
£295/session
from £120/one off
from £50/hour
Moss and algae build up gradually, often unnoticed until dark streaks or green patches spread across whole sections of tile. Left untreated, the growth holds moisture against the roof, which can shorten the life of the covering over time.
Most homes need a roof clean every three to five years, though a roof that's heavily shaded or close to overhanging trees may need attention more often since moss tends to establish faster in those spots.
Ask whether they'll use a softwash and biocide treatment or a full steam clean, and get the quote in writing. Comparing a few quotes on Bark makes it easier to see what's a fair price for your roof.
Spores spread on the wind and settle readily on any damp, shaded surface, which is why a preventive treatment after the main clean is often worth the extra cost. Roof cleaners working in Mold also cover Flint, Deeside, Hawarden and Buckley.
Bark's data suggests roof cleaning in Mold typically costs £400 to £1,000 per job, roughly £8.50 to £14 per square metre. The final figure depends on your roof's size and access, and on whether it's a manual scrape and biocide treatment or a full steam clean.