guides/what-type-of-render-do-i-have/): You can usually identify render by its age, thickness, texture and colour: silicone and acrylic are thin coats with a fine texture, often on newer homes; monocouche is a thick, through-coloured coat with a scraped finish; sand-and-cement is usually painted; and pebbledash and Tyrolean have obvious stone or flicked textures. Knowing the type determines the safest cleaning method and product.
- [Clean, repaint or re-render? Choosing the right fix for tired render](https://render-cleaning.pages.dev/guides/clean-repaint-or-re-render/): If render is sound and simply stained by algae or dirt, cleaning is by far the cheapest fix and usually restores most of its appearance. Repainting suits painted render that is flaking or faded, a coloured coating suits sound render whose colour has faded unevenly, and re-rendering is only needed where render is cracked, hollow or failing.
- [Render cleaning: how long it takes and what to expect on the day](https://render-cleaning.pages.dev/guides/render-cleaning-what-to-expect/): Most terraced and semi-detached houses take one day to clean and a larger detached house one to two days. You need to clear access around the walls and provide an outside tap if one is needed. Most growth disappears on the day, but some staining, especially black spots of lichen, can take several weeks to fade fully as the biocide keeps working.
- [How to keep render clean: maintenance and aftercare guide](https://render-cleaning.pages.dev/guides/render-maintenance-guide/): Most render needs a full clean every few years, with shaded, north-facing and tree-lined walls needing attention more often. You can slow regrowth by fixing leaking gutters and downpipes, keeping trees and shrubs trimmed back, making sure sills shed water away from the wall, applying a protective treatment and booking a light maintenance clean before growth gets heavy.

## Services
- Silicone render cleaning: Silicone thin-coat renders, including K-Rend Silicone and similar systems, cleaned gently so the water-repellent surface is not stripped or eroded.
- Monocouche render cleaning: Through-coloured single-coat render cleaned at low pressure to remove algae and dirt and bring back an even colour without scrubbing marks.
- Painted and sand-and-cement render: Older painted render and masonry paint cleaned before repainting or to refresh it, with loose or failing paint noted as we go.
- Pebbledash and Tyrolean cleaning: Textured finishes where dirt sits deep in the surface cleaned with a longer biocide dwell time rather than high pressure.
- Rust, run-off and stain treatment: Orange iron staining, streaks under sills and copings, and atmospheric dirt treated with the appropriate cleaner for that type of mark.
- Protective after-treatment: An optional biocidal or water-repellent treatment applied after cleaning to slow algae returning, suited to the render type.

## Areas by region
- [Render cleaning in London](https://render-cleaning.pages.dev/areas/london/): Croydon, Bromley, Barnet, Enfield, Ealing, Harrow, Hillingdon, Uxbridge, Hounslow, Kingston upon Thames, Richmond, Twickenham, Wimbledon, Sutton, Romford, Ilford, Bexleyheath, Orpington, Greenwich, Lewisham, Islington, Camden, Hackney, Walthamstow, Wembley, Battersea, Fulham, Chelsea
- [Render cleaning in South East](https://render-cleaning.pages.dev/areas/south-east/): Brighton, Hove, Eastbourne, Hastings, Crawley, Worthing, Chichester, Horsham, Bognor Regis, Guildford, Woking, Epsom, Redhill, Reigate, Camberley, Farnham, Staines, Weybridge, Esher, Maidstone, Canterbury, Tunbridge Wells, Ashford, Dartford, Gravesend, Sevenoaks, Margate, Folkestone, Chatham, Rochester, Gillingham, Reading, Slough, Windsor, Maidenhead, Bracknell, Newbury, Wokingham, Oxford, Banbury, Bicester, Abingdon, Henley-on-Thames, Witney, Milton Keynes, High Wycombe, Aylesbury, Amersham, Southampton, Portsmouth, Basingstoke, Winchester, Andover, Farnborough, Fareham, Eastleigh, Havant
- [Render cleaning in East of England](https://render-cleaning.pages.dev/areas/east-of-england/): Cambridge, Peterborough, Ely, Huntingdon, St Neots, Norwich, King's Lynn, Great Yarmouth, Ipswich, Bury St Edmunds, Lowestoft, Colchester, Chelmsford, Southend-on-Sea, Basildon, Brentwood, Harlow, Braintree, Luton, Bedford, St Albans, Watford, Stevenage, Hemel Hempstead, Hertford, Welwyn Garden City, Bishop's Stortford, Hitchin
- [Render cleaning in South West](https://render-cleaning.pages.dev/areas/south-west/): Bristol, Bath, Taunton, Weston-super-Mare, Yeovil, Exeter, Plymouth, Torquay, Barnstaple, Truro, Falmouth, Newquay, St Austell, Bournemouth, Poole, Dorchester, Weymouth, Swindon, Salisbury, Chippenham, Gloucester, Cheltenham, Stroud
- [Render cleaning in West Midlands](https://render-cleaning.pages.dev/areas/west-midlands/): Birmingham, Coventry, Wolverhampton, Solihull, Sutton Coldfield, Dudley, Walsall, West Bromwich, Stoke-on-Trent, Stafford, Lichfield, Tamworth, Burton upon Trent, Worcester, Redditch, Kidderminster, Bromsgrove, Hereford, Shrewsbury, Telford, Warwick, Leamington Spa, Nuneaton, Rugby, Stratford-upon-Avon
- [Render cleaning in East Midlands](https://render-cleaning.pages.dev/areas/east-midlands/): Nottingham, Mansfield, Newark, Derby, Chesterfield, Leicester, Loughborough, Hinckley, Northampton, Kettering, Corby, Wellingborough, Lincoln, Grantham, Boston
- [Render cleaning in North West](https://render-cleaning.pages.dev/areas/north-west/): Manchester, Salford, Stockport, Bolton, Wigan, Oldham, Rochdale, Bury, Altrincham, Liverpool, Birkenhead, St Helens, Southport, Warrington, Chester, Crewe, Macclesfield, Preston, Blackpool, Blackburn, Burnley, Lancaster, Carlisle, Kendal
- [Render cleaning in Yorkshire](https://render-cleaning.pages.dev/areas/yorkshire/): Leeds, Bradford, Wakefield, Huddersfield, Halifax, Keighley, Dewsbury, Harrogate, York, Scarborough, Sheffield, Doncaster, Rotherham, Barnsley, Hull, Beverley
- [Render cleaning in North East](https://render-cleaning.pages.dev/areas/north-east/): Newcastle upon Tyne, Sunderland, Gateshead, South Shields, Durham, Darlington, Middlesbrough, Stockton-on-Tees, Hartlepool
- [Render cleaning in Wales](https://render-cleaning.pages.dev/areas/wales/): Cardiff, Swansea, Newport, Bridgend, Barry, Wrexham, Bangor, Llandudno, Aberystwyth, Carmarthen
- [Render cleaning in Scotland](https://render-cleaning.pages.dev/areas/scotland/): Glasgow, Edinburgh, Aberdeen, Dundee, Inverness, Stirling, Perth, Paisley, East Kilbride, Livingston, Ayr
- [Render cleaning in Northern Ireland](https://render-cleaning.pages.dev/areas/northern-ireland/): Belfast, Lisburn, Newry, Derry

