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Danger Level: Moderate — Indicates Moisture & Pest Issues

Ann Arbor Centipede & Millipede Control
Moisture & Entry Point Treatment

Centipede and millipede activity in Ann Arbor properties is almost always a symptom of underlying moisture and insect conditions — not just a surface pest problem. Our licensed specialists treat the current population and address the environmental factors driving it.

Certified Specialists Full Moisture Evaluation Structural Entry Points Sealed Perimeter Treatment
Common Signs of Centipede or Millipede Infestation
  • Fast-moving, many-legged arthropods seen in bathrooms or on basement floors
  • Slow-moving coiled millipedes in basement areas
  • Large numbers of millipedes accumulating near the foundation or entry points
  • Activity near moisture sources — drains, sump pumps
  • Damp basement, crawlspace, or garage conditions
  • Sudden increase in activity after heavy rainfall or prolonged wet weather
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Centipede & Millipede Control Ann Arbor — What Their Presence Indicates

Centipedes and millipedes are not random visitors in Ann Arbor homes — they are indicators. High moisture in crawlspaces or basements, organic debris close to the structure, and insect populations in wall voids or lower floors all attract these arthropods reliably. Treating the population without addressing these conditions produces only temporary results.

Millipedes, which feed on decaying organic matter, often invade in large numbers after heavy rainfall — migrating from outdoor mulch and leaf litter into foundations and through gaps in the building envelope. Centipedes follow the insects they feed on.

Identifying Which Species You Have in Ann Arbor

Centipedes move fast — one pair of legs per body segment, predatory, and capable of a mild bite if directly handled. The house centipede is the most common indoor species and is attracted by the insects it hunts. Millipedes move slowly, coil when disturbed, have two pairs of legs per segment, and feed on decaying matter rather than other insects. They do not bite but produce defensive secretions that can irritate skin and eyes.

How We Treat Centipede & Millipede Infestations in Ann Arbor

Lasting centipede and millipede control in Ann Arbor requires two parallel actions: chemical treatment to reduce the current population, and environmental modification to remove the moisture and harborage conditions that will sustain a new one. Perimeter treatment alone produces short-term results. Addressing root conditions produces lasting ones.

Treatment Options for Ann Arbor Properties

Effective centipede and millipede control addresses both the active population and the underlying environmental conditions sustaining it.

Perimeter & Foundation Treatment

Perimeter treatment creates a residual contact zone at the foundation that intercepts migrating millipedes and centipedes before they reach entry points. Applied to foundation walls, soil adjacent to the structure, and mulch beds — the areas where populations accumulate between outdoor harborage and indoor access.

Basement & Crawlspace Treatment

Interior treatment focuses on the harborage and transition zones: basement floor perimeters, crawlspace wall junctions, utility areas, and the lower-level spaces where both species concentrate after entering through foundation gaps.

Moisture Assessment

Our Ann Arbor technician assesses moisture conditions throughout the lower structure — basement walls, crawlspace surfaces, and foundation drainage — identifying the specific sources of excess humidity that centipedes and millipedes require to survive indoors.

Entry Point Sealing

Foundation cracks, gaps around utility penetrations, door threshold gaps, and window well edges are identified, documented, and sealed — physically blocking the routes centipedes and millipedes use to reach interior spaces.

Outdoor Harborage Reduction

Specific guidance on mulch management, leaf litter removal, wood pile relocation, and organic debris clearance in the zone immediately adjacent to the foundation — the outdoor harborage area that sustains the populations entering your Ann Arbor property.

Prey Insect Control (Centipedes)

House centipedes are predators — their presence in quantity means a prey insect population is supporting them. Where this is identified in your Ann Arbor property, treating only the centipedes leaves the food source intact. Our integrated approach targets both, removing the centipedes and the reason they were there.

Millipede Invasion Seasons in Ann Arbor

The highest millipede invasion events in Ann Arbor properties follow a consistent pattern: late summer drought compacts outdoor populations into remaining moist areas, and the first significant autumn rainfall then saturates those areas simultaneously — triggering mass migration toward foundations. Properties with gaps in the building envelope and organic debris close to the structure experience the largest influxes.

Schedule Centipede & Millipede Control in Ann Arbor

Call our specialists in Ann Arbor to arrange a property assessment. We will identify the conditions sustaining the infestation and recommend a treatment and prevention plan with transparent pricing.

Speak to a Specialist — (844) 817-0020

Ready to Eliminate Centipedes & Millipedes From Your Ann Arbor Property?

Certified specialists. Moisture evaluation and perimeter treatment included. No call-out fee. Serving Ann Arbor now.

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