Balcony leaks into the unit below
The defining Gold Coast defect. Shallow set downs, poorly detailed door thresholds and drainage that does not clear the deck put water into the apartment underneath.
Gold Coast, Queensland
Waterproofing contractors on the Gold Coast
From Southport high rise towers to Burleigh renovations and Coomera new builds, HydroForce delivers certified wet area and balcony waterproofing across the Gold Coast. We understand salt air, strata programs and holiday letting deadlines.
Local knowledge
Coastal conditions change the specification
The Gold Coast presents a set of waterproofing conditions that inland South East Queensland simply does not. Salt laden air moves several kilometres inland from the beach and attacks metal fixings, flashings, screen frames and drainage components continuously. A balcony detail that would last twenty years in Ipswich can degrade in a fraction of that time in Surfers Paradise or Mermaid Beach, because the fixings holding the termination in place corrode before the membrane itself does.
Then there is the built form. The Gold Coast has the highest concentration of medium and high rise residential buildings outside the capital cities, and those buildings are dominated by balconies. Balcony leaks into the apartment below are the single most common defect category in Gold Coast strata, and the cause is almost always the same combination: a set down too shallow to allow the membrane to be dressed high enough at the sliding door threshold, drainage that does not reliably clear the deck, and penetrations for balustrade posts installed after the membrane went down. Fixing it later means lifting tiles in an occupied apartment, which is precisely why it is worth getting right at construction.
External balconies and terraces fall under AS 4654 rather than AS 3740, and the difference is meaningful. The external standard sets requirements for falls, upstand heights and terminations that account for wind driven rain, ultraviolet degradation and much wider thermal cycling than an internal bathroom ever experiences. A west facing Gold Coast balcony in February will reach surface temperatures that internal specifications never contemplate. The membrane has to be rated for that exposure, and the detail at every edge has to assume water will be driven upward, not just downward.
Finally there is the letting economy. A large share of Gold Coast apartments are short term let, and an out of service bathroom is lost revenue every week. We plan around booking calendars where owners need us to, sequence work so units come back online in a predictable order, and give realistic cure timelines rather than optimistic ones that force a second closure.
Services
Waterproofing services we deliver in Gold Coast
Every service below is available across the Gold Coast with the same specification, the same testing and the same certification.
Bathroom Waterproofing in Gold Coast
Full wet area membrane systems for renovations and new builds, covering floors, hobs, walls and every penetration.
View serviceShower Waterproofing in Gold Coast
Step down, hobless and hobbed enclosures with reinforced corners, verified falls and a full flood test before tiling.
View serviceLaundry Waterproofing in Gold Coast
Internal and upper level laundries protected against hose failure and overflow, including tub bays and floor wastes.
View serviceCommercial Waterproofing in Gold Coast
Balconies, podium decks, planter boxes, plant rooms and multi unit amenities delivered as a documented program.
View service
Common issues
Gold Coast waterproofing issues we are called to
High rise, low rise and canal front homes all present a recognisable set of problems.
Salt corrosion at terminations
Fixings, angles and screen frames corroding in coastal air, opening the termination edge and letting water behind an otherwise sound membrane.
Hobless showers in luxury fitouts
Flush and step down showers are the Gold Coast standard in premium builds. They look superb and they are unforgiving about fall accuracy.
Planter boxes on podium levels
Podium and rooftop planters sealed without a drainage layer or root resistant membrane, then quietly saturating the structure around them for years.
Post installed balustrade fixings
Balustrade posts drilled through a completed membrane and sealed with silicone rather than being set out and collared before coating.
Remediation in occupied buildings
Strata rectification that has to progress around residents, holiday guests, lift access limits and body corporate approval cycles.
Coverage
Suburbs we service across the Gold Coast
If your suburb is not listed, call us. We cover the Gold Coast and the surrounding region, and will tell you straight away whether we can service your address.
