First-Time Homeowner? Your Complete Pest Prevention Guide

Welcome Home — Now Let’s Keep the Pests Out

Congratulations on your new home. Alongside learning about your HVAC system, plumbing, and electrical panel, there’s one more system to understand: pest prevention. The decisions you make in your first few months of homeownership set the tone for years of pest-free living — or years of unwanted visitors.

This guide covers what every new homeowner needs to know about keeping pests out of their home.

Start With an Inspection

If your home purchase didn’t include a pest inspection (or only included a basic termite check), schedule a comprehensive pest inspection within the first month. A professional inspector will identify:

• Active infestations you may not see (pests hide well)
• Entry points that pests can exploit
• Conditions that attract pests (moisture, wood-to-soil contact, gaps in the foundation)
• Evidence of past infestations and whether treatment was effective

This baseline assessment tells you exactly what you’re working with and what needs immediate attention. See our termite inspection guide for details on what that process looks like.

The Most Common Household Pests

Ants

The most common household pest in America. They enter through the smallest cracks seeking food and water. Carpenter ants are particularly concerning because they hollow out wood for nesting, causing structural damage similar to termites.

Termites

Silent destroyers that can go undetected for years. Subterranean termites are most common, building mud tubes from soil to wood. Drywood termites infest wood directly without soil contact. Learn more in our guide on how to prevent termites.

Cockroaches

Resilient pests that thrive in warm, moist environments. They contaminate food, trigger allergies and asthma, and reproduce rapidly. German cockroaches are the most common indoor species.

Rodents

Mice can squeeze through a hole the size of a dime. Rats need only a quarter-sized gap. They gnaw through wiring (fire hazard), contaminate food, and carry diseases. Fall and winter are peak invasion seasons.

Spiders

Most household spiders are harmless and actually eat other pests. However, brown recluse and black widow spiders pose health risks. Regular cleaning and sealing entry points keep most spiders outdoors.

Mosquitoes

Standing water anywhere on your property — clogged gutters, plant saucers, birdbaths, old tires — creates mosquito breeding grounds. Eliminating standing water is the single most effective prevention measure.

Your New Homeowner Pest Prevention Checklist

Exterior

• Walk your foundation and seal every crack or gap, no matter how small
• Check that door sweeps and weatherstripping are intact on all exterior doors
• Ensure window screens are free of holes and tears
• Trim tree branches and shrubs so they don’t touch the house (pests use these as bridges)
• Move firewood at least 20 feet from the house
• Repair or replace damaged soffit and fascia
• Ensure gutters drain properly and downspouts direct water away from the foundation
• Remove debris, leaf piles, and standing water from the yard

Interior

• Seal gaps around pipes, wires, and cables that enter the house
• Install door sweeps on garage entry doors
• Store food in airtight containers (including pet food)
• Fix any leaky faucets or pipes — moisture attracts pests
• Keep the kitchen clean, especially at night (wipe counters, sweep crumbs)
• Declutter storage areas like attics, basements, and closets
• Use caulk to seal gaps around baseboards, cabinets, and utility openings

Seasonal Pest Prevention

Spring

Ants and termites become active. Inspect your foundation for mud tubes. Watch for carpenter ant activity near wood structures. Clear winter debris from your yard.

Summer

Peak season for mosquitoes, wasps, and ants. Eliminate standing water weekly. Keep trash cans sealed. Inspect outdoor eating areas regularly.

Fall

Rodents start seeking warmth indoors. Inspect your attic and basement for entry points. Store seasonal items in sealed plastic bins rather than cardboard boxes.

Winter

Indoor pests like cockroaches and rodents are the primary concern. Monitor for droppings, gnaw marks, and unusual sounds in walls or ceilings. Keep food sealed and kitchens spotless.

DIY vs Professional Pest Control

For general prevention and minor issues, DIY measures work well. But consider professional pest control services when:

• You’ve found evidence of termites, carpenter ants, or wood-destroying organisms
• You’re seeing cockroaches during the day (a sign of heavy infestation)
• Rodent traps aren’t solving the problem
• You’ve found bed bugs
• DIY treatments haven’t worked after two attempts

For a deeper comparison, read our guide on pest control: DIY vs professional.

Getting Professional Help

Many pest control companies offer annual prevention plans that include quarterly inspections and treatment. For a new homeowner, these plans provide peace of mind and catch problems early. The cost of a professional pest control plan — typically $300 to $600 per year — is a fraction of what you’d spend dealing with an established infestation.

Get a free quote from licensed pest control professionals in your area and protect your new home from day one.