How to Know If You Have a Rat Nest in Your Attic

LaJaunie's Pest Control By: LaJaunie's Pest Control Calendar Icon August 11, 2025
Schedule my service
⏰ Call for same-day service

In Louisiana, finding a rat nest in the attic is more common than you might think, especially if you live in areas like New Orleans, Thibodaux, or Houma. The warm climate and easy entry points around eaves, vents, and crawl spaces make it easy for roof rats and Norway rats to move in.

If you suspect rats in your attic, act quickly. Rats don’t just make noise; they damage property, spread disease, and make your attic unsafe.

Here’s how to spot a rat infestation, and what to do next.

Key Takeaways

• Louisiana attics often attract roof rats and Norway rats, especially in cities like New Orleans.

• Droppings, gnaw marks, and scurrying sounds are early signs of a rat problem.

• Rats use nesting materials like insulation, cardboard, and even pet food bags to build nests.

• Professional rodent control is the safest and most effective way to get rid of rats long-term.

What a Rat Nest Looks Like

A rat nest is usually a pile of shredded nesting materials hidden in insulation or dark corners. They use materials such as paper, cardboard, fabric, or even chewed-up electrical wires.

Rat droppings, which are small, black, and capsule-shaped, often surround the nest. If you notice clusters of these around insulation or joists, you’ve likely got a nest nearby.

Signs of a Rat Infestation

Signs Of A Rat Infestation

You don’t need to see a rat to know it’s there. Watch for these signs of rats in your attic:

1. Scurrying sounds at night

Rats are nocturnal. If you hear scurrying overhead while you’re trying to sleep, they’re likely moving through beams and insulation.

2. Droppings and urine smell

Rat droppings and urine are often your first clue. Rats urinate frequently, creating a strong ammonia smell. Watch for droppings along attic beams and around storage areas.

3. Gnaw marks and chewed wires

Rats chew on things constantly to wear down their teeth. That leads to gnaw marks on wood, ductwork, boxes, and even electrical wires, which can start fires.

4. Nesting materials and small holes

If you see shredded fabric or insulation in odd spots, especially near small holes, you might have a nesting site. Check around eaves, attic corners, and between walls.

5. Entry points around your home

Common access points for rats include crawl spaces, vent openings, broken siding, and gaps around pipes. Seal entry points with caulk, steel wool, or wire mesh to block their path.

Why Rats Are a Problem in Louisiana

The combination of humidity, warmth, and plenty of food sources makes Louisiana a perfect habitat for rats. You may not notice attic nests until they cause damage or create odors.

Local homeowners face unique challenges in getting rid of rats, as they can enter from above, Norway rats burrow in from below, and both types can:

• Spread disease through feces and urine (including hantavirus and leptospirosis).

• Bring in other critters like fleas.

• Chew insulation, wiring, and wood framing.

• Create costly property damage.

DIY Rat Control Tips

Here’s what you can do while waiting for a professional:

• Seal entry points using caulk and steel wool.

• Set snap traps and bait stations near travel paths and nests.

• Store pet food in metal containers with tight lids.

• Avoid leaving food waste or clutter that could serve as food sources.

For anyone considering DIY methods, keep in mind that if you don’t fully seal and check again, rats will come back.

Why You Need Professional Rodent Control

At LaJaunie’s Pest Control, we specialize in rat removal and rodent control across Southern Louisiana. Whether it’s roof rats in the attic or Norway rats under your house, we know what works.

Our licensed exterminators:

• Identify and close all entry points.

• Use humane and strategic rat traps and bait stations.

• Sanitize contaminated insulation and attic spaces.

• Offer ongoing pest control to keep your home pest-free.

Not sure if it’s rats? We’ll take a look. From the first inspection to complete attic cleanup, we’ve got you covered. Give us a call, we’re local, fast, and ready to help.

FAQs

What’s the most effective way to get rid of rats in the attic?

Combining snap traps, bait stations, and sealing entry points is the most effective DIY method. But for stubborn cases, professional rat control offers complete attic sanitation and exclusion.

What time of year are rats most active in Louisiana?

Rats are active year-round in Louisiana due to the warm climate, but activity often spikes in fall and winter as they seek shelter indoors.

Can I remove rats on my own?

Some DIY traps may work for minor problems, but nests often go deeper. It’s best to call a pest control company for a thorough inspection and safe, long-term solution.

Get your free quote!

985-859-7378

Form Single Post Blog

❤️ You’re supporting a small, local business
Name(Required)

Current response time ~5 minutes during 
business hours︎

Author image

Written By: LaJaunie's Pest Control

Ian Chi is the President and CEO of Simple Pest Management, dedicated to providing families with effective, customer-focused pest control. Based in San Diego, Ian leads a team that prioritizes community bonds and a positive workplace, ensuring homes remain safe and pest-free. With a mission centered on family well-being, Ian believes that "the answer is Simple" for all pest issues.

LaJaunie's Pest Control is a local family-owned business

Serving Louisiana homeowners for over 15 years

Louisiana is our home, and our customers are our neighbors. We were founded in Thibodaux, Louisiana, by Jared and Skye LaJaunie in 2008. We'd love to make you a part of the LaJaunie's Pest Control family. Contact us today to get started.

Make Your Home Pest Free
⏰ Same-Day Service Available*
Get Service Today!