Businesses, schools, farms and facilities
Most commercial roofs are close to flat, so the rain doesn’t wash much off. Dust, bird mess and lichen just sit on the glass and the panels quietly make less power. We clean them with pure water and soft brushes, give the whole system a once-over while we’re up there, and send you a report with before and after photos.
Tell us about the site and we’ll come back with a price.
Last step. Takes about 20 seconds.
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Who we clean for
We’ve cleaned commercial rooftops with thousands of panels on them. We also do plenty of school blocks, sheds and small office roofs. Bigger roofs just mean more gear and more planning.
Big flat roofs pick up yard dust, truck exhaust and plenty of bird mess, and nobody sees it from the ground. These are often our biggest jobs, some with thousands of panels, so access and safety get planned before anyone goes up.
Recent: a timber plant in Katikati that keeps having us back.
Schools tend to have big arrays and not much budget for looking after them. A clean every year or so keeps the system paying its way, and we keep kids well clear of where we’re working.
Recent: primary schools in Hamilton and Auckland.
Orchard dust, pollen and spray drift land on everything nearby, panels included, and summer bakes it on.
Recent: a head office in Mount Maunganui we’ve cleaned every year since 2024.
Cowshed and implement shed roofs cop dust, pollen and damp. Pure water shifts it, so there’s nothing harsh running off near the stock.
Recent: a 90-panel cowshed roof. The farmer’s review is further down.
Look after a few buildings? We can do them in one go and give you the paperwork for each one.
Recent: two office buildings for a Manukau property trust, done every year.
Marae, halls and community buildings. We work around the times the place is being used.
Recent: a marae roof in Northland.
Ground-mounted farms are a different job with different gear. Here’s how we do those.
Solar farm cleaning →
Installers send us work orders for their commercial clients, and we send the report back to them.
How that works →

Flat roofs don’t drain fast, so whatever lands on the panels tends to stay there. Dirt collects along the bottom edge of every panel and builds up from there.
We’ve seen output improve by up to 30% on some systems we’ve cleaned. Plenty of sites get back less than that. Your report shows exactly what came off, so you can judge it for yourself. How much power dirty panels lose



A rough sum for how much power a dirty array throws away each year. Change the numbers to match your site.
Just a rough guide. Your report will show what actually came off the glass.
Big site or small, it goes the same way every time.
Panel count or system size, the address and a few roof photos. If it’s a big or tricky site we’ll come and look first. Then you get a quote for that site.
We write a safety plan for your site, do your induction, and set up harnesses, exclusion zones or a lift if the roof needs one.
Pure water and soft brushes, or the robot on the big flat roofs. No detergent, no water blaster. Lichen gets its own treatment.
While we’re up there we look over the panels, mounts, cabling and inverter. If something needs your electrician or installer, we’ll tell you.
Before and after photos, drone shots and notes from the check. Ready to file for your insurer, your installer or your own records.
Most commercial sites need a clean once or twice a year. We can put yours on a regular schedule so nobody has to remember.
The SolarCleano F1 at work. It’s under a minute, give it a watch.
New Zealand’s first solar cleaning robot
On big flat roofs we bring the SolarCleano F1. It drives down each row with a spinning brush and pure water while one of us steers it, and the last panel gets the same clean as the first. We take the same robot to solar farms.

Your facilities manager, insurer or installer will want proof the job was done. Every commercial visit ends with a written report that has:
Want to find faults you can’t see? Add a drone thermal inspection on the same visit. It picks up hot spots and failing cells.
Your health and safety team will want this before we set foot on site. Here’s what they’ll get.

Our health and safety systems are checked independently under Tōtika, the scheme most big commercial clients in New Zealand ask for.
A written site-specific safety plan and job safety analysis for every commercial job, sent before we turn up.
Harnesses, lanyards and exclusion zones on every roof. If the roof needs a lift, we bring one.
We’re fully insured and can send the certificates. We’ll do your site induction and fill in whatever your contractor system asks for.
5-star Google reviews
“We engaged Eco Shine to clean the solar panels on the roof of our commercial building. The quote was supplied promptly and the price was very reasonable. The team turned up on time and not only cleaned the panels, but provided before and after photos and a maintenance report as part of the service. Top notch service.”
“Our cowshed roof has 90 panels which were dull and dirty from dust, pollen and mould. Eco shine got them back to beautiful shiney panels which the power of water and the right gear to clean them with. No harsh chemicals needed. I will be booking them annually.”
“Great before and after result, very pleased with their ability to work at heights and access all parts of the array to make it nice and clean…”
“Edwin and the team from Eco Shine do a fantastic job. We have no reservations referring our solar customers to them to get their solar systems cleaned and maintained. Eco Shine are a professional but friendly family owned business offering a great service. 100% recommend.”
We price commercial work per panel, and the rate drops as the number of panels goes up. A roof with a thousand panels costs a lot less per panel than a small office with forty.
Travel, pure water, working at height and the safety paperwork are listed as separate lines, so you can see where the money goes. Prices are plus GST.
We don’t put commercial prices online. Access, height and how dirty the panels are change the job too much from one site to the next, so we quote each one. House prices are on our solar panel cleaning prices page.
Look after a few sites, or install systems for clients? Ask for our commercial rate card at commercial@ecoshine.co.nz.
The more we know, the quicker and sharper the quote.
For solar installers and O&M contractors
We already do commercial maintenance for solar installers. You send a purchase order, we clean the panels and check the system, and the report and photos come back to you. Pass them on or keep them on file, whatever suits.
It depends on how many panels there are, how easy the roof is to get onto, how dirty they are and how far you are from our nearest team. We charge per panel, and the rate drops as the system gets bigger. Travel, water, height access and the safety paperwork show up as separate lines. Send us the panel count, the address and a few photos and we’ll price your site. Prices are plus GST.
Most commercial sites need it every 6 to 12 months. If you’re near a busy road, industry, orchards, farms or the coast, or the birds like your roof, go for the shorter end. Your first report shows how fast your panels get dirty, and we’ll set the next clean from that. There’s more in our guide to how often commercial solar panels should be cleaned.
No. Commercial solar panel washing for us means pure water and soft brushes on long poles, or the robot on big flat roofs. Pure water dries without spots, so we don’t need detergent, and a water blaster never goes near the glass. Lichen gets its own treatment and is worked off gently.
We’re Tōtika prequalified and fully insured. For every commercial job we write a site-specific safety plan and job safety analysis, do your induction, and send insurance certificates and anything else your contractor system needs before we start.
Yes. We’ve cleaned commercial rooftops with thousands of panels. We plan access for each roof with harnesses, exclusion zones and a lift if it’s needed, and the robot does the heavy lifting on long flat arrays. Ground-mounted farms are a separate job, see solar farm cleaning.
Yes. Installers send us work orders for their commercial clients. We clean, check the system and send the report and photos back to you. Email commercial@ecoshine.co.nz for our commercial rate card.
Pure water and soft brushes is the gentle approach panel makers generally recommend, and some warranties expect the panels to be kept clean. If yours has specific cleaning terms, send them through and we’ll stick to them.
Commercial sites anywhere in the North Island, Far North to Wellington. Our head office is in Mount Maunganui. Here’s every area we cover. Further south? Get in touch and we’ll tell you what we can do.
We cover commercial sites from the Far North down to Wellington, out of our base in Mount Maunganui. Pick your area, or send us the address and we’ll tell you when we’re next nearby.
Send us the panel count, the address and a few roof photos and we’ll come back with a quote. We answer the phone 7 days.