Render Cleaning in Redditch, Worcester & Birmingham
Algae, black streaking and green staining soft washed off silicone, monocouche, K-Rend, painted render, pebbledash and cladding using low-pressure application and biocide, backed by a 2-year guarantee.
10 years in the trade · 2-year guarantee on soft washed render · 100% recommended on Facebook (11 reviews)
10 years
In the exterior cleaning trade
2-year
Guarantee on soft washed render
£5,000,000
Public liability insurance
2 hours
Typical enquiry response
SoftWash UK
Member
Service overview
What Render Cleaning Actually Involves
Render cleaning is the soft washing of algae, black streaking, green staining and general grime off render surfaces using low-pressure application and a biocide treatment, rather than a pressure washer. Render is thinner and more brittle than brick or stone, and a jetwash can crack it, blow through hairline defects, or force water behind the surface, none of which is reversible.
James applies a biocide solution at low pressure, lets it dwell and work into the algae and staining, then rinses it off gently. The biocide keeps working after the visit, which is why staining continues to lift and pale over the following days and weeks rather than being fully gone on the day itself.
This approach works across silicone render, monocouche, K-Rend, traditional painted render, pebbledash and rendered cladding, with the dwell time and dilution adjusted to the finish. Every soft washed render job carries a 2-year guarantee against the treated staining and algae returning.
Who this is for
- Homeowners with green algae streaking or black staining across render elevations
- New-build owners on silicone or monocouche render showing early staining
- Anyone with painted render that has gone patchy or dirty-looking
- Sellers who need the front elevation to photograph cleanly before marketing
- Landlords and letting agents maintaining rendered properties between tenancies
- Commercial buildings and blocks with rendered elevations: RAMS on request
2-year guarantee on soft washed render.
Left untreated
What Happens If Render Is Left Untreated
Algae on render is not just discolouration. It holds moisture against the surface, and render's whole job is to keep water out of the wall behind it. Sustained damp against a render face, especially around cracks, joints or poorly finished edges, is how water eventually tracks through to the substrate, which is a far more expensive problem than a stained wall.
Black streaking, most often running down from window sills, cills and render trims, is usually a mix of algae and airborne dirt being funnelled onto the same strip of wall every time it rains. Left alone it darkens and spreads outward from the source rather than staying contained, and it becomes harder to shift the longer it sits.
Render is also unforgiving of the wrong cleaning method. A pressure washer used on render, even briefly, can crack the surface coat or drive water in behind it, turning a cosmetic clean into a repair job. Soft washing avoids that risk entirely, which is why it is the only method used here.
Mistakes that cost people money
- Using a pressure washer on render, which can crack the surface coat or force water behind it
- Scrubbing render by hand with stiff brushes, which can dull or damage the finish
- Cleaning without biocide, so algae and staining are back within a season
- Ignoring black streaking under sills and trims until it spreads across the whole elevation
- Using undiluted bleach, which can bleach or discolour coloured render finishes
- Booking anyone without soft washing experience or public liability cover to work at height on your walls
Our process
The Render Cleaning Process
01
Inspection & Quote
Render type, finish, condition and any existing cracking or trim damage are assessed from photos, a site visit, or Google Earth on larger properties, so the quote and method fit the actual wall. You get a firm, fixed price within 24 hours.
02
Preparation
Windows, doors, planting and paving below are protected, and any access equipment needed for upper storeys is set up safely before any solution goes near the wall.
03
Soft Wash Application
Biocide solution is applied at low pressure across the render, with dwell time allowed to work into algae, staining and lichen without ever using a jetwash lance on the surface.
04
Gentle Rinse
The render is rinsed down at low pressure once the biocide has dwelled, lifting the loosened staining without the impact that would risk cracking or wearing the finish coat.
05
Sign-Off & Guarantee
The elevation is walked with you once dry, and the job is covered by our 2-year guarantee against soft washed staining and algae returning, plus a free re-clean if you are not 100% happy.
The benefits
What You Get From A Properly Soft Washed Render
A method that will not crack your render
Low-pressure soft washing removes staining without the impact risk a jetwash brings to a brittle render surface.
Results that keep improving
The biocide keeps working after the visit, so staining continues to pale and lift over the following weeks.
Two years of cover, in writing
Every soft washed render job carries a 2-year guarantee against the treated algae and staining returning.
The right approach for the finish
Silicone, monocouche, K-Rend, painted render, pebbledash and cladding are all handled with the dwell time and dilution adjusted to suit.
Fully insured access at height
£5,000,000 public liability insurance and Working at Height and Rooftop Awareness certification cover every visit, whatever the storey count.
An elevation that photographs and sells better
Render is usually the single largest visible surface on a property, cleaning it changes how the whole frontage reads from the kerb.
In detail
Render Finishes & Situations We Cover
Different render finishes hold staining differently and tolerate different dwell times. Here is how we approach the render we see most across Redditch, Alcester, Evesham, Bromsgrove, Droitwich, Worcester, Solihull and Birmingham.
