How Do You Stop Pigeons From Nesting Under Solar Panels?

The most reliable way to stop pigeons from nesting under solar panels is to block access to the gap between the panels and the roof. That usually means cleaning out existing nests and droppings first, then installing a mesh guard around the edges of the array so birds can’t get underneath. Scare tactics like plastic owls may help for a little while, but exclusion is what keeps the problem from coming back.

If you live in Fresno, Clovis or anywhere in the Central Valley, you’ve probably seen pigeons lined up along rooflines. Once a pair finds the shady pocket under a solar array, they tend to stick around, and they often bring friends. Here’s why it happens, what works, what doesn’t, and when it makes sense to call a professional.

Why pigeons love the space under solar panels

From a pigeon’s point of view, the gap under a rooftop solar array is close to perfect. It’s covered from above, shaded from the summer sun, sheltered from wind and rain, and hard for hawks, cats and other predators to reach. Rooftops also keep pigeons close to food and water, which are easy to find in neighborhoods and around farmland.

Pigeons are also loyal to their nesting spots. Once they’ve raised young somewhere, they’ll often return to it again and again. That’s why a small problem in spring can turn into a full colony by fall if nothing is done, and why simply shooing them away rarely works for long.

Signs pigeons are nesting under your panels

You don’t need to get on the roof to spot the warning signs. In fact, please don’t. Roofs and solar arrays are slippery and easy to fall from, especially when droppings are involved. From the ground or a window, look and listen for:

• Cooing or scratching sounds coming from the roof, especially early in the morning
• Birds flying in and out from under the edges of the panels
• Droppings on the panels, roof, gutters, patio or driveway below
• Twigs, feathers or nesting material poking out from under the array
• Gutters or downspouts that seem to clog more often than they used to
• A drop in solar production that you can’t otherwise explain

Why it’s worth dealing with quickly

Pigeons under panels aren’t just noisy neighbors. Their droppings are acidic and messy, and over time they can stain roofing, panels and paint. Nesting material and debris pile up under the array where water needs to drain, then wash into gutters and downspouts and clog them. Droppings that land on top of the panels block sunlight, which can cut into how much power your system produces.

There’s also the cleanup factor. Old nests and droppings are unpleasant and unsanitary to deal with, and the longer a colony stays, the bigger the job gets. Addressing it early is almost always easier, faster and less messy than waiting until next season.

What works (and what doesn’t)

Mesh guards and exclusion: the long-term fix

The most effective approach is exclusion, which means physically blocking birds from getting under the panels. Professionals typically install a sturdy wire mesh around the perimeter of the array, held in place with clips designed for solar panels so nothing has to be drilled into the panels themselves. The mesh closes the gap while still letting air circulate and water drain. Done right, it looks tidy, is hard to notice from the street and keeps birds out for the long haul.

The key step is cleaning first. If mesh goes up over an existing nest or a pile of debris, you’re just sealing the problem in. A good bird proofing job starts by removing nests, droppings and debris from under the array, then installing the guard so the space stays clean.

Deterrents that help a little

Plastic owls, reflective tape, pinwheels and similar visual deterrents can make pigeons nervous for a while. The trouble is that pigeons are smart, and they quickly get used to things that never move or change. These products can be useful as a short-term measure or alongside exclusion, but on their own they rarely solve a nesting problem under solar panels.

What to avoid

Never use poisons, glue traps or anything meant to harm birds. Besides being cruel, these methods can hurt pets, hawks and other wildlife, and they don’t fix the real issue, which is the open space under your panels. New birds will simply move in. It’s also smart to check whether any local rules apply before removing nests, since wildlife regulations vary and some bird species are protected. A humane, prevention-focused approach is the way to go.

Can you do it yourself?

Honestly, this is one job we recommend leaving to a pro. Bird proofing a rooftop array means working on the roof, often on a pitched surface, around expensive equipment and slippery droppings. You also need the right clips and mesh so you don’t risk damaging the panels or wiring, and you have to clear out everything underneath first. For a ground-mount system that’s easy to reach, a handy homeowner may be able to clean up droppings, but for rooftop systems the safest choice is to stay on the ground and let a licensed and insured crew handle it.

There’s still plenty you can do from the ground. Keep an eye on the roofline for activity, avoid leaving out pet food or birdseed that attracts pigeons, and fix dripping hoses or standing water nearby. Making your yard less inviting won’t evict birds that are already nesting, but it helps keep new ones from getting comfortable.

Need help? Call Ducky’s

Ducky’s Exterior Cleaning offers humane pigeon control and solar panel bird proofing for homes across Fresno, Clovis and the Central Valley. We clean out nests and droppings, install mesh guards around your array, and can clean your panels during the same visit. Estimates are always free. Call (559) 492-0155. We’re open 7 days a week, 5am to 10pm, and every job is backed by our 100% satisfaction guarantee.