Do You Need Critter Guards for Your Solar Panels? If So, When?

When it comes to protecting your solar investment, one small accessory can save you thousands in repairs: critter guards. While some solar installers may brush off the need for them, real-world experiences from solar panel owners show just how devastating squirrels, rodents, and birds can be if they get under your panels. In this article, we’ll break down why critter guards matter, when to install them, and what could go wrong if you skip them—all in the words of the people who have lived through it.

Why You Want Critter Guards

Critter guards are designed to prevent animals from nesting or hiding under your solar panels. Without them, homeowners have reported costly damage:

• Squirrels chewing through wiring, causing system failures or ground faults.
  
  

• Birds, especially pigeons, nesting and creating unsanitary conditions.
  
  

• Debris buildup such as leaves under panels, which can be a fire hazard.
  
  

According to Reddit users, the cost of repairs after critter damage can reach thousands of dollars. One user reported replacing 10 panels after squirrel damage—and even the roof needed repair. Another described a neighbor who had to hire a professional to clean up pigeon nests and then install guards. Meanwhile, the cost of quality critter guards, whether self-installed or professionally installed, typically ranges from $1,000–$2,000, a small fraction of what animal or debris damage could cost.

“I got it after replacing 10 panels that were destroyed by squirrels. They also destroyed the roof. Absolutely 100% get it.”

When Should You Install Critter Guards?

Timing is critical to avoid critter problems:

• At installation: The best time to install critter guards is right when your solar panels are being installed. This ensures that no gaps exist for animals to slip under the panels.
  
  

• Soon after installation: If you didn’t get them at first, install them immediately. Reddit users have noted that critters often move in within weeks of new panels going up.
  
  

• Seasonal considerations: Fall is a peak time for animals seeking winter shelter. Birds, squirrels, and other rodents may target your panels as a cozy, protected space.
  
  

Owners with overgrown trees or frequent wildlife activity are at particularly high risk. Even if your roof seems inaccessible, squirrels can climb walls, birds can fly in, and rodents can jump. If you’ve ever heard noises on your roof, you definitely want critter guards in place.

Types of Critters and Damage They Cause

Different animals pose different risks:

• Squirrels and rodents: Chew through wires and cables, potentially causing ground faults or panel failure. Squirrels have even been reported causing panels to “blow up.”
  
  

• Birds (pigeons, sparrows, etc.): Nesting can create unsanitary messes, foul odors, and additional fire hazards. One Reddit user described having to remove eight dead birds after a nesting incident.
  
  

• General debris: Leaves and other debris can accumulate under panels, mimicking the hazards of clogged gutters.
  
  

Homeowners repeatedly report that skipping critter guards is a gamble that often ends in repair costs well over $2,000, making critter guards a small investment to protect your larger solar system.

“Most experienced solar panel owners on Reddit are saying they would not recommend installing solar panels without it!”

Quality Matters: Don’t Settle for Cheap Guards

Not all critter guards are created equal. If your installer offers a very low-cost option, ask what materials they’re using. Poor-quality guards can leave gaps, creating a “new critter home” instead of preventing one. High-quality guards like Rotak are built to last and provide true protection for your investment.

Some solar pros may have mixed reactions when you ask about critter guards—they may see it as extra work or expense. That’s why it’s important to do your own research and weigh your risks, because the consequences of skipping critter guards can be devastating for your solar system.

“I own a solar company. We install critter guards + skirts on every job. If a customer elects not to get them, we have them sign a waiver agreeing they understand the risks.”

Closing Argument: Protect Your Investment

Critter guards are more than a convenience—they’re a necessary insurance policy for your solar panels. They prevent animal damage, reduce repair costs, and avoid fire hazards from debris accumulation. Whether professionally installed or self-installed, investing $1,000–$2,000 upfront can save you tens of thousands in long-term damages. Don’t wait until you hear squirrels chewing above your bedroom or pigeons roosting under your arrays.

Protect your investment. It’s a small price for peace of mind.

Quick FAQ

Q: Can I install critter guards myself?

A: Yes, many homeowners install them themselves, though professional installation ensures no gaps or missed areas.

Q: How much do professional installations cost?

A: Typically $1,000–$2,000, though some reports go up to $3,000 for large arrays.

Q: When is the best time to install?

A: Ideally at the time of solar panel installation. Fall is particularly critical because critters are seeking winter shelter.

Q: Which animals do critter guards protect against?

A: Squirrels, rodents, pigeons, and other nesting birds. They also help prevent damage from leaves and debris.

Q: Are cheap critter guards effective?

A: Not always. Ask about materials—poor quality guards can leave gaps and may not last as long as high-quality options like Rotak.

Q: What if my installer says I don’t need them?

A: They may be downplaying the risk to avoid extra work. Check Reddit experiences and weigh the potential cost of repairs—most experienced solar owners strongly recommend them.