Commercial Hot Water Systems Brisbane, Gold Coast and Sunshine Coast

Repairs, servicing and replacement for the hot water plant a building runs on. We test before we price, because the same symptom can have three different causes.
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We have 14+ years of Experience

Signs your hot water system is failing

Any of these means a valve, a circuit or a vessel is on its way out. Log which outlets are affected and when it happens. That alone halves the diagnostic time on site.

Affordable Pricing

On-Time Service

Who we work with

Some of the organisations that keep us on their approved lists.

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Commercial Hot Water Repairs and Servicing

Most of what we fix is not the heater. It is a thermostatic mixing valve drifted out of range, a failing flow switch on a gas booster, or a solar circuit that quietly stopped circulating months ago. We photograph the failed part and it goes in the report with the invoice.

Mixing valves need servicing every 12 months under AS 4032.3. We run that on the same visit as backflow testing so your site has one compliance date, not two.

We work on gas, electric, solar, heat pump and hybrid systems, whoever installed them. Gas work is certified by our own licensed gasfitters. Contracted maintenance clients get priority attendance.

Repair It, or Replace It Before It Fails?

Repair is the default where it makes sense. We recommend replacement when the vessel has failed, parts are no longer available, or a tank sits above ceilings, flooring or joinery where a leak would cost more than the unit.

Storage tanks have a habit of failing on a Friday afternoon or a long weekend, which means after-hours rates. A planned replacement takes about two hours with the water off, on a date you choose.

What Facility Managers Tell Us

“Affinity potholed the whole run in a day and we poured on schedule. Easiest part of the job.”
Mark Talbot
· Site Manager, Meridian Built
“They’ve held our maintenance contract for three years. Reports arrive same day and I’ve never had to chase an invoice query.”
Leanne Prior
· Facilities Manager, Northgate FM
“Their hydrovac crew exposed live fibre and gas without a scratch. The inspector signed off on the spot.”
David Rennie
· Project Manager, CoreCivil
“All works were staged through the school holidays and the site was spotless before term started. Zero disruption.”
Sarah Meng
· Business Manager, St Aidan's College

“Relined 40 metres of common-property sewer without lifting a single tile. Levy-friendly price too.”

Tony Barone
· Committee Chair, Cascade Strata

“Burst main at 8pm, road open by 6am. That phone call is why they keep our emergency work.”

Greg Hoolihan
· Depot Supervisor, civil contractor

How a hot water job runs

STEP 01

Attend and test

Outlet temperatures, valve function, gas or electrical supply, recovery rate.

STEP 02

Quote the repair

Diagnosis in writing, every compliant option priced.

STEP 03

Schedule around your site

Term breaks, overnight, quiet trading periods.

STEP 04

Complete and document

Job Safety Analysis with the invoice, purchase order and job numbers, gas certification where required, next service date set.

Hot Water Down, or Overdue for Service?

Call 1300 066 766 and tell us which outlets are affected. We will give you an attendance time before the call ends.

Common Hot Water Questions

Reliable hot water and efficient drainage systems are essential for keeping your property safe, comfortable, and compliant. Here are answers to common questions about our hot water, commercial drainage, and plumbing services:

Storage systems commonly run 10 to 15 years. Continuous-flow gas often lasts longer. Water chemistry and servicing matter more than age.

Annually if it has thermostatic mixing valves. We check the sacrificial anode on the same visit.
New tanks take hours to heat. On a controlled-load tariff the element may not run until off-peak, and there is usually a boost function at the switchboard. Still cold after a full off-peak window points to a supply or wiring issue.
We repair where it is sensible and tell you plainly when it is not.
Yes. Gas, electric, solar, heat pump and hybrid, regardless of who put them in.

Yes. Most of our maintenance clients came to us with plant installed by another contractor. Our commercial hot water services cover gas, electric, solar, heat pump and hybrid systems regardless of who put them in, including commercial gas hot water systems that need certification by our own licensed gasfitters.

Book a Site Assessment

Tell us what the building is and what the water is doing. We will test it, price it and give you the options in writing.

1300 066 766

info@affinityps.com.au

Servicing Gold Coast, Brisbane, Moreton Bay and the Sunshine Coast

Book a Free Site Assessment