01/08/2026
π How do we clean a roof properly?
One of the questions we're asked most often is, "What's the best way to clean a roof?"
The truth is that every roof is different, which is why we carefully assess each one before deciding on the most suitable cleaning method.
At Exterior Cleaning Services NI, we mainly use two professional methods:
β Roof scraping and biocide treatment
β Low-pressure roof washing and biocide treatment
Once the roof has been cleaned, we apply a professional biocide treatment to target any remaining moss, algae and lichen while helping to slow future regrowth.
Every roof clean also includes the clearing of gutters and the cleaning of fascias and soffits, leaving your property looking its very best.
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Fully insured
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Residential and commercial work
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Free quotations
πCovering all of Northern Ireland
If your roof is looking tired, send us a message and we'll be happy to help.