Solar panel cleaning across Central Otago
Dust, pollen and bird droppings build up on solar panels over time. We clean suitable residential and commercial panels with a non-abrasive pure-water system, adjusting the work to the roof and array.
Is solar panel cleaning right for your property?
We work with homeowners and businesses across Central Otago, Southern Lakes and the Maniototo. Before cleaning, we check access, panel condition and the layout of the system.
Tell us what you needCommon reasons to arrange this service
- Dust and pollen on the panels
- Bird droppings and local environmental build-up
- Seasonal solar-system maintenance
- Panels that have not been cleaned for some time
Suitable properties and situations
- Residential rooftop arrays
- Suitable commercial solar installations
- Panels affected by dust or bird droppings
- Seasonal solar-panel maintenance

What our solar panel cleaning service includes
Good to know: Cleaning does not include electrical testing or repairs. Roof pitch, height, weather and safe access may limit what we can clean.
A gentle clean for solar panels
Our commercial-grade pure-water cleaning system removes dust and environmental build-up without abrasive treatment. The method is chosen to suit the panel surface and the access available. Electrical testing and repairs are not part of the clean.
- Dust and pollen
- Bird droppings and environmental debris
- Residential and commercial arrays with suitable access

More about solar panel cleaning
When should panels be cleaned?
We recommend cleaning twice a year: at the end of autumn to maximise power input over the lower-sun winter months, and at the end of spring to remove pollen and dust.
Dirty panels can cause you to lose up to 30% efficiency, depending on the situation. Regular cleaning helps keep the panels clear and working at their best.
What to expect
How we carry out the work, step by step.
Check access
Assess roof access, array layout and visible panel condition.
Prepare
Set up the commercial-grade pure-water system and tools suited to the job.
Clean
Remove dust, pollen and bird droppings from accessible panels without abrasive treatment.
Check
Check accessible panels for remaining build-up. Cleaning twice a year, at the end of autumn and spring, is a useful guide.
What dirt can cost your solar panels
Dust, pollen, bird droppings and other build-up block light from reaching solar panels and reduce energy output.
Solar panel cleaning throughout the region
Our Cromwell-based team cleans suitable residential and commercial solar panels across Central Otago, Southern Lakes and the Maniototo, including Alexandra and Wanaka. Roof access, panel layout and weather affect how we plan the job, so include photos when you enquire.
View our service areasSolar Panel Cleaning questions
Why clean solar panels?
Dust, pollen, bird droppings and grime block light from reaching the panels and reduce output. Cleaning removes that build-up.
How often should panels be cleaned?
We recommend twice a year: at the end of autumn before the lower-sun winter months, and at the end of spring to remove pollen and dust.
Will cleaning improve solar output?
Removing build-up helps panels receive more light and maintain their performance. Dirty panels can lose up to 30% efficiency, depending on the situation.
Can you clean every roof and system?
We can access many systems, but roof pitch, height, weather and safe access need to be checked first. Send us the details and photos so we can advise.
Tell us about the solar panel cleaning job
Tell us the property address, roof type, approximate number of panels and any access concerns. Photos of the roof and array help us assess the job.