Of all rodents, rats are universally disliked. Unlike mice or chipmunks, rats have the worst reputation for good reasons. They are destructive and carry parasites and diseases that can be passed on to people and pets. When you hear a rat on the roof, it’s time to spring into action quickly, as these multiply fast.

Roof rats in the attic fit into tight spaces, entering attics through vulnerable gaps in the roof and soffits. They love attics because they are dark, warm, and mostly undisturbed places. Within a home, they have a reliable source of food and water, are out of bad weather, and can safely create a nest in which to raise their babies.

Despite remaining out of sight and avoiding contact with humans, rats still leave signs indicating their presence within the home.

Signs of Roof Rats in Your Attic

Some signs that you have roof rats in the attic are more readily apparent than others. Here’s what to look out for:

  • Scurrying or scratching sounds coming from your attic at night.
  • Roof rat droppings not only in your attic but on kitchen counters, in your pantry, or along baseboards where rats travel from the attic to access food and water.
  • Gnaw marks on wood beams, wires, and other structural objects.
  • Greasy smudges along baseboards or walls where roof rats navigate from one area to another.
  • A musty odor made by rat urine. Rats urinate often and everywhere.
  • Finding torn insulation, cardboard, and other materials used to build their nest.
  • Seeing an actual rat either in your attic or as it is traveling.

Roof Rat Droppings

Like many rodents, roof rat droppings look like small, dark capsules with tapered edges scattered wherever these rodents have traveled. They will most likely be found near nesting sites, food sources, and along their pathways. If you have roof rats in the attic, check for an accumulation of roof rat poop in dark corners, on insulation, and on the tops of beams and boxes of stored items.

Roof Rat Nests

Roof rats build nests that serve as a place for them to sleep, give birth, leave babies while they are out scavenging food, and as a place to store the scavenged food.

Nests look much like woven balls and look similar to bird nests. They use whatever soft materials they can find. In an attic, they are often made from shreds of insulation, torn-up paper, cardboard, and cloth.

Roof rats look for warm, secluded spots to build and maintain their nests. You’ll often find them in a corner of the attic or up on a rafter.

Roof Rat Sounds

As roof rats are nocturnal, you’re probably most likely to hear sounds at night that include:

  • Roof rats make high-pitched chirps and squeaks to communicate with other rats or when they feel threatened.
  • Scurrying and scratching noises as their feet move along surfaces such as floors and rafters or when they are building their nest. Even though these sounds are soft, they can be heard at night when all is still.
  • Roof rats gnaw at wood and wires to maintain their teeth. Because rat teeth continue to grow throughout their lives, they need to gnaw to keep them at a manageable length.
  • If they are tearing insulation and pieces of cardboard when building their nest and when they are in your drawers or pantry, you may hear the sound of objects moving as they rustle through things.

Why Roof Rats Are Harmful

Roof rats can pose serious threats to both your property and health. The level of property damage depends on the size and extent of the infestation, and homeowners who suspect an infestation should take action quickly to limit the threats roof rats pose.

Health Issues

Roof rats carry both parasites and diseases that can be transmitted to you and your family through their feces, urine, nesting materials, and the contamination of food. Parasites include ticks, fleas, and mites. The Centers for Disease Control lists about a dozen diseases that can be contracted from roof rats, including Hantavirus, Leptospirosis, Typhus, and Monkeypox.

Property Damage

Roof rats can cause serious and costly damage to rafters, insulation, wiring, and more. And the damage increases exponentially as they reproduce and grow in numbers. The damage they cause to wiring can also be a fire hazard.

Damage caused by roof rats can also decrease the value of your home, leaving a homeowner with costly repairs to attract buyers. It’s especially important to clear up any sanitation issues caused by a previous infestation.

How Roof Rats Got Into the Attic

Roof rats got their name from their ability to climb and live in elevated areas such as trees and vine-covered fences. Their long tail provides them with supreme balance skills, and they can easily walk across utility lines and tree limbs to hop onto rooftops. Once there, they take advantage of any gaps or worn areas where they can chew their way inside.

What to Do if Rats Are in the Attic

Because roof rats are so destructive and reproduce quickly, it is best to call a professional rat removal service. It is the one sure way to know that the entire infestation has been removed.

Critter Control’s rat removal service is ideal because, in addition to your free inspection, their services include removal, exclusion, and damage repair. Recognized as an industry leader, their technicians are expertly trained in getting and keeping rats out. Call (800) 274-8837 to schedule your free inspection.

How Critter Control Performs Attic Remediation

Our experienced team at Critter Control provides professional attic remediation services after rodent infestations to restore your attic to its clean, rodent-free state. This process includes:

Inspection

First, we thoroughly check your attic to determine:

  • Rodent activity.
  • The extent of damage from animals to insulation, wiring, or wood.
  • Potential entry points rodents may use to enter the attic.

This gives our team a better idea of what we’re dealing with, ensuring we can effectively address all problems before beginning remediation.

Clean Up

Rodent infestations leave behind contaminated materials that must be carefully removed. Our cleanup process includes:

  • Safely disposing of nesting materials and rodent droppings.
  • Using specialized sanitizers, such as industrial-grade disinfectants, to disinfect the area.
  • Eliminating harmful bacteria and odors to make your attic a safe environment once more.

Remove and Replace Insulation

Your uninvited attic guests may damage insulation during their stay, nesting in it and contaminating it with urine and droppings. During our inspection, we’ll evaluate the insulation and replace it if necessary. Generally, we recommend replacement when:

  • Areas are heavily contaminated with rodent waste.
  • Insulation has suffered significant water damage.
  • Insulation is old and no longer effective.
  • There are signs of mold or mildew growth.

We can help prepare insurance bids for insulation replacement to ensure a seamless transition. We work with most major insurance companies to ease the financial burden.

