Who Fixes Hot Water Cylinders?

Hot water cylinders should be repaired and maintained by qualified plumbers or plumbing and gasfitting professionals, depending on the system type. In New Zealand, any work involving water heating systems—especially if connected to the mains, electricity, or gas supply—must be done by a licensed practitioner.

Leaking tanks, faulty heating elements, broken thermostats, and pressure relief valve problems are common issues that require professional repair. Plumbers can also diagnose an inconsistent hot water supply, unusual noises, or low water pressure caused by the cylinder.

Some companies specialise in hot water systems and may offer faster, more tailored service. If your system is under warranty, it's best to contact the manufacturer first, as repairs may need to be performed by an approved technician to keep your warranty valid.

If you're unsure who to call, check for local plumbing services in your area that advertise hot water cylinder repair or installation. Always look for certified plumbers registered with the Plumbers, Gasfitters and Drainlayers Board (PGDB), and check customer reviews to ensure quality service.

Attempting DIY repairs is not only risky but can also void your warranty or insurance. For peace of mind and safety, always rely on professional repair services for hot water cylinder issues.