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Insulation + VEU rebate video

What rats do to your insulation

The short answer

Rats and mice nest in ceiling insulation, tunnel through it and soil it with droppings and urine. That flattens it and leaves a musty, ammonia-like smell that drifts into the house. Don't disturb it yourself: the contaminated insulation is vacuumed out, the roof space cleaned and sanitised, and entry points sealed.

  • Insulation + VEU rebate
  • 0:35 Short
  • Published 2 Nov 2026

7 days a week. No call-out fee, and you pay after the job.

Key points

  • Rats and mice nest in insulation, tunnel through it and soil it with droppings and urine.
  • That flattens it and leaves a musty, ammonia-like smell that drifts down into the house.
  • Don't disturb contaminated insulation yourself.
  • It is vacuumed out, the roof space is cleaned and sanitised, and entry points are sealed so new insulation stays clean.

Questions this video answers

What do rats do to roof insulation?

They nest in it, tunnel through it and soil it with droppings and urine, which flattens it and causes a musty, ammonia-like smell.

How is rodent-damaged insulation fixed?

The contaminated insulation is vacuumed out, the roof space is cleaned and sanitised, and the entry points are sealed so the new insulation stays clean.

Transcript

Scratching in the roof at night? FreshDuct shows what rats and mice do to your insulation. They nest in it, tunnel through it and soil it with droppings and urine. That flattens the insulation and leaves a musty, ammonia-like smell that drifts down into the house. Don't disturb it yourself. The contaminated insulation is vacuumed out, and the roof space is cleaned and sanitised. Then the entry points get sealed, so the new insulation stays clean.

No call-out fee, and you pay after the job. Call FreshDuct on 04 3191 8137.