## Optional
- [Full FAQ and content](https://render-cleaning.pages.dev/llms-full.txt)
- [All areas](https://render-cleaning.pages.dev/areas/)

## Service pages
- [Silicone render cleaning](https://render-cleaning.pages.dev/services/silicone-render-cleaning/): Silicone render cleaning removes green algae, black mould and dirt from silicone thin-coat render using low-pressure application of a biocide and a gentle rinse, so the water-repellent surface is not stripped. It suits newer homes, extensions and estates finished in silicone render. A typical semi-detached house usually costs £300 to £600 in the UK.
- [Monocouche render cleaning](https://render-cleaning.pages.dev/services/monocouche-render-cleaning/): Monocouche render cleaning removes algae, mould and dirt from through-coloured single-coat render using a low-pressure biocide treatment and an even rinse. It suits homes finished in monocouche systems that have gone green, grey or streaky. Cleaning a typical semi-detached house usually costs £300 to £600 in the UK, depending on area, height and growth.
- [Painted and sand-and-cement render cleaning](https://render-cleaning.pages.dev/services/painted-and-sand-and-cement-render-cleaning/): Painted and sand-and-cement render cleaning removes algae, mould and dirt from traditional render and masonry paint using low-pressure biocide treatment and rinsing. It suits older homes with painted render that has gone green or grey, and anyone preparing render for repainting. Cleaning a typical semi-detached house usually costs £300 to £600 in the UK.
- [Pebbledash and Tyrolean cleaning](https://render-cleaning.pages.dev/services/pebbledash-and-tyrolean-cleaning/): Pebbledash and Tyrolean cleaning removes algae, moss, lichen and dirt from textured render finishes using a biocide given a longer dwell time, rather than high pressure that can dislodge stones and texture. It suits older homes with pebbledash or spar dash and properties finished in Tyrolean render. A typical semi-detached house usually costs £350 to £700 in the UK.
- [Render rust, run-off and stain removal](https://render-cleaning.pages.dev/services/render-rust-and-stain-removal/): Render stain removal treats specific marks that a general biocide clean does not shift, including orange iron staining, red or orange algae, streaks under sills and copings, and atmospheric dirt, using a cleaner matched to the cause. It suits homes with discoloured patches on otherwise clean render. Spot treatment usually costs £100 to £300 in the UK, or less alongside a full clean.
- [Protective treatment for render](https://render-cleaning.pages.dev/services/render-protective-treatment/): A protective render treatment is a biocidal or water-repellent product applied to clean render to slow algae, mould and dirt coming back. It suits shaded, north-facing or tree-lined walls that green up quickly after cleaning. A protective treatment typically adds £1 to £3 per square metre to a render clean in the UK, depending on the product and render type.

## Glossary
- [Render cleaning glossary](https://render-cleaning.pages.dev/glossary/)