Balcony leak repair,
done properly.
Failing grout and tired sealant let water seep beneath your tiles — and often into the apartment below. SuperSealed Australia restores and waterproofs tiled balconies across Melbourne with a non-porous, waterproof epoxy grout system — in most cases without removing your tiles.
A leaking balcony is rarely just a surface problem. Water entering through failed grout joints can travel beneath your tiles — leading to efflorescence, tile movement and water staining, damage to the apartment below, mould growth and, if it's left untreated, expensive structural repairs. The sooner the cause is found, the smaller the job.
A specialist, not a generalist.
Balcony leaks are rarely a quick caulk-and-hope job. We focus specifically on tile, grout and sealant restoration — diagnosing where water is really getting in, then rebuilding the joints with premium epoxy systems built for the outdoors.
Specialist focus
Balcony and tiled-area leak repair is what we do — not a sideline. Every job is assessed on its own merits.
Premium epoxy systems
We work with high-grade, Green Star–rated epoxy grout and caulking chosen for durability, water resistance and colour stability.
Clean, contained work
Careful removal, dust control and tidy finishing — in most jobs we're in and out without ripping up your balcony.
All epoxy grout and caulking works performed by SuperSealed Australia include a 10-year product warranty.
Common causes of balcony leaks
Most leaks we see in Melbourne aren't one dramatic failure — they're the slow result of everyday wear on the surfaces meant to keep water out.
Failed grout joints
Cement grout shrinks, cracks and crumbles over time, opening direct paths for water to get beneath the tiles.
Deteriorated sealants
Perimeter and movement-joint caulking hardens, splits and pulls away, leaving gaps around edges and drains.
Movement & cracks
Buildings move and expand. Hairline cracks open in rigid cement grout and let moisture track through.
Poor drainage & falls
Water that can't drain away pools on the surface and sits on the joints, accelerating penetration.
Porous surfaces
Cement grout and many tiles are porous. Over years, water is gradually absorbed and carried below.
Failed waterproofing
Where the original balcony waterproofing has broken down, water reaches the structure — restoring the joints helps protect what remains.
How water penetrates failed grout and joints
Tiles shed water, but the joints between them do the real work. When cement grout and sealant break down, water no longer runs off — it works its way in.
- Water finds the gaps. Cracked, missing or porous grout lets rain and run-off enter the joints instead of draining away.
- It sits beneath the tiles. Trapped moisture pools on the bed and screed, with nowhere to escape.
- It finds the weak points. Over time it tracks to gaps in the original waterproofing — around drains, edges and penetrations.
- It reaches the structure. From there water moves into the slab and, eventually, the space below.
Signs your balcony is leaking
Caught early, a balcony leak is a far smaller job. These are the signs worth acting on.
Water damage to the apartment below
A leaking balcony rarely stays the balcony's problem. In apartments and townhouses, the water has somewhere to go — straight into the home beneath.
Balcony leak repairs for Melbourne apartments & strata buildings
In a multi-level building, a leaking balcony rarely stays one owner's problem — water that gets through the tiles can track straight down into the apartment below. SuperSealed regularly restores leaking balconies across:
Because these leaks can affect neighbouring properties and owners-corporation common areas, they tend to become more involved — and more costly — the longer they're left. A prompt inspection helps you understand the cause and act before the damage spreads. We work with owners, renters, owners corporations and building managers across greater Melbourne — from Southbank and Docklands apartments to homes in Preston, Reservoir and Bundoora.
White powder on your balcony tiles?
That chalky white residue on tiled balconies is called efflorescence. It's often a sign that moisture is moving through the balcony system and carrying mineral salts to the surface as it dries.
- Cleaning it doesn't fix it. Many owners scrub it off again and again — but if the moisture source is still active, it keeps coming back.
- It points to water movement. Salts being pushed to the surface usually mean water is getting in through the joints, not just sitting on top.
- Restoring the joints helps. Re-grouting failed joints with a waterproof epoxy grout system helps reduce water ingress and future deterioration.
Want the detail? Read why your balcony is leaking — and why the real cause is often in the grout.
The epoxy grout solution
We remove the failed cement grout and perished sealant and rebuild the joints with a premium epoxy grout system that's non-porous and waterproof — unlike cement grout, which soaks up water and breaks down.
Inspect & assess
We examine the balcony on site to identify where and why water is getting in.
Remove failed grout
Old cement grout, perished sealant and contaminants are cut out and cleared.
Prepare the joints
Joints are cleaned and prepped so the new epoxy bonds properly.
Apply epoxy grout
Joints are refilled with non-porous epoxy grout for a hard-wearing, water-resistant finish.
Re-seal the perimeters
Edges, movement joints and penetrations are re-sealed with epoxy caulking.
Final check & clean
We finish, clean down and walk you through the completed work.
All epoxy grout and caulking works performed by SuperSealed Australia include a 10-year product warranty.
Not sure where the water's getting in? Let's take a look.
Book an inspectionBefore & after
Real SuperSealed restorations — failed cement grout stripped back and rebuilt with a non-porous epoxy system. See more in our project gallery.
Rated by Melbourne homeowners & owners corporations
“Christian did a great job with our balcony! Before he started his work, he gave us a detailed explanation of what exactly he was doing and how much everything would cost. He was very pleasant and got the job done. We had a great experience!”
Google review
“Christian was reliable and straightforward and did exactly what he said he would do. Tarso worked diligently and the bathroom looks great! I especially liked the simple quote without hidden extras. I would recommend this company.”
Google review
“My experience was nothing short of excellent. They arrived on time with prior notifications and cleaned up after themselves. Their workmanship is impeccable — highly recommend. My tiles look like new!”
Google review
Read more verified reviews on Google.
Frequently asked questions
What causes a balcony to leak?
How do I know if my balcony is leaking?
Can you repair the balcony without removing all the tiles?
What is epoxy grout, and how is it different from cement grout?
Will re-grouting stop my balcony leaking?
Do you offer a warranty?
How long will the work take?
How much does balcony leak repair cost?
Do you service my suburb?
Balcony leak repair across Melbourne
We service apartments, units and townhouses across greater Melbourne. Don't see your suburb? Get in touch — we likely cover it.
We do a lot of work throughout Melbourne's eastern suburbs in particular, where many homes and apartments have tiled balconies exposed to the weather. We regularly restore leaking balconies in Balwyn and Balwyn North, Camberwell, Canterbury and Surrey Hills, across Box Hill, Box Hill North, Blackburn and Blackburn North, throughout Doncaster, Doncaster East, Templestowe and Templestowe Lower, and around Hawthorn, Hawthorn East, Kew, Kew East, Glen Iris, Malvern and Malvern East.
Book a balcony leak
inspection today.
Call 1300 777 464 · email admin@supersealed.com.au · or request a quote online.