Hot Water Systems
Hot water is something most households don’t think about until it stops working. If your system has failed, is leaking, or isn’t producing consistent hot water, STS Plumbing provides reliable repairs and replacement services across Sydney’s Lower North Shore. We work with all major hot water system types and provide clear advice on whether repair or replacement is the better long-term option.
“Reliable hot water starts with the right system and proper installation.”
Signs your hot water system may be failing
If you find yourself running out of hot water more often or notice a decline in water temperature, it could be a sign of heating element or thermostat issues with your hot water system. Discoloured water or strange odours issuing from your taps may indicate corrosion inside the tank and unusual noises like rumbling or popping sounds could mean a buildup of sediment. And if you spot any leaks or water pooling around the system, it's time to give us a call.
Types of hot water systems we work with
We repair and install all common residential hot water systems, including electric and gas storage units, instantaneous systems, heat pumps and solar hot water systems. Each system operates differently and has its own performance characteristics, lifespan and servicing requirements. If you are unsure what type of system you have, or which one would suit your household better, we can assess your setup and provide clear guidance.
Hot water system repairs
A loss of hot water can be caused by failed elements or thermostats, gas supply issues, faulty valves or internal wear. In many cases, these problems can be repaired without replacing the entire unit. We inspect the system to identify the cause and confirm whether repair is appropriate. If the tank is still in good condition and within its expected lifespan, we’ll recommend repair. If corrosion or age has compromised the unit, we’ll explain replacement options before proceeding.
Hot water system replacement
Most hot water systems have a lifespan of 8 to 15 years. If your unit is leaking from the tank, producing discoloured water or requiring frequent repairs, replacement is often the more reliable long-term solution.
Correct sizing is important. An undersized system may struggle to meet household demand, while an oversized unit can increase running costs unnecessarily.
We supply and install electric, gas, instantaneous, heat pump and solar hot water systems, ensuring all work complies with Australian standards and manufacturer requirements.
If you’re comparing system types, our guide on choosing the right hot water system for your family provides a more detailed breakdown.
New installations and upgrades
If you’re renovating, extending or building, we can install a system suited to your household size and usage patterns. We assess bathroom numbers, occupancy levels, available energy sources and long-term efficiency considerations before recommending a system. Choosing correctly at installation helps prevent future performance issues.
Servicing and maintenance
Periodic servicing can extend the life of your hot water system and reduce the risk of unexpected failure. Checking valves, pressure controls and internal components helps identify wear before it leads to larger problems. If your system is ageing but still operational, preventative maintenance may help delay full replacement.
Local hot water plumbers
STS Plumbing services the Lower North Shore and surrounding Sydney suburbs. We provide practical advice, transparent communication and compliant workmanship on every installation, repair and replacement. If your hot water system is not performing as it should, contact our team to arrange an inspection or quote.
Q: I can’t take another day of cold showers - can your team fix or replace my hot water system quickly?
Yes, in most cases! Our team are qualified to repair or replace a wide range of hot water systems and we can usually repair or replace the same day. If you need a replacement system, things may take a little longer as we work with you to figure out which hot water system is best for your needs.
Q: Do you do hot water system upgrades and servicing?
You bet! Our team work with gas, electric and solar hot water systems large and small. If you need a service or you’re looking to change your energy source, we’ll be happy to assist.
