What is driving HDB mould complaints 2025 and how serious is it?

Complaints rose to 240 cases in 2025 where neighbour air conditioners were linked to condensation on walls or ceilings. Warm, humid air meeting cold surfaces fosters mould growth. The number signals a recurring, manageable maintenance problem that needs consistent prevention, better AC use, and clear guidance on responsibility rather than a structural crisis across public housing.

How might a policy review change cost-sharing or responsibility?

A review could set clearer steps to identify cause, recommend fixes, and define when neighbours share costs. Expect guidance on AC settings, drainage, insulation, and documentation. If cause is established, some rectification may be shared. Transparent evidence, mediation, and certified works would support fair outcomes while reducing disputes and delays for affected households.

Will demand for mould-resistant paint rise if guidance is issued?

Yes, if guidelines encourage protective coatings and sealing, demand for mould-resistant paint, anti-fungal primers, and moisture barriers could increase. Preventive maintenance packages from HVAC firms may also gain traction. Investors should track retail sales, contractor order books, and service plan adoption as residents prioritise prevention over one-off remedial works.

What should residents do before contacting HDB for help?

Start with simple steps: raise the AC set temperature, boost fan speed, improve airflow, and dry affected areas. Clean with mild detergent and ensure drainage is clear. Document the issue with photos and timings. Communicate with your neighbour first. If problems persist, request an HDB inspection for objective assessment and next steps.

Global Market Insights

January 14: HDB Logs 240 AC-Linked Mould Cases; Policy Review Eyed

ByHuzaifa Zahoor January 14, 2026January 14, 2026

HDB mould complaints 2025 rose to 240 cases tied to neighbours’ aircon use, putting moisture control and accountability in focus. HDB is inspecting affected flats, advising on use, and studying wall or ceiling enhancements with possible cost-sharing. We explain why this matters for Singapore housing policy, homeowners, and vendors. Any guidance could lift demand for mould-resistant paint and regular HVAC servicing, while shaping liability expectations for residents, renovation firms, and property managers across Singapore’s public housing market.