- Southport
- Surfers Paradise
- Broadbeach
- Mermaid Beach
- Burleigh Heads
- Palm Beach
- Coolangatta
- Robina
- Varsity Lakes
- Nerang
- Helensvale
- Coomera
- Hope Island
- Pacific Pines
- Currumbin
- Miami
Working with us
Working with HydroForce on the Gold Coast
Strata and body corporate experience
We report progress in a format a committee can read, work around resident access, and stage remediation so units return to service in a predictable sequence.
Coastal grade specification
External work is specified for coastal exposure, including corrosion resistant terminations, because the standard inland detail will not last here.
Letting calendar awareness
Where a unit is short term let, we plan the works window around bookings and give honest cure timelines so it only comes offline once.
AS 4654 for every external area
Balconies, terraces, podium decks and planters are treated under the external standard with correct falls, upstands and drainage detailing.
Compliance
Strata, defects and documentation
Waterproofing is consistently at the top of the defect list in Queensland multi residential buildings, and on the Gold Coast the concentration of apartment stock makes that especially visible. When a body corporate raises a defect claim, the question that decides the outcome is always evidentiary: was the membrane installed to the applicable standard, within the manufacturer's system, and can that be demonstrated. Verbal assurances from a builder who has since deregistered are worth nothing at that point.
HydroForce documents by area rather than by building. Each balcony, each bathroom and each deck gets its own photographic record covering preparation, detailing, coating and testing, tied to a unit or area number that maps to your own registers. Certification is issued progressively as areas complete rather than as a single folder at practical completion. For a builder inside a defect liability period, or a body corporate assessing a claim, that is the difference between a fast resolution and a two year argument.
HydroForce sealed 32 apartment bathrooms for us across two Gold Coast towers. Every flood test passed first go and the certificates landed before the tilers rolled in. That never happens.
Daniel Whitmore
FAQ
Gold Coast waterproofing questions
Do you do balcony waterproofing on Gold Coast apartments?
Yes, and it is a large part of our coastal workload. Balconies sit under AS 4654 rather than AS 3740, which sets different requirements for falls, upstand heights and terminations. We assess the set down depth first, because if there is not enough depth to dress the membrane high enough at the door threshold, no amount of quality coating will solve the problem and the fix has to be structural.
Can you work in an occupied strata building?
Routinely. Remediation in occupied buildings needs resident notification, staged access, dust and noise management and temporary weather protection so units stay habitable. We plan those constraints into the program from the start and report progress by unit so the committee can see exactly where things stand at any point.
Does salt air really affect waterproofing?
It affects everything around the membrane. The coating itself is generally resistant, but the fixings, flashings, angles, screen frames and drainage components that hold the detail together corrode steadily in coastal air. When a termination fixing fails, the edge lifts and water gets behind an otherwise sound membrane. Specifying corrosion resistant components at those points is why coastal detailing costs a little more and lasts far longer.
How far south and west do you travel on the Gold Coast?
From Coolangatta and Currumbin in the south up through the central beaches to Hope Island and Coomera in the north, and west through Nerang, Robina and Varsity Lakes to the hinterland fringe. If you are further out toward Tamborine or Beaudesert, call and we will let you know honestly whether we can service it well.
Can you schedule around holiday letting bookings?
Yes. Tell us the booking calendar at enquiry stage and we will build the works window around it. The important part is that we give you a realistic cure timeline including tiling and grouting, so the unit only comes offline once instead of being relisted too early and then closed again.
Do you handle waterproofing for new Gold Coast builds as well as repairs?
Both. We deliver staged programs for new residential and mixed use construction, and we take on remedial work in existing buildings. The advantage of engaging us at construction stage is that we can review set down depths and threshold details before the concrete is poured, which prevents the most expensive category of defect entirely.
Contact us
Book a free Gold Coast site inspection
Send your project details through and a HydroForce supervisor will call you back the same business day to arrange an inspection anywhere in the Gold Coast.
- 07 3180 4422
- quotes@hydroforce.com.au
- Servicing the Gold Coast and South East Queensland
- Monday to Saturday, 6:30am to 5:00pm