Free for homeowners
Pest control in Colorado

What are the most common pests in this state, and who handles them?
Pest control in Colorado is rodents and wasps more than termites: deer mice pour indoors at the first freezes along the urban-wildland edge, and yellowjackets peak in late summer in foothill communities. PestChief is free for Colorado homeowners and matches each request to one independent local company by ZIP code.
Where can you read about each pest?
Pest pressure here is shaped by climate, geography and housing stock, so it varies across the state. The notable issues for this state are set out on this page. For how each pest is identified, what the signs look like and what treatment usually involves, read the pest guides.
What is the climate like here?
Climate is the biggest single driver of which pests live here and how long their season runs.
Which pest issues stand out here?
- Deer mice and voles entering homes at the urban-wildland edge
- Arid-land subterranean termites along the Front Range, less common than in the South
- Yellowjacket pressure in late summer, especially in foothill communities
- Mosquito breeding tied to irrigation ditches and South Platte drainages
Which pests are active in each season?
Activity shifts through the year, so the pest worth treating in March is rarely the one worth treating in August.
Which pests are active in spring?
Which pests are active in summer?
Which pests are active in fall?
Which pests are active in winter?
How does pest pressure vary by region?
Pest pressure is not uniform across a state. Elevation, humidity, soil and the age of the housing stock all change which pests appear and when.
Which regions of the state face which pests?
When do termites swarm in each region?
Is your ZIP code in Colorado covered?
PestChief is free to the homeowner. Coverage is checked ZIP code by ZIP code, not state by state. Give your ZIP code and the pest you are seeing, and if an independent local pest control company covers that ZIP code and handles that pest, your request goes to that one company, and it contacts you directly.
What licensing should you ask a company for?
Licensing is the one check a homeowner can make before any work starts. Every state requires a pest control company to hold a license, and most require a separate certification for specialty work such as termite treatment. Ask for the license number, confirm it covers the pest you have, and check it with the state agency that issues it.
What does this state require of a licensed company?
What else should you know about this state?
A few state specific details that change how pest control works here, and what they mean for a homeowner.
Which metro areas are covered?
Coverage varies inside a state, not only between states. A company that covers one metro area may not cover a rural ZIP code two counties away, and the pests it is licensed to treat can differ as well. The metro areas listed here are where PestChief most often has a company to introduce you to. If your city is not listed, a ZIP code check is still worth doing.
What do homeowners ask most?
What pests are most common in Colorado?
In Colorado, ants, spiders, wasps and hornets, mosquitoes, rodents and bed bugs account for most calls. The local drivers:
- Deer mice and voles entering homes at the urban-wildland edge
- Arid-land subterranean termites along the Front Range, less common than in the South
- Yellowjacket pressure in late summer, especially in foothill communities
- Mosquito breeding tied to irrigation ditches and South Platte drainages
When is pest season in Colorado?
Pest season in Colorado is short outdoors and turns sharply indoors at the first freezes, when rodents move in.
Spring: Ants and wasp queens become active; mice remain a concern at higher elevations. Summer: Mosquitoes near irrigated land; wasp colonies grow quickly. Fall: Strong rodent migration indoors with the first freezes; spiders peak. Winter: Almost entirely indoor pests: mice, pantry pests and occasional spiders.
Who licenses pest control companies in Colorado?
Commercial pesticide applicators are licensed by the Colorado Department of Agriculture, which regulates structural pest control services. Check the Colorado license before work begins and confirm it covers your pest.
How much does pest control cost in Colorado?
For Colorado rodent or wasp work, national estimates run about $171 (This Old House) for a single visit, $300 to $550 (HomeAdvisor) for a one time treatment program, and $300 to $900 (HomeGuide) a year on a recurring plan. Each figure states its publisher. None is a PestChief quote; the company that inspects your home sets the price.
Does Colorado have termites?
Yes, but termite pressure in Colorado is light compared with the South. Arid-land subterranean termites occur along the Front Range, while most Colorado pest work involves deer mice and voles entering homes at the urban-wildland edge and yellowjackets peaking in late summer in foothill communities.
Does PestChief cover Colorado?
Yes, in part: independent local companies cover ZIP codes in the Denver metro area. Since coverage is set per ZIP code and per company, confirm your address in the locations finder. One independent local company that covers the ZIP and handles the pest receives the request and contacts the homeowner directly.
Where does this information come from?
Seasonality and pest biology
- US EPA, Integrated Pest Management principles
- UC Statewide IPM Program, Home and Landscape pests
- Penn State Extension
- CDC, Mosquitoes
- US EPA, Safe Pest Control
Pricing
National estimates from published industry sources. Not PestChief quotes.
Licensing
Licensing is administered by Colorado Department of Agriculture.
Ready to get this handled?
It costs the homeowner nothing. Coverage is checked ZIP code by ZIP code. Give your ZIP code and the pest you are seeing, and if an independent local pest control company covers that ZIP code and handles that pest, your request goes to that one company. It contacts you directly, and it sets its own price.
What should you check before you hire?
Every state we cover
Browse the full list of states and metro areas, and check whether your area is covered.
Pests, one by one
Identification, signs of an infestation and what to do first, for each pest we cover.
What pest control costs
National ranges by treatment type, with the basis for each figure stated plainly.
Season by season
Which pests get active when, and the months worth acting in before a problem grows.
Learn the basics
Plain explanations of treatments, prevention and the questions worth asking a company.
How PestChief works
We match a homeowner with one independent local pest control company. Here is what happens.
