Roof Washing

Professional Roof Soft Washing

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Roof Soft Washing is the specified cleaning method for most roof types. In a perfect world, roof washing should be done annually to prevent mould growth and extend the life of your roof surfaces to their maximum. When done regularly roof washing can be carried out both less pressure and with less chemical. If left for mould to grow, a true soft wash becomes less effective and more pressure and chemical is required. If you’re preparing a roof to paint, we can use a combination of 4000psi water blasting and pre paint soft wash treatment to remove loose oxidised paint and any organic matter so new paint adheres well.

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What’s Included?

HWNZ offer full service exterior cleaning. So, if you require more than just a roof wash, we can discuss other areas such as house wash, gutters and surrounding property at your request.

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The Importance of
Roof Washing

Do you see moss or lichen on your roof? How about black streaks? Do dirt and grime buildup ruin your roof’s appearance? If you’re experiencing any of these problems, it all only means one thing—you need to have your roof chemical washed as soon as possible. Without proper roof maintenance, soon, cracks will form on the surface, more leaks will occur and your roof will not function at its best. This is where House Wash New Zealand Limited comes in.

  • Enhances Roof Longevity: Regular roof washing helps extend the lifespan of roofing materials by preventing the buildup of organic matter and debris that can contribute to deterioration over time.
  • Prevents Stains and Discoloration: Roof washing removes stains caused by algae and other contaminants, restoring the original colour and appearance of your roof. This enhances the overall aesthetics of your home.
  • Avoids Potential Health Risks: Algae, mould, and other contaminants on the roof can contribute to poor indoor air quality and potential health risks. Roof washing helps maintain a healthier living environment.
  • Prevents Algae, Moss, and Lichen Growth: Roof washing removes and prevents the growth of algae, moss, lichen, and other organic contaminants. These growths can deteriorate roofing materials and compromise the structural integrity of the roof.
  • Saves on Future Repairs: Regular roof washing is a proactive measure that can help identify early signs of damage or issues, allowing for timely repairs and preventing the need for more extensive and costly fixes in the future.

Officially #1 Rated
in Auckland

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Our Reviews

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★ ★ ★ ★ ★
Very professional from start to finish!
★ ★ ★ ★ ★
He and his team use professional equiment.
★ ★ ★ ★ ★
I trust these guys completely and will only use them going forward
★ ★ ★ ★ ★
Very thorough work and great communication throughout
★ ★ ★ ★ ★
Will I use them again! ABSOLUTELY!!
★ ★ ★ ★ ★
Absolutely blown away by Mangala's quick turn around time, efficiency, and professionalism
★ ★ ★ ★ ★
Very quick in his response to our enquiry, friendly and knowledgeable
★ ★ ★ ★ ★
I have to say that Mangala is very professional

Our Happy Clients

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Trusted to Wash
New Zealand’s Best

Why is HWNZ is the preferred option for exclusive property in NZ? We have team leaders on every job site. We pride ourself in service, safety and exceptionally clean results. We are officially the highest rated exterior operator in Auckland with over 200 5 Star Google Reviews.

Come Home to

For more than 6 years, HWNZ has earned a name for quality and customer service. The property owners we serve rely on us for detail-oriented, consistent cleaning services, every single time we wash their homes and businesses.

Here to Serve

With the right team and the right experience, our team is fully equiped to serve you with the best service and the best results.

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The Right Equipment
The Right Team

Call us now to discuss your requirements and receive a no obligation, free quote.

The Right Tools
for the Job

Exterior cleaning requires not only care and attention to detail, but the right tools for each specific washing task.

HWNZ invest in the right equipment to run any exterior job efficiently and safely. Our fleet of hybrid vehicles keep our carbon footprint as low as possible and the correct size machines power through work safely and thoroughly.

Our pure water systems leave you with a better, spot free result on any windows that need cleaning and our extension equipment get to all those hard to reach spots effectively.

We invest in the right equipment so you don’t have to worry about the pain of maintenance and equipment that doesn’t go to good use. Call the HWNZ team for a free Quote

Our Equipment

Building washing vans - House Wash New Zealand
Honda motor - House Wash New Zealand
House washing van - House Wash New Zealand
Building washing vans - House Wash New Zealand
Building washing equipment - House Wash New Zealand
House washing vans - House Wash New Zealand
Pressure meter
Building washing vans - House Wash New Zealand
Building washing equipment - House Wash New Zealand
House washing vans - House Wash New Zealand
Pressure meter


Regular roof washing can help to remove harmful elements such as algae, moss, and debris that can cause damage to your roof. It can also improve the overall appearance of your house and increase its value.

We use a combination of soft washing, environmentally-friendly cleaning solutions, and specialised equipment to wash roofs effectively. Our methods are safe for all roofing materials and will not damage your roof.

We take great care to protect your landscaping and other exterior features of your house during the roof washing process. We use special equipment and techniques to ensure that your property is not damaged during the service.

We recommend removing any outdoor furniture or other items that may be in the way of the cleaning process. We also recommend closing all windows and doors to prevent water from entering your house during the washing process.

Yes, roof washing can remove moss, algae, and other organic matter from your roof. Our technicians use specialised cleaning solutions to kill and remove these organisms, leaving your roof clean and free of stains.

The time it takes to wash a roof depends on the size of the roof and the level of cleaning required. However, most roofs can be cleaned within a few hours.

No, you do not need to be at the house during the roof washing process. Our technicians are trained professionals and will care for your roof while you are away.