Perth’s climate, with humid summers and wet winters, creates ideal conditions for mould growth in many homes. Recent data shows a concerning trend, with mould removal requests increasing by 12% in just three weeks. As we face the task of mould removal in Perth homes, knowing which suburbs are most vulnerable to mould infestations can help homeowners put necessary mould prevention strategies in place.



1. Mould in Fremantle Homes
Mould in Fremantle is particularly problematic due to its coastal location. The combination of sea breezes carrying moisture and older housing stock with poor ventilation creates ideal conditions for mould growth. Many heritage-listed properties in this suburb struggle with rising damp issues that exacerbate the problem.
Mould prevention tip for Fremantle property owners: Homeowners should improve subfloor ventilation and ensure heritage walls are treated with breathable sealants to prevent rising damp without trapping moisture.
2. Mould in South Perth Homes
South Perth’s humidity levels tend to be higher due to its riverside location. The proximity to the Swan River increases ambient moisture, particularly during the winter months. Older apartments and units in this area often face inadequate ventilation systems, creating local mould hotspots in bathrooms and laundries.
Mould prevention tip for South Perth property owners: Exhaust fans with humidity sensors in bathrooms and laundries can automatically remove excess moisture during humid periods.
3. Mould in Maylands Homes
With many properties situated in low-lying areas near the river, Maylands homes frequently experience higher groundwater levels. This moisture can seep into foundations and walls, creating perfect conditions for mould growth, especially in older properties with inadequate damp-proofing.
Mould prevention tip for Maylands property owners: Inspect and maintain damp-proof courses and ensure proper drainage around the home to reduce groundwater seepage into walls and foundations.
4. Mould in Scarborough Homes
Mould in Scarborough properties is often linked to the suburb’s beachside location. Salt-laden air combines with poor ventilation in many of the area’s older apartments to create persistent mould problems, particularly in bathrooms and poorly ventilated bedrooms.
Mould prevention tip for Scarborough property owners: Use a dehumidifier in rooms and bathrooms during humid weather and clean salt residue from windows and walls regularly to reduce moisture retention.
5. Mould in Bassendean Homes
This suburb’s clay soil retains moisture, creating higher humidity levels around properties. Combined with older housing stock that may lack effective moisture barriers, Bassendean residents frequently report mould issues, especially after heavy rainfall periods.
Mould prevention tip for Bassendean property owners: Improve yard drainage and use moisture barriers under flooring or in crawl spaces to reduce soil moisture rising into the home after rain.
According to reiwa.com.au, mould can be a significant issue in many rental properties and mould removal responsibilities depend on the cause of the mould. Structural issues causing mould are typically the landlord’s responsibility, while poor ventilation practices may fall to tenants.
Related post: Why Mould Thrives in WA Homes and How to Stop It
Prompt action is essential when dealing with mould to prevent health impacts and damage to one’s property. Contact Kleen Slate Services for professional mould removal in Perth. We service right across the Perth Metro area, including in and around the following locations:
