Why outdoor surfaces turn green
Algae, moss and lichen grow where moisture sits on the surface. Shaded patios, north-facing paths, areas under trees and driveways with poor drainage are most likely to turn green. In Colchester and surrounding Essex villages, winter damp gives those surfaces months to build up before people start using the garden properly again.
The safety issue
A slippery patio or path can be a real hazard, especially near steps, side gates, bins, garden doors and elderly relatives' access routes. Pressure washing removes the surface growth that makes paving slick. It also reveals damaged slabs, loose edges or drainage issues that may need attention after the clean.
Pressure matters
Not every surface should be blasted at the same setting. Concrete, block paving, natural stone, tarmac and decking all need different care. Too much pressure can scar soft materials or disturb joints. The aim is to remove dirt and growth properly while protecting the surface. Block paving may need re-sanding after cleaning because the joints can lose loose sand during the wash.
When to book pressure washing
Spring is a popular time because it gets patios and driveways ready for the months when people use them most. Autumn can also make sense if leaves and damp are making surfaces unsafe. If the surface is already slippery, do not wait for it to look worse before dealing with it.
What to send for a quote
Photos should show the whole area, close-ups of the surface, drainage points, access to water and any delicate edges or nearby doors. A rough size or a few measurements help too. For patios and driveways, condition matters as much as square metres.
Need a local quote?
If you are in Colchester, Stanway, Tiptree, Braintree, Marks Tey, Coggeshall, Kelvedon or a nearby Essex village, send Dan a few photos and your postcode. For most window cleaning, gutter clearing and smaller exterior cleaning jobs, photos are enough to give a clear price and sensible options without a long site visit. Include front and back photos, any awkward access, and whether you want a one-off clean or regular maintenance. Clear photos also help spot useful add-ons before the visit.