As more homeowners in Massachusetts and beyond invest in solar energy, the focus naturally shifts from installation to long-term maintenance and protection. One key question that often comes up is:
Are critter guards necessary for solar panels?
The short answer?
Yes, if you want to protect your investment.
While not always required by code, critter guards offer vital protection against threats you may not have considered when installing your solar panels. Below, we’ll explore exactly what critter guards do, why they matter, and when they’re most important.

What Are Critter Guards?
Critter guards are mesh barriers, typically made from metal, that are installed along the edges of your solar panel array. They act as a physical shield to prevent animals like – squirrels, pigeons, raccoons, and other small critters from getting underneath your panels and making a home there.
If you’re new to the concept, take a look at our blog: What is a Critter Guard?

Why Solar Panels Attract Animals?
Solar panels create a cozy environment for pests. The space beneath the panels is:
- Warm: Retains heat, especially in colder months
- Dry: Offers shelter from rain and snow
- Protected: Safe from predators
This makes it an ideal nesting spot for birds and small animals, particularly in wooded or urban – suburban areas common throughout Massachusetts.
The Risks of Leaving Solar Panels Unprotected
Chewed Wires
- Electrical shorts
- System inefficiency
- Fire hazards
Even minor wire damage can affect performance and void your solar panel warranty.


Nesting and Debris Build-Up
Pigeons and birds often bring nesting materials like twigs, leaves, and plastic. These not only block airflow under your panels (reducing cooling and efficiency) but also present a fire hazard, especially if there’s exposed wiring.
Learn more about this hidden danger in our post: How Nesting Under Solar Panels Can Ignite a Roof Fire in Massachusetts
Do All Homes Need Critter Guards?
Not every solar panel system is equally vulnerable, but many are.
You’re especially at risk if:
- You live near trees, parks, or wooded areas
- Your roof has easy access points for animals
- You notice birds or squirrels near your roof
- Your system was installed without pest protection
If your panels are installed close to the roof’s edge or are elevated, the open space underneath can be easily accessed by pests.
Are Critter Guards a One-Time Installation?
When installed professionally using durable, weather-resistant materials, critter guards are generally a one-time install that requires minimal maintenance. However, occasional checks after major storms or roof work are recommended.
We explain this more in detail in our post: Are Critter Guards a One-Time Install or Ongoing Maintenance?
Added Benefits of Installing Critter Guards
Beyond pest prevention, critter guards can:
- Extend the life of your solar investment
- Preserve your panel efficiency
- Avoid expensive repair costs
- Maintain system warranties
They also help keep your roof clean by reducing animal droppings, feathers, and nesting debris.
Curious about all the perks? Check out our blog on What Are the Benefits of Installing Critter Guards on Solar Panels in Massachusetts?
DIY vs. Professional Installation
While DIY kits are available, they often fall short when it comes to durability, safety, and proper fit. Improper installation can damage your panels or allow gaps where animals can still sneak through.
Want to know what goes into a proper setup? Read our step-by-step guide: How to Install Critter Guard on Solar Panels in Massachusetts?
Conclusion: Are Critter Guards Necessary?
If you care about the performance and longevity of your solar panel system, then yes, critter guards are absolutely necessary. They’re a low-cost, high-impact solution that protects your system from avoidable and potentially costly damage.
Whether you’re installing a new system or want to protect an existing one, adding critter guards is a proactive step toward safer, more efficient solar energy use.
Get Protected Today
Critter Solar Guards provides professional critter guard installation across Massachusetts. We help homeowners protect their solar investments from unwanted pests and damage.
Schedule your free inspection today and get peace of mind – your panels will thank you.





