--- title: "Softwashing & Render Cleaning South Wales | JPE" description: "Low-pressure biocide softwashing for render, K-Rend, painted masonry and brickwork across South Wales. 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Long-lasting, professional finish." }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does render cleaning cost?", "acceptedAnswer": { "@type": "Answer", "text": "Most standard 3-bed semis with typical algae fall between £250 and £600 for a full softwash, depending on elevations, access and how heavy the growth is. You'll get a fixed written price before we book anything in." } }, { "@type": "Question", "name": "Will the chemicals damage my plants or grass?", "acceptedAnswer": { "@type": "Answer", "text": "No. We mask off delicate planting and rinse down any overspray. The biocides we use break down in sunlight and don't leave a residue that damages lawns or borders when handled properly." } }, { "@type": "Question", "name": "How long will the render stay clean?", "acceptedAnswer": { "@type": "Answer", "text": "On a properly softwashed elevation, expect 2–4 years before you see meaningful regrowth. North-facing walls and heavily shaded elevations regrow faster than sunlit ones." } }, { "@type": "Question", "name": "Is it safe on K-Rend and silicone render?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — softwash is actually the recommended method on modern polymer renders. High pressure on K-Rend is one of the fastest ways to damage the finish." } }, { "@type": "Question", "name": "Do I need to be home while you work?", "acceptedAnswer": { "@type": "Answer", "text": "Not usually. As long as we have access to a tap and a bit of yard space we can crack on. We'll message before and after with photos." } }, { "@type": "Question", "name": "Can you clean render in Swansea and Cardiff?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We softwash across Swansea, Cardiff, Bridgend, Neath, Port Talbot and the surrounding areas — no long-distance surcharges for standard South Wales postcodes." } }, { "@type": "Question", "name": "What's the difference between softwashing and steam cleaning?", "acceptedAnswer": { "@type": "Answer", "text": "Softwashing uses chemistry to kill growth on porous surfaces like render. Steam cleaning uses heat and pressure to shift stubborn stains on hard surfaces like patios or block paving. Different tools, different jobs." } }, { "@type": "Question", "name": "Should I clean before painting my house?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — every time. Painting over live algae just seals the growth under a new coat, and it bleeds through within months. Softwash first, paint after." } } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "/services" }, { "@type": "ListItem", "position": 3, "name": "Softwashing & Render Cleaning", "item": "https://jpecleaning.co.uk/services/softwashing-render-cleaning" } ] } ] --- [07824 115602 ](tel:+447824115602)[info@jpecleaning.co.uk ](mailto:info@jpecleaning.co.uk) Mon–Fri 8:30–20:00 · Sat 8:30–16:00 [![JPE Cleaning Services logo — roof and exterior cleaning, Cwmafan, South Wales](/__l5e/assets-v1/4e950781-f53d-4c8f-810d-275d3e7d58f0/jpe-logo.png)](/) [Home](/)[About](/about) [Services](/services) [Areas](/areas) [Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [07824 115602 ](tel:+447824115602)[Get Free Quote](/contact) 1. [Home ](/) 2. [Services](/services) 3. Softwashing & Render Cleaning Softwashing & Render Cleaning · South Wales # Render & Softwash Cleaning Across South Wales — Algae Gone, Finish Intact Low-pressure biocide treatment that lifts algae, moss and grime from render, K-Rend and painted masonry without cracking, chipping or forcing water into the substrate. Long-lasting, professional finish. [Get My Free Quote](/contact) [07824 115602](tel:+447824115602) Owner-led by Joshua Evans Fully insured Quoted within 24 hours ![Rendered property after JPE softwashing — algae removed, render restored across South Wales](/__l5e/assets-v1/50c89cec-940c-4988-b346-95011de5b02e/softwashing-render-04-after.jpeg) - Owner-led by Joshua Evans — same face on every job - Fully insured for domestic & commercial work - Written quote within 24 hours of your photos - Serving South Wales — Port Talbot, Swansea, Bridgend, Neath, Cardiff ## What softwashing & render cleaning actually involves What it is A chemical-led, low-pressure clean using a professional biocide applied through soft-wash equipment. The biocide kills organic growth on contact and the render is rinsed down — the finish does the work, not brute pressure. Who it's for Homeowners with rendered elevations that have gone green, black or streaky. Particularly common on