
Excavation
Trenching, drainage and stormwater, sewer and site cuts with our own 8 t, 3.5 t and 1.5 t excavators and tip truck. Tight access, demolition and spoil removal.

Maintenance, repairs and fault-finding on sites that keep operating while we work, using drain CCTV and leak detection.

Offices, shopping centres, schools, apartment and strata buildings and government facilities: leaking and burst pipes, blocked and slow drains, taps, valves and fixtures, backflow devices and gas pipework.
Reduced pressure zone devices, double check valves and other backflow prevention devices on water services, fire services and in plant rooms, for commercial buildings, apartments and strata, schools and government facilities.
Commercial sewer and stormwater lines, floor wastes, gullies and pits. We find cracks, displaced joints, tree roots, silt and blockages on camera and clear the line with our own jetter.
Underground service lines and branches, pipework under slabs, and leaks inside walls, ceilings and risers on commercial water services. We find the leak, then repair it and reinstate the area.
Fitted on the incoming water supply, or on a single line serving drinking taps, coffee machines, ice machines and other equipment in commercial buildings.
Gas pipework, appliance connections and repairs for commercial kitchens and catering facilities.

Factories, warehouses, workshops and food production sites.
Wash-down areas, trench and floor drains, water supply pipework, valves and fixtures, maintained around production.
Recurring blockages, drains that back up, loss of pressure, unexplained water use, wet floors and slabs, and leaks that cannot be seen. We trace the cause before we propose a repair.
Sewer and stormwater drains, pits, underground water services and service trenches on commercial and industrial sites, including new runs, repairs and excavation where the pipe is buried.

Blocked toilets, kitchen sinks, showers and baths, laundry troughs, floor wastes, gullies and stormwater drains, including slow and gurgling drains and tree roots in the line. We clear them with our own high-pressure jetter and inspect the line on camera to find the cause.
Burst and leaking pipes, water service lines, and pipes under slabs, driveways and gardens. We find the break, dig down to the pipe, repair it and reinstate the area.
Leaking taps and mixers, toilet and cistern repairs, shower repairs, pipework repairs and replacement, and plumbing for kitchens, bathrooms and laundries.
Leaks under floors and slabs, inside walls and ceilings, behind showers and in underground pipes. We find the leak, then repair it where it starts.
Gas cooktops and ovens, gas room heaters, outdoor gas connections, new gas points and gas pipework repairs.


You send through the details of the job or call the office.
We attend site and scope the work in person.
You get a written quote for the work.
We book the work around your operating hours, your inductions and your access requirements.
We hand over with compliance certificates where required.

If you’re looking for an experienced contractor to support your commercial, industrial or government plumbing requirements, tell us about your project below. Our team will review the details and get in touch to discuss how Giant Plumbing can assist.






We plan access and shutdowns with your site contact before we start, and stage the work so the parts of the building that need to keep running do.
We carry out maintenance, backflow testing and fault-finding for facility, property and asset managers on the buildings they look after.
For a normal blockage we attend and clear the line. Where the cause is not clear, we inspect it on camera, and if that shows a bigger problem, such as a cracked or collapsed pipe, we quote the repair before work starts.
We test backflow prevention devices on water and fire services and issue the certificate on completion.
Yes. Our work is mainly commercial and industrial, and we also do residential plumbing across Melbourne.
We look after sites across greater Melbourne from our base in Coburg North, and travel Victoria-wide for some clients.

Trenching, drainage and stormwater, sewer and site cuts with our own 8 t, 3.5 t and 1.5 t excavators and tip truck. Tight access, demolition and spoil removal.

Repairs to underground fire service mains, isolation valves, hydrant branches, hydrants, booster assemblies and fire service backflow devices.

Commercial, industrial and residential re-roofs, metal roofing, box gutters, flashings and cappings, skylight replacement, wall cladding and roof leak repairs.

Speak with our team to discuss plumbing maintenance, backflow testing, drainage or a fault that keeps coming back.









