# Window Leak Repair Singapore | Frames, Sealant and Weep Holes | Seepwise

> Window leak repair in Singapore homes: water coming in around window frames during storms, traced to sealant, weep holes or wall cracks and fixed.

URL: https://waterproofing.affiliateinsider.buzz/window-leak-repair/

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# Window Leak Repair in Singapore

Water around a window during a storm is the frame seal, the drainage, or the wall. Usually not the glass. 
 [Request an inspection](#request) 

Last updated: 2026-10-10 
[Seepwise](/) arranges window leak repair for Singapore homes where water comes in around window frames during heavy rain. In HDB flats, windows are among the fittings the owner is responsible for ([HDB](https://www.mynicehome.gov.sg/hdb-how-to/maintain-your-flat/)), so this is a job you arrange yourself. 

## What happens on the first visit

The specialist checks the sealant around the frame, the weep holes at the bottom of the frame track, the joints in the frame itself, and the wall around the opening for cracks. A controlled water test on the outside, where safe, shows exactly where water crosses into the room. 

## Where window leaks come from

- Perimeter sealant shrinking and cracking in the sun, opening a gap between frame and wall
- Blocked weep holes so water collects in the track and overflows inward
- Frame joints opening at the corners
- Wall cracks beside the window carrying water around the frame 

## Timing: the storms that find them

Window leaks show during wind-driven rain, which in Singapore means monsoon surges in December and January and the afternoon thunderstorms of the inter-monsoon months, late March to May and October to November ([World Bank](https://climateknowledgeportal.worldbank.org/country/singapore/climate-data-historical)). Book the inspection while the pattern is fresh. 

## The repair

Failed sealant is removed and replaced with a compatible sealant, weep holes are cleared, frame joints resealed, and any wall cracks injected. If water has already damaged plaster below the window, that is made good after the leak is fixed. 

## What is included

- ✓Sealant, weep holes and joints checked
- ✓Wall cracks around the opening checked
- ✓Controlled water test where safe
- ✓Old sealant removed, new sealant applied
- ✓Weep holes cleared
- ✓Frame joints resealed
- ✓Cracks injected where needed
- ✓Interior made good after 

## Painting over it vs a quick fix vs a proper repair

 DIY Quick fix Proper repair 
 Approach Silicone over the gap More sealant on top Old sealant out, cause fixed 
 Weep holes Unknown Ignored Cleared 
 Wall cracks Missed Missed Checked and injected 
 Tested Next storm Next storm Water test 
 Lasts Months Months Years 

## What it costs

Window leaks are priced per opening after inspection. 
[Try the cost estimator](/tools/waterproofing-cost-estimator/) or read the [waterproofing cost guide](/guide/waterproofing-cost-singapore/). 

## Related guides

- How to Choose a Waterproofing Contractor in Singapore
- How Much Does Waterproofing Cost in Singapore (2026)? 

## How it is done

- Inspect. Sealant, drainage, joints and wall.
- Test. Controlled water test where safe.
- Repair. Sealant replaced, weep holes cleared, cracks injected.
- Make good. Interior plaster and paint after. 
 
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 window leak 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 window leak 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 a leaking window in an HDB flat? + 
The owner. HDB lists windows among the fittings owners are responsible for. Facade cracks outside the window are the Town Council's. Why does my window only leak in storms? + 
Wind-driven rain pushes water into gaps that ordinary rain never reaches: perimeter sealant, frame joints or blocked weep holes. Can I fix it with silicone myself? + 
Silicone over old, failed sealant rarely bonds. The old sealant has to come out first. Is it the glass? + 
Rarely. Most window leaks are at the frame perimeter, the joints or the drainage. 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

 [Water seepage repairBubbling paint and white powder on a wall are water moving through it. The source decides the fix.](/water-seepage-repair/)[Water leak detectionFind it before you hack it. Detection is cheaper than opening the wrong wall.](/water-leak-detection/)[Roof leak repairWater coming through during a storm needs the entry point found, not a new roof.](/roof-leak-repair/)