
Moss and lichen roof treatment in Wellington
Growth treated, roofs washed, and the damage it has been hiding found and fixed.
Moss and lichen hold moisture against the roof surface. On metal roofs that damages the coating; on tile roofs it lifts edges and blocks valleys and spouting.
We treat the growth, wash the roof with methods suited to the material, and inspect the surface once it is clean, which is often when problems first become visible.
Where growth builds up
- Shaded slopes under trees
- South-facing roofs that stay damp
- Valleys and laps that hold debris
- Tile ridges and edges
BRANZ says regular washing is part of maintaining the durability of a painted metal roof. (BRANZ, Replacing a profiled metal roof)
How we treat a roof
We use treatments suited to the roof and the runoff, and avoid aggressive water-blasting that damages coatings and tiles. We do not water-blast any roof that may contain asbestos.
How the job works
Call or send the form
Tell us what you have noticed and where. We call back to book a time to look at the roof. If water is coming in now, call rather than using the form.
We inspect and photograph
We get on the roof (or use a drone or ladder where that is safer), photograph what matters, and check the underside where we can reach it.
Written quote with the photos
You get the photos, what we found, and a written price. If repair, restore and replace are all options, we price them side by side.
The work, then proof
We do the job, clean up, and send photos of the finished work so you can see what was done on a roof you cannot easily see yourself.
Moss and Lichen Treatment across the Wellington region
Upper Hutt valleys and bush-backed sections in Wellington City grow more moss than exposed coastal roofs.
We work right across Wellington City, and also offer moss and lichen treatment in Lower Hutt, moss and lichen treatment in Upper Hutt, moss and lichen treatment in Porirua, moss and lichen treatment in Kapiti Coast.
Moss and Lichen Treatment: common questions
Will moss come back?
Usually, over time, especially on shaded roofs. A maintenance plan keeps it under control.
Is water-blasting safe?
It can damage coatings and tiles and is unsafe on asbestos roofs. We choose the method to suit the roof.
Can treatment harm my garden or tank water?
We take care with runoff and talk to you first if you collect rainwater.
Got a leak or a roof question?
Call now, or send a few details and we will call you back with next steps.