Your roof faces constant exposure to harsh weather conditions, including sun, rain, wind, and airborne pollutants. Over time, this leads to the build-up of moss, lichen, mould, and dirt that can stain surfaces and damage roofing materials. If left untreated, this build-up shortens the life of your roof and impacts the overall appearance of your home.
We offer gentle but powerful roof treatments that tackle moss, mould, and lichen at the root. Our slow-acting, eco-safe solution contains a professional-grade formula. It soaks into the surface, penetrates deep into the spores, and begins breaking down growth within hours.
Unlike high-pressure washing, this method works gradually with the help of natural rainfall, clearing away moss and lichen over the following weeks. One treatment can protect your roof for up to two years or more, making it a smart and affordable way to maintain your home and prevent regrowth.
Allens Group offers comprehensive roof cleaning Whangarei services tailored to suit your roofing material, condition, and local environment.
Our services include:
High-pressure or soft-wash roof cleaning
Manual and chemical roof moss removal
Application of eco-safe roof anti moss treatment
Mould and lichen removal
Gutter and downpipe flushing (optional)
No matter if your roof is covered or just starting to show early signs of algae or moss, we can assess and treat it safely and efficiently. Protect your roof before the next rainy season hits.
Different roofing materials require different approaches. Our experienced team knows how to treat moss, mould, and lichen on all common surfaces:
Coloured steel and long-run iron
Concrete tile and clay tile
Decramastic and pressed metal
Painted and unpainted roofs
Membrane and flat roofing
We use biodegradable treatment solutions that kill growth at the root level, along with low-pressure washing methods that clean without compromising paint, coatings, or structural elements. Preserve your roof’s value and performance with a quick call today.
Keep your roof in top shape with our expert roof washing services. We take care of the dirt, moss, and debris so you can enjoy a cleaner, safer, and longer-lasting roof.
We clear out gutters and remove debris from roof tiles, so rainwater flows freely. This helps prevent overflow, leaks, and damage to your guttering system.
Our regular roof washing service helps you catch early signs of wear and tear. We stop small issues from turning into costly structural damage.
If you notice green patches, black streaks, or white crusty lichen
If water is pooling or gutters are frequently blocked
Before repainting or applying a roof coating
Before winter to prevent moss damage during wet months
After summer to clean off dust, debris, and UV residue
Book your roof cleaning in Whangarei today and protect your home from the elements.
Protect your home, improve appearance, and extend the life of your roof with Allens Group’s professional roof cleaning Whangarei services. Our moss, mould, and lichen treatments deliver visible results and long-term protection backed by expert care.
Contact us today to schedule your service or request a free quote.
Yes, they’re eco-friendly and safe when applied correctly. They won’t harm your pets, plants, or family.
We do. If you’re not happy with the results, we’ll come back and sort it out.
It depends on how bad the build-up is. Light growth clears up in days, while heavier contamination may take 2-3 months as the rain washes it away.
They extend your roof’s life, prevent damage, and keep your home looking clean. Plus, the treatment is non-acidic, non-caustic, and bleach-free.
Absolutely. If your deck is old or heavily blackened, we recommend a soft wash and restoration treatment first. After that, it’s easy to maintain with light brushing and a follow-up treatment every 6-12 months.