How to Deal with a Spider Infestation in Your Attic or Basement

Killo Exterminating Co., Inc. • September 18, 2025

Spiders are one of the most common household pests, and while they play a beneficial role in controlling other insects, their presence in large numbers can become a significant concern for homeowners. Attics and basements, being secluded and less frequently visited areas, are particularly vulnerable to spider infestations. These spaces often provide the quiet, undisturbed environment that spiders seek when establishing webs and laying eggs. Addressing a spider infestation in your attic or basement requires a combination of identification, removal, prevention, and in many cases, professional pest control services.

Understanding Why Spiders Choose Attics and Basements

Spiders are attracted to environments that offer food, shelter, and moisture. Attics and basements naturally meet many of these conditions. These areas are often dark, have limited foot traffic, and contain clutter that provides ideal hiding places. Cardboard boxes, storage bins, and insulation materials give spiders places to hide and create webs.

Basements, in particular, can also be damp, attracting a wide range of other insects such as ants, flies, and silverfish. These insects serve as prey for spiders. Once food sources become available, spiders are more likely to take up residence and reproduce.

Signs of a Spider Infestation

Spider infestations may not always be obvious at first. Many homeowners dismiss the occasional web or spider as harmless. However, when multiple signs appear together, they could indicate an active infestation. Key signs include:

Numerous spider webs, especially in corners, beams, and storage areas
Egg sacs attached to walls, ceilings, or objects
An increased presence of other insects, which serve as spider food
Frequent spider sightings, especially of larger or more aggressive species

Recognizing these indicators early allows for faster and more effective intervention.

Common Types of Spiders Found in Attics and Basements

While most spiders are harmless, certain species may pose a risk to humans. In the southeastern United States, homeowners may encounter:

House Spiders
These are the most common species found indoors. They build irregular webs in undisturbed corners and are usually not dangerous.

Wolf Spiders
Unlike other spiders, wolf spiders do not build webs. They roam in search of prey. They are fast and intimidating but typically non-aggressive.

Cellar Spiders
Also known as daddy longlegs, these spiders prefer damp areas and are often found in basements. They are not harmful to humans.

Black Widow Spiders
Easily identified by their shiny black body and red hourglass marking, black widow spiders are venomous and prefer dark, secluded spaces. They are more commonly found in basements, crawl spaces, and garages.

Correct identification is essential for determining the severity of the infestation and the appropriate response.

Steps to Remove a Spider Infestation

Dealing with a spider infestation involves more than just removing individual spiders. Effective control includes eliminating their food source, disrupting their habitat, and ensuring they do not return. Below are the recommended steps:

Step 1: Remove Webs and Egg Sacs

Use a broom or vacuum to remove webs and any visible egg sacs. This not only reduces the current population but also discourages new spiders from occupying the same areas. When using a vacuum, dispose of the contents immediately in a sealed plastic bag.

Step 2: Eliminate Other Insects

Spiders follow their prey. If your attic or basement contains other insect infestations, such as flies, ants, or cockroaches, it is important to address these as part of your spider control strategy. A reduction in available food will force spiders to relocate or perish.

Step 3: Declutter and Deep Clean

Spiders prefer to hide in dark, cluttered environments. Remove unnecessary storage, clean behind boxes, and reduce the number of cardboard containers, which can absorb moisture and attract insects. Consider switching to sealed plastic bins for storage.

Step 4: Control Moisture

Moisture control is especially important in basements. Use dehumidifiers and ensure there is proper ventilation. Repair any plumbing leaks and check for signs of water intrusion around windows and foundation walls.

Step 5: Seal Entry Points

Inspect your home for cracks and gaps around windows, doors, vents, and foundations. Seal these openings with caulk or weatherstripping to prevent spiders from entering. Attics should have screens over vents, and any loose siding should be secured.

Long-Term Spider Prevention

Preventing future infestations requires ongoing effort and maintenance. The following practices can reduce the likelihood of spiders returning:

Keep attics and basements well-lit and ventilated
Store items off the floor and away from walls
Regularly inspect for signs of insect activity
Trim vegetation away from your home’s exterior
Avoid leaving exterior lights on unnecessarily, as they attract insects that spiders feed on

Conducting seasonal inspections and addressing any issues promptly will help maintain a spider-free environment.

When to Call a Professional Exterminator

While some homeowners may be able to manage minor infestations on their own, professional intervention is often necessary in the following cases:

The presence of venomous spiders such as the black widow
Recurrent infestations despite cleaning and sealing efforts
Concerns about health and safety for family members or pets
A general desire for peace of mind and long-term prevention

Killo Exterminating Co., Inc. offers comprehensive pest control solutions tailored to your home’s unique needs. Our experienced technicians are trained to identify spider species, locate nesting sites, and apply safe and effective treatments to remove the infestation completely. We also offer ongoing maintenance services to ensure your home remains pest-free throughout the year.

Why Choose Killo Exterminating Co., Inc.

With decades of experience serving homeowners in North Carolina and beyond, Killo Exterminating Co., Inc. combines expert knowledge with exceptional customer service. We understand the distress a spider infestation can cause, and we work efficiently to restore comfort and safety to your home.

Our services include:

Detailed pest inspections
Environmentally responsible treatments
Ongoing pest management plans

Customer satisfaction and safety are our top priorities. We take the time to assess your property, explain your options, and deliver results you can trust.

