Plenty of good engineers still use paper certificate pads. They are familiar, they do not need charging, and they have worked for decades. But the jobs around the certificate have changed. Landlords want PDFs, agents want them today, and customers expect a reminder when the next check is due.
The real cost of paper
The pad is cheap. Everything around it is not:
| Paper | Digital | |
|---|---|---|
| Filling in | By hand; handwriting varies | A set form that prompts for required fields |
| Customer copy | Carbon copy, often faint | A clear PDF every time |
| Getting it to the agent | Photo, scan or post | Secure link, sent before you leave |
| Evenings at the kitchen table | Common | Rare |
| Lost certificates | Happen | Stored and searchable |
| Proving it is genuine | A phone call | A QR code check |
| Renewal reminders | Your diary, if you remember | Automatic |
The biggest hidden cost is time after the job. If you spend 15 minutes per certificate scanning, emailing and filing, and you issue 10 certificates a week, that is two and a half hours a week, or well over 100 hours a year.
What digital gets right
Fewer mistakes
A good digital form will not let you skip a required field, and it formats readings the same way every time. Gas Safe inspectors and NICEIC or NAPIT assessors spend less time querying your paperwork.
Faster payment
When the certificate, invoice and job record live in one place, you can send them together. Customers tend to pay sooner when the paperwork arrives the same day as the work.
Repeat work
Annual gas checks, five-yearly EICRs and six-monthly fire alarm services are predictable work. With paper, you lose it whenever the customer forgets who you are. With reminders, the customer gets a nudge 60 days out with your name on it. The repeat-work playbook.
Protecting your name
Anyone can photocopy an old paper certificate and change the date. A certificate with a QR check lets the recipient confirm it is genuine and unaltered, which protects your registration number and your reputation.
The honest objections
"I'm not good with tech."
If you can send a WhatsApp, you can fill in a digital certificate. Good apps are built for use on site with dirty hands and a small screen.
"I don't want another monthly subscription."
Fair. With CertBox, filling in and checking certificates is free. To get a certificate out (download, email, share or print), you pay once for that certificate, or move to Pro once you are issuing enough that a flat monthly price works out cheaper. See current pricing.
"My customers like paper."
Some do. You can still print a PDF, but you cannot turn a carbon copy into a clear PDF.
"What if the app disappears?"
Keep your own copies. Every certificate you send is a standard PDF you can store wherever you like.
Why trades choose CertBox
CertBox was built for tradespeople, not office compliance teams:
- One app for many trades. Gas, electrical, fire, plumbing, legionella, ventilation, insulation and more. Browse all certificate types.
- Free to fill in. Try it on real jobs before you spend anything.
- Secure-link delivery. Customers, landlords and agents open the PDF without an account.
- A QR code on every certificate.
- Your logo on every certificate you issue.
- Pro adds 60 and 30-day renewal reminders to your customers, your logo on quotes and invoices, and removes the CertBox line from your certificates.
- Quotes, invoices and scheduling in the same place.
- Beyond the UK, with certificate types for Ireland, Australia and South Africa.
See the pages for gas engineers and electricians for trade-specific details.
Switching without disruption
- Start with one certificate type, your most common one.
- Run it alongside paper for a week until you trust it.
- Add your regular landlords and agents as customers.
- Tell your agents that certificates will now arrive by secure link on the day.
- Retire the pads.
Frequently asked questions
Are digital certificates legally valid?
Yes. HSE confirms gas safety records can be electronic, as long as they can be printed when asked for, are kept secure and identify the engineer who did the check (for example by electronic signature or Gas Safe licence number). Tenants can receive them electronically but must be given a paper copy if they ask. EICRs and other certificates are routinely issued as PDFs. What matters is that the content is complete and correct.
Will a digital certificate pass a scheme assessment?
Assessors care about the content: correct readings, complete fields and suitable observations. A digital form makes those easier to get right. Check your scheme's own requirements.
Can I add my own logo?
Yes. Your logo appears on every certificate you issue. On Pro it also goes on your quotes and invoices.
Sources
Checked against these on 2026-10-20.
Related Certificates
Create Compliant Certificates in Minutes
CertBox helps tradesmen produce professional, regulation-compliant certificates on any device.
Try CertBox FreeFree to fill in. £4.99 to send one, or £14.99 a month for as many as you like.
Corrected and updated 2026-10-20. This article is for general guidance only and does not constitute legal or professional advice. Always refer to the relevant standards and consult qualified professionals for definitive requirements.