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Gas fitter · Central Coast The gas work plumbing-only operators can't legally touch.

Donza Plumbing is a licensed gas fitter and plumber based in Mannering Park, covering the Central Coast, Lake Macquarie and Newcastle, and open 24 hours, 7 days. In NSW, gas fitting is licensed separately from plumbing, and a plumbing-only operator is not authorised to work on gas. Josh holds both licences, so when your job involves gas hot water, a cooktop, a heater or a leak, he does the whole thing himself and signs it off. No subcontracting the gas out, no waiting on a second trade.

Twin 45 kg LPG cylinders on an automatic changeover regulator, Mannering Park.

Plumbing vs gas

Two licences, not one.

In NSW, plumbing and gas fitting are licensed separately by NSW Fair Trading. A plumbing licence alone doesn't let someone work on gas. Josh holds both, which is why he can do the gas jobs other plumbers have to hand off or turn down.

Plumbing licence

Pipes & water

Covers water supply, drainage, taps, toilets and hot water on the water side. Plenty of operators hold this and only this.

Gas licence

Gas appliances & lines

A separate NSW gas-fitting licence to legally install, alter or connect gas appliances and gas lines, and certify the work. Josh holds it. This is us.

Plumbing only

Can't touch gas

A plumbing-only operator legally cannot work on gas. The moment a job involves a gas line or appliance, they have to turn it away or bring in a gas fitter.

What we can do

Gas work, start to finish.

Everything below is carried out under the licence above. For the job-by-job list of installs and pipework, see gas appliance installation and gas lines.

Gas hot water

Supply, install and repair gas storage and continuous-flow hot water systems, with the gas compliance certificate issued on completion.

Cooktops, ovens & bayonets

Install and connect gas cooktops, ovens, upright stoves and bayonet points for portable heaters, certified and tested for leaks.

Gas heaters

Install and service flued and space gas heaters, sized to the room and safely flued so combustion gases vent outside.

Gas leak detection & repair

Find and repair gas leaks fast, a gas smell is an emergency. We isolate, test the line and make it safe before reconnecting.

Gas line installation

Run new gas lines and extend existing ones for appliances, alfresco kitchens and BBQ points, in both natural gas and LPG.

Compliance certificates

Issue the gas compliance certificate every gas job legally requires, your proof the work is safe, certified and insurer-ready.

LPG & natural gas changeovers

Convert appliances and connections between LPG and natural gas, or swap to a more efficient appliance, done to AS/NZS 5601.

Gas appliance servicing

Service and safety-check existing gas appliances, including carbon-monoxide testing on heaters, so your home stays safe.

Recent gas work

Twin LPG cylinders, Mannering Park.

We did the gas fitting for twin 45 kg LPG cylinders on an automatic changeover regulator in Mannering Park, where we are based. The compliance plate is fixed alongside the cylinders.

Gas fitter in Mannering Park

Where we work

Gas fitter across the Central Coast, Lake Macquarie and Newcastle

Donza Plumbing is based in Mannering Park and takes gas work across the Central Coast, Lake Macquarie and Newcastle. We are open 24 hours, 7 days.

Natural gas reaches Toukley and the Budgewoi peninsula through the main over Toukley Bridge, which Jemena’s contractor, Zinfra, calls “the only gas supply into the area”. A main in the area does not mean a property is connected, so we confirm natural gas or LPG at the meter before quoting.

Indicative prices for gas appliance installs are in the price guide, and every gas job is quoted as a fixed price before work starts.

Gas fitting by suburb

Smell gas?

A gas leak is an emergency.

If you can smell gas, turn it off at the meter, open the windows, don't touch any switches or flames, and get everyone outside. Then call us. A licensed gas fitter has to find the leak, make the line safe and certify it before anything is turned back on.

Call 0431 549 178

Good to know

Gas fitting questions

What should I do if I smell gas?

Turn the gas off at the meter or the bottles, open the windows, don't touch any switches or flames, and get everyone outside. Then call a licensed gas fitter: the leak has to be found, the line made safe and the work certified before anything is turned back on. We are open 24 hours, 7 days on 0431 549 178.

Can a plumber be a gas fitter?

Only with a second licence. In NSW, plumbing and gas fitting are licensed separately by NSW Fair Trading, and a plumbing licence alone does not let someone work on gas. Josh holds both under contractor licence 498220C, so the gas side of a job is never subcontracted out.

What does gas fitting cost?

Gas appliance installs and connections are listed in our price guide. New lines and changeovers are quoted to the run, and every gas job is priced before any work starts, with the compliance certificate included.

Do you take gas jobs after hours?

Yes. We are open 24 hours, 7 days, and a gas smell that does not clear once the supply is isolated is a call-now job. The after-hours rate is agreed on the phone before we head out.

Why it matters

One tradesperson, one bill, one job.

When a job mixes plumbing and gas, a new gas hot water unit, a kitchen renovation with a gas cooktop, or a leaking gas line, a plumbing-only operator has to bring in a gas fitter. That means two trades, two schedules and usually a longer wait. Because Josh holds the gas licence himself, he handles the whole job in one visit, certified to AS/NZS 3500 plumbing & AS/NZS 5601 gas and finished with the gas compliance certificate your insurer and settlement agent want to see.

Licensed plumber & gas fitterNSW licence 498220C$20 million public liabilityABN 51 697 209 153

Request a callback

Get a callback from a gas fitter

Leave a name and number and Josh calls you back, usually the same day. Can't wait? Call 0431 549 178.