TAP Pest Control Insulation

As part of the remediation process, we offer Thermal Acoustical Pest (TAP) Control Insulation. This is a specialized insulation that offers multiple advantages over run-of-the-mill insulation, including:

  • Pest resistance: TAP insulation is infused with boric acid, which deters insects and other pests.
  • Energy efficiency: It helps with temperature regulation, adding a layer of insulating protection that reduces heating and cooling costs.
  • Noise reduction: TAP insulation offers superior soundproofing compared to traditional insulation, helping keep your home quieter and more comfortable.

We install TAP insulation to provide long-term protection against future infestations while improving energy efficiency and reducing noise.

Seal Entry Points

Preventing future rodent infestations requires sealing all entry points. Since rodents can squeeze through incredibly small spaces, we use various materials depending on the size of the opening:

  • For small gaps: Steel wool, mesh, or caulk
  • For larger holes: Cement, metal, or hardware cloth

These materials serve as rodent deterrents, effectively preventing the critters from squeezing through. We choose the most appropriate material based on the location and size of the gap to ensure long-term protection against uninvited creatures.

Contact Critter Control Today

If you suspect you have a rodent infestation or need help getting rid of one, our experienced team at Critter Control is here to help. We’re experts in safely and humanely eliminating pest infestations, including rodent infestations, in attics. After eliminating the problem, we won’t leave your attic in shambles—we’re experts in attic remediation, too.

We will clean and re-insulate your attic to restore it to its former safe, clean, and insulated state, sealing entry points to prevent the problem from recurring. So, if you’re wondering how to get rid of rodents in the attic or need attic remediation after an infestation, you can trust us to get the job done right the first time.

Call Critter Control today to schedule an appointment with the best rodent control service near you, and restore your attic to its best state. Start with a personalized quote for your rodent removal and attic remediation services.

How to Keep Roof Rats Out of the Attic

Keeping roof rats out of your attic requires diligence and putting preventive measures into place. Here are some things you can do to minimize your exposure and lessen the chances of an infestation:

  • Monitor your home and yard for signs of rodent activity, such as droppings, gnaw marks, and strange noises coming from the attic.
  • Keep the trees, vines, and shrubs around your home trimmed so as not to provide easy access for rats on the roof. Some people install tree guards to prevent them from climbing onto your roof from the trees nearest to your house.
  • Store firewood and lumber at least 100 feet away from your home.
  • Keep your yard free from natural debris and stored items to eliminate hiding spots and nesting areas.
  • Keep your roof, eaves, and soffits in good condition. Add mesh or covers to vents. Seal cracks and gaps with caulk or metal flashing. Make sure there are seals where utilities enter your home.

When you have your free inspection, ask your Critter Control technician about exclusion services that can help you guard against roof rats entering your home. Critter Control will develop a plan specific to your property for deterring an infestation.

Since roof rats are smaller than other rat species and are active while you are asleep, their presence can unfortunately go unnoticed. That’s why exclusion is an essential and proactive pest management strategy for preventing another infestation from occurring.

Get them out.
Keep them out.®

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Sara James profile picture
Sara James
30 October 2026
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Sam did a ton of work on our house when we bought it as a preventative measure against any pests, as the house was not new. We wanted to be sure no mice, bats or other pests could get in. He did all our critter control at our prior house in 2022 so we had him pest proof our next house in 2026. He is the kindest man, knowledgeable and efficient. 100% recommend. You’re buying pest control and peace of mind.
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Peggy Protko
30 October 2026
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I was concerned that there might be squirrels in my attic. Alex did a complete and thorough inspection of the residential premises, and I am happy to report that he found no such evidence. Alex’s service was very thorough and professional, as well as honest. I would not hesitate to recommend your services to others.
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Don Hemmer profile picture
Don Hemmer
30 October 2026
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We interviewed 3 companies to evict the squirrels from our attic. Critter Control was, by far, the least expensive. Their promptness and attention to detail was A+. Brandon from Critter Control provided daily reports about the process. Brandon was the star of the show but we enjoyed working with everyone from Critter Control. Thanks Don and Julie
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Adrienne Numbers
30 October 2026
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Josh was awesome! We had a critter stuck in our fireplace, and he took his time figuring out the best way to handle the situation. He was creative with his solutions, explained what he was going to do, and made sure we understood the process. He was also just a genuinely great person to work with! As a new homeowner, it was nice to have someone who was patient, knowledgeable, and willing to take the time to get the job done right. He never made us feel rushed, and you could tell he really cared about helping us. Critter Control, you have a great employee in Josh! I hope he gets the recognition he deserves because he did an amazing job. I would absolutely recommend Critter Control, and if we ever have another issue, I will definitely be asking for Josh again!
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Shirley Johnson
30 October 2026
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Gave me back "sweet, peace of mind being in my home.
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Katie Coomes
29 October 2026
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Critter Control was very responsive, thorough and finished everything quickly. I appreciate the work of Justin and Steven!
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T James profile picture
T James
29 October 2026
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We had a great experience with Luis who helped repair multiple woodpecker holes on our house. He was thorough and professional. Highly recommends him.
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Susanne Abrams profile picture
Susanne Abrams
29 October 2026
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Critter Control helped so much with a very difficult pest situation. Throughout the time period , they expertly communicated and scheduled daily service when necessary to get this problem under control. I am so grateful for their kindness and understanding to our specific needs. I will definitely continue to call on them in the future and recommend them to others who are experiencing critter problems.
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Nancy Pippenger
29 October 2026
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Nice job....very personable installers. Answered all my questions!
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Bobby Cox profile picture
Bobby Cox
29 October 2026
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Ashton was a great communicator, quick with his work and very courteous.
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