# Waterproofing Cost Estimator Singapore (2026) | Free Tool | Seepwise

> Free waterproofing cost estimator for Singapore: toilet re-waterproofing, hacking, spalling and ceiling leaks, using published 2026 ranges with sources. HDB share shown.

URL: https://waterproofing.affiliateinsider.buzz/tools/waterproofing-cost-estimator/

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# Waterproofing Cost Estimator

A range for your job in seconds, built only from published Singapore figures. Every number shows its source. 

Your estimate 
S$1,600 to S$4,000 
 
Ranges: toilet package and hacking from 2026 contractor guides ([Triton](https://www.tritoncon.sg/blog/waterproofing-cost-singapore), [PRDT](https://www.prdt.com.sg/blog/bathroom-renovation-cost-singapore/), [Hock Star](https://hockstar.sg/bathroom-renovation-cost-singapore/)); spalling from [PropertyGuru (2017)](https://www.propertyguru.com.sg/property-management-news/2017/1/144444/fix-spalling-concrete-before-it-becomes-a-serious-problem). Tiles quoted separately. 

Get an exact quote 
The estimate is a range. A specialist confirms the price after inspecting. 
 
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. 

## About the estimator

 Where do these prices come from? + 
From published 2026 Singapore contractor price guides for toilet waterproofing and hacking, and a 2017 PropertyGuru report for spalling repairs. Each figure links to its source on this page. Why does the roof option not give a number? + 
There is no reliable published Singapore per-square-metre rate for landed roofs; the surface condition drives the price, so roofs are quoted after inspection. Is GST included? + 
Tick the GST box to add 9%. Many quotes exclude it, which is a common surprise.