Rotting deck boards and soft spots
A board that flexes or crumbles usually has a rotten joist under it. Fix both, or it comes back.
Why it happens
Rot needs constant moisture. On Singapore balconies the usual culprit is the subframe: old timber battens sitting on a wet slab, or a blocked floor trap that keeps water under the deck. The top boards rot from below, often where you cannot see it.
How we fix it
- Lift boards over the soft area
- Replace rotten battens with aluminium runners
- Clear drainage and leave an access panel over the floor trap
- Fit new boards and refinish to blend
Get it quoted
Send us photos of the affected area on WhatsApp and we will reply with a quote. More on our deck board and subframe repair service.
Questions about this problem
How do I know if my deck is rotten?
Push a screwdriver into the board and the joist beneath. If it sinks in easily or the wood crumbles, that section is rotten.
Does rot spread to the rest of the deck?
Rot spreads where moisture stays. Fix the water problem and the healthy boards stay healthy.
Other deck problems
Not sure if your deck needs a repair or a full replacement?
Send us photos on WhatsApp. We will tell you honestly whether a sand-and-oil, a few new boards, or a full re-lay makes sense, and send you a quote.