Melbourne tiled balcony specialists

Balcony Regrouting & Leak Repair in Melbourne, Without Removing Tiles

Last updated: October 2026 · Written by Hervé, Head Installer (15+ years in epoxy grouting and waterproofing)

Yes, most leaking tiled balconies can be fixed without lifting a single tile. The Seal Guys regrout and reseal tiled balconies across Melbourne with Mapei Kerapoxy epoxy grout. We cut out the failed grout and sealant, clean the joints, regrout with epoxy and reseal the perimeter, door threshold and balustrade posts, which is where most balcony water gets in. Balconies up to 5 m² start from $2,200 + GST. We check for membrane, drainage and structural problems first, and if regrouting won't fix your leak, we'll tell you before you book.

Tiled balcony before epoxy regrouting and resealing in MelbourneTiled balcony after epoxy regrouting and resealing in MelbourneAfterBefore

Balcony leak signs to look for

  • Water stains, drips or bubbling paint on the ceiling or wall below
  • white powder (efflorescence) coming out of the grout lines
  • Cracked or missing grout, and failed sealant along the walls
  • Hollow-sounding (drummy) tiles
  • Damp carpet or musty smells in the room next to or below the balcony

Can a leaking balcony be fixed without removing tiles?

Often, yes. On most tiled balconies the water doesn't come through the tiles. It comes through the gaps around them:

  • Cracked or crumbling grout between the tiles
  • Failed sealant where the tiles meet the walls (the perimeter)
  • The door threshold, where the balcony meets the sliding door
  • Balustrade posts and other fixings drilled through the tiles
  • Around the floor waste (the drain)

Once water gets past these points, it soaks into the bed under the tiles and runs to the lowest spot it can find, which is often the ceiling of the room or apartment below. Sealing every entry point with epoxy grout and new sealant stops the water at the surface. Nothing needs to be demolished, there's no new tiling, and there's far less noise and mess for you and your neighbours.

When regrouting won't fix a balcony leak

Regrouting and resealing are surface repairs. They don't replace the waterproof membrane under the tiles. It probably won't be enough on its own if:

  • The membrane under the tiles has failed or was never installed properly
  • Water pools on the balcony because the floor doesn't slope (fall) towards the drain
  • The screed (the sand-and-cement bed under the tiles) is cracked or breaking up
  • Many tiles are loose or drummy across the whole balcony
  • There is concrete cancer, rusting steel or other structural damage

We look for these when we inspect your photos or visit, and we tell you upfront. If your balcony needs a membrane replacement or a rebuild, we'll say so rather than sell you a regrout that won't last.

How much does balcony regrouting cost in Melbourne?

Balcony sizePrice ex GST
Up to 5 m²from $2,200 + GST
6–8 m²from $2,400 + GST
9–12 m²from $3,100 + GST
13–20 m²from $4,000 + GST
Over 20 m²individually quoted

These prices include epoxy regrouting of the tiled area and resealing the perimeter. What changes the price:

  • Tile size: small tiles and mosaics mean many more metres of grout
  • Condition: very hard or badly deteriorated grout, or existing epoxy that has to be ground out
  • Extra items: door thresholds, drains, balustrade posts, drummy tiles, efflorescence (white powder) cleaning
  • Access: upper-level balconies, and furniture or planters that need moving

Send 3–4 photos and rough measurements for a fixed price. Photo quotes are free.

What's included in a balcony regrout and reseal

  1. Inspect: we check the grout, sealant, threshold, posts, drain and falls, and tell you what's causing the leak.
  2. Remove: we cut out the deteriorated grout and failed perimeter sealant.
  3. Clean: we clean the joints and remove efflorescence where it's needed.
  4. Regrout: we fill every joint with Mapei Kerapoxy epoxy grout, which is non-porous and doesn't need sealing.
  5. Reseal: we reseal the perimeter, movement joints, door threshold and balustrade penetrations, as quoted.
  6. Clean up: we do a final clean and take all waste away.

Epoxy vs cement grout on a balcony

Cement grout is porous. Outdoors it soaks up rain, cracks as the balcony heats and cools, and lets water through to the bed below. Epoxy grout is non-porous and far more resistant to water, staining and mould, which is why we only use epoxy (Mapei Kerapoxy) and never cement grout. epoxy vs cement grout

Apartment balconies and owners corporations

Many of the balconies we treat are in apartment blocks, where the leak shows up in the unit below. In most buildings, balcony works need owners corporation approval before they start. Whether the owner or the owners corporation pays usually depends on whether the balcony is lot property or common property, so check with your strata manager. We can provide a written scope and quote for the committee or strata manager. Why is my balcony leaking into the apartment below?

Weather and timing

Balcony work needs dry weather before and after the job. We book around the forecast. On the quote we confirm how long the job will take and how long to stay off the balcony while the epoxy cures.

Warranty

10-Year Warranty on eligible epoxy re-grouting work, subject to terms.

What Melbourne customers say

"Very happy with the re-grouting work completed on our bathroom and balcony. The team was professional, efficient, and the finish looks fantastic."

Shrinidhi, Google review, 2026

"…fixed my leaking balcony very quickly. They also helped with bathroom waterproofing prevention and came back afterwards to check everything was working well."

Jingjing, Google review, 2026

Rated 4.9★ on Google. Read our reviews

Balcony regrouting FAQs

Can you fix a leaking balcony without removing tiles?

Often, yes. When water is getting in through the grout, perimeter sealant, door threshold or balustrade posts, epoxy regrouting and resealing stops it without lifting a tile.

Will it stop the leak into the apartment below?

If the water is getting in through the grout and sealant, yes. These are surface repairs, though. They don't replace a failed membrane, which is why we inspect before we quote.

How much does it cost to regrout a balcony in Melbourne?

From $2,200 + GST for balconies up to 5 m², $2,400 + GST for 6–8 m², $3,100 + GST for 9–12 m² and $4,000 + GST for 13–20 m². Larger balconies are quoted individually.

Do I need owners corporation approval?

In most apartment buildings, yes. We can give you a written scope and quote for the committee or strata manager.

How do I know if it's the grout or the membrane?

Cracked grout, failed sealant and white powder coming out of the grout lines usually point to surface entry. Water pooling, many loose tiles or cracking concrete point to a deeper problem. Send photos and we'll tell you which it looks like.

What tiles can you do?

Most ceramic and porcelain tiles. Natural stone and textured tiles need an inspection.

Which areas do you service?

All of greater Melbourne. A travel fee applies outside the metro area.

Get a fixed balcony quote

Send photos of the whole balcony, a close-up of the grout and any damage below, plus rough measurements, to 0458 679 629 or through the quote form. We'll reply with a fixed price.