Paint does not fix active moisture
If a roof leak, plumbing issue, failed waterproofing, condensation problem or another defect is keeping the substrate damp, repainting alone will not solve the cause.
Why mould returns after painting
Recurring staining can happen when the underlying moisture condition remains, the surface was not adequately cleaned or dried, or unstable coatings were painted over.
What should happen before repainting?
The cause should be identified and addressed where necessary. The affected surface then needs to be suitable for painting: clean, dry and stable, with loose coating removed and repairs or priming completed as required.
When a painter is not the first trade you need
Active leaks, significant hidden mould, structural damp, waterproofing failure or extensive contaminated material can require another qualified trade or specialist before painting.
What repainting can do
Once the substrate is suitable, repainting can restore a consistent finish to walls and ceilings and blend repaired areas with the surrounding room.
Common Melbourne locations
Bathrooms, laundries, bedrooms, ceiling corners and colder external-wall areas are common places where customers notice mould staining or condensation-related marks.
Choosing a mould-resistant finish
Ask the painter which coating is proposed for the actual room and substrate, and what its current product instructions require. "Mould resistant" is not a promise that a surface can never develop mould. A bathroom ceiling, an external-wall corner and a previously leaking wall may have different preparation needs. Describe the conditions rather than choosing solely from the wording on a paint tin.
Better Health Channel's Victorian guidance emphasises addressing moisture and ventilation when dealing with mould. Large or recurring problems can need assessment beyond decorative painting. This guide covers repainting suitable surfaces, not medical advice, specialist remediation or waterproofing. Source: Victorian guidance on mould and moisture.
What to include in the repainting enquiry
Tell Kian which room is affected, whether the problem returns, what has been done about leaks or condensation and whether any specialist work is complete. Send a room view and close-ups without disturbing affected material for the photographs. For a suitable small job, those photos can support an initial estimate from Kian; larger or uncertain moisture problems need an on-site review, and Kian confirms the final written quote after reviewing the scope. Ask the quote to separate preparation, any minor repairs, the selected primer and finish, the surfaces included and any work another trade must finish first.
We serve Melbourne, including Fitzroy and Brunswick. The next step depends on the actual condition, not the suburb name. If a leak has been resolved but staining remains, see our water-damage stain painting guide.
Can mould-resistant paint go straight over visible mould?
The surface first needs appropriate treatment and preparation, and the source of moisture must be addressed. A new coating alone does not resolve an active problem.