Noises in the wall? Could be a carpenter ant satellite nest

ByRandy Bilesky BsF CPA RPF

Noises in the wall? Could be a carpenter ant satellite nest

What’s Going On?

Randy Bilesky BScF CPA RPF

President at Go Green

June 11, 2025

  • Carpenter ants don’t eat wood, but they chew through it to build nests.
  • A satellite nest is a secondary colony, often built indoors (like in wall voids), while the main nest is outdoors in a tree, stump, or deadwood.
  • If you’re hearing chewing, it’s likely a serious infestation — they’re expanding the nest or foraging.

🚩 Signs of Carpenter Ants in Walls

  • Faint rustling or chewing noises, especially at night.
  • Frass: piles of sawdust-like material near walls or baseboards.
  • Large black ants, especially winged ones (swarmers).
  • Soft or hollow-sounding wood.

🛠️ What You Should Do

1. Locate the Nest

  • Try to find entry points: gaps, holes, or areas where frass is appearing.
  • Carpenter ants often nest near moisture — leaky pipes, roof leaks, or bathrooms.

2. Treat the Nest

  • Dust insecticides like boric acid or diatomaceous earth can work if applied directly.
  • Insecticidal foams can penetrate wall voids.
  • Use ant baits to feed the colony — they take the poison back to the nest.

3. Call a Professional

  • Since it’s a satellite nest in a wall, call Go Green Pest Control experts, highly recommended.
  • We help track down both main and satellite nests and ensure total removal.

4. Long-Term Prevention

About the author

Randy Bilesky BsF CPA RPF administrator

Pest Control Owner