One circuit, one form, done on the phone. Readings come in from your tester, the certificate is laid out to the BS 7671 model form, and the PDF is with the customer before the van's loaded.
Starter £4.99 a month · Pro £9.99 a month, unlimited certificates · charged when you sign up, cancel any time · nothing to install
Minor Electrical Installation Works Certificate, BS 7671:2018+A4:2026. Certio lays out the form and does the typing; the work and the signature stay yours.
An added socket, a new cooker circuit, a light moved — the form for the single-circuit work you do every week.
Photograph your tester's screen or pair a Megger and the readings land in the right cell.
Laid out to the Minor Electrical Installation Works Certificate in BS 7671:2018+A4:2026, with your logo and signature.
Branded PDF to the customer from the app. On Pro, it's released when the invoice is paid.
On Pro, the invoice — with CIS and reverse charge where they apply — goes with it, and Certio chases it.
So the next visit starts from the last one.
Customer, site and your details are already there.
A line or two. Circuit details go in with the readings.
From your tester's screen or a paired Megger, or by typing.
Sign on the phone, send the PDF, invoice from the same screen.
Charged when you sign up, then monthly. No contract, cancel any time. Pro adds priced quotes from a drawing, invoicing with CIS and reverse charge, receipts and the chase — the whole job, not just the form.
See pricing →On the way, not in there yet:
There's a free plan with no card. Starter is £4.99 a month and Pro £9.99 with unlimited certificates, charged when you sign up. No contract, cancel in two taps.
Get Starter · £4.99/mo →Nothing to install — works in your browser. Or go straight to Pro at £9.99 a month.