A slab leak in a Glen Iris home rarely announces itself with a flood, it announces itself with a warm tile patch on the kitchen floor, a water bill that doubled, or a meter that ticks even when no water is running. By the time the leak goes acute (water emerging through grout lines, spreading hot patch), it's been leaking under the slab for weeks. Phone 0475 407 670.
We'll give you an honest arrival time when you call. We'll also talk you through isolating the hot water unit (the most common slab-leak source) to slow the leak and reduce ceiling-cavity water spread.
BPC #103414, acoustic leak detection equipment + thermal imaging for slab-leak diagnosis, ProPress copper for the bypass repair.
When you ring, helpful: roughly where the warm patch is (kitchen, bathroom, bedroom), how recent the water-bill spike was, and whether the floor is tile or carpet over slab.
For Glen Iris slab-on-ground homes:
The recurring after-hours patterns, different from the planned-work mix on our main Glen Iris service page:
Alister Williams, BPC #103414, Type A gasfitter, runs Prime Plumbing & Gasfitting.
Credentials:
Q: My water bill doubled but I can't see any leak, is it a slab leak?
Often yes, especially in 1960s-70s slab-on-ground stock. The other common causes are a running toilet or a leaking irrigation valve. A diagnostic visit, usually about 30 minutes, can identify which.
Q: I have a warm patch on the kitchen floor, slab leak?
Almost certainly. The slab-embedded hot supply is leaking and heating the concrete around the leak point. Acoustic detection confirms; bypass repair restores supply without touching the slab.
Q: Do you have to chip the slab to fix it?
Almost never. The standard repair is bypass, re-route the leaking section through the ceiling void or external wall and isolate the failed slab section. Saves the slab, saves the flooring, much cheaper than slab repair.
Q: Can the slab leak damage the foundation?
Long-term yes, under-slab water can erode the soil and cause differential settlement. Most slab leaks are caught long before foundation effects appear, but it's a reason to address them rather than wait.
Q: What does the bypass route look like?
Usually we run new copper through the ceiling void from the HW unit to the affected fixture, then drop down inside an external wall to the fixture connection point. The old slab section is capped off and isolated permanently.
Q: Will the bypass affect water pressure?
No, properly sized copper bypass maintains the original flow rate. We size the bypass to match the original supply.
Slab leaks have different first-response steps than regular leaks:
Glen Iris slab-leak callouts include:
After the emergency is stabilised, planned-work pages worth saving:
Glen Iris slab leak going acute right now? Phone 0475 407 670. Acoustic + thermal diagnostic, bypass repair, BPC #103414. For anything else urgent, see emergency plumbing across Melbourne.
For high-water-bill investigations, pre-failure slab-leak assessments, or CCTV diagnostics on slab-era stock, the form below is the right channel. Active slab-leak emergencies, phone first.
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