Silicone render
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Common on newer builds, silicone render sheds water well but still picks up algae streaking, particularly under sills and around trims. Soft washed with biocide dwell time adjusted to the smooth surface, lifting streaking without dulling the finish.
Monocouche render
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A through-coloured, textured render that shows algae and green staining clearly against its usually lighter colour. Responds well to soft washing, with results continuing to improve over the days after the visit as the biocide finishes working.
K-Rend and similar silicone-based systems
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K-Rend and comparable proprietary systems are cleaned the same soft-wash way, at low pressure with biocide dwell, protecting the manufacturer's warranty on the coating by avoiding any pressure-washing on the surface.
Traditional painted render
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Older painted render is more porous and can hold algae in the paint texture itself. Soft washed carefully, with attention to any areas where the paint is already flaking, which are flagged rather than aggressively cleaned.
Pebbledash
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The uneven, textured surface of pebbledash traps dirt and algae in the recesses between stones, which a jetwash cannot reach without dislodging pebbles. Biocide dwell time does the work here instead, breaking down growth in the texture before a gentle rinse.
Rendered cladding and commercial elevations
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Larger rendered elevations, cladding panels and commercial buildings are quoted from a site visit or Google Earth, with access planned around IPAF and PASMA-carded equipment where height demands it. RAMS are issued on request, and letting agents and property managers are welcome.
Questions
Render Cleaning: Your Questions Answered
Anything not covered here, call James on 07511 580040 , the enquiry line is 24/7 enquiry line.
How much does render cleaning cost in Redditch?
Every property is priced individually based on render type, elevation size, staining and access. Send photos or a postcode and you will have a response within 2 hours and a firm, fixed quote within 24. Larger or taller properties are measured with a site visit or Google Earth before quoting.
How long does render cleaning take?
Most domestic properties are completed in a single day, including preparation, application, dwell time and rinsing. Larger elevations or those needing powered access may take longer; you will be told before booking.
Do you use a pressure washer on render?
No. Render is cleaned using low-pressure soft washing with biocide, never a jetwash lance. Pressure washing render risks cracking the surface coat or forcing water behind it, which is not a risk worth taking on your walls.
What does the 2-year guarantee cover?
Soft washed render cleaning carries a 2-year guarantee against the treated algae and staining returning. On top of that, our standard policy applies across all work: if you are not 100% happy with the result, we come back and put it right free of charge.
How long will my render stay clean?
The biocide keeps working for weeks after the visit and holds regrowth back well beyond that, which is why the work is covered by a 2-year guarantee. Shaded, north-facing elevations or those under tree cover tend to green up faster than open, sunny walls.
Will soft washing damage my render finish or void a manufacturer's warranty?
Soft washing at low pressure is the method proprietary render systems like K-Rend recommend for cleaning, precisely because pressure washing is what risks the warranty and the finish. Any existing cracking or damage is flagged to you before work starts.
Can you clean render on a two or three-storey house?
Yes. Access is planned with the right equipment for the height involved, and every job runs under Working at Height and Rooftop Awareness certification, IPAF and PASMA cards, and £5,000,000 public liability insurance.
Do you clean pebbledash and painted render, or just modern finishes?
Yes to both, pebbledash, traditional painted render, silicone, monocouche and K-Rend are all handled, with dwell time and dilution adjusted to suit the particular finish.
How quickly can you come out?
Enquiries are answered within 2 hours and quotes issued within 24 hours. Our enquiry line is open 24/7: call, message or use the form and James will come back to you personally.
Do you clean render outside Redditch?
Yes: Redditch, Alcester, Evesham, Bromsgrove, Droitwich, Worcester, Solihull and Birmingham are all covered, domestic and commercial. If you are just outside that list, ask; it is usually still workable.
Where we work
Render Cleaning Across Redditch & The West Midlands
- Render Cleaning in Redditch
- Render Cleaning in Alcester
- Render Cleaning in Evesham
- Render Cleaning in Bromsgrove
- Render Cleaning in Droitwich
- Render Cleaning in Worcester
- Render Cleaning in Solihull
- Render Cleaning in Birmingham
Based in Redditch, covering Worcestershire and the West Midlands. See every area we cover for exterior cleaning.
Related services
Often Booked Together
Roof Cleaning
Moss removed by scraping or low-pressure washing, then a biocide treatment. Backed by a 2-year moss-return guarantee.
Pressure Washing
Driveways, paths and hard surfaces brought back to their original colour with controlled, surface-safe pressure washing.
Window Cleaning
Pure-water reach and wash up to 30 feet for a streak-free finish. Regular customers receive up to 25% off other services.
Request an estimate
Get Your Render Looking Clean Again: Guaranteed
Send a photo or your postcode and you will have a reply within 2 hours and a firm quote within 24. Every soft washed render job is covered by our 2-year guarantee, £5,000,000 public liability insurance, and a free re-clean if you are not 100% happy.
- £5,000,000 public liability insurance
- Free re-clean if you are not 100% happy
- Reply within 2 hours, firm quote within 24