My terrace house have 2 toilets upstairs, both have leaking problem and cause the lower floor ceiling having cracks and rust. Pictures below are actual photos of the ceiling under the toilets.

A contractor told me this can be done by completely hack away and redo the floors of both toilets, add in water prooving. But this method will create a lot of havoc. I also heard of the new nano technology but don't know much about it.

Can sifus help me make a decision: traditional method / nano?

Front toilet:


Back toilet:




This post has been edited by advTech: Aug 25 2024, 04:53 PM

Old method hack with proper waterproofing = at least 10year no headache but lots of work and dust ,
New method less work and faster to complete but 3-5years problem come back

This one too far gone for nano treatment.

Still need to hack, redo the waterproofing and then redo the tiles. If pipes, need to replace all the leaking pipes.

As for waterproofing, don't use those water based ones. Won't last long. Opt for bitumen based. Stinks but will last easily 10 years. And when applying, make sure at least 2 ft from floor to wall too. Applying multiple coats just to make sure.

Lazada got sell those invisible paint for waterproofing. Can directly paint on the tiles. One can is like RM20. Maybe can try and see first. If cannot then hack lo

Need to identify whether it's the floor or pipe.
If floor, you can do Nano (if u don't want to hack option & redo waterproofing).. But this are temporarily fix, it will come back... Just don't know when only.

Mine also face this problem...
But mine is apartment.....
The upper floor say they toilet also same so wait for 3rd floor to repair first....
But 3rd floor is use to rent as Airbnb I think cos everytime different people stay...
So thinking got any way to repair without hacking and wait for upper floor owner....

Just hack and redo the floor waterproofing. It will not be that messy since it is in confined space. I think it is just a quick job. Just hack shallow depth only on floor and few inches on wall inside bathroom.

Anyway, need to find root cause first. Was it caused by cracked floor due to house structure shift? Probably leak is just around the water outlet.

No way to repair from underneath. If you put some king of waterproofing material at that location, the water will sip to another location.

Just need to inform apartment management to inform the owner of the troubled unit.

Once report to Property MGT............the fight begins

Well I'm facing the same leakage problems as we speak now and the different is only that mine is condo and yours landed now.

As for condo I'd to pay for affected unit and communicate with them and management, very super leceh.

For landed if it's washroom u can opt to not use the current host and redo a new 1 without hacking....a lot landed doing this....
2nd option is you hack but dunno which part if causing the issues and would take times to identify and costly....

Both requiring water proofing, 1 way is using self DIY e proxy if the toilet is seldom use and less wet kind else for long run need redo the water proofing depending on your size ranging at a minimum of 2k onwards...good luck

inform management already,
management say the problem inside the unit is owner self settle...
upper floor owner know already just 3rd floor owner missing i think....

I know it is the owner problem but I was thinking that the 3rd floor owner might not know the problem and hoping the management will contact to inform the owner.

This article may give you idea what to do next

https://jomtanyapeguam.com/kebocoran-antara...hak-pengurusan/

my house also 2 upstairs toilets leak .
tried many sealing product around 25 rm each .. not effective /still slow leak

decided to try nippon epoxy as can DIY easy . under coat, and epoxy cost around 300 rm .
already 4 year now , no issues.

you can also try product s with polyurethane . this 1 easy to apply .
POLYURETHANE WATERPROOFING DELIVERS DURABLE PROTECTION. Polyurethane waterproofing products are excellent materials for waterproofing, which is an absolute must during most construction processes. Polyurethane waterproofing products protect buildings from water and humidity, as well as providing excellent UV resistance


https://swcconstruction.com.sg/blogs/nano-c...-waterproofing/

i use those ladaza rm15.00 waterproofing clear paint. of course i ask my upstairs to cooperate for 2 days and not use their toilet. Its the toilet bowl connection to the pipe that is leaking. Start with 1 coat, blow dry with hair dryer, then apply at least 4 more layers , everytime let it dry first and reapply. Works and already 1 year no leaking....

what estimate price for this??

the management need to send the borang 28, if no reply in the time, management can fix it then charge back to the owner, check with your MO what to do.

Wah I didn't know that this issue affects so many people....

May I know, do you employ ppl to do or DIY?

DIY .
buy from shopee
follow instruction as on the can
Learn from some videos on youtube.

I get it that the epoxy part I can DIY. Now take a look at the actual photos of my ceiling downstairs, Do I still have to find contractors to repair these?

Front toilet:


Back toilet:

wow some parts bad. i think .
I not sure what s the best to fix these , not sure if cement structure still strong and holding .

hope have some k expert here can suggest . their view .
if not get contractor s and see what he say ... how to fix this.

Anybody know any contractors that are good in this kind of work? I think I need to do it fast.