Why slate responds so well
Slate is dense and hard-wearing, so on many roofs the staining sits on the surface rather than in the material. Once organic growth and pollution are lifted, the natural blue-grey, green or purple tones often reappear.
Slate roof cleaning
Slate roof cleaning for period and modern homes
Natural slate is one of the most rewarding roof coverings to clean. The original colour is usually still there — hidden under decades of algae, lichen and pollution.
Older slate needs a gentler approach
Victorian, Edwardian and older slate roofs can have delaminating slates, fragile nails or worn edges. These roofs are assessed carefully and cleaned with gentle, appropriate methods — never a blanket high-pressure wash.
What we look at first
Age, slate condition, pitch, access and the surrounding property all affect the method and the realistic result. If a slate roof shouldn't be cleaned, you'll be told rather than sold work.
Common questions
Your roof could look completely different.
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