Roof Cleaning and Moss Removal

Moss builds up on roofs facing north or shaded by trees, especially on concrete tiles which have a slightly rougher surface than clay or slate. It might look harmless, but it holds moisture against the tile surface, which speeds up weathering, and moss debris regularly washes into gutters, blocking them and causing overflow.

We clear moss and algae by hand and with soft brushes, rather than using a pressure washer. High pressure water can force its way under tiles, strip the protective granules off some concrete tiles and push water into the roof structure, which causes more problems than the moss ever did. It's a slower method but a much safer one for the roof.

While we're up there clearing moss, we check the condition of the tiles or slates underneath, since heavy moss growth can hide cracked tiles, failed pointing or slipped slates that weren't visible from the ground. If we find anything, we'll point it out and quote separately rather than assuming you want extra work done.

Once the roof slopes are cleared, we clean out the gutters, since moss and debris washed down during the clean will otherwise sit there and cause a blockage. This is a normal part of the job for us, not an optional extra, because leaving gutters full defeats the point of cleaning the roof.

Moss growth is common across Coventry, Solihull and Kenilworth on roofs with mature trees nearby or a shaded north facing slope, and some properties will need cleaning again after a few years depending on the location. We won't recommend a treatment or repeat visit unless the roof genuinely needs it.

Cost depends on the size of the roof, how much moss has built up, and access. We'll always inspect first and give a free written quote, and we'll tell you honestly if a roof has more moss than is worth removing versus other work being more of a priority.