pest-control

How Much Does Pest Control Cost in Denver, CO? (2026) Prices for Mice, Wasps, Spiders, and Quarterly Plans

Pest control prices in Denver, CO for 2026: one-time and quarterly plans, mouse and rat exclusion, wasp nest removal, bed bug heat treatment, and hiring tips.

How Much Does Pest Control Cost in Denver, CO? (2026) Prices for Mice, Wasps, Spiders, and Quarterly Plans

Pest control in Denver, CO costs $125 to $275 for a one-time general treatment in 2026, and quarterly service plans run $100 to $175 per visit, or roughly $400 to $650 a year. Rodent control is the biggest category in the metro, with mouse exclusion and trapping starting at $250 and full exclusion jobs on a typical home reaching $800 to $1,800. Wasp and hornet nest removal runs $125 to $350, and bed bug treatment, the most expensive residential service, costs $1,000 to $3,500 for an average home.

Denver's pest mix is different from the humid South. There are no termites to speak of along the Front Range, no cockroach infestations on the scale of Houston or Phoenix, and no fire ants.

What Denver has is mice every fall when the temperature drops, voles tearing up lawns, paper wasps and yellowjackets in every eave from June through September, spiders, boxelder bugs, and a growing bed bug problem in multifamily buildings. Pest control pricing here follows that pattern.

One-Time Treatments vs. Quarterly Plans

A one-time general pest treatment covers the exterior perimeter, entry points, and problem areas inside for ants, spiders, and common crawling insects. Denver companies charge $125 to $275 for a single-family home and $100 to $175 for a condo or townhome. The treatment lasts 60 to 90 days, and most companies offer a 30-day guarantee.

Quarterly plans are the standard recurring option. They cost $100 to $175 per visit, with a first-visit or setup fee of $150 to $300 that covers a more thorough initial treatment. The math favors the plan for anyone who calls more than twice a year, and most Denver companies include free re-treatments between visits if pests come back.

Monthly plans exist for restaurants and problem properties but are rare for Denver homes. Bimonthly plans at $75 to $125 per visit are offered by some companies as a middle ground.

What Plans Usually Include and Exclude

Standard quarterly plans in Denver cover ants, spiders, boxelder bugs, earwigs, silverfish, centipedes, and often wasps and mice as add-ons or at a reduced rate. They typically exclude bed bugs, termites, voles, and wildlife, each of which is priced separately.

Read the exclusions. A plan that covers "rodents" might mean bait stations only, not the exclusion work that keeps mice out.

Rodent Control: Denver's Biggest Pest Problem

Mice move indoors across the Front Range every September and October, and pest companies in Denver, Aurora, Lakewood, Arvada, and Littleton book up from Labor Day through Thanksgiving. A basic rodent service with trapping and bait stations costs $250 to $450 for an initial visit and $75 to $125 for follow-ups.

Exclusion is the permanent fix. A technician inspects the foundation, siding gaps, garage door seals, utility penetrations, and rooflines, then seals entry points with steel wool, hardware cloth, and sealant. A typical exclusion on a Denver ranch or two-story runs $500 to $1,200, and older homes in Park Hill, Wash Park, Berkeley, and the Highlands with stone foundations and multiple additions can reach $1,500 to $1,800.

Voles are the other rodent issue, and they are a lawn problem more than a house problem. Vole control with baiting and habitat modification runs $150 to $350 per visit and usually needs two or three treatments over a season.

Rats in Denver

Roof rats and Norway rats have become more common in Denver in recent years, particularly near the South Platte, in older neighborhoods with mature landscaping, and around restaurant districts. Rat control is priced above mouse control at $350 to $700 initial and $100 to $175 per follow-up, and exclusion is similar to mice but with larger gaps to seal.

Wasps, Hornets, and Bees

Paper wasp nests under eaves, in grills, and in mailboxes are a summer constant in Denver, and removal runs $125 to $250 per nest. Yellowjacket nests in the ground or in wall voids cost more, $200 to $400, because they require dusting or injection and sometimes a second visit. Bald-faced hornet nests, the large gray paper ones in trees, run $200 to $350.

Honeybee swarms and colonies are usually referred to a beekeeper rather than a pest company, and many Denver beekeepers remove swarms for free or a small fee. A colony inside a wall is a different story, with removal and repair running $500 to $2,000.

