# Leak and Waterproofing Guides for Singapore Homes | Seepwise

> Guides on leak repair and waterproofing in Singapore: who pays for HDB ceiling leaks, GRA, BTO warranties, condo seepage rules, costs and how to choose a contractor.

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# Leak and Waterproofing Guides

Straight answers on costs, rules and what to do next, sourced from HDB, MND, BCA and published Singapore price data. 

## Ceiling leak repair

 [RulesIs My BTO Leak Covered by HDB's Warranty?Is a leak in your BTO flat covered? The one-year defects liability period, HDB's 5-year warranty on ceiling leaks and external seepage, and what voids it.](/guide/bto-leak-warranty/)[What to do nowCeiling Leak From Upstairs: What to Do FirstWater leaking from the flat upstairs? Contain it, stay clear of wet electrics, record it, talk to your neighbour, then get the source confirmed in writing.](/guide/ceiling-leak-from-upstairs-what-to-do/)[Cost guideHow Much Does Ceiling Leak Repair Cost in Singapore (2026)?Ceiling leak repair cost in Singapore: the repair happens upstairs, the bill is often shared, and HDB's GRA has co-paid 50%. Published 2026 ranges explained.](/guide/ceiling-leak-repair-cost/)[RulesWho Pays for an HDB Ceiling Leak?Who pays for an HDB ceiling leak: the shared slab rule, HDB's Goodwill Repair Assistance 50% co-payment, renovation-caused leaks and top-floor roof leaks.](/guide/hdb-ceiling-leak-who-pays/) 

## Toilet waterproofing

 [Decision guideHacking vs Non-Hacking Waterproofing: Which Fixes Your Leak?Hacking vs non-hacking waterproofing in Singapore: re-screeding renews the membrane, PU injection seals the leak path. When each fits, costs and permit rules.](/guide/hacking-vs-non-hacking-waterproofing/)[RulesDo You Need an HDB Permit for Toilet Waterproofing?Do you need an HDB permit to redo toilet waterproofing? Hacking bathroom floors generally needs one, applied for by your renovation contractor. New-flat rules explained.](/guide/hdb-permit-toilet-waterproofing/)[Decision guideWhat Is a Ponding Test, and Why Does It Matter?A ponding test floods a newly waterproofed floor for at least 24 hours to prove the membrane holds before tiles cover it. How it works and what to ask for.](/guide/ponding-test-waterproofing/)[Cost guideHow Much Does Toilet Waterproofing Cost in Singapore (2026)?Toilet waterproofing cost in Singapore, line by line: hacking, membrane, screed, ponding test, tiles and GST, using published 2026 contractor ranges.](/guide/toilet-waterproofing-cost/)[Cost guideHow Much Does Waterproofing Cost in Singapore (2026)?Waterproofing cost in Singapore for 2026: published ranges for toilet waterproofing, hacking, spalling repair, and why roofs and leaks are quoted after inspection.](/guide/waterproofing-cost-singapore/) 

## Roof waterproofing

 [Decision guideHow to Choose a Waterproofing Contractor in SingaporeHow to choose a waterproofing contractor in Singapore: BCA's CR13 workhead, what an itemised quote should list, the ponding test, permits and warranty terms.](/guide/how-to-choose-waterproofing-contractor/) 

## Roof leak repair

 [What to do nowTop-Floor HDB Ceiling Leak: Who Fixes the Roof?A top-floor HDB ceiling that leaks after rain is a roof leak. The roof is common property, so the Town Council repairs it. How to report it and what to record.](/guide/roof-leak-top-floor-hdb/) 

## Water seepage repair

 [RulesWho Pays for Water Seepage in a Singapore Condo?Who pays for water seepage in a Singapore condo: unit versus common property, BCA's joint-inspection advice, private settlement of damages and the Strata Titles Boards.](/guide/condo-water-seepage-who-pays/) 

## Spalling concrete repair

 [RulesDoes HDB Pay for Spalling Concrete Repairs?Does HDB pay for spalling concrete? New flats have a 10-year warranty, HIP repairs it free, and after the defects period HDB's GRA co-pays 50%.](/guide/hdb-spalling-concrete/)[What to do nowIs Spalling Concrete Dangerous?Is spalling concrete dangerous? Early hairline cracks are not, but bulging or loose ceiling concrete can fall. Warning signs, what to do now, and HDB's advice.](/guide/is-spalling-concrete-dangerous/)[Cost guideHow Much Does Spalling Concrete Repair Cost in Singapore?Spalling concrete repair cost in Singapore: around S$300 for a small patch to S$1,200 for a whole HDB toilet ceiling (2017 figures), and when HDB pays half.](/guide/spalling-concrete-repair-cost/) 

## Water leak detection

 [Decision guideWater Dripping From the Ceiling: Aircon, Pipe or Slab?Water dripping from your ceiling? Tell an aircon water leak from a pipe leak or a floor-slab leak by when it happens, where it is and what it looks like.](/guide/water-dripping-from-ceiling-aircon-or-pipe/) 

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