Plumber Mulgrave VIC 3170 – Kitchen Renovation and Gas-to-Induction Upgrade

Overview of the Job – Full Kitchen Renovation with Plumbing and Gas Changes

At a property on Camville Road in Mulgrave VIC 3170, our team at Your Choice Plumbers was engaged to manage the plumbing side of a full kitchen renovation for a family upgrading from an older kitchen to a modern layout with premium appliances and induction cooking.

Kitchen renovations like this are not just about final fit-off. To get the result right, the plumbing has to be staged properly and coordinated closely with demolition crews, cabinet makers, and appliance installation timings.

This is exactly the type of project where homeowners start asking, “when should the plumber come in during a kitchen renovation?” or “what happens to the gas line when switching from gas cooking to induction?” As an experienced plumber Mulgrave, we often find that successful renovation plumbing comes down to planning the job in stages so nothing is left fighting for space once the new kitchen goes in.

Why This Kitchen Upgrade Needed More Than a Standard Fit-Off

As soon as we assessed the job during the early phase, two important technical issues became clear.

The first issue was the drainage layout. The existing 50mm waste pipe was positioned exactly where the new dishwasher was meant to sit, which meant the under-sink plumbing and appliance zone would clash unless the drain was reworked.

The second issue was the home’s incoming water pressure.

Our pressure test showed the property was receiving 680 kPa, which is above the 500 kPa maximum referenced under AS/NZS 3500. That level of pressure would have placed unnecessary stress on the new kitchen fixtures and especially on the internal valves and solenoids in the new dishwasher.

There was also a third major consideration: because the owners were moving from gas cooking to induction, the existing gas supply line had to be decommissioned properly and permanently in line with the applicable gas installation requirements.

Why the Gas Changeover Needed to Be Done Properly

When a kitchen moves from gas cooking to induction, the old gas line cannot just be left in place loosely capped or forgotten behind the cabinetry.

In this case, the redundant 15mm gas pipe needed to be decommissioned in a way that was:

• permanent
• gastight
• safe inside the wall cavity
• properly tested before the kitchen was closed up

This is something we often explain on gas leaks and gas alteration jobs, because once a gas appliance is removed, the leftover line must be treated as a live gas installation until it has been permanently sealed and tested correctly.

Managing the Kitchen Plumbing as a 3-Stage Process

To make the renovation run smoothly, we managed the plumbing works in three distinct stages.

This was the right approach because it allowed the project to move forward cleanly without trades getting in each other’s way and without the finished cabinetry being compromised later by plumbing corrections.

All fixtures and required components for the works were sourced from Reece Plumbing Clayton.

Stage 1 – Pre-Demolition Disconnection and Safe Site Preparation

Before demolition began, we safely disconnected the existing sink and dishwasher and isolated the gas supply to the old cooktop.

This allowed the demolition crew to start work safely and meant the kitchen could be stripped out without any active plumbing or gas services being left connected in the work zone.

That first stage is critical on renovation jobs because it creates a clean and safe starting point for all following trades.

Stage 2 – Rough-In, Drain Relocation, Gas Decommissioning, and Pressure Protection

Once the old kitchen had been removed, we moved into the rough-in stage.

Drain and Water Point Relocation

We relocated the hot and cold points to suit the new kitchen layout and carried out an underfloor offset to the 50mm waste pipe so the drain no longer conflicted with the planned dishwasher position.

That ensured the new kitchen cabinetry and appliance layout could be installed without the plumbing fighting the design.

Gas Decommissioning

To permanently remove the old cooking gas point from service, we capped the 15mm gas pipe inside the wall cavity using a 15mm B-Press Gas Stop End.

This was joined using our Rothenberger mechanical crimping tool, which gave the installation a very clean, flame-free, factory-standard finish within the wall space.

We then performed a mandatory manometer gas test at the consumer side of the meter and confirmed zero pressure drop over 5 minutes, which verified the decommissioned line was fully sealed.

Water Pressure Protection

Because the home was running at 680 kPa, we also installed a pressure regulating valve to protect:

• the new kitchen mixer
• the new dishwasher
• the rest of the home’s plumbing system

That meant the renovation was not just being fitted out beautifully — it was also being protected from excessive pressure that could shorten the life of the new appliances and fixtures.

Stage 3 – Final Fit-Off of the New Kitchen

Once the cabinetry had been installed, we returned for the final fit-off stage.

We installed the following premium fixtures and appliances:

Sink

Blanco Naya 6 Single Bowl Quartz Sink

Mixer

Methven Gaston Pull-Down Mixer

Appliance

Miele G5000SCCLST Stainless Steel Dishwasher

With the rough-in already staged properly, the final installation could be completed cleanly and without compromise.

Why the 3-Stage Approach Was So Important

This case is a very good example of why kitchen renovation plumbing should never be treated as a one-visit job.

By handling the project in stages, we were able to:

• prepare the site safely before demolition
• correct the hidden drain and supply issues during rough-in
• decommission the gas line properly before walls were closed
• fit off the finished kitchen cleanly once the cabinetry was ready

That staged process is what helps premium renovation jobs come together properly instead of ending up with awkward compromises hidden behind the joinery.

Final Result and Client Outcome

Once the works were complete, the family had:

• a fully upgraded kitchen plumbing layout
• the waste pipe realigned to suit the new dishwasher zone
• the gas cooking line safely decommissioned for induction conversion
• compliant pressure protection installed for the new kitchen
• premium new sink, mixer, and dishwasher fitted properly
• a much cleaner and more future-ready kitchen setup overall

The result was not just a new-look kitchen, but a plumbing and gas configuration designed to support it properly long term.

Compliance with Australian Standards

This case directly related to the pressure control requirements referenced under AS/NZS 3500, which requires residential pressure to be regulated to a maximum of 500 kPa, together with the safe alteration and decommissioning of gas pipework in line with AS/NZS 5601.1.

In practical terms, this meant the renovation was not just about fitting new kitchen fixtures. It also required correct drainage set-out, proper appliance preparation, compliant water pressure protection, and permanent gas decommissioning so the new induction-based kitchen could operate safely and reliably.

All work carried out by Your Choice Plumbers is completed in accordance with the relevant plumbing and gas standards so renovation projects are finished properly behind the cabinetry as well as in front of it.

Our Home Plumbing Experts Approach

As part of our Home Plumbing Experts approach, we focus on both repair and prevention.

We include our complimentary Property Protection Audit with plumbing services to help homeowners understand hidden risks like excessive water pressure, unsafe hot water temperatures, and ageing flexible hoses before they turn into emergencies.

Find out more about our gas leaks, pressure limiting valve and PRV installation services, and leaking tap repairs Melbourne services where renovation plumbing, gas safety, and fixture protection all need to work together.

Looking for a Plumber in Mulgrave?

If you’re renovating your kitchen, switching from gas cooking to induction, or want the plumbing and gas work staged properly from start to finish, visit our Plumber Mulgrave page to learn more about how we help local homeowners.