Pigeons love the sheltered gap under solar panels. Here is the damage nesting birds cause, how clip-on mesh seals the array without drilling, why nests and droppings are cleaned out first, and when to act. Pigeons nest under solar panels because the gap between the panels and the roof is sheltered, shaded and out of reach of predators. The reliable fix is to have the nests, droppings and debris removed, the panels cleaned, and a mesh barrier fitted around the edge of the array with non-penetrating clips, so nothing is drilled into the panels or the roof. Acting early, before birds settle in, is simpler and cheaper than dealing with years of build-up.
Why your array attracts birds
Installing solar creates a covered space on the roof that did not exist before: a shaded cavity under each panel, protected from rain and wind. Feral pigeons are especially drawn to it in Sydney suburbs because they are used to nesting on buildings, and once birds find a sheltered site they tend to keep returning to it. The problem often starts small and grows quietly, because you cannot see under the array from the ground.
Common signs include:
- Cooing, scratching or fluttering noises from the roof, often early in the morning
- Twigs, feathers or nesting material poking out from under the panels
- Droppings on the panels, gutters, driveway or outdoor areas below the roof edge
- Birds regularly landing on the ridge and disappearing under the array
What nesting birds can damage
Birds under the array are more than a noise problem. Over time they can cause:
| Problem | What happens | Why it matters |
|---|---|---|
| Droppings on the glass | Concentrated patches build up that rain does not wash off | Shading part of a cell can reduce the output of that panel and, depending on the layout, others wired with it |
| Nesting material | Dry twigs and debris pile up under panels and around cabling | Obstructs water flowing off the roof and collects around electrical components |
| Blocked gutters and valleys | Droppings and debris wash down into gutters | Overflowing gutters can push water back into the roof space |
| Cable and conduit damage | Birds and pests pick at loose or exposed cabling | Damaged insulation is an electrical fault risk that needs a licensed electrician |
| Staining and corrosion | Acidic droppings sit on frames, rails and roofing | Can mark and wear roof surfaces and fittings over time |
How clip-on mesh works
The barrier is a durable, UV-resistant coated mesh that runs around the exposed perimeter of the array, closing the gap between the panel edge and the roof surface. It is held in place by clips that grip the panel frame, so there is no drilling into panel frames or roofing and no adhesive on the glass. The lower edge of the mesh is shaped to follow the roof profile, whether that is tiles or metal sheeting, so there are no entry points left along the edge.
Because nothing is drilled, the mesh avoids the kind of modification that can put panel or roof warranties at risk, and it can be unclipped in sections if panels ever need to come off for repairs or roof work. Air still flows freely under the panels, which matters because panels lose efficiency as they heat up. That is also why solid fillers such as timber strips or foam are a poor substitute: they trap heat and moisture, block drainage and make later servicing harder.
Why cleaning comes first
Fitting mesh over an active nest simply traps birds, eggs and debris under the array. Our process is:
- Inspect. We check how established the birds are, whether any nests are active and whether cabling has been damaged.
- Remove nests and debris. Nesting material, droppings and feathers are cleared from under the panels and from nearby gutters.
- Clean. The area under the array is cleaned and the panels are washed, so droppings are not left baking on the glass.
- Fit the mesh. Mesh is cut to the array perimeter, clipped to the frames and shaped to the roof.
- Check and photograph. We confirm there are no gaps and provide photos of the finished job.
If damaged cabling is found, a licensed electrician repairs it before the array is sealed. All of this is roof work around live DC equipment, so please do not try to remove nests yourself or push anything under the panels.
Native birds and the right timing
Pigeons and common mynas, the usual culprits, are introduced species. Native birds are protected in NSW, so if we find an active native bird nest we leave it undisturbed until it is no longer in use before proofing that section. The best time to act is as soon as you notice birds going under the panels, before nests are established. Other good opportunities include:
- Soon after a new installation on a roof where pigeons are already active nearby
- When you are having the panels professionally cleaned, so one roof visit does both jobs
- When adding panels, so the new section is meshed at the same time as the old
What it costs
Our energy market lists Bird-Proofing Mesh for Solar Panels from $690 for up to 20 panels, which includes removing nests and droppings before the mesh goes on. Solar Panel Cleaning is listed from $9 per panel on a single-storey home, with a minimum charge of $199 per site attendance. Both are indicative starting prices confirmed after a site assessment, because roof height, pitch, roof type, the number of separate panel groups and the amount of build-up all change the time involved. If only one section of the array has birds, ask whether the whole perimeter should be meshed at once; birds moved on from one edge will often try the next unprotected one, and a second roof visit costs more than doing it together.
Next steps
If you can hear or see birds under your panels, contact our team and describe what you are noticing; we will explain what is involved for your roof. If you are planning a new system or extra panels on a roof where pigeons are already around, request a free quote and ask for bird-proofing to be included in the discussion from the start.
Frequently asked questions
Will the mesh be visible from the street?
It is visible up close, but because it sits in the shadow under the panel edge and is dark in colour, it tends to blend into the array when viewed from the street. On most single-storey homes you need to be looking for it to notice it. If your home is in a heritage or conservation area, we can talk through which array edges face the street before any work starts.
Can I use spikes, fake owls or deterrent gels instead?
These may discourage birds from landing on ridges or gutters, but they do not close the sheltered gap under the panels, which is what pigeons are actually after. Decoys tend to lose their effect once birds get used to them, and gels or sprays should never be applied near panels, connectors or cabling. Physically closing the gap deals with the cause rather than the symptom.
Does bird-proofing need to be redone later?
Properly fitted mesh is designed to last for many years, but it is worth having it looked at during routine inspections, especially after storms or if panels have been removed and refitted for roof repairs. Occasionally determined birds find a small gap at a corner or where the roof profile changes, and a quick adjustment usually closes it again.
Please Login or Sign up to be able to comment