How We Restored 65 Properties That Hadn’t Been Cleaned in Over a Decade
Case Study: Biofilm Treatment for Bromsgrove District Housing Trust
The Challenge
Bromsgrove District Housing Trust (BDHT) recently asked Alfresco to treat a build-up of biofilm on several properties.
Algae, moss, and other microorganisms are a major issue in UK housing. With sunlight, water, and carbon dioxide, algae thrive. The damp British climate creates perfect conditions for growth. Over time, a dark biofilm spreads across walls, creating an unsightly and worrying problem.
On Austin Road, BDHT’s rendered homes were nearly ten years old. Algae, moss, and mould had slowly covered the surfaces. The issue was more than cosmetic. Left untreated, microorganisms penetrate porous surfaces and spread through the brickwork. Once they multiply, they feed on minerals and moisture within the walls. At that stage, specialist treatment is the only solution.
Why Quick Fixes Don’t Work
Many people try to hide or blast away growth. Both approaches fail in the long term.
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Painting over render only covers the problem. Organic matter soon grows back. When it does, the surface looks even worse.
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Jet washing removes surface dirt but not the infestation beneath. Regrowth is rapid. Even worse, pressure washing often damages render, blowing it off the wall and letting water behind. This can cause frost damage and damp problems later.
Alfresco’s Solution
Alfresco offered BDHT a proven treatment. Instead of masking symptoms, we tackled the cause. Our system lasts four to six times longer than standard cleaning methods.
The team treated the biofilm safely and effectively across all affected properties. We kept disruption to residents to a minimum, while restoring the buildings.
The Results
Both BDHT and Alfresco were delighted with the outcome. The properties looked cleaner, brighter, and fully sanitised. The transformation created a far more welcoming environment for residents.
Why Biofilm Matters
Mould, mildew, algae, and fungi are not just unsightly. They also trigger respiratory problems, allergies, and asthma. Left unchecked, they can worsen health issues for residents. That’s why treating them quickly is essential.
Contact Alfresco
If you need specialist exterior cleaning, contact the award-winning Alfresco Group on 01235 754000. We deliver lasting results that protect both buildings and residents.