north-facing walls, gables and anything shaded by trees. When you need it When you can see green or black staining, when render looks tired even after rain, or before repainting — cleaning is a fraction of the cost of a re-render. Why do it properly Render is porous. High pressure drives water behind it and pops the finish off in patches. Softwashing kills the growth chemically so the surface only needs a gentle rinse. ## What happens if you leave it Every job we quote for is easier — and cheaper — than the one that follows it. Here's what tends to happen when this gets ignored. ### Algae eats into the render, not just onto it Green and black algae aren't just cosmetic — they hold moisture against the finish and slowly break down the top layer. Left long enough, patches start flaking and you're looking at re-render costs instead of a clean. ### Pressure washing render is a one-way ticket Every year we get calls to fix render that a well-meaning cleaner attacked with a jet washer. Once the finish is chipped or blown off, it can't be pressure-fixed. Softwash is the only professional route. ### Untreated growth spreads onto neighbouring surfaces Algae and moss on render seed the surrounding fascia, guttering and driveway. Cleaning the wall alone and leaving the source colonies untouched means you'll be back to square one within a season. ## Our process The same repeatable system on every job — so you know exactly what you're paying for and exactly what you're getting. 1. 1 ### Photo-based quote within 24 hours Send us photos of the affected elevations. We come back with a written price — no doorstep visits, no pressure. 2. 2 ### Site prep & masking Windows, doors, garden furniture and planting protected before any chemistry goes near the wall. 3. 3 ### Biocide application Professional soft-wash biocide applied at low pressure. It penetrates the organic growth and starts killing on contact. 4. 4 ### Dwell time & gentle rinse The biocide is left to work, then the render is rinsed with a soft flow of water. No blasting, no gouging. 5. 5 ### Final walk-round & sign-off We walk the elevations with you, confirm the finish and note anything worth flagging (e.g. hairline cracks that a re-paint should address later). ## What you actually get out of it Concrete outcomes — not vague promises. ### Render stays render No chipped edges, no blown patches, no water forced into the substrate. ### Kills, doesn't just rinse The biocide destroys the organism at the root — regrowth is slower and lighter. ### Uniform finish No streak lines from an inconsistent jet-wash pattern. ### Safe around windows and joinery Low-pressure application means no water pushed past seals. ### Great before repainting A softwashed wall is the ideal surface for a fresh coat — no ghosting through the paint. ### Longer-lasting than pressure Because we kill the growth, not just remove the visible layer, the finish stays cleaner for longer. ## Drag to see the difference Interactive before-and-after sliders from real softwashing & render cleaning jobs across South Wales. ![Rendered property after JPE softwashing — algae removed](/__l5e/assets-v1/50c89cec-940c-4988-b346-95011de5b02e/softwashing-render-04-after.jpeg)![Algae-stained K-Rend render before softwashing in South Wales](/__l5e/assets-v1/54c0f969-4a76-4da6-aee6-5c417aa4f560/softwashing-render-03-before.jpeg)Before After Render softwash — algae removed ![The same rendered wall after soft washing, algae gone and the render back to an even off-white finish](/__l5e/assets-v1/b1750cd7-3878-4dcf-a17d-4608c5af5198/softwashing-render-05-after.jpeg)![Rendered house wall before soft washing, streaked with dark green algae growth under the windows and along the base](/__l5e/assets-v1/7d8da7a0-db7e-46b9-87d9-0e3dd17c5a19/softwashing-render-01-before.jpeg)Before After Render softwash — full colour restored ## Recent softwashing & render cleaning work Real jobs from South Wales — during and after. ![Softwashing biocide being applied to render at low pressure](/__l5e/assets-v1/ca86f47a-f199-4280-9a85-5132bd4fddd0/softwashing-render-02-in-progress.jpeg) ![Render after softwashing — clean, even finish](/__l5e/assets-v1/b1750cd7-3878-4dcf-a17d-4608c5af5198/softwashing-render-05-after.jpeg) ![Freshly softwashed render showing full colour restoration](/__l5e/assets-v1/9098834c-f09b-44da-991e-2af5ac18ded8/softwashing-render-07-after.jpeg) ![Softwash treatment mid-application on rendered walls](/__l5e/assets-v1/1fadfb0c-a9b0-43bc-90c0-a71c717b814e/softwashing-render-09-in-progress.jpeg) ![Low-pressure biocide application in progress on render](/__l5e/assets-v1/5534865f-dd48-4078-bf8c-b2324d148491/softwashing-render-10-in-progress.jpeg) ![Render after