Professional toilet & bathroom waterproofing service in Shah Alam. If the ceiling under your bathroom has stains, the slab is leaking. We strip back the failing waterproofing layer, treat the substrate, and apply a proper two-coat membrane that actually lasts — flood-tested before we sign off.
If your problem matches one of these, you've already had it diagnosed for free. WhatsApp a photo and we'll quote.
The bathroom above is the source — patching the ceiling alone won't fix it.
Wicking through grout lines into adjacent rooms.
Failed seal around the trap letting sewer gas escape.
White salt deposits — water is moving through the slab.
Long-term seepage breaking down the slab-side render.
Doing it right before tile-down, not after the leak appears.
Flat-rate, not by the hour. The price below is for the listed scope on a standard Shah Alam home. We confirm the exact number on WhatsApp before booking.
Prices include parts, labour and disposal. Out-of-hours emergency calls carry an after-hours premium (see Emergency). Custom installs and complex retrofits are quoted on a site walk.
Every job in Shah Alam follows the same four-step flow. You'll know what's coming, what it costs, and what happens after we leave.
Moisture meter, dye trace, sometimes a thermal pass on the ceiling. We confirm waterproofing is the actual cause before strip-out.
Remove tiles, screed and old membrane in the affected zone. Photos every stage.
Acrylic primer, polyurethane or cementitious membrane, two-coat minimum, fillet at floor-wall junction.
24-hour ponding test. Once it passes — fresh screed, tile-down, grout, sealed silicone joints.
We don't drive back to the supply house mid-job. Here's what's on the van for this service.
Honest call. Not everything is an emergency — but some things compound fast.
Real work from real Shah Alam customers in the past few months.
Most Shah Alam terraces built 2000–2010 used cementitious waterproofing as the only barrier. That product has a real-world service life of 12–18 years in Malaysian humidity — and we're now past that window for a lot of housing stock.
Older bathrooms in Seksyen 7, 8 and 13 are increasingly showing seepage stains in the unit (or floor) below. The problem isn't the tiles or the grout — it's the membrane underneath that's reached end of life.
Newer condos (i-City, U10, Setia Alam Sentral) typically use modern PU systems with a longer service life — but installation quality varies wildly. We've seen high-end towers with bathrooms leaking inside 5 years of completion because the developer's sub-con skipped corners.
"Ceiling in the lounge had a brown stain that kept coming back after we painted it. Prime Plumber diagnosed it as the bathroom slab above, stripped and re-membraned it properly, flood-tested it. Six months later the ceiling is dry for the first time in three years."
We're Shah Alam-only on purpose. Twelve neighbourhoods, every Seksyen. Fast response, deep familiarity with local plumbing quirks.
Prime Plumber Shah Alam is a trained local plumbing contractor based out of Seksyen 13. Since 2014 we've completed over 2,400 plumbing jobs across every Seksyen of Shah Alam — including hundreds of toilet waterproofing jobs in landed homes, condos and shoplots from Setia Alam to i-City, Bukit Jelutong to Kota Kemuning.
For toilet waterproofing specifically, our crew brings twelve years of hands-on experience on Shah Alam plumbing stock — pre-2000 galvanised systems in older Seksyen 7 and 13 terraces, modern PPR in i-City and Setia Alam Sentral towers, and everything in between. We carry original parts from trusted brands (Joven, Alpha, Rinnai, Geberit, Johnson Suisse) and pass trade pricing through to you. Best-price flat-rate quotes are confirmed in writing on WhatsApp before any work begins — you see the number before we book.
What sets us apart from the average Klang Valley plumber: we work Shah Alam only. That tight geographic focus means our average response time on weekday calls is 30 minutes, our parts inventory is matched to the local water stock and pipe age, and our reputation is tied to one neighbourhood. Most of our work comes from neighbour-to-neighbour referrals — and we keep it that way by doing each job properly the first time.
If you're weighing up toilet waterproofing options, or you're not sure whether toilet waterproofing is the right scope for what you're dealing with, WhatsApp Prime Plumber Shah Alam a photo. We diagnose 90% of plumbing issues remotely and reply within ten minutes during opening hours. You can also browse all 18 plumbing services we offer or check which Shah Alam Seksyens we cover.
WhatsApp us a photo. Quote and ETA inside ten minutes during opening hours.
