Why Homes in Guildford and Surrey Are Prone to Algae
Why Homes in Guildford and Surrey Are Prone to Algae (And What You Can Do About It)
If you’ve noticed green stains spreading across your render, brickwork, or patio, you’re not alone. Algae is a common problem for homeowners in Guildford, Woking, and across Surrey. Thanks to the local climate and environmental conditions, exterior surfaces in our region are especially vulnerable to algae, moss, and lichen.
At Aqua Pro Exteriors, based in Surrey, we deal with these issues every day. Here’s why algae is so widespread in our area—and how professional soft washing can safely and effectively resolve the problem.
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Why Does Algae Grow on Homes in Guildford and Surrey?
Algae thrives in damp, shaded environments. With Surrey’s mild, wet weather, and large number of tree-lined streets and north-facing properties, it’s the perfect breeding ground for green staining. Algae spores are airborne, meaning they can settle on any exterior surface and begin to grow as soon as conditions allow.
Key factors in Guildford and Surrey that promote algae growth:
• Damp weather and seasonal rainfall
• North- or west-facing walls with limited sun exposure
• Overhanging trees and hedges that trap moisture
• Porous surfaces like render, sandstone, and block paving
• Lack of regular exterior maintenance
We often see this kind of growth on homes throughout Godalming, Farnham, Woking, and villages in the Surrey Hills.
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Where Algae Typically Grows on Surrey Homes
In our soft washing work around Guildford and the surrounding areas, we regularly treat:
• Rendered walls (such as K-rend, Monocouche, and silicone finishes)
• Block-paved driveways and slabbed patios
• Roof tiles, particularly on shaded sides of the home
• Brick garden walls and retaining structures
• Concrete steps and pathways
What begins as a light green tinge can turn into heavy, dark staining that not only looks bad, but also leads to longer-term issues.
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The Risks of Ignoring Algae Growth
Algae isn’t just a cosmetic issue. If left untreated, it can:
• Reduce the kerb appeal of your home, especially important if you’re selling in competitive Guildford or Surrey markets
• Break down surface coatings and finishes over time
• Create dangerously slippery paths and driveways
• Encourage the growth of moss and lichen
• Make future cleaning more difficult and expensive
The longer it’s left untreated, the deeper the staining becomes—often requiring more aggressive cleaning or restoration.
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Soft Washing: The Safe Solution for Algae Removal in Guildford and Surrey
At Aqua Pro Exteriors, we specialise in soft washing in Guildford and across Surrey. This method uses low-pressure equipment combined with powerful biocide treatments to clean surfaces gently, effectively, and safely.
Why soft washing is ideal for Surrey homes:
• Removes algae, moss, lichen, and mould at the root
• Is gentle on render, cladding, brick, and stone
• Uses biodegradable biocides that are safe and long-lasting
• Prevents regrowth for months—sometimes up to a year or more
• Restores original colour and appearance to your property
Our tailored approach ensures we treat each surface with the right solution and method, so your home looks its best—without damage or risk.
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Keeping Algae Away in the Long Term
After your home has been professionally soft-washed, there are steps you can take to prevent algae from returning:
• Trim back trees and hedges to allow sunlight and airflow
• Remove debris like fallen leaves from patios and paths
• Schedule gutter cleaning to avoid water overflow
• Apply biocide top-up treatments every 12 to 18 months
• Maintain regular surface inspections—especially after winter
We offer ongoing maintenance packages across Guildford, Woking, and wider Surrey, to help you keep your property in top condition all year round.
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Book a Professional Algae Removal Service in Guildford or Surrey
If your property is suffering from green stains, dark streaks, or algae-covered paving, don’t let it get worse. We provide professional, affordable algae removal and soft washing services for homeowners across Guildford, Woking, Godalming, and all surrounding areas of Surrey.
Aqua Pro Exteriors is fully insured, experienced, and trusted by homeowners throughout the region.
Call: 07830384855
or reach out to us on our Contact Form