softwashing — biocide treated for long-lasting finish](/__l5e/assets-v1/a7fd12db-7d4f-4e59-858d-96ee24d2f7ca/softwashing-render-11-after.jpeg) ![Softwashing render in progress with low-pressure equipment](/__l5e/assets-v1/73cc38f7-3db1-4273-93c2-bb26c88ab5b4/softwashing-render-12-in-progress.jpeg) ![Softwashing K-Rend in progress in South Wales](/__l5e/assets-v1/a917adec-463e-4da9-bcfe-5fef27521f48/softwashing-render-15-in-progress.jpeg) ![Render after full softwash — algae killed at the root](/__l5e/assets-v1/28c44403-7390-40e2-81ad-681edbf1715e/softwashing-render-16-after.jpeg) ## The detail most companies skip ### Surfaces we softwash Silicone render, sand-and-cement render, K-Rend and other polymer renders, pebbledash, painted masonry, brickwork and stone. Each surface takes a slightly different biocide dwell time and rinse pressure — the method is tuned to the wall. ### Softwash vs pressure wash — the real difference Pressure washing relies on mechanical force to blast dirt off. Softwashing relies on chemistry to kill and release the growth, then uses a low-pressure rinse to take it away. On render, softwash is the professional standard — pressure is a shortcut that costs more in the long run. ### What biocide actually does The biocides we use are specifically formulated for exterior masonry: they kill algae, lichen and moss at the cellular level, then break down in sunlight. They're not left as a residue coating your walls. ### Commercial and multi-storey work For blocks of flats, commercial buildings and taller elevations we scope access on a per-site basis and confirm the safest method before we quote. Method statements and RAMS provided on request. ## Frequently asked questions How much does render cleaning cost? + Most standard 3-bed semis with typical algae fall between £250 and £600 for a full softwash, depending on elevations, access and how heavy the growth is. You'll get a fixed written price before we book anything in. Will the chemicals damage my plants or grass? + No. We mask off delicate planting and rinse down any overspray. The biocides we use break down in sunlight and don't leave a residue that damages lawns or borders when handled properly. How long will the render stay clean? + On a properly softwashed elevation, expect 2–4 years before you see meaningful regrowth. North-facing walls and heavily shaded elevations regrow faster than sunlit ones. Is it safe on K-Rend and silicone render? + Yes — softwash is actually the recommended method on modern polymer renders. High pressure on K-Rend is one of the fastest ways to damage the finish. Do I need to be home while you work? + Not usually. As long as we have access to a tap and a bit of yard space we can crack on. We'll message before and after with photos. Can you clean render in Swansea and Cardiff? + Yes. We softwash across Swansea, Cardiff, Bridgend, Neath, Port Talbot and the surrounding areas — no long-distance surcharges for standard South Wales postcodes. What's the difference between softwashing and steam cleaning? + Softwashing uses chemistry to kill growth on porous surfaces like render. Steam cleaning uses heat and pressure to shift stubborn stains on hard surfaces like patios or block paving. Different tools, different jobs. Should I clean before painting my house? + Yes — every time. Painting over live algae just seals the growth under a new coat, and it bleeds through within months. Softwash first, paint after. ## Related services Most customers pair softwashing & render cleaning with one of these — or ask about our [full exterior reset](/). Not sure what you need? [Send us a couple of photos](/contact). [ ### Roof Cleaning Moss removed, roof restored — no return for 2–3 years. Learn more ](/services/roof-cleaning)[ ### Pressure Washing Driveways, patios & block paving restored. Learn more ](/services/pressure-washing-driveways-patios)[ ### Fascia & Soffit Cleaning White plastics brought back to bright white. Learn more ](/services/fascia-soffit-cleaning) ## Ready for a straight answer and a fair price? Send a couple of photos and a postcode — you'll have a written, no-obligation quote within 24 hours. No pushy follow-ups, no hidden extras. [Get My Free Quote](/contact) [07824 115602](tel:+447824115602) Owner-led · Fully insured · Serving Port Talbot, Swansea, Bridgend, Neath, Cardiff & across South Wales ![JPE Cleaning Services logo — roof and exterior cleaning, Cwmafan, South Wales](/__l5e/assets-v1/4e950781-f53d-4c8f-810d-275d3e7d58f0/jpe-logo.png) Owner-led exterior cleaning across South Wales. Roof cleaning, softwashing, pressure washing & gutter clearance — done properly, quoted within 24 hours. 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