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If you’ve noticed green algae spreading across your patio in Guildford, dark staining creeping over render in Woking, or black spots returning again and again on stonework in Epsom, you’re not alone.
Outdoor surfaces across Surrey are constantly exposed to damp conditions, shade, and organic growth, all of which gradually leave patios, walls, and driveways looking tired, slippery, and difficult to maintain.
Traditional pressure washing can sometimes improve the appearance temporarily, but it often doesn’t deal with the root cause of the problem. In many cases, it can even make things worse by damaging delicate surfaces or accelerating regrowth. That’s where soft washing offers a smarter, longer-lasting solution.
Soft washing is a specialist cleaning method designed to safely remove algae, moss, lichen, and other organic staining without relying on high pressure.
Instead of blasting the surface, we apply carefully developed treatments that break down organic staining at source. This allows us to clean surfaces more thoroughly, while protecting the integrity of the material underneath.
Soft washing is a low-pressure exterior cleaning technique that uses targeted, biodegradable treatments to eliminate organic staining and restore surfaces. Rather than using force, it works by treating the cause of the staining, not just the visible symptoms.
Once applied, the solution penetrates deep into the pores of the surface, removing algae, lichen spores, and discolouration. In many cases, the results continue to improve over time as weathering naturally washes away the remaining residue.
This approach is particularly effective for more delicate or porous materials commonly found across Surrey, including:
Because soft washing avoids aggressive pressure, it significantly reduces the risk of etching, surface damage, or dislodging pointing — all common issues with standard jet washing.
Surrey’s environment creates ideal conditions for organic staining to thrive. Many properties are surrounded by trees, hedges, and shaded garden areas, which retain moisture and limit direct sunlight. Combined with the region’s relatively mild and damp climate, this creates the perfect breeding ground for algae, moss, and black lichen.
In towns like Farnham and Dorking, where properties often feature older stonework, these issues can become particularly stubborn. Meanwhile, in more suburban areas such as Woking and Epsom, modern patios and render can quickly become discoloured by green algae and atmospheric staining.
Soft washing is especially effective in these conditions because it doesn’t just clean the surface — it actively targets the biological growth responsible for the problem. By removing spores at the source, it helps slow down regrowth and keeps surfaces cleaner for longer.
Across Surrey, we regularly see the same issues affecting outdoor spaces, regardless of property type. These include:
One of the most persistent problems, particularly on sandstone and other porous materials. These small black marks embed themselves into the surface and are extremely difficult to remove without specialist treatment.
Often found in shaded or north-facing areas, algae creates a slippery film that not only looks unsightly but can also become a safety hazard.
Modern rendered homes in areas like Guildford and Woking are especially prone to green streaking and patchy staining caused by moisture and airborne contaminants.
Driveways, pathways, and decking can quickly become overrun, particularly during wetter months. This not only affects appearance but can also lead to long-term surface deterioration if left untreated.
Soft washing is designed to tackle all of these issues in a controlled, effective way, restoring the appearance of your outdoor surfaces while helping to prevent staining from returning too quickly.
While soft washing is ideal for delicate surfaces, it’s also a highly versatile solution that can be used across a wide range of outdoor areas. Whether you’re dealing with stubborn black spot on a patio, green staining on render, or moss-covered pathways, our specialist cleaning services are designed to restore surfaces safely and effectively.
Across Surrey, from residential gardens in Guildford to commercial properties in Woking and Epsom, we provide tailored soft washing services that deliver long-lasting results without the risks associated with high-pressure cleaning.
Patios are one of the most common areas affected by organic staining. Using our specialist treatments, we target black lichen, algae, and ingrained dirt at the root. This is particularly effective on sandstone, limestone, and other porous materials commonly found across Surrey. The result is a cleaner, brighter patio without the risk of surface damage.
Render can quickly become discoloured by algae and environmental staining, especially on shaded elevations. Soft washing gently restores the original appearance without streaking or patchiness, making it ideal for modern homes throughout areas like Woking, Epsom, and Farnham.
Moss and algae on roof tiles not only affect the appearance of your property but can also lead to long-term issues if left untreated. Our soft washing process removes organic growth safely, without the need for aggressive pressure that could damage tiles or dislodge materials.
Both timber and composite decking can become slippery due to algae build-up. Soft washing cleans and treats the surface while preserving its structure, helping to restore both appearance and safety.
From block paving to natural stone paths, soft washing helps remove moss, algae, and surface staining. This treatment is combined with gentle pressure washing where appropriate to achieve a more complete finish while still protecting the surface.
We also work with businesses across Surrey, including schools, pubs, and retail premises. Clean, well-maintained outdoor areas create a better first impression and reduce slip hazards for staff and visitors alike.
We start by assessing the surface type, level of contamination, and overall condition. This allows us to choose the most appropriate treatment and approach.
Surrounding areas such as plants, furniture, and fixtures are carefully protected before any treatment is applied.
Our specialist soft washing solutions are applied evenly across the surface. These treatments begin breaking down organic staining, cutting through dirt and grime.
Unlike pressure washing, soft washing relies on allowing the treatment time to work. This ensures deeper, longer-lasting results.
Where appropriate, we may carry out a light rinse or complementary clean to enhance the immediate appearance.
We can apply a follow-up treatment to inhibit regrowth of algae and lichen, helping keep surfaces cleaner for longer — often up to 12 months or more.
We focus on treating and removing organic staining properly — not just washing it away. Our knowledge of different stone types and surfaces ensures the right approach every time.
Our soft washing process avoids the risks associated with aggressive jet washing, protecting your patio, render, and other surfaces from damage.
By targeting the root cause of staining, we help slow down regrowth and keep your outdoor areas looking cleaner for longer.
All of our solutions are biodegradable, acid-free, and safe for pets once dry, giving you peace of mind.
We regularly work throughout Guildford, Woking, Epsom, Farnham, Dorking, and surrounding areas, delivering reliable, high-quality results for homeowners and businesses alike.
If your patio, render, or outdoor surfaces are looking tired or affected by algae and staining, soft washing offers a safer, more effective solution than traditional pressure washing.
Call 0800 500 3032 / 01252 702123 or email info@pbsr.co.uk today to request your free, no-obligation quote and find out how we can transform your outdoor space in Surrey.
Get in touch today and we’ll reply promptly with a free patio cleaning quote – no pressure, just great service and results.
