Case Study: No Hot Water in Cheltenham — Emergency Hot Water Replacement Done the Same Day

The Call

6:45am. A family of five in Cheltenham woke up to cold water only. Their storage hot water system had failed overnight. With morning routines for five people, school drop-offs, and a work-from-home parent on back-to-back calls, this wasn't a situation that could wait. They called Around The Clock Plumbing at 7am. A licensed plumber was on site by 9.

The Diagnosis

The unit was a 13-year-old gas storage hot water system. Our plumber found the sacrificial anode had completely deteriorated. Without it, the tank had corroded through — rust-coloured water was visible in the pressure relief valve outlet. This is not an uncommon failure mode. Most hot water systems last between 8 and 12 years. Anodes should be inspected every 5 years — something most homeowners don't know. Repair wasn't viable. The tank needed replacing.

The Replacement

We discussed options on the spot: same-capacity gas storage, continuous flow gas, or a heat pump system eligible for the Victorian government rebate. Given the household size and existing gas connection, the family chose a continuous flow gas unit. Our plumber sourced the unit from a local supplier, returned to site, decommissioned the old unit safely, and had the new system installed and commissioned by 2pm. Hot water for the evening. Done.

The Takeaway

Hot water system failures rarely give much warning. If your system is more than 8 years old, it's worth having a plumber inspect the anode and overall condition before it fails completely. ATC Plumbing carries out emergency hot water replacements across Melbourne's south-east including Cheltenham, Mentone, Highett, Moorabbin, and Mordialloc. No hot water? Call 1300 282 758. We're available 24/7.

Related Reading

How long do hot water systems last? How much does a hot water system cost to replace in Melbourne 2026? What size hot water system do I need? See our hot water systems service at atcplumbing.com.au/services/hot-water-systems.