[ CASE STUDY · FIELD SERVICE ]
Invoicing in 1 day instead of 9 for an HVAC company with 64 service technicians
Invoicing 9 days → 1 day
[ CONTEXT ]
Context.
An HVAC maintenance company in Germany, with 64 service technicians, used paper job sheets that were collected weekly. Invoicing took 9 days after a job was finished.
[ CONSTRAINTS ]
Constraints.
- Basements and plant rooms have no signal.
- Discovery, then three phases.
[ WHAT WE BUILT ]
What we built.
A React Native app for iOS and Android that works fully offline. Jobs, checklists, photos and the customer signature are stored on the device and synced when signal returns. A Node.js sync API and PostgreSQL sit behind it, hosted on Google Cloud.
[ OUTCOME ]
Outcome.
Paper job sheets were eliminated, and invoicing went from 9 days to 1 day.
Our technicians work in basements with no signal. The app was built for that from the first phase, not patched for it later.
Tell us what you need built.
We reply within 1 business day.