Pest Library

Know what you are dealing with

A plain-English guide to the pests we see most around Colorado homes. Spot the signs early and know when it is worth a call.

Signs you may have it: Trails along baseboards, counters, or near entry points.
Why it happens: Looking for food and moisture, often nesting outdoors and foraging inside.
When to call: When trails keep returning or you find multiple entry points.

Signs you may have it: Webs in corners, basements, garages, and around windows.
Why it happens: Following other insects indoors and seeking quiet, sheltered spots.
When to call: When webs return quickly or you are seeing them regularly.

Signs you may have it: Droppings, gnaw marks, and scratching sounds in walls.
Why it happens: Seeking warmth and food, especially as temperatures drop.
When to call: At the first signs, before activity becomes established.

Signs you may have it: Nests under eaves and rooflines or activity near doorways.
Why it happens: Building nests in protected spots near food and shelter.
When to call: As soon as you spot a nest near high-traffic areas.

Signs you may have it: Activity near warm, moist areas like kitchens and bathrooms.
Why it happens: Drawn to food, water, and clutter where they can hide.
When to call: At the first sighting, since activity can grow quickly.

Signs you may have it: Small bites, tiny stains on bedding, or activity near seams.
Why it happens: Hitchhiking in on luggage, furniture, or visitors.
When to call: As soon as you suspect them, before they spread.

Signs you may have it: Increased biting around yards, patios, and standing water.
Why it happens: Breeding in standing water and active in warmer months.
When to call: When outdoor activity makes your yard hard to enjoy.

Field notes

Practical guidance from the field on common Colorado pest situations.

A look at the small gaps and warm spots rodents use once the temperature drops, and what to watch for.

Guide coming soon

How to stay safe and why it is worth handling stinging insects carefully instead of going after a nest yourself.

Guide coming soon

Why steady, seasonal visits often beat reacting to one problem at a time around Colorado homes.

Guide coming soon

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