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Duct cleaning video

Air ducts and allergies

The short answer

Ducted heating can hold a build-up of dust mite allergens, pet dander, mould spores and cockroach allergens, and the system picks them back up and carries them through the home when it runs. A professional duct clean removes that reservoir, so less is circulated each time.

  • Duct cleaning
  • 0:36 Short
  • Published 30 Oct 2026

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

Key points

  • Dust mite allergens, pet dander, mould spores and cockroach allergens can all build up in ductwork.
  • When the system runs, settled allergens are picked back up and carried through the home.
  • A professional duct clean removes the built-up reservoir, so less is circulated.
  • Afterwards, a better filter helps keep it that way. Check your system can take one first.

Questions this video answers

Can dirty ducts affect allergies?

Yes. Allergens such as dust mite allergens, pet dander, mould spores and cockroach allergens build up in ductwork and get carried through the home each time the system runs.

How do I reduce allergens in my ducted heating?

Have the ducts professionally cleaned to remove the built-up reservoir, then use a better filter if your system can take one.

Transcript

Got allergies and ducted heating? FreshDuct explains what's collecting inside your ducts. Dust mite allergens, pet dander, mould spores and cockroach allergens can all build up in ductwork. When the system runs, settled allergens get picked back up and carried right through the home. A professional duct clean removes that built-up reservoir, so less is circulated each time it runs. Then keep it that way with a better filter.

Check your system can take one first. No call-out fee, and you pay after the job. Call FreshDuct on 04 3191 8137.