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Hydronic Radiator and Leak Fixes

Fast, reliable radiator repairs across Melbourne

When your hydronic radiator starts leaking or fails to heat properly, you need it fixed fast. At Hydronix, we specialise in pinpointing and repairing radiator faults – restoring warmth, comfort and efficiency to your home quickly and cost-effectively.

Expert radiator leak detection and repair

Radiator leaks can appear small at first but left unchecked, they can cause serious water damage or corrosion within your heating system. Our experienced hydronic specialists locate the source of the leak – whether it’s a valve, pipe joint or corroded panel – and repair it using proven, long-lasting methods.

Common radiator problems we fix

Why choose Hydronix?

Price:

30-minute appointment – $167 inc GST.
This is generally enough time to fix most minor issues, bigger issues will be explained and quoted for during this appointment.

Preventing future leaks

Regular servicing is the best way to extend the life of your radiators and prevent leaks from developing. During a scheduled maintenance visit, we’ll inspect your entire hydronic system, clean components, and check for early signs of corrosion or pressure issues before they cause a breakdown.

Book your radiator repair today

If your hydronic radiator is leaking, not heating properly or making strange noises, don’t wait for it to worsen.
Book a repair with Hydronix today – we’ll get your heating system back to peak performance and your home warm again, fast.

Protect your comfort before the cold sets in

Regular radiator maintenance is the simplest way to avoid leaks and cold spots. Our proactive checks find issues early, protect your home from water damage and keep your hydronic system running efficiently all winter.

1. Leak Detection and Isolation

We trace the source of drips or hidden moisture, isolate the fault and prevent further damage.

2. Valve and Seal Replacement

We replace worn TRVs, lock shields, and O-rings with quality parts that restore reliable control.

3. System Pressure and Safety Check

We test expansion vessels, topping-up points and safety valves to hold correct pressure.

4. Clean, Flush and Inhibitor Dose

We clear sludge that causes cold spots, then add corrosion inhibitor to protect radiators long term.

Let’s get your heating sorted. Contact us

Your satisfaction, our priority

A well-maintained hydronic system not only keeps your home warm but also protects your investment. At Hydronix, every repair and service is carried out to ensure long-term comfort and performance.

Radiator Pressure Testing

Each radiator is checked for leaks, air build-up and pressure stability to ensure your system operates safely and efficiently.

System Performance Review

We verify flow rates, temperature levels and balance to guarantee consistent heating and reliable operation across every room.

Trusted by Melbourne homeowners

When it comes to hydronic radiator repairs, experience matters. Hydronix is trusted across Melbourne for fast response, expert workmanship and long-lasting results. Our simple booking process makes it easy to get your heating system back on track with no waiting around and no confusion.

Step 01

Get in touch

Call or send an enquiry and we’ll discuss your radiator issue and arrange the best time to visit.

Step 02

On-Site Assessment & Repair

We’ll arrive promptly, inspect your hydronic system and carry out repairs on the spot whenever possible. If replacement parts are required, we’ll order and fit them quickly to minimise downtime.

Step 03

Enjoy Reliable Warmth Again

Once repairs are complete, we test the system, balance radiators and make sure everything is running efficiently before we leave.

Frequently asked question

If your radiator has cold spots, leaks, or makes gurgling or hissing sounds, it’s likely due for servicing. These are often signs of trapped air, sludge build-up or a failing valve that needs attention before the issue worsens.

Yes! Hydronix provides fast-response repairs across Melbourne. We understand how urgent heating issues can be, so we aim to attend quickly and restore warmth to your home as soon as possible.

We recommend a full system service every 12 months to keep it running efficiently and to prevent costly breakdowns during winter. Regular maintenance also helps identify small leaks before they become major issues.

Absolutely. Our technicians are trained across all major hydronic brands and carry a large stock of common spare parts to complete most repairs on the spot.

Yes. Hydronix is fully licensed with the VBA and holds comprehensive insurance for your peace of mind. All work is backed by a six-year workmanship guarantee.

Still have questions?

If you’re unsure what’s causing your radiator leak or want expert advice before booking, we’re happy to help.
Call Hydronix today or send us an enquiry and our team will get back to you quickly with the right solution to keep your home warm and worry-free.