Communal Hot Water

Commercial Hot Water

When the hot water goes down in a building, the calls start straight away. We install, service and repair communal hot water systems for strata and commercial properties, and keep them running so your residents and tenants aren't left cold.

Hot water that keeps up with the building

A communal system has to deliver for dozens of units at once, often around the clock. We look after gas, electric and heat pump hot water for strata and commercial buildings, from regular servicing that heads off breakdowns to full replacements when a system has had its day.

When it's time to upgrade we'll talk you through running costs, recovery rates and the rebates on offer, so the system you put in suits the building and the budget rather than just being the cheapest unit on the day.

Gas, electric & heat pump Servicing & repairs Rebate guidance

What we handle

  • Communal hot water installation and replacement
  • Gas, electric and heat pump systems
  • Continuous-flow and storage systems
  • Scheduled servicing and maintenance
  • Tempering and mixing valve servicing
  • Circulation and ring-main repairs
  • Breakdown repairs and emergency callouts
  • System sizing and upgrade advice
Hot water cylinder mounted on a wall
Strata & Commercial

Built for shared use

Communal systems live in plant rooms, on rooftops and in basement cupboards, feeding hot water through ring mains to every unit. When one is undersized or poorly maintained, residents notice it first thing in the morning when the hot water runs out.

We service and repair these systems, sort out failing circulation pumps and valves, and when it's time to replace, size the new system to how the building actually uses hot water.

Comfortable apartment living space
For residents & tenants

Reliable hot water, fewer complaints

Owners and tenants don't think about the hot water system until it stops working. Regular servicing keeps it running through winter and catches small faults before they become a no-hot-water callout for the whole building.

We also check tempering valves so the water reaching bathrooms stays at a safe temperature, which matters for both comfort and compliance.

From assessment to ongoing care

How we look after a building's hot water.

1

Assess

We check the existing system, how the building uses hot water and where the current setup is falling short.

2

Recommend

We lay out the options, gas, electric or heat pump, with the running costs and any rebates, and a clear price.

3

Install or repair

We carry out the work with as little downtime to the building as possible, and commission it properly.

4

Maintain

We can set up a servicing schedule so the system keeps running and small issues get caught early.

Hot water FAQs

What strata managers and building owners ask us.

It comes down to how much hot water the building uses, what's already connected, the space available and your budget. Heat pumps can cut running costs and attract rebates but cost more up front; gas suits high, steady demand; electric is simple where gas isn't available. We'll walk you through what fits.
As a guide, once a year keeps most systems healthy and helps spot wear before it turns into a breakdown. Some valves and components have their own service intervals, which we'll factor into a schedule for your building.
Yes. We size systems on the number of units, fixtures and the building's usage pattern, so you get enough hot water at peak times without paying to heat water nobody's using.
There are often rebates for moving to efficient systems like heat pumps, though they change over time and depend on the product and your situation. We'll tell you what's available when we quote so it can factor into the decision.
That's usually a tempering or mixing valve that needs servicing or replacing. These valves keep the water at a safe temperature at the tap, so it's worth sorting quickly, especially in buildings with kids or elderly residents.

Related services

Other ways the Frosty's team can help out.

Keep the hot water running

Book a service, sort a breakdown, or get advice on replacing a tired system. We look after communal hot water for strata and commercial buildings across Sydney.

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