Many quarterly plans include wasp nest removal on the exterior at no extra charge during regular visits, which is a good reason to be on a plan through summer.

Spiders, Boxelder Bugs, and Seasonal Invaders

Spider treatments are usually part of a general service, but homeowners with a specific concern about black widows, which are common in garages, sheds, and window wells across the metro, can get a targeted treatment for $125 to $250. Brown recluse are rare in Colorado despite what many people believe, and a company that leads with recluse fear is one to question.

Boxelder bugs, elm seed bugs, and cluster flies swarm sunny south and west walls every fall, and exterior treatments run $125 to $225. Timing matters: treating in late September before they move indoors works far better than treating in November after they are inside the walls.

Miller moths in May and June are a Front Range ritual, and there is no effective treatment; turning off exterior lights and waiting is the only real answer. Any company selling a miller moth treatment is selling something that does not work.

Bed Bug Treatment in Denver

Bed bug treatment is the most expensive residential pest service and one of the fastest growing in the Denver metro, particularly in apartments and condos in Capitol Hill, Uptown, and along the Colfax corridor. Chemical treatment with two or three visits runs $1,000 to $2,500 for a typical apartment or small home. Heat treatment, which raises the whole unit above 120 degrees for several hours, costs $1,500 to $3,500 and usually works in one visit.

Multifamily buildings need all adjacent units inspected, and a good company will insist on it. Landlords in Denver are responsible for bed bug treatment under state law once they receive notice, so tenants should report in writing.

Wildlife and Larger Jobs

Raccoons, squirrels, skunks, and bats are handled by wildlife control specialists rather than general pest companies in Colorado, and some species are protected. Squirrel removal from an attic runs $300 to $700 plus exclusion.

Raccoon removal costs $350 to $800. Bat exclusion, which has to wait until after the summer maternity season, runs $800 to $2,500 for a typical home.

Colorado Parks and Wildlife rules govern relocation, and a licensed wildlife operator knows them. Ask for the license.

Ants, Earwigs, and Yard Pests

Ants are the most common insect call in Denver from April through September, and a targeted treatment for pavement ants or odorous house ants runs $125 to $225. Carpenter ants, which show up in older homes in Wheat Ridge, Golden, and the foothills, cost more at $200 to $400 because the nest has to be found and treated in the structure.

Earwigs, sowbugs, and millipedes swarm after wet weeks and are covered by most general treatments. Mosquito yard treatments, which have grown popular in Denver's suburbs, run $70 to $120 per visit every three to four weeks through the summer.

Hiring a Pest Control Company in Denver

Colorado requires commercial pesticide applicators to be licensed through the Department of Agriculture, and the company should hold a commercial applicator license with the technician holding a qualified supervisor or certified operator credential. Ask for the license number, and confirm general liability insurance.

Get the treatment plan in writing with the target pests, the products used, the number of visits, and the guarantee. Compare at least two companies for anything over $500, since Denver pricing varies by 30% or more between the large national franchises and local independents. You can compare options through the pest control companies listed for Colorado on this directory, and the Colorado home services blog covers what other home services cost across the state.

Frequently Asked Questions

How much does quarterly pest control cost in Denver?

Quarterly plans run $100 to $175 per visit, or about $400 to $650 a year, with a first-visit fee of $150 to $300. Most include free re-treatments between visits.

How much does mouse control cost in Denver?

Trapping and baiting starts at $250 to $450 for the initial visit. Full exclusion to seal entry points runs $500 to $1,200 on most homes and up to $1,800 on older houses.

What does wasp nest removal cost in Denver?

Paper wasp nests run $125 to $250, yellowjacket and hornet nests $200 to $400. Many quarterly plans include exterior nest removal at no charge.

How much is bed bug treatment in Denver?

Chemical treatment costs $1,000 to $2,500 over two or three visits. Heat treatment runs $1,500 to $3,500 and is usually done in one visit.

When is the best time to treat for mice in Colorado?

Late August or early September, before the first cold snap sends mice indoors. Exclusion done in summer prevents the fall problem entirely.

Do I have termites in Denver?

Almost certainly not. Subterranean termites are rare along the Front Range, and a company pushing a termite treatment in Denver should be asked for evidence.