
from £140/one off
from £35/session
from £90/session
from £55/session
Green streaks, black algae spots or a fuzzy layer of moss are all signs that a roof in Cheam could do with a professional clean. Beyond the appearance, this buildup can trap moisture against tiles and slates, which over time may lead to cracking or lifted edges.
The cost usually comes down to the size of the roof, how accessible it is, and whether the job needs a manual scrape and biocide treatment or a full steam clean.
Post the details of your job and roof cleaners covering Cheam and neighbouring Purley, South Croydon, Earlsfield and Chislehurst will send quotes, so you can compare prices and pick the right professional for your roof.
Bark's data suggests roof cleaning in Cheam typically costs £400 to £1,000 per job, roughly £8.50 to £14 per square metre. The total depends on roof size, ease of access, and whether it's a manual scrape and biocide treatment or a full steam clean.
Softwashing uses lower pressure with a cleaning solution to lift moss and algae, while pressure washing relies on force alone, which can be harsher on older tiles.
It depends on the height and pitch of your roof. Many jobs are done from a ladder or roof anchor points, but steeper or taller roofs may need scaffolding for safe access.
Every few years is typical, though roofs that stay damp or shaded for long periods may need more frequent attention.