When homeowners think about solar, they focus on panels, inverters, and savings. And rightfully so—today’s solar equipment is incredibly reliable, often backed by 25+ year warranties.
But there’s one critical part of a solar installation that almost no one talks about:
What’s happening underneath the panels.
The Hidden Space Under Your Solar Panels
Every roof-mounted solar system creates a gap between the panels and the roof surface.
That space is necessary for:
- Airflow (to keep panels efficient)
- Mounting hardware (rails or rail-less systems)
- Electrical components (microinverters or optimizers)
But that same space also creates something else: The perfect home for pests.
Why Animals Love Solar Panels
That gap underneath your system is:
- Warm
- Protected from weather
- Hidden from predators
It’s an ideal nesting area for:
- Birds
- Squirrels
- Mice and rats
- Even larger animals depending on the area
Once they move in, the problems start quickly.
A Real Problem: My Personal Experience
I had a squirrel nest under my own solar panels. It chewed through one of the wires beneath the system.
What followed:
- System issues
- A required service visit
- Out-of-pocket costs (not typically covered under standard warranties)
I later found the squirrel dead on the side of the house—likely electrocuted.
This isn’t just a nuisance. It’s dangerous.
What’s Actually at Risk Under Your Panels
A solar system isn’t just panels on your roof. Underneath, you have:
- Roof penetrations (sealed entry points into your home)
- Mounting rails (or rail-less attachments)
- Microinverters or power optimizers
- String wiring connecting panels
- Grounding wires
- Connections leading to a combiner box
All of this is exposed within that gap.
And here’s the truth:
A solar installation is only as strong as its weakest connection.
Even if your panels are warrantied for 25+ years, a single chewed wire can take your system offline.
The Bigger Risks: It’s Not Just Repairs
Animal activity under solar panels can lead to:
1. Electrical Damage
Chewed wires can:
- Shut down production
- Require costly troubleshooting
- Create dangerous electrical faults
2. Fire Hazards
Damaged wiring increases the risk of:
- Arcing
- Overheating
- Potential roof fires
3. Roof Leaks
Animals can:
- Disturb flashing around penetrations
- Chew into roofing materials
- Create pathways into your attic
4. Structural & Interior Damage
Once under the panels, pests can:
- Burrow into the attic
- Damage insulation
- Create long-term home issues
What Are Pest Guards (Critter Guards)?
Pest guards—also called critter guards—are protective barriers installed around the perimeter of your solar array.
At Public Service Solar, we call them wire guards because that’s what they truly protect.
How They Work:
- Installed along the edges of the solar panels
- Extend down to seal off the gap
- Made with small openings to allow airflow
- Prevent animals from getting underneath
What Ours Are Made Of:
- Durable black aluminum
- Sleek, low-profile design
- Custom-fitted to each installation
Unlike cheap alternatives (like basic chicken wire), high-quality guards:
- Blend in with the system
- Maintain aesthetics
- Last as long as your solar system
Cost vs. Consequences
Most solar companies treat pest guards as an add-on.
Typical cost: Around $1,500 for an average installation
But compare that to:
- Service calls
- Electrical repairs
- Potential roof damage
- Lost solar production
It’s a small upfront investment to avoid long-term headaches.
Why Public Service Solar Includes Them on Every Job
At Public Service Solar, we install wire guards on every single system—no exceptions.
Why?
Because we stand behind our work with:
- Lifetime workmanship warranty
- Roof penetration leak protection
- Full-system accountability
If we’re going to warranty the system long-term, we need to protect it properly from day one.
An Unexpected Bonus: Better Aesthetics
Beyond protection, pest guards actually improve the look of your system.
They:
- Create a clean, finished edge
- Hide wiring and gaps
- Make the installation look more integrated with your roof
It’s one of those rare upgrades that improves both:
- Functionality
- Appearance
Final Takeaway: Protect the System Beneath the Panels
Solar panels themselves are built to last decades.
But your system’s longevity depends on more than just the panels.
If you want a system that truly lasts 25+ years, you need to:
- Invest in quality equipment
- Ensure proper installation
- Protect what’s underneath
Because once animals get in, the damage can start fast.
Thinking About Solar?
If you’re considering solar—or already have it installed—make sure your system is protected with proper pest guards.
At Public Service Solar, we don’t treat it as an upgrade.
We treat it as essential.
