Short answer: Those little dark, worm-like bugs curling into tight coils on your Pensacola garage floor and baseboards are millipedes, and a sudden late-summer invasion almost always follows heavy rain. They don't bite, sting, or damage your home, and most die within a day or two indoors because it's simply too dry for them. The real fix is drying out and sealing the spots where they slip in.
Millipedes live in damp places — mulch, leaf litter, and lawn thatch — where they feed on decaying plant matter. After a wet stretch (and the Gulf Coast dog days deliver plenty), waterlogged ground pushes them to move by the hundreds, often crawling up foundations and under door sweeps at night. Because they depend on constant moisture, they can't last long indoors, which is why you usually find them dead and curled up.
Start with moisture and harborage: pull mulch and leaf piles back from the foundation, fix damp low spots, and improve drainage so the soil against the house dries out. Seal and caulk gaps around doors, the garage, and utility lines. A targeted exterior treatment along the foundation and lawn edge knocks down the wave when conditions are driving them in. Handle the ones inside by vacuuming rather than crushing — their defensive fluid can stain surfaces and irritate skin.
Are millipedes dangerous? No. Millipedes don't bite or sting and don't damage your home. Their only downside is the nuisance and a defensive fluid that can stain or irritate skin if you crush them, so vacuum them up instead.
Why do they show up right after rain? Millipedes need high moisture. When heavy summer rain saturates the soil, they move in large numbers and often climb foundations and slip indoors, usually at night.
Will they infest my house? No. Indoor air is too dry for them, so they typically die within a day or two. Chronic problems point to damp conditions or harborage near the foundation, which is exactly what treatment and moisture control address.
Seeing millipedes indoors around Pensacola? EnSec can treat the foundation and lawn edge and help you close the entry points. Call 850-821-2215 or request a visit.
EnSec Pest & Lawn has been protecting Gulf Coast homes since 1997. Get a free estimate today.
