Expert Waterproofing Services in Melbourne

In Melbourne, waterproofing typically costs between $50 and $100 per square metre for standard wet areas like bathrooms and laundries. Balcony and rooftop membrane systems range from $80 to $150/m² depending on the system (torch-on, liquid, or sheet membrane) and surface preparation required. Leak detection and repair jobs are priced on inspection. We provide free, detailed quotes with no hidden costs — so you know exactly what to expect before work begins.

A standard bathroom waterproofing takes 2 to 4 days including surface prep, membrane application, and curing time. Balcony membrane systems take 3–5 days depending on size and weather. Torch-on and liquid membrane roofs may take 1–2 weeks for larger commercial areas. We always provide a clear timeline in your quote and work efficiently to minimise disruption — especially important for body corporate and commercial clients.

Yes — all quotes are completely free and no-obligation. We'll inspect your property, identify the source of any leaks or risk areas, discuss the best membrane system for your needs, and provide a detailed written quote with transparent pricing. Request your free quote here or call us on +61 469 818 465.

All our waterproofing work carries a minimum 7-year warranty as required by Victorian building regulations. Torch-on membrane and commercial systems include extended manufacturer warranties up to 10–15 years where applicable. If any issues arise due to our workmanship or materials, we'll return and rectify them at no cost. We also provide warranty certificates for body corporate and insurance claims.

Yes — all our waterproofing work fully complies with AS 3740 (waterproofing of domestic wet areas) and AS 4654 (external waterproofing). We use certified membranes, follow correct application procedures, and provide compliance documentation for building inspections, strata records, and insurance purposes. Non-compliant waterproofing is one of the leading causes of building defects in Australia — we never cut corners.

In some cases, yes — liquid membrane systems can be applied directly over existing tiles if the substrate is sound, clean, and properly prepared. This is a popular option for balcony leak repairs and shower recesses where tile removal would cause excessive disruption. However, for bathrooms and areas with failed waterproofing, we typically recommend removing old tiles to ensure the new membrane bonds directly to a solid substrate. We'll assess your situation and recommend the best approach.

We service all Melbourne suburbs — from Narre Warren and the outer southeast to the CBD, northern suburbs, western suburbs, and the Mornington Peninsula. Based in Narre Warren, our team of 10+ waterproofing specialists travels across the entire metro area. If you're unsure whether we cover your location, just give us a call.

The most common causes are failed or improperly applied waterproofing membrane, cracked grout or silicone, movement in the building structure, and blocked drainage. In Melbourne's climate, thermal expansion and contraction can stress membranes over time. Balconies are particularly vulnerable due to exposure to rain, sun, and temperature swings. We use leak detection equipment to pinpoint the exact source before recommending repair — whether that's localised resealing, membrane reapplication, or full remediation.