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How to Get Rid of Rats from Your Yard and Prevent Them from Returning

By Killon Exterminating Co., Inc. • September 8, 2025

Rats are one of the most persistent and destructive pests that can invade outdoor spaces. They are highly adaptable, reproduce rapidly, and are capable of causing significant damage to gardens, property structures, and even personal health. If left uncontrolled, a rat infestation can grow quickly and become far more challenging to address. The key to successful rat control is to remove existing rodents and then implement measures that make your yard unappealing to them in the future. At Killo Exterminating Co., Inc., we have decades of experience helping homeowners and businesses protect their property from pests. Understanding the Risks of Rats in Your Yard Rats are not only a nuisance but also a health hazard. They can carry numerous diseases that pose risks to humans and pets, such as leptospirosis, salmonella, and rat-bite fever. In addition to health threats, rats can cause structural damage by chewing through wood, wires, and even soft metals. They also dig burrows that weaken soil stability around gardens, patios, and building foundations. Identifying Signs of Rat Activity Before taking steps to eliminate rats, it is important to confirm their presence. Common signs of rat activity include: Droppings Rat droppings are dark, pellet-shaped, and typically found along walls, near food sources, or in sheltered corners of your yard. Burrows Norway rats in particular dig burrows in soil, under decks, or along foundations. Fresh burrows often have a smooth entrance with loose dirt scattered nearby. Gnaw Marks Rats gnaw on wood, plastic containers, and even outdoor furniture to keep their teeth from overgrowing. Grease Marks Rats often follow the same paths repeatedly, leaving greasy smears on surfaces where their fur brushes against walls or objects. Noises at Night Scratching or scurrying sounds in sheds, under decks, or in walls can indicate rat activity. Once you have confirmed the presence of rats, you can begin targeted removal efforts. Removing Rats from Your Yard Rats are intelligent and cautious, so effective removal requires a methodical approach. 1. Remove Food Sources Rats are attracted to readily available food. Common food sources in yards include pet food left outside, bird seed from feeders, fallen fruit from trees, and unsecured garbage. To reduce food availability: Store garbage in sealed metal or heavy-duty plastic bins with tight-fitting lids. Clean up fallen fruit promptly. Avoid feeding pets outdoors. Use bird feeders with seed catchers to prevent excess spillage. 2. Remove Water Sources Rats require water to survive, and even small amounts can sustain them. Eliminate or reduce standing water by: Fixing leaky outdoor faucets. Emptying bird baths regularly or using models with running water features. Ensuring proper drainage in low-lying areas. 3. Eliminate Hiding Places Rats seek shelter in clutter, overgrown vegetation, and debris piles. Keep your yard well-maintained by: Trimming shrubs and grass regularly. Storing firewood at least twelve inches off the ground and away from buildings. Removing unused equipment or stacked materials where rats could nest. 4. Use Traps Trapping is a safe and effective way to reduce rat populations. Snap traps are commonly used because they kill rats quickly and humanely. Place traps along walls, near burrows, or in areas where droppings are found. Always handle traps carefully and keep them out of reach of pets and children. 5. Professional Rodent Control Services While do-it-yourself methods can help in mild cases, a significant infestation requires professional intervention. At Killo Exterminating Co., Inc., we use baiting programs and exclusion techniques to remove rats efficiently while ensuring safety for your family and pets. Preventing Rats from Returning Once the current infestation is addressed, prevention becomes your primary goal. Rats are opportunistic, so a clean and well-maintained yard makes them less likely to return. 1. Seal Entry Points to Your Home and Outbuildings Even if rats are currently only in your yard, they can easily move indoors. Inspect the exterior of your home and outbuildings for gaps or cracks larger than one quarter of an inch. Seal these with steel wool and caulk, or use hardware cloth for larger openings. Pay special attention to: Gaps around pipes and utility lines Spaces under doors without proper sweeps Openings in vents or crawl spaces 2. Maintain Landscaping Dense vegetation provides shelter and travel paths for rats. Keep grass trimmed and remove any low-hanging tree branches that provide easy access to roofs or attics. Avoid planting thick ground cover directly against building foundations. 3. Keep Waste Secure A consistent waste management routine is crucial. Use bins with lids that lock or clamp shut, and place them on a stable surface to prevent tipping. If possible, store garbage bins indoors until collection day. 4. Monitor Regularly Even after taking preventive steps, it is important to keep an eye out for early signs of rats. Conduct regular inspections of your property, paying attention to areas near fences, sheds, and compost piles. The sooner you detect rat activity, the easier it is to control. Why Professional Help is Often the Best Option Rats are intelligent, adaptable, and capable of avoiding poorly placed traps or ineffective deterrents. A small population can quickly grow, as rats can reproduce every few weeks. Professional exterminators bring specialized knowledge, tools, and products that are not available to the general public. At Killo Exterminating Co., Inc., we use integrated pest management strategies that address the root causes of infestations rather than just treating the symptoms. This approach combines targeted trapping and preventive measures to deliver long-term results. Health and Safety Considerations When dealing with rats, it is essential to protect your health. Always wear gloves when handling traps or cleaning areas where rats have been active. Avoid sweeping or vacuuming droppings, as this can release harmful particles into the air. Instead, use disinfectants to wet contaminated areas before carefully cleaning them. Dispose of dead rodents according to local guidelines to avoid spreading disease. The Long-Term Benefits of a Rat-Free Yard Eliminating rats from your yard does more than protect your garden and property. It creates a safer and healthier environment for your family, pets, and guests. Without rats, you reduce the risk of property damage, avoid costly repairs, and maintain a more pleasant outdoor space. By following the steps outlined above and working with trusted professionals like Killo Exterminating Co., Inc., you can achieve long-term control and prevent future infestations.