Whether you need urgent emergency repairs, routine home maintenance, or a turnkey residential and commercial renovation, the Rubel Builders SG team delivers certified workmanship with transparent, upfront pricing across all Singapore districts.
Connect directly with a Singapore project specialist now. Send a photo via WhatsApp or call for immediate assistance and transparent quotes.
Leaking into the unit below or damp walls after rain? We redo the waterproofing properly so it stays dry.

When waterproofing fails, water reaches the slab and shows up as leaks, stains and mould — often in the unit below. Sealing the grout is rarely enough; the membrane underneath has to be redone.
We remove the old finishes, apply a new waterproofing membrane, water-test it and finish with new screed and tiles.

Sound familiar? Send us a photo on WhatsApp and we'll tell you what it takes to fix it.
Leaking into the unit below
Damp or mouldy wall
Roof leaks after rain
Hollow or lifting tiles
Waterproofing for every wet area and exposed surface.
01Re-waterproofing of bathroom floors and walls, including hacking, membrane, water test and re-tiling.
02Waterproofing for flat roofs, roof terraces and exposed slabs.
03Protection for external walls, balconies, planters and other floors exposed to water.
| Job | From | Includes |
|---|---|---|
| Bathroom WaterproofingHacking, membrane, water test, tiling | Ask for quote | Hacking, membrane, water test, tiling |
| Roof WaterproofingSurface prep and membrane | Ask for quote | Surface prep and membrane |
| Wall & Floor WaterproofingSurface prep and coating | Ask for quote | Surface prep and coating |
Every job is different. Send a photo for a quick price range — the final quote is confirmed before work starts.
From photo to finished job in four simple steps.
WhatsApp us a photo or short video of the job.
We reply with a clear price range before any work starts.
A technician comes at a time that suits you and confirms the scope.
Job completed and the work area cleaned up.
No site visit needed to get a price range.
Straight answers, fair prices and waterproofing services done properly the first time.
We test the new membrane before closing it up, so you know it holds.
You know the price and scope before any work begins — no surprises.
Plumbing, waterproofing, electrical, carpentry, flooring and painting under one team.
Call or WhatsApp any day of the week, including weekends.
A few photos from our work. Click any photo to see it larger.
Based on 60 Google reviews
Surface sealants help with minor grout issues, but a failed membrane can only be fixed properly by removing the tiles.
Usually several days, because each layer needs time to cure. You get the exact timing in your quote.
Some works in HDB flats and condos need approval from HDB or your MCST. We tell you before starting if your job does.
Geylang, Kallang, Toa Payoh, Bishan
Bedok, Tampines, Pasir Ris
Hougang, Sengkang, Punggol
Jurong, Clementi, Bukit Batok
Woodlands, Yishun, Sembawang
Call or WhatsApp us — open daily 8 AM to 10 PM.