House Wash NZ · Auckland & Northland
Roof washing & moss treatments in Auckland & Northland
Moss along the ridgeline, lichen across the tiles or dark marks on the metal—once you spot it, it is hard to ignore.
We look at the roof material, its condition and the growth you want dealt with, then discuss a suitable roof wash or treatment. You’ll know what the job includes and when to expect a visible change.
Wash and treatment options explained
Roof material and access considered
Auckland, Whangārei & Northland enquiries
Two different ways to tackle the build-up
Roof washing or roof treatment?
The right choice depends on what is growing on the roof, how soon you want it to look cleaner and whether the surface is suitable for washing.
Start with the roof itself
We check the surface before recommending a method
Long-run metal, concrete tile and pressed metal tile roofs do not all call for the same approach. Coating condition, fragile areas, roof pitch and access matter as much as the visible growth.
Tell us about leaks, cracked tiles, rust, solar panels or a roof that feeds a rainwater tank. Cleaning can improve the surface, but it cannot repair the roof. If it needs roofing work first, that should be addressed separately.
Send us your roof photos for a quoteUseful details to send
Help us see what is up there
Your address, a photo of the full roof and close-up photos of the problem areas help us understand the job. Let us know the roof type if you know it and whether you collect rainwater from it.
We’ll discuss access and the treatment or washing scope before giving you a price.
From enquiry to clean roof
A clear plan before anyone starts
We’ll explain what can be done now, what takes time and what is outside the roof cleaning quote.
Show us the roof
Send photos and your address. Mention moss, lichen, staining, roof material, a water tank and any known damage.
Agree on the method
We assess the surface and access, then explain the washing or treatment option and what result to expect.
Prepare for the visit
We confirm the work, suitable weather and any steps needed for rainwater collection or surrounding areas.
Looking at the whole roofline?
Ask about gutter cleaning at the same time
Moss, leaves and debris can also collect in gutters. Clearing the inside of gutters and downpipes is a separate job from washing or treating the roof, so tell us if you want both included in the quote.
If the house exterior needs a wash as well, we can discuss the areas together and set out each service clearly.
View all exterior servicesBefore you book
Roof washing and treatment questions
What is the difference between roof washing and roof treatment?
Washing aims to clean suitable surfaces more immediately. A moss and lichen treatment works gradually as the treated growth breaks down and weather carries it away. The roof material and condition help determine which approach is appropriate.
How long does a roof treatment take to work?
Do not expect a same-day transformation. Growth may change colour first, then clear gradually over weeks or months. Weather, the amount of growth and roof type all affect the timing. We’ll explain what to expect for your roof when quoting.
Can a roof wash damage metal or roof tiles?
The wrong method or pressure can affect a roof covering or its coating. We consider the material, condition and any manufacturer guidance before recommending a wash. If the roof is fragile or damaged, it may need a different approach or a roofer’s assessment first.
Can you treat a roof that supplies a rainwater tank?
Tell us before booking if your roof feeds a rainwater tank. The water collection system and any product instructions must be considered before a treatment or wash. We’ll discuss the necessary precautions for the proposed work rather than assume the tank can stay connected.
Do you clean gutters when you clean the roof?
Gutter clearing is separate from a roof wash or treatment. Ask for it when requesting your quote and we can explain what the combined work would include.
How much does roof cleaning cost?
The roof size, pitch, material, access, condition and whether it needs washing or treatment all affect the quote. Send us your address and roof photos so we can discuss the right scope and price.
Do you provide roof washing in Auckland and Northland?
House Wash NZ takes roof washing and treatment enquiries across Auckland and Northland, including Whangārei. Send us your address so we can confirm availability and assess the roof.
OUR SERVICES
Exterior cleaning services
From the roofline to the driveway, choose the areas that need attention.
House Washing
Green walls, dusty cladding and cobwebs under the eaves can make a well-kept home look tired. Our house washing clears the build-up with the exterior surface in mind.
Roof Washing & Treatments
Moss, mould and lichen can spread across a roof before you notice them from the ground. We assess the roof before discussing whether a wash or a gradual treatment is suitable.
Gutter & Spouting Cleaning
Overflowing gutters often start with leaves and debris you cannot see. We clear accessible sections and look at the areas where rainwater has been spilling over.
Commercial Building Wash
Shopfronts, offices and larger buildings collect grime where customers and staff see it every day. We plan each building wash around the surfaces, access and activity on site.
Driveway & Concrete Cleaning
Dirt, algae and traffic marks can dull the approach to a property. We clean suitable concrete driveways, paths and outdoor surfaces using a method that suits their condition.
Deck & Fence Cleaning
A shaded deck or green fence can make the whole outdoor area feel neglected. We clean decks and fences with the material and existing finish in mind.