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The Complete Pest Entry Points Checklist: 40+ Spots to Inspect and Seal

Most homeowners don't realize how many pest entry points their home has — this checklist helps you find them all before pests do. By identifying and sealing these spots, you can prevent unwanted guests like ants, spiders, rodents, and more from making your home their new home. Use this printable or bookmarkable guide to inspect your house and take action. Each section is organized by zone, making it easy to go through your home step by step.

Pest Entry Points Checklist: 40+ Spots to Inspect and Seal

This pest entry points checklist covers the most common areas where pests can enter your home. Whether you're a first-time homeowner or have lived in your house for years, this guide helps you spot and fix vulnerabilities. Use the recommended materials to seal each opening and keep pests out for good.

Section 1 — Foundation and Exterior Walls

Start with the base of your home. Cracks, gaps, and other openings in the foundation and exterior walls are prime entry points for pests. Check each of these areas carefully:

• Foundation cracks – Look for horizontal or vertical cracks in the concrete or masonry. Horizontal cracks may indicate structural issues, while vertical cracks can be filled with caulk. Use a caulk gun to apply sealant.
• Gaps where utility pipes enter – Check areas where plumbing, electrical conduit, and gas lines go through the wall. These gaps can be sealed with foam sealant or copper mesh for larger openings.
• Gaps around AC refrigerant lines – These are often overlooked but can let in insects and small rodents. Use foam sealant to fill the space around the lines.
• Weep holes in brick – These are small openings in brick walls that allow water to escape. While they’re necessary, they can also let in pests. Cover them with copper mesh to prevent entry.
• Expansion joints – These are spaces between sections of concrete or masonry that allow for movement. Seal them with caulk to block pests.
• Gaps where siding meets foundation – These can be caused by settling or damage. Use foam sealant or caulk to fill the space.

Section 2 — Doors and Windows

Doors and windows are major entry points for pests. Check for gaps, worn weatherstripping, and damaged screens. These areas can be sealed with the right materials:

• Gap under front door – Use a door sweep to block this opening.
• Gap under back door and garage service door – These gaps can be sealed with a door sweep or foam sealant.
• Worn weatherstripping on door frames – Replace damaged weatherstripping with a new set to prevent pests from slipping through.
• Window screen tears – Replace torn screens with a new screen to block insects.
• Gaps in window frame caulking – Reapply caulk to seal any openings.
• Gaps around window AC units – Use foam sealant to fill the space between the unit and the wall.

Section 3 — Roof and Attic

The roof and attic are often overlooked, but they can be major pest entry points. Check these areas for gaps and damage:

• Ridge vent gaps – These vents can let in pests if they’re not properly sealed. Use copper mesh to cover the vent.
• Soffit vent gaps or damage – Check for holes or missing covers. Seal with foam sealant or replace damaged parts.
• Gable vents without fine mesh backing – These vents can let in pests if they don’t have a fine mesh screen. Install a copper mesh cover.
• Chimney cap missing or damaged – A broken cap can let in rats, raccoons, and birds. Replace it with a new chimney cap.
• Gaps where roof meets fascia – These are often found near gutters. Seal with caulk or foam sealant.

Section 4 — Plumbing and Utilities

Under your sink, in the laundry room, and near your HVAC system, there are many small gaps that pests can exploit. Check these areas for openings:

• Under-sink gaps around drain pipes – Use foam sealant or caulk to seal the space around pipes.
• Gaps around dishwasher supply line – These can be sealed with foam sealant.
• Gaps around washing machine drain hose – Use foam sealant to fill the space between the hose and the wall.
• Bathroom exhaust fan gaps – Check around the fan and seal with caulk.
• Dryer vent – Ensure the vent has a backdraft damper and is not loose. Secure it with screws and seal any gaps with foam sealant.

Section 5 — Garage

The garage is a common place for pests to hide and enter your home. Check for gaps in the door, walls, and connections to the house:

• Gaps in garage door panel seals – Replace worn or damaged seals with a new weatherstripping.
• Gap at bottom of garage door – Check the rubber seal for wear. Replace it if it’s damaged or missing.
• Gap around garage service door frame – Use foam sealant or caulk to fill the space.
• Gaps in garage wall to house connection – These can be sealed with foam sealant or caulk.

Recommended Materials for Sealing Pest Entry Points

Here are the materials you may need to fix the gaps and cracks you find:

Material	Use Case	Amazon Link
Caulk Gun	For applying caulk to small gaps and cracks	Amazon
Copper Mesh	For sealing larger openings like vents and weep holes	Amazon
Expanding Foam Sealant	For filling larger gaps and cracks	Amazon
Door Sweep	For sealing gaps under doors	Amazon

Why This Pest Entry Points Checklist Works

This pest entry points checklist is designed to help homeowners identify and seal the most common ways pests enter their homes. By following the steps in each section, you can significantly reduce the chance of a pest infestation. Remember, the key to effective pest prevention is regular inspection and maintenance. Use this guide to make sure your home is as secure as possible.

For more in-depth information on how to protect your home from pests, visit our home pest-proofing guide. This deep-dive companion to the pest entry points checklist includes tips on natural pest repellents, professional services, and long-term prevention strategies.