Most Popular
Shower Waterproofing
from $495Complete strip, membrane, fall & seal systems for standard and custom showers — usually finished in one day.
Explore serviceStarting from
from $145/m²
Turnaround
3–7 days depending on area
Warranty
15 years
Coverage
Sydney & greater NSW
Balcony Waterproofing
What is included
A balcony is the single most common entry point for water into an apartment building. We strip and replace failed waterproofing layers with a compliant membrane system, install new drainage scuppers and overflows, protect the slab, and apply a traffic-rated finish that suits how you actually use the space.
We work inside occupied apartments with minimal disruption — protection down, clean down daily, and no drilling into structural waterproofing layers.
Our scope of work
- Removal of failed tiles, screed and old membrane
- Slab repair, crack treatment and levelling
- Two-coat liquid-applied waterproof membrane
- New or replaced drainage scuppers and overflows
- Threshold and door junction sealing
- Tiling or traffic-rated protective coating
When you need it
- Water tracking into ceilings below
- Ponding water on tiled decks
- Body corpora and strata rectification work
- Pre-purchase and pre-listing inspections
Guarantees
- Warranty period
- 15 years
- Licence
- Builder’s Licence No. 000000C
- Insurance
- Public liability
- Documentation
- Photo report + certificate
How it works
Our waterproofing process in five clear steps.
No mystery, no surprise invoices. You know exactly what is happening, when, and what it costs — from the first phone call to the final warranty certificate.
01
Book & Assess
Call, message or send photos. We respond within the hour and confirm a fixed price before committing to a visit.
02
Diagnose Properly
On-site pressure, flood and moisture testing with thermal imaging to pinpoint the actual failure — no guesswork.
03
Strip & Prepare
Old sealant, grout and membrane removed, substrate repaired, primed and ready. Full protection and dust extraction.
04
Waterproof & Seal
Bond-breaker, primer, membrane coats, falls and flexible sealant applied to specification with correct joint profiles.
05
Test & Document
Flood test, photographic report, warranty certificate issued and the space handed back ready to use.
Our work
Full gallery
Recent balcony waterproofing projects
Chatswood
Shower Strip & Re-Seal
Marrickville
Balcony Membrane & Re-Tiling
Bondi Junction
Epoxy Grout Floor Upgrade
More services
Other ways we can help
One call covers leaks, waterproofing, regrouting and the finish off. You will never be passed from trade to trade.
Most Popular
Emergency 24/7
Leak Detection & Repairs
from $395Thermal, acoustic and moisture-trace diagnostics that find the leak before anyone starts breaking tiles.
Explore service
Full Wet Area
Bathroom Waterproofing
from $1,250Whole-of-bathroom membrane systems for renovations, extensions and new builds.
Explore service
Kitchen & Splashback Sealing
from $395Benchtop-to-splashback junctions, sinks and floor edges resealed properly — not just re-silicone.
Explore service
Specialist
Pool & Spa Waterproofing
Custom quoteChloride-resistant, bondable membranes for pools, spas, water features and planters.
Explore service
Tiling & Grout Regrouting
from $295Epoxy and cementitious regrouting that restores colour, kills mould and outlasts the original job.
Explore service
Good to know
Frequently asked questions
Straight answers to the questions we are asked most often across Sydney.
How much does balcony waterproofing cost?
from $145/m² is our starting price for a standard balcony waterproofing job in metropolitan Sydney. Final pricing depends on the size of the area, the condition of the substrate, access and whether any tile or substrate repair is required. We confirm a fixed, itemised price before work begins — never an hourly estimate that grows.
How long does balcony waterproofing take?
Expect 3–7 days depending on area. Most jobs of this type are completed in a single visit by a licensed tradesman, with the area protected, cleaned and left ready for use. Larger works such as balcony rectification may take several days depending on access and the extent of tile removal.
Is balcony waterproofing covered by a warranty?
Yes. This service carries a written 15 years warranty, issued with a photographic record of the installation. The certificate covers both labour and materials for the waterproofing work we performed. If anything we installed fails inside the warranty period we return and rectify it at no charge.
Do you need access to the property first?
Not to give you a price. Send photos of the affected area through our quote form and we will come back with a fixed price, usually within the hour. We only attend the property for a formal inspection when the photographs are inconclusive or when a certificate is required by your body corp, insurer or tiler.
Ready when you are
Need balcony waterproofing in Sydney?
Send photos of the area and we will come back with a fixed price for balcony waterproofing, plus the earliest appointment available.