Will a dehumidifier under the house fix the damp?
Published on: 07/11/2026
A dehumidifier works in a closed room. Under a house with open vents it struggles to keep up. Why that is, when one does make sense, and what else to try.

A dehumidifier works in a closed room. Under a house with open vents it struggles to keep up. Why that is, when one does make sense, and what else to try.

Measure it, then deal with the sources: showers, cooking, drying clothes, leaks and damp under the floor. What to try yourself, and when to get help.

Clean mildew and mould safely, then find the moisture feeding it. What to try yourself first, and the signs the damp is coming from under your floor.
Inspire Electrical & Ventilation · 16 Hyndes Place, Davidson NSW 2085 · 0466 805 580 · [email protected]
Inspire Electrical Services Pty Ltd · ABN 63 651 398 079 · NSW Electrical Contractors Licence 503808C · Website by Leadout