Inspection Details
Gas Engineer — Issuing
Inspection Address
Landlord / Agent Details
Caravan Park Details
Caravan / Site Details
CO & Smoke Alarms
Other Comments / Observations
Gas Installation Pipework & Final Checks
Tightness Tests
Hoses & Connections
Settings
Company & Engineers
Your details are pre-loaded below. Edit and save if anything changes.
Engineers
Select the active engineer — their name, licence and signature will appear on each certificate.
Google Drive
Certificates, parks, landlords, appliances and engineer details are stored in your own Google Drive under Certii.
Caravan Parks
What's New
Landlords
Appliance Library
Engineers
Select the active engineer — their name, licence number and signature will be used on each certificate.
Add Park
Add Landlord
Add Appliance
Add Engineer
Default Certificate
No default set — you will be asked to choose each time you start a new certificate.
Billing Log
Tracks every certificate issued. Deleted certs are automatically marked void on next login.
Connect to Google Drive to load billing log.
Install & Use
Android
Open in Chrome → tap the three-dot menu → Add to Home Screen. Works fully offline once installed.
Bluetooth printing: Pair your thermal printer once in Android Settings, then tap "Print Certificate" — Chrome connects automatically.
iOS (iPhone & iPad)
Open certii.co.uk in Safari — Chrome on iOS does not support installing PWAs.
Tap the Share button at the bottom of the screen → scroll down and tap View More → tap Add to Home Screen.
Once installed, open Certii from your home screen — it runs as a full app with no browser bars.
Desktop / PC
Open certii.co.uk in Chrome → click the install icon in the address bar, or use the three-dot menu → Save and share → Install page as app.
Software by Ben Parry | v3.0
Certificate Counter
The next certificate number is assigned from this counter when offline. Use this to correct duplicates or mismatches.
