# Water Seepage Repair Singapore | Walls, Planters and Facades | Seepwise > Water seepage repair in Singapore: damp walls, peeling paint and white salt marks traced to the source. HDB facade and condo common-property rules explained. URL: https://waterproofing.affiliateinsider.buzz/water-seepage-repair/ - Home - / Water seepage repair # Water Seepage Repair in Singapore Bubbling paint and white powder on a wall are water moving through it. The source decides the fix. [Request an inspection](#request) Last updated: 2026-10-10 [Seepwise](/) arranges water seepage repair for walls in Singapore homes: damp patches, bubbling or peeling paint, white salt deposits (efflorescence) and musty corners. The first job is deciding whose wall it is, because in HDB blocks the external facade walls are the Town Council's responsibility ([HDB](https://www.mynicehome.gov.sg/hdb-how-to/maintain-your-flat/)). ## What happens on the first visit The specialist reads moisture across the wall to find where it is wettest, then checks what is on the other side: an external facade, a neighbouring bathroom, a planter box, a concealed pipe or a window. Seepage from a wet area next door is treated like a ceiling leak; seepage through an external wall is a facade job; seepage from a pipe is a plumbing job. ## Reading the signs - Bubbling or peeling paint low on a wall next to a bathroom: usually the wet area next door - White powdery deposits (efflorescence): salts left behind as water evaporates through masonry - Damp band after heavy rain on an external wall: facade cracks or a failed window seal - Damp that never dries, with a higher water bill: a concealed pipe (water leak detection) ## Who is responsible In HDB flats, the Town Council looks after common areas and external facade walls, and HDB asks owners to report external wall cracks to the Town Council ([HDB](https://www.mynicehome.gov.sg/hdb-how-to/maintain-your-flat/)). New HDB flats carry a 5-year warranty covering external seepage ([HDB](https://www.mynicehome.gov.sg/hdb-how-to/maintain-your-flat/)). In condominiums, BCA's guide notes that seepage can originate within a unit or at common property, recommends a joint inspection with the management to find the cause, and points disputes to the Strata Titles Boards ([BCA Guide 13](https://www1.bca.gov.sg/docs/default-source/docs-corp-regulatory/building-maintenance-and-strata-management/bca_guide-13_water_seepage.pdf)). See [condo water seepage: who pays](/guide/condo-water-seepage-who-pays/). ## How seepage is fixed The repair follows the source: re-waterproofing the wet area or planter behind the wall, injecting and sealing facade cracks, resealing a window frame, or repairing a pipe. Only after the source is dry is the wall itself treated: damaged plaster removed, a breathable finish applied and repainted. Painting a wet wall traps the moisture and the paint fails again within months. ## What is included - ✓Moisture map across the wall - ✓Other side of the wall identified - ✓Responsibility under HDB or condo rules stated - ✓Source fixed before the wall is treated - ✓Damaged plaster removed and made good - ✓Breathable finish where needed - ✓Photos for the Town Council or MCST if it is theirs - ✓Written finding and scope ## Painting over it vs a quick fix vs a proper repair DIY Quick fix Proper repair First step Anti-mould paint Repaint Find the wet side Responsibility checked No No HDB / MCST rules applied Source fixed No Rarely Yes, before the wall Lasts beyond a season No Seldom Yes, once dry Evidence None None Photos and readings ## What it costs Seepage repairs are priced after the source is identified, because the fix ranges from resealing a window to re-waterproofing a wet area. [Try the cost estimator](/tools/waterproofing-cost-estimator/) or read the [waterproofing cost guide](/guide/waterproofing-cost-singapore/). ## Related guides - Who Pays for Water Seepage in a Singapore Condo? - Is My BTO Leak Covered by HDB's Warranty? - How to Choose a Waterproofing Contractor in Singapore ## How it is done - Map the damp. Moisture readings show where the water is entering. - Find the other side. Facade, wet area, planter, pipe or window. - Fix the source. Or route it to the Town Council or MCST if it is theirs. - Restore the wall. Plaster made good and refinished once dry. Water dripping now? Switch off any circuit near the drip, put a bucket under it and photograph the stain with the time. Then send a request and tick "dripping right now". [What to do in an active leak](/emergency-leak-repair/) Standards and methods - Moisture mapping before quoting - Ponding test 24h+ on wet areas - Membrane turned up the walls - HDB permit for hacking, via the contractor - BCA workhead CR13 for waterproofing installers Request water seepage repair A specialist calls you back to book an inspection. Request received. A specialist will contact you on the number you gave. If water is near electrics, switch off that circuit at the distribution board and keep clear until then. Get water seepage repair quoted after a proper inspection. A specialist calls you back to book an inspection. Tell us what you see and the type of home. [Request an inspection](/contact/#request) ## Questions people ask Who fixes seepage through my HDB external wall? + The Town Council looks after external facade walls. Report cracks and seepage from outside to them. What is the white powder on my wall? + Efflorescence: salts carried by water through masonry and left behind as it evaporates. It means water is moving through the wall. Can I just use anti-mould paint? + It hides the symptom for a while. Until the source is fixed and the wall dries, the paint will blister again. Is seepage covered by the new-flat warranty? + HDB's 5-year warranty for new flats covers external seepage, along with ceiling leaks. Is there a charge for sending a request? + No. Sending a request costs nothing. The specialist explains any inspection fee before the visit. ## Related services [Balcony and planter box waterproofingA planter is a box of wet soil sitting on your slab. When its lining fails, the room next door finds out.](/balcony-planter-box-waterproofing/)[Window leak repairWater around a window during a storm is the frame seal, the drainage, or the wall. Usually not the glass.](/window-leak-repair/)[Water leak detectionFind it before you hack it. Detection is cheaper than opening the wrong wall.](/water-leak-detection/)