Roof Cleaning Treatment Auckland

Moss Mould and Lichen Growth

We guarantee effective roof cleaning results you can see the second we leave your home. Our cleaning treatment will add life to your roof by removing the lichen and moss.

Please feel to call us at – 0800 674 969


Moss, Mould & Lichen Treatments

North Shore House Wash uses a chemical 5% Benzalkonium Chloride with slow acting formulation, designed for the efficient killing of Moss, Mould & Lichen. When applied the chemical penetrates spores over a period of 3 to 4 hours. This penetration results in the gradual withering and dying of the Moss or Lichen, and provides long acting protection from re-growth. Time will vary depending on pitch of roof, roofing material and amount of rainfall. North Shore House Wash is among the best mould removal company in Auckland.

Treating Roofs from Moss, Mould & Lichens

Along with Roof-Washing which achieves instant results, North Shore House Wash offers a moss, mould & lichen roof treatment, which over time cleans your roof’s surface and prevents regrowth . Our roof treatments are environmentally friendly and biodegradable so the treatment won’t harm your gardens or cause damage to the environment.Lichen can eat away at the existing coating on the roof and lift off the paint, leaving lichen scarring on the roof surface. If left untreated can result in lichen can penetrate the roof surface which can cause costly repairs. Our mould cleaning method is safe, eco-friendly, and effective.

Taking extra care

When traditional roof cleaning methods can’t be implemented, where access proves difficult or too costly to use traditional pressure washing methods, a roof treatment service is required to ensure your roof surface stays in good condition.
We use a low-pressure technique to apply a roof treatment solution, which gradually and safely removes moss, mould & lichen from your roof. This way, we ensure that no damage is done to your roof’s surface.

A roof treatment is usually the best option when your roof has moss growth. This is where I apply a moss killing chemical to your roof which takes about 3 hours to penetrate the moss and its roots. The treatment is left on the roof and over a period of a few months, the moss will naturally come off the roof leaving it moss free for up to 2 years or sometimes longer. This is the best option for removal of moss as a roof clean will not remove the moss permanently.

Is It Safe To Collect Water From My Roof?

If you collect water for drinking notify us in the details section of your enquiry. All pipes running to your water tank system will be disconnected before the application. Some pipes are connected to the tank by welded joins or riveted joins. Any disconnection and re-connection procedure is at the sole expense of the property owner. Re-connection: Following the treatment, you MUST wait a minimum of 4 rainfalls at the property before reconnecting any pipes to the tank.

Roof Wash and Treatment Packages

North Shore House Wash offers a Roof Washing service as well as moss, lichen & mould roof treatment. Our roof washing service helps prevent damage to your roof while extending the life of the existing paint system keeping the surface of your roof in great condition.


Please Specify if Section is steep. Please notify us in regards to dogs/fish on the property.