Heavy monsoon and high humidity are tough on interiors in Mumbai and Thane. Most monsoon damage is not bad luck. It comes from choices made during the renovation.
Fix the source of water first
Painting over a damp wall only hides the problem for a few weeks. Trace the cause first: cracks in the external wall, a leaking terrace, gaps around window frames or a leaking bathroom pipe above. Repair it before any finishing work.
Waterproof wet areas properly
Bathrooms, balconies and kitchen floors need a proper waterproofing coat before tiling, followed by a ponding test where water is held on the floor for a day or two to confirm there are no leaks.
Choose materials that tolerate moisture
- Use moisture-resistant plywood for kitchens, bathroom vanities and wardrobes near external walls.
- Avoid plain particle board or MDF where it can touch damp walls or floors.
- Seal every cut edge of wood, not only the visible faces.
- Leave a small gap between wardrobes and external walls so air can move.
Paint smart
Use a damp-proof or waterproof primer on exterior-facing walls, and anti-fungal paint in bedrooms and bathrooms. Let walls dry fully before painting.
Small details that help
- Keep wooden doors and frames sealed on all sides, including top and bottom edges.
- Keep wiring in concealed conduits and avoid sockets on damp-prone walls.
- Ventilate wardrobes and storage during humid months.
Best timing: if your home has seepage, schedule repairs and waterproofing in the dry months so the work has time to cure properly.
