The Top Fall Pests in Denver and How to Keep Them Out

As the crisp autumn air settles in and leaves start to change colors, many homeowners in Denver find themselves facing a common challenge – fall pests. At CO Pest Pros, your trusted pest control partner in Lakewood and Colorado Springs, we understand the importance of maintaining a pest-free environment year-round. In this article, we’ll delve into the top fall pests that can infiltrate your home and share valuable insights on how to effectively keep them at bay. Don’t let pests ruin the beauty of the season; let’s explore how you can safeguard your home and family.

Autumn’s Unwelcome Guests

As temperatures drop and outdoor conditions become less hospitable, various pests seek refuge indoors. Here are the most common fall pests you may encounter in Denver:

Rodents (Mice and Rats)

Rodents are opportunistic creatures that can slip through tiny openings in search of warmth and sustenance. These pests can cause extensive damage to property by gnawing on wires, insulation, and wood. Beyond structural harm, rodents pose health risks by spreading diseases through their droppings.


While most spiders are harmless, some species can deliver painful bites. They often seek shelter indoors as the weather cools. Keeping your living spaces spider-free not only prevents potential bites but also maintains a clean and welcoming environment.


Ants are persistent scavengers that can infiltrate your home in search of food and water. Once they establish a trail, they can be difficult to eliminate. Certain ant species can also contaminate food supplies and compromise hygiene.


Cockroaches thrive in warm, humid conditions, and fall provides an opportunity for them to seek refuge indoors. These pests can trigger allergies and exacerbate respiratory issues. Additionally, they carry bacteria that can lead to food contamination.

Stink Bugs

Stink bugs, notorious for their unpleasant odor when squashed, can infiltrate homes through small openings. While they don’t pose significant health risks, their presence can become a nuisance and disrupt your peace of mind.

The Need for Proactive Pest Control

The intrusion of these fall pests can result in property damage, health concerns, and overall discomfort. Taking proactive measures to prevent their entry is crucial to maintaining a harmonious living environment during the fall season. In the following sections, we’ll delve into practical steps you can take to pest-proof your home effectively.

Pest-Proofing Your Home

To fortify your home against fall pests, it’s essential to focus on both the exterior and interior. Here’s how you can create a barrier that deters pests from invading your living spaces:

Exterior Preparations

  1. Seal Cracks and Gaps: Inspect the foundation, walls, and entry points for any openings that pests could use to gain access. Seal these cracks and gaps with caulk or weather-stripping to create a tight seal.
  2. Inspect and Repair Window Screens: Ensure that window screens are intact and free from tears or holes. Repair or replace damaged screens to prevent pests from entering through windows.
  3. Trim Vegetation: Trim back bushes, trees, and other vegetation that may be in close proximity to your home’s exterior. Overhanging branches and plants can serve as bridges for pests to access your home.

Interior Preparations

  • Store Food Securely: Keep food items stored in airtight containers to deny pests a readily available food source. Proper food storage reduces the attraction of pests like rodents and ants.
  • Maintain Cleanliness: Regularly clean living spaces and minimize clutter. Crumbs, spills, and debris can attract pests and provide hiding spots.
  • Vacuum and Sweep: Implement a routine of frequent vacuuming and sweeping to eliminate crumbs and potential nesting sites.

Proper Garbage Management

  • Sealed Trash Cans: Use trash cans with tight-fitting lids to prevent pests from accessing waste. This is particularly important for deterring rodents and flies.
  • Regular Disposal: Empty trash cans regularly, especially those containing food waste. Avoid leaving trash bags sitting around for extended periods.
  • Compost Carefully: If you compost, ensure your compost container is securely sealed and placed away from the house. Decomposing organic matter can attract pests.

Professional Pest Control Services

Expert Assistance for Comprehensive Protection

At CO Pest Pros, our seasoned professionals offer specialized pest control services designed to combat fall infestations effectively. Here’s why seeking expert assistance is a smart choice:

  1. Expertise and Experience: Our team possesses in-depth knowledge of local pest behavior and the best practices for pest control.
  2. Customized Treatment Plans: We assess your specific pest concerns and tailor treatment plans to address your home’s unique needs.
  3. Safe and Effective Methods: CO Pest Pros employs environmentally friendly and humane pest control methods to ensure the safety of your family and pets.
  4. Specialized Fall Pest Control Services:
    1. Rodent Exclusion and Baiting: We employ strategic exclusion techniques to keep rodents out and use targeted baiting to eliminate existing infestations.
    2.  Exterior Perimeter Treatment: Our experts apply barrier treatments around your home’s exterior to deter pests from entering.
    3. Crack and Crevice Sealing: We identify and seal potential entry points to prevent pests from finding their way indoors.

Prevention Tips for Specific Pests

Targeted Strategies for Pest-Free Living

Now that you’re armed with valuable insights into the common fall pests in Denver, it’s time to take proactive steps to prevent their intrusion. Let’s explore practical prevention tips for each pest:


  • Secure food storage in airtight containers.
  • Seal entry points using steel wool or caulk.
  • Strategically place traps in areas with rodent activity.


  • Regularly dust and vacuum to eliminate webs and hiding spots.
  • Use yellow bulbs for outdoor lighting to reduce spider attraction.
  • Promptly remove any spider sightings.


  • Wipe down surfaces to remove crumbs and spills promptly.
  • Seal entry points and repair gaps in windows and doors.
  • Employ natural deterrents like vinegar and essential oils.


  • Fix plumbing leaks to eliminate moisture sources.
  • Keep kitchen appliances and counters clean and dry.
  • Seal cracks and crevices where cockroaches may hide.

Stink Bugs

  • Seal gaps around windows, doors, and vents.
  • Install screens on openings to prevent entry.
  • Consider using exterior treatments to discourage stink bugs.

In the grand tapestry of fall, the last thing you want is an unwelcome pest disrupting the harmony of the season. As the leaves fall and temperatures drop, pests are on the move, seeking refuge within the confines of your home. However, armed with the knowledge and strategies shared in this article, you can take a proactive stance and ensure that your home remains a sanctuary, free from the intrusion of fall pests.

At CO Pest Pros, we’re more than a pest control company; we’re your partners in safeguarding your home and ensuring the well-being of your family. From expert insights to specialized treatments, we’re here to provide the support you need for effective pest prevention. As fall approaches, don’t leave the fate of your home to chance—take action today.

Reach out to CO Pest Pros for comprehensive fall pest control solutions in Lakewood, Colorado Springs, and beyond. Our team of seasoned professionals is ready to create a customized plan to suit your needs. Embrace the beauty of fall without the worry of unwelcome pests—contact CO Pest Pros now and let us help you reclaim your home.

Remember, a pest-free fall is just a call or text away. Your peaceful and pest-free season awaits!