Solar Panel Cleaning

Solar Panel Cleaning

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Restore your solar panels with HWNZ. Our cutting-edge formula is specially crafted to gently remove dirt, dust, and grime from your solar panels, ensuring optimal efficiency and energy production. Say goodbye to the hassle of manual cleaning and welcome the brilliance of HWNZ spotless solar panel maintenance.
We take great pride in our product and prioritise your satisfaction above all else. If you’re not completely satisfied with the results, we offer a money-back guarantee, no questions asked. Don’t wait any longer to unleash the full potential of your solar panels and maximize their performance. Experience the joy of sparkling clean solar panels like never before, harnessing the sun’s energy to power your life sustainably.

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What’s Included?

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

See The TEAM

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Benefits of
Solar Panel Cleaning

Regularly cleaning solar panels is essential for maintaining efficiency and ensuring optimal energy production. Here are the key benefits of solar panel cleaning:

  • Prevention of Permanent Staining: Stains from bird droppings or mineral deposits in hard water can become permanent if left untreated. Regular cleaning prevents the buildup of stains that can hinder the absorption of sunlight and reduce energy output.
  • Enhanced Efficiency: Solar panels free from dirt and debris operate more efficiently. Clean panels can convert a higher percentage of sunlight into electricity, maximising the overall performance of the solar system.
  • Prevention of Hot Spots: Dirt and debris on solar panels can create hot spots where certain panel areas become hotter than others. This can lead to reduced efficiency and potential long-term damage. Cleaning helps prevent the formation of hot spots.
  • Extended Lifespan of Solar Panels: Regular cleaning prevents the accumulation of dirt and debris that can contribute to the deterioration of solar panels over time. Maintaining a clean surface helps extend the lifespan of the panels.
  • Improved Return on Investment (ROI): A well-maintained solar panel system yields a better return on investment. Regular cleaning helps protect and enhance this investment by ensuring optimal performance and longevity.

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

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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


Professional cleaning ensures the optimal performance of your solar panels by removing dirt, dust, and other contaminants that can reduce efficiency. Clean panels can generate more energy and extend the lifespan of your solar system.

While light cleaning with water is possible, professional services use specialised equipment and solutions to effectively remove stubborn dirt and grime, ensuring a thorough cleaning without causing damage to the panels.

Yes, even a thin layer of dirt or dust can reduce the efficiency of solar panels. Regular cleaning ensures maximum sunlight absorption and energy production, helping you maximise your solar investment.

Absolutely. Professional solar panel cleaning uses gentle, non-abrasive methods and eco-friendly solutions that are safe for your panels. Our technicians are trained to clean without causing any damage to the glass, frames, or wiring.

Our cleaning methods are designed to tackle various stains, including bird droppings. Prompt removal of stains is essential to prevent potential damage and maintain the efficiency of your solar panels.

In most cases, there’s no need to turn off your solar system during cleaning. Our methods are designed to be safe for both the panels and the electrical components. However, if specific circumstances require shutdown, we’ll provide guidance accordingly.

The duration depends on factors like the size of your solar array and the extent of dirt. Most jobs can be completed within a few hours, allowing you to resume energy production promptly.