Bio-Wash Treatment Across the North West

Post-clean biocidal treatment that extends cleaning results by killing algae, moss, and lichen spores at the root for 6–12 months. Our North West service area covers a wide range of property types — from Victorian terraces in Liverpool and St Helens to modern executive estates in Warrington and Lymm — each requiring the specialist knowledge and professional equipment that R.R.M has developed over eight years of continuous operation.

The North West climate creates specific challenges for exterior surfaces: persistent Atlantic rainfall, elevated humidity across the Mersey basin, and biological growth that colonises unprotected render, tiles, and paving within a single season. Our bio-wash treatment service addresses these conditions using biocide applicator and industry-approved methods, delivering results that last rather than simply masking surface contamination. Bio-wash works year-round; a dry period of 4–6 hours after application maximises absorption.