Last updated: October 2026
Written by Hervé, Head Installer (15+ years in epoxy grouting and waterproofing)
Most leaking showers we see in Melbourne leak through failed grout and silicone, not broken pipes or a failed membrane. Water gets through cracked grout and gaps in the corners, soaks into the wall and floor behind the tiles, and shows up as stains, bubbling paint or swollen skirting outside the shower. The Seal Guys fix this by removing the old grout and silicone, regrouting with Mapei Kerapoxy epoxy grout and resealing every junction, without taking a single tile off. Most showers are done in one day, from $650 + GST for a shower base and $1,250 + GST for a two-wall shower.
Before
After
Cement grout is porous. Over years of daily showers it soaks up water, cracks and washes out, and every shower pushes a little more water into the bed behind the tiles. This is the leak we fix most often.
The silicone in the corners, along the wall-to-floor joint and around the shower screen is a maintenance item. Once it peels or splits, water runs straight behind the tiles.
Under the tiles there should be a waterproof membrane. If it has failed, water gets past it even when the grout and silicone are sound. Regrouting won't fix that on its own, and we'll tell you before you book.
A leaking pipe, mixer or waste behind the wall causes damp that's there all the time, even when nobody has used the shower. That's a job for a plumber first.
| What you notice | Most likely cause | Who fixes it |
|---|---|---|
| Damp shows up after showers and dries out in between | Failed grout or silicone | Epoxy regrout and reseal (us) |
| Cracked grout, gaps in silicone, mould lines | Failed grout or silicone | Epoxy regrout and reseal (us) |
| Damp is there all the time, even after days without a shower | Pipe, mixer or waste leak | Plumber first |
| Many loose or cracked tiles right across the shower, soft or flexing wall | Failed membrane or wall damage | Rebuild (we'll tell you honestly) |
Not sure? Send us 3–4 photos and we'll tell you straight which one it is. Regrout or retile? How to tell what your shower needs
In plain words, shower sealing means removing failed grout and silicone and replacing them with epoxy grout and new silicone so water cannot get through. Surface or spray-on sealers over old, cracked grout are not a lasting fix. Learn more about shower resealing and epoxy vs cement grout.
Cracked grout, gaps in the silicone, mould around the joints and damp that appears after the shower is used usually point to water getting through the grout and silicone. Damp that is present when the shower has not been used, or an unexplained jump in the water bill, can point to a plumbing leak. We will tell you if a plumber needs to investigate first.
| Shower | Price (ex GST) |
|---|---|
| Shower base only (includes new perimeter silicone) | from $650 + GST |
| Two-wall shower (walls + base) | from $1,250 + GST |
| Three-wall shower (walls + base) | from $1,450 + GST |
| Large or walk-in shower | from $1,650 + GST |
| Silicone replacement only | from $450 + GST |
| Small-tile and mosaic showers | individually quoted |
The final price depends on shower size, how many walls are tiled, tile size (small tiles and mosaics have more grout lines) and the condition of the grout. A full shower rebuild in Melbourne usually costs many thousands of dollars and takes weeks. Full price guide
We regularly fix leaking showers in rental properties and apartments. We can deal directly with your tenant to arrange access, keep you updated, and send a written report with photos after the job. In apartment buildings, where a leak is getting into the unit below, we can provide a written scope and quote for your owners corporation or strata manager.
“We used the seal guys at our property in mentone to reseal both of our showers with epoxy grout due to a leak that was happening, it has repaired the leak and the showers look amazing!”
“Two showers now beautifully clean and not leaking! Competitive pricing and super easy to work with!”
“Removed old grout and replaced with epoxy, replaced degraded silicone and cleaned the entire area, job took about 2.5 - 3 hours and no mess to cleanup!”
Rated 4.9★ on Google. Read our Google reviews
We fix leaking showers across greater Melbourne, including Bayside (Hampton, Brighton, Sandringham, Mentone), the inner south-east (South Yarra, Toorak, St Kilda, Elwood, Caulfield, Malvern) and the eastern suburbs (Hawthorn, Glen Waverley). A travel fee applies outside the metro area.
Yes, when the water is getting in through the grout and silicone, which is the most common cause. We remove the old grout and silicone, regrout with epoxy and reseal. The tiles stay where they are.
Look for stains or bubbling paint on the other side of the wall, swollen skirting boards, damp floors next to the bathroom, cracked grout, gaps in the silicone and mould that keeps coming back.
With us, from $650 + GST for a shower base and from $1,250 + GST for a two-wall shower. Send photos for a fixed price.
Most showers are done in one day (4–8 hours). Large or complex showers can take 2–3 days.
After 24–48 hours, once the epoxy has cured. We'll confirm the exact time on the day.
Then regrouting alone won't stop the leak. We look for the signs in your photos and on site, and we'll tell you before you book, not after.
No. If the damp is there all the time, the leak may be a pipe, mixer or waste, and you'll need a plumber first.
10-Year Warranty on eligible epoxy re-grouting work, subject to terms. Full details on our Warranty page.
Someone needs to let us in and be contactable. Many customers leave a key or arrange access through a tenant or property manager.
Leaking shower? Send us 3–4 photos (the whole shower, a close-up of the grout, the base and any damage outside the shower) to 0458 679 629 or through the quote form. We'll reply with a fixed price, usually within 24 hours.
Fill out the form below and we'll respond with a free quote within 24 hours.
