DOCUMENTATION

Photo evidence vs paper records for plumbing compliance

A Victorian plumber has to be able to prove a job for years after the van has left the kerb. Here is an honest comparison of the three ways most plumbers do it, judged on one thing: how well each one holds up if the work is ever questioned.

What we are actually comparing

This is not about which method is tidier. It is about what survives the 7-year liability window, when a slab leak, a failed hot water unit, or an insurance claim brings your old job back to the surface. Paper is the formal record and always has been. Phone photos are free and most plumbers already take them. Elemetric is built to turn those photos into a tamper-evident, AS/NZS 3500-checked evidence chain. Each one earns its keep in a different way, so we compare them on proving the work, not on running the business.

The paper job book

Paper is the formal record, and that matters. A handwritten entry in a job book is the document plumbers have relied on for decades, it needs no battery, and it is hard to argue did not exist. The weakness is everything after the job. A job book tells the story you wrote down, not what the install actually looked like, so it cannot show the bond was correct or the fall was right. And finding the one entry that matters four years later, in a book that may have faded, gone missing, or never left the ute, is its own problem.

Photos on your phone

Taking photos is the best habit on this list and it costs nothing. Most plumbers already snap the rough-in, the connections, and the finished job, and a clear photo of the actual work proves more than a line of handwriting ever could. The catch is that a camera roll is not a record. There is no structure, no link to the job, no sign-off, and nothing that proves when a photo was taken or that it was not edited later. A lost or wiped phone takes the lot with it.

Where Elemetric is different

You can use more than one

None of this means you throw the job book out. Plenty of plumbers keep writing up the formal record and use Elemetric for the photo-and-standards evidence behind it. The point of the comparison is not to pick a single winner, it is to be honest about which method proves what, so you are not relying on a faded docket or a loose phone photo the day a claim lands.

Common questions

Do I still keep my paper job book if I use Elemetric?

You can, and many plumbers do. The job book is the formal written record. Elemetric builds the timestamped, AS/NZS 3500-checked photo evidence that backs it up. They cover different jobs, so running both is fine.

Why are app photos stronger evidence than my camera roll?

A camera-roll photo has no proof of when it was taken or that it was not edited afterwards. Elemetric stamps each photo with a time and stores a hash, so the original can be verified later rather than just claimed.

What happens to my records if I lose my phone?

With a loose camera roll, you lose them. Elemetric keeps the signed record and photos so a lost phone, a wiped device, or a flooded ute does not take your evidence with it.

Does Elemetric issue the Certificate of Compliance for me?

No. The licensed plumber issues the certificate. Elemetric builds the photo-and-standards record that supports it, it does not certify the work for you.

General information for licensed tradespeople, not legal or regulatory advice. The licensed plumber remains solely responsible for compliance. Refer to the current AS/NZS 3500 standards and the Building and Plumbing Commission (formerly the VBA) for authoritative requirements.