SoftwareDiaglibs2025
Diaglibs, sampling for building diagnostics in condominiums
Diaglibs is a startup that makes life easier for building assessors. We built its software, from the forms sent to residents to appointment booking.

- The need
- For a collective energy assessment, the assessor has to pick a sample of flats that represents the whole building. You need to know each flat, its type, its heating or its floor, then get appointments with the right residents. It was all spreadsheets, calls and manual reminders.
- What we built
- Projects per building with residents and their units imported from Excel
- A drag-and-drop form builder with reusable templates
- Sending by e-mail and text message with automatic reminders
- Sampling criteria with the number of answers needed for each
- A public booking page on the assessor's availability, with confirmations and calendar invites
- E-mails branded for each firm and subscriptions in three plans
- How we worked
- Diaglibs is a startup, so we worked in sprints with a weekly meeting to adjust the product to feedback from the first assessors. The finest part was the reminder and quota engine. Each e-mail and text is counted against the firm subscription, and reminders go out at the right time and never twice.
- Technologies
- React
- Vite
- Tailwind CSS
- Node.js
- Neo4j
- Stripe
- Playwright
- The result
- The software has been live since 2025 and keeps evolving with Diaglibs. Assessors send their forms, track their criteria live and let residents pick their own appointment.







