Scratching Noises in UK Bedroom: Mice or Carpenter Ants?

A UK resident hears scratching/scraping noises in their room, sees tiny white/black bugs, notices noise increases after vacuuming or loud music. House has damp problems.

Likely Causes

1. Mice: Noises move around; common in walls/ceilings
2. Carpenter ants: Large nests make audible chewing sounds; favor damp-softened wood

Diagnostic Technique

Use an inverted drinking glass as a stethoscope: place open end against wall, ear against bottom. Locate loudest point. Moving sound = likely mice; fixed location = likely carpenter ants.

Resources

• Carpenter ant identification and control
• Related articles on that page for treatment options

Dampness should be addressed regardless—it attracts both pests and causes structural issues.