Critter Guards and Skirts for Solar Panels: Are They Worth It?

A solar panel critter guard is a strip of metal mesh or a solid skirt fastened around the edge of a rooftop array to stop squirrels, birds and debris from getting underneath. It is worth it if you live near trees or have had pigeons or squirrels on the roof, because animals nesting under panels can chew wiring and leave droppings and debris that cut output.

SolarReviews notes an installer can add guards while panels are being installed or help add them to an existing system. The key is choosing a type that attaches without drilling the panel frames, which manufacturers say can void the warranty.

Key takeaways

• EnergySage describes critter guards as metal screening attached along the sides of rooftop panels to keep animals and debris out.
• Squirrels can chew exposed wires, birds nest and leave droppings, and leaves under panels can create a fire hazard.
• SolarReviews puts custom whole-system installs at roughly $500 to $2,000, with DIY netting from about $40 for 50 feet.
• REC says extra holes drilled in the frame invalidate its panel warranty, and Qcells says not to drill additional holes. Clip-on systems avoid this.
• Federal rules require a permit to destroy active nests (with eggs or chicks) of protected migratory birds. Rock pigeons, European starlings and house sparrows are not protected under that law.

What is a solar panel critter guard?

A critter guard closes the gap between the bottom edge of your panels and the roof. One common type is metal mesh clipped to the panel edge and extending down to the roof; Bird-X, for example, sells a stainless steel mesh kit with UV-protected nylon clips. Trim and skirt products take a similar approach, and SolarReviews lists a peel-and-stick trim among the options.

EnergySage, in an article updated July 31, 2024, describes them as strips of metal screening resembling high-quality chicken wire. It notes that companies such as SnapNrack and SolaTrim make different styles of critter guards. Racking maker Unirac sells one called GUARDIAN, which it describes as a tool-free, clip-on system with reusable metal clips and fire-resistant mesh in 5-, 6- and 8-inch heights, sold separately from the clips.

Why animals end up under solar panels

The space under a rooftop array is shaded, dry and hard for predators to reach. That makes it attractive for nesting. The problems this causes:

• Chewed wiring. EnergySage says squirrels may nest under panels and chew exposed or hanging wires, which can cut power from the panels. Bird-X, a pest-control supplier, also warns about squirrels chewing through wiring.
• Droppings and nests. Birds nest under and around panels, and their dirt and droppings can significantly reduce output, according to EnergySage.
• Debris and fire risk. Leaves, twigs and nest material can build up near wiring. EnergySage calls this a fire hazard.

Warranty coverage for this kind of damage is limited. The Qcells limited warranty dated October 1, 2025, excludes damage caused by animals, and SolarReviews notes that homeowner's insurance typically does not cover pest damage. For more on prevention, read our guide to birds and pests under solar panels.

Solar panel critter guard options compared

Option	How it attaches	Pros	Watch out for
Clip-on wire mesh (pro installed)	Clips to the panel frame edge, no drilling	Strong, durable, keeps airflow	Must be removed for roof work or panel service
Racking-maker systems such as Unirac GUARDIAN	Tool-free clips on the module return flange	Designed for compatible racking and many roof types	Check compatibility with your panels and racking
DIY mesh kits	Clips or fasteners, depending on the kit	Low material cost	Roof safety risk and possible wiring or panel damage
Peel-and-stick trim	Adhesive	No tools	REC says never to apply paints, adhesives or detergents to the front or rear of the panel; ask your panel maker first
Solid skirt	Varies by product	Neat appearance	Must not block airflow or drainage

What do critter guards for solar panels cost?

We found no government or utility price data for critter guards, so treat these figures as rough. SolarReviews lists the following (checked November 2026; the page was marked as updated about a year earlier):

• Custom professional installation for a whole system: about $500 to $2,000.
• Online netting: as cheap as $40 for 50 feet.

Prices rise with the number of panels, roof height and pitch, and whether the guard goes in during installation or as a separate trip. If you are getting quotes for a new system, ask for critter guards as a line item so you can compare. Our solar quote checker helps you see whether the rest of a quote is reasonable.

Warranty and installation rules to check first

Panel makers are strict about what touches their frames:

• No drilling. REC's installation manual says the warranty is voided if additional holes are made in the frame. Qcells' North American manual says not to drill additional holes or modify the module, and requires written confirmation for modifications.
• Keep drainage clear. REC says frame drainage holes must not be covered, and Qcells says to make sure they are not covered.
• Keep airflow. REC requires at least a 20 mm (0.8 inch) gap under the frame and tells installers in hot regions to avoid airflow barriers. Open mesh is better than a sealed skirt for this reason.
• Protect cables. REC says cables should not hang loose where friction or stress can damage them. Good cable management makes guards more effective.

Bird-X notes its clip-on mesh kit attaches without drilling or glue for the same warranty reasons. Before any retrofit, read your own panel manual or ask your installer.

Birds, nests and the law

If birds are already nesting under your panels, timing matters. The U.S. Fish and Wildlife Service FAQ (revised June 2018) says a permit is not needed to destroy inactive nests (no eggs or chicks) of migratory birds, but destroying an active nest requires a federal permit. Eagle nests and nests of threatened or endangered species fall under separate permits, and some states require their own permit too. European starlings, rock pigeons and house sparrows are not protected under the Migratory Bird Treaty Act, though state and local rules can still apply. A licensed wildlife or pest professional can advise on your situation.

A practical plan is to have a pro clear nests outside nesting season, clean the area and install guards in the same visit.

Should you install critter guards yourself?

EnergySage advises against DIY installation, calling it physically dangerous and a risk to the system. A mis-pulled wire or shifted panel can cause bigger problems. SolarReviews also warns that self-installing one wire product with fasteners could lead to a risky or improper installation.

Good reasons to hire a pro:

1. Working at the roof edge is a fall risk.
2. A pro can check wiring for chew damage before sealing the array.
3. Your installer knows which clips are approved for your panels and racking.
4. Work by others may affect your installer's workmanship warranty, so check its terms first.

If your installer has gone out of business, EnergySage suggests contacting another local installer. Our solar orphans guide explains how to find service.

Plan for removal later

Critter guards have to come off whenever panels are removed. Tesla's support page, for example, says pest abatement such as mesh netting or fencing must be removed before a panel removal visit, or the appointment may be canceled and a truck-roll fee added. If you plan a roof replacement with existing solar panels, budget to remove and reinstall the guards too.

Next steps

Look under the edge of your array with binoculars for nests, droppings or gnawed wires. If you see signs, call your installer, ask for clip-on mesh that does not touch the glass or drill the frame, and have damaged wiring checked first. Getting quotes for a new system? Use the solar panel calculator to confirm expected output, and compare local sunshine data on our solar panels by state pages.