Centipedes Scutigera coleoptrata
The house centipede — all legs and speed in the bathtub — is actually a predator that eats roaches, silverfish, and spiders. Seeing one occasionally means it’s hunting. Seeing them weekly means there’s enough prey (and moisture) in your home to support predators, and that’s the real signal.
Signs you have them
- Fast, many-legged sprinters in tubs, sinks, and closets
- Sightings concentrated in damp rooms: baths, laundry, garage
What you can do today, free
- Dehumidify the rooms you see them in
- Clear clutter on garage and closet floors where they hunt
- Seal the gap under the water heater door
Questions, answered straight
Should I even kill them?
Honest answer: a lone house centipede is free pest control. But regular sightings mean a prey population worth treating — fix that with the Pest Plan and the centipedes leave on their own.
Cockroaches 
Ants 
Spiders