The full scope of works.
Every line item HQ carries on a commercial build, grouped into the eight stages your program runs them in. Read it against your scope of works, or put the drawings in front of Mitchell first.
- Plumbing contractor
- PL 11442
- Gas fitting
- GF 19966
Early works
4 itemsSet-out, drawing review, and the temporary services that keep a site running.
- Site establishment and plumbing set-out
- Hydraulic and plumbing drawing review
- Temporary water services
- Temporary site amenities plumbing
Underground
10 itemsSewer, trade waste and stormwater: the services that go into the ground first.
- Underground sewer installation
- Boundary traps
- Trade waste drainage
- Grease trap installation
- Pump pits and sewer pump systems
- Underground stormwater installation
- Stormwater pits and drainage
- Roof drainage connections
- Downpipe connections
- Soakwells and soakage systems
Water services
14 itemsFrom the water main to every outlet, with backflow protection and the fire and irrigation feeds.
- Underground water mains
- Incoming water service
- Water meter connections
- Backflow prevention devices
- RPZD installation
- Double check valve installation
- Cold-water reticulation
- Hot-water reticulation
- Hot-water return and circulation lines
- Hot-water unit installation
- Fire hydrant pipework (within plumbing scope)
- Fire hose reel pipework (within plumbing scope)
- Fire service connections (where appropriately licensed)
- Irrigation and reticulation water supply connections
Plant and gas
7 itemsPlant room pipework and pressure control, with the gas run under HQ’s own gas fitting licence instead of a second subcontractor.
- Plant room pipework
- Booster pump installation
- Pressure-reducing valve stations
- Expansion vessels
- Gas pipework GF 19966
- Gas meter connections GF 19966
- Gas appliance connections GF 19966
Rough-in
4 itemsThe pipework that disappears: into walls, into slabs and through ceiling spaces.
- In-wall plumbing rough-ins
- In-slab plumbing rough-ins
- Ceiling-space pipework
- Fire collars and penetration coordination
Fit-off
15 itemsEvery fixture and connection, from sanitaryware through to commercial kitchens.
- Toilet installation
- Urinal installation
- Basin installation
- Sink installation
- Shower installation
- Bath installation
- Tapware installation
- Floor waste installation
- Drinking fountain and bubbler installation
- Dishwasher connections
- Commercial kitchen plumbing
- Laundry plumbing
- Accessible and ambulant bathroom fit-off
- Hose tap installation
- Final fixture fit-off
Testing
11 itemsWater and gas proven under pressure, then commissioned and documented.
- Sewer testing
- Water pressure testing
- Hydrostatic testing
- Leak testing
- Drain camera inspections
- Backflow device testing
- Flushing and commissioning of water services
- Gas pressure testing GF 19966
- Gas commissioning GF 19966
- Hot-water system commissioning
- Final testing and commissioning
Handover
5 itemsDefects closed, as-builts marked up, and the compliance trail handed over.
- Defect rectification
- As-built information and mark-ups
- Plumbing compliance documentation
- Handover documentation
- Maintenance and warranty works
On the drawings but not on this list?
Seventy line items is the usual shape of a commercial package, not the limit of one. Call and walk the hydraulics with Mitchell.
0430 862 221Residential work, too.
Hot water units, bathrooms, laundries and gas appliances for Perth homes.