
When Massachusetts homeowners think about critter guards, they usually picture squirrels, birds, or pigeons. But another question comes up just as often, especially in suburban and wooded areas:
Will critter guards stop raccoons or other larger animals from getting under solar panels?
The answer is not a simple yes or no. It depends on how raccoons behave, what critter guards are designed to do, and what Massachusetts wildlife rules allow homeowners to do.
This blog breaks it down in a clear, practical way so homeowners know what protection critter guards actually provide and where their limits are.
Why Raccoons Are a Concern in Massachusetts
Raccoons are common across Massachusetts, including suburban neighborhoods, wooded areas, and even city edges. They are:
- strong climbers
- highly intelligent
- persistent when shelter or food is nearby
Unlike squirrels or birds, raccoons are not usually trying to nest under solar panels. Instead, they may:
- investigate panels while searching for food
- attempt to access attic entry points
- disturb roof components while climbing
Because of their size and strength, raccoons interact with solar systems very differently than smaller animals.
What Critter Guards Are Designed to Stop
Critter guards are engineered to block small to medium-sized wildlife from accessing the space beneath solar panels.
They are highly effective against:
- squirrels
- birds and pigeons
- chipmunks
- rats and mice

By sealing the panel perimeter, they prevent nesting, chewing, and debris buildup. If you want a deeper explanation of how this works, How Do Critter Guards Protect Your Solar Panels? explains the design and function clearly.
This level of protection is why critter guard solar panels in Massachusetts are so commonly recommended.
Do Critter Guards Physically Stop Raccoons?
Critter guards are not designed to act as a raccoon barrier.
Here’s why:
- raccoons are significantly heavier
- they use force rather than squeezing through gaps
- they target roof edges, vents, or fascia rather than panel gaps
A properly installed guard can discourage raccoons from prying underneath panels, but it should not be relied on as the primary defense against large animals.
That said, guards can still play an important role.
How Critter Guards Help Indirectly With Larger Animals

Even though they are not raccoon-proof barriers, critter guards help by:
- eliminating food sources created by nesting birds or rodents
- reducing smells that attract predators
- removing sheltered spaces that smaller animals occupy
- limiting damage that could create larger entry points
When smaller critters are kept out, raccoons are far less likely to linger on a roof. This connection is often overlooked and is discussed further in Why Solar Panels Are at Risk of Critter Damage (And How to Prevent It).
What to Do If You Suspect Raccoon Activity
If raccoons are already visiting your roof, critter guards alone are not enough.
Massachusetts wildlife laws require humane handling of raccoons. Homeowners:
- cannot trap or relocate raccoons without following state regulations
- should avoid disturbing active dens
- must use prevention-focused solutions
In these cases, a combination of:
- professional wildlife exclusion
- roofline reinforcement
- sealed access points
- and critter guard installation in Massachusetts
is often the safest approach.
Common Signs Raccoons Are the Issue
Raccoon-related problems look different from squirrel or bird activity.
Signs include:
- loud nighttime movement
- displaced roof shingles
- damaged soffits or vents
- repeated roof access despite deterrents
If smaller animals are involved, the warning signs tend to match those covered in Top Signs You Need a Critter Guard for Your Solar Panels.
Why Critter Guards Are Still Important
Even in raccoon-prone areas, critter guards remain essential because they:
- prevent secondary damage from smaller wildlife
- protect wiring and airflow
- reduce fire risk from nesting debris
- support compliance with Massachusetts wildlife guidelines
They are a core part of solar system protection, even when additional measures are needed for larger animals.
Conclusion: Guards Protect Panels, Not Wrestle Raccoons
Critter guards are highly effective at stopping squirrels, birds, and other small animals from damaging solar panels. While they are not designed to physically block raccoons, they play a critical role in reducing the conditions that attract larger wildlife in the first place.
For homeowners exploring critter guard for solar panels in Massachusetts or planning critter guard solar in Massachusetts, professional guidance can help determine the right combination of protection for your property.
Contact Critter Solar Guards today to protect your solar system from the wildlife most likely to cause damage.





