Solar clean
From £150 for most homes
A thorough drone clean with purified water.
- Visual check for damage before cleaning
- Low-pressure, purified water clean
- Before-and-after aerial photos
Solar panel cleaning by drone
Clean panels make more electricity. We wash yours with purified water from a drone, so nobody climbs on your roof and nothing scratches the glass.
For every size of system
From a 10-panel home roof to a field of ground-mounted arrays. On larger sites a drone is often the fastest and safest way to reach every panel.
HomesPitched roofs up to four storeys, with nobody on the roof.
BusinessesWarehouses, workshops, schools, hotels and holiday parks.
FarmsBarns and sheds where dust and droppings build up fast.
Solar farms and O&MSubcontracted cleaning for installers and maintenance companies.
Before and after
Years of lichen, bird droppings and grime, cleared in one visit. Drag the slider to compare.
Before
After
Estimate your power loss
Dirty panels can lose a noticeable share of their output. Set your system size and how dirty the panels look to see roughly what that costs you each year.
How we clean
Gentle on your panels, thorough on the dirt.
- We look before we clean. A drone survey records any existing cracks, loose fixings or damage, and we tell you before we start.
- Purified water. Our water is filtered to remove minerals, so it dries without spots or streaks.
- Low pressure, no contact. A soft spray lifts dirt without brushes on the glass or jets on the seals.
- Biodegradable products only where needed. For stubborn bird fouling or lichen, and only where the manufacturer allows it.
- A safe working area. We plan every flight, check the airspace and keep people clear while we work.
- Checked afterwards. We inspect the result and send before-and-after photos.
Solar Health Check: clean and check in one visit
A clean makes your panels shine. A health check tells you whether the whole system is working. You get both from one visit, with a report you can keep.
Solar Health Check
From £200 clean and check
Cleaning plus a full inspection of your system.
- Everything in the solar clean
- Thermal scan for hot spots and faulty cells
- Close-up check of frames, fixings, cables and bird guards
- Inverter reading before and after cleaning
- Written report with faults marked panel by panel
- Dated maintenance record you can show your insurer
- Advice on when to clean next
Care plan
Save 10–15% on every visit
Regular cleaning on a schedule that suits your site.
- Yearly, twice-yearly or quarterly visits
- We remind you and book the next visit
- A full maintenance history for your warranty
- Ideal for businesses, farms and O&M contracts
Why debris shortens panel life
Dirt doesn't just block light. Patchy debris like bird droppings, leaves and moss can damage the panel underneath.
Each panel is a chain of cells. A covered cell can't produce power, so it resists the current from the rest of the chain and turns it into heat. This is a hot spot.
Over months, hot spots can discolour and crack cells, blister the backsheet and wear out the panel's bypass diodes. That means lower output for the rest of the panel's life, and in bad cases a panel that needs replacing.
Even dirt that builds up along the bottom edge of a low-angle panel has the same effect on the bottom row of cells. Regular cleaning removes the cause. A thermal scan in our Solar Health Check shows whether damage has already started.
Keeping your warranty safe
Solar panels usually come with a 10 to 15-year product warranty and a 25-year performance warranty. Cleaning the wrong way can put them at risk.
Most manufacturers publish cleaning instructions in their installation manual. They commonly rule out high-pressure washers, abrasive brushes or pads, strong detergents and solvents, and standing or walking on the panels. Some also set limits on water hardness and temperature.
Before we clean, we identify your panel make where we can and follow that manufacturer's guidance. If you have your warranty paperwork, send it to us and we'll check it for you.
After every visit you receive a dated report with photos of the panels before and after cleaning, plus any damage we found. If you ever need to make a claim, you have a record showing the system was looked after properly.
Can void a warrantyHigh-pressure jets on seals and junction boxes
What we doLow-pressure spray only
Can void a warrantyDetergents, solvents and hard tap water
What we doPurified water, biodegradable products only if allowed
Can void a warrantyWalking, kneeling or leaning ladders on panels
What we doNobody on the roof, ever
Can void a warrantyAbrasive brushes, pads and scrapers
What we doNothing touches the glass
Can weaken a claimNo evidence of maintenance
What we doDated photo report every visit
Can weaken a claimDamage that was never recorded
What we doPre-clean survey of every panel
How often to clean
It depends on what's around your panels. These are the intervals we recommend as a starting point. We'll adjust them after your first visit.
Book a clean| Site | Recommended |
|---|---|
| Homes, standard sites | Every 12–18 months |
| Near trees or nesting birds | Every 6–12 months |
| Farms and agricultural buildings | 2–4 times a year |
| Coastal properties | 2–4 times a year |
| Industrial sites and main roads | 2–4 times a year |
| Flat or low-angle roofs | Every 6–12 months |
Solar cleaning questions
Is drone cleaning as good as hand cleaning?
For normal soiling such as dust, pollen, droppings and light lichen, yes. Purified water dissolves and lifts the dirt and dries clear. For very heavy, long-neglected build-up we may recommend a biodegradable pre-treatment or a second pass, and we'll tell you before we start.
Do you use chemicals?
Usually not. Purified water does most of the work. Where stubborn fouling needs it, we use a biodegradable cleaner approved for solar panels, and only if your panel manufacturer allows it.
Where does the water go?
We use only what's needed, typically a few hundred litres for a large job. Purified water with no chemicals runs off into your gutters like rain. Where products are used, we plan how to contain the runoff as part of the site risk assessment.
Can you clean panels in winter?
Yes, as long as it's above freezing and the wind and rain allow us to fly. Cleaning in late winter or early spring means your panels are clear before the long, sunny days.
Can you clean my roof or gutters at the same time?
Mention it in your quote request. We can inspect your roof and gutters on the same visit, and we're adding drone roof cleaning to our services.
What if you find a fault?
We'll mark the exact panel in your report with photos and thermal images. We don't carry out electrical repairs, but your installer or an MCS-certified electrician can use the report to fix it quickly.
See your price in two minutes
Tell us how many panels you have and how easy they are to reach. Homes see a price range straight away.