Certificates worth handing over.
Every certificate your firm issues — gas, electrical, plumbing, fire — filled in on your phone and turned into a clean, professional PDF your client is glad to receive.
Gas Safety Record
24 Elm Road, Manchester
J. Mitchell
Signed on site · 26 Feb 2026
218+
Certificate templates
4
Countries
Works offline
Web, desktop & mobile
Templates for the standards you work to
Why we built it
Built for firms that do more than one thing.
CertBox exists because a firm we know was paying for three separate cert apps — one for the gas, one for the electrics, one for the plumbing. Three subscriptions, three logins, three lots of admin, for one company. We rolled them into one. If your firm works across trades, this is the app that ends the stack of subscriptions.
The usual way
- A gas cert app — one subscription
- An electrical cert app — another
- A plumbing cert app — a third
- Three bills. Three logins. Three lots of admin.
With CertBox
- Gas, electrical, plumbing, fire, HVAC and renewables
- 218+ certificate types across 4 countries
- Quotes, invoices and job management too
- One account. One login. Free to start.
See the full record
Behind that tidy summary sits every detail the standard asks for. This is exactly what your landlord receives.
Mitchell Gas Services Ltd
Gas Safety Record (CP12)
Certificate Ref
CP12-2026-0047
Gas Safe Registered
Registration No. 543219
Engineer
James Mitchell
ID: 1087654
Property
24 Elm Road, Manchester, M14 5RQ
Landlord / Responsible Person
Mrs S. Patel
Tenant
Mr D. Thompson
Date of inspection
26 February 2026
Next due
25 February 2027
Identity & flue tests
| Location | Type | Make / Model | Flue type | Flue test | Spillage | Ventilation |
|---|---|---|---|---|---|---|
| Kitchen | Boiler | Worcester Greenstar 30i | Room sealed | Pass | N/A | Satisfactory |
| Kitchen | Gas hob | Belling GHU60GC | Flueless | N/A | N/A | N/A |
Pressures, condition & result
| Location | Op. pressure | Safety devices | Visual condition | Safe |
|---|---|---|---|---|
| Kitchen | 20.0 mbar | Satisfactory | Satisfactory | Yes |
| Kitchen | 20.0 mbar | Satisfactory | Satisfactory | Yes |
Engineer signature
J. Mitchell
26 February 2026
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Download PDFFill it. Sign it. Share it.
Your landlord gets the certificate before you leave the driveway.
Fill in on-site
Open the form on your phone, fill in the details while you work. Auto-saves as you go.
Sign and generate
Add your signature, hit submit. PDF generated instantly with QR code for sharing.
Share instantly
Tap share. Your landlord gets a link to view, download, and store the certificate.
New
RAMS — built for sole traders
Create a professional Risk Assessment & Method Statement in minutes, not hours. Pick hazards from a pre-built library, get instant control measures, and generate a PDF that main contractors actually accept.
18 hazard categories
Pre-populated descriptions and control measures. Select what applies, edit to be site-specific.
Colour-coded risk matrix
5×5 likelihood vs severity. Initial and residual risk scores calculated and colour-coded automatically.
Professional PDF output
Cover page, risk assessment table, method statement, PPE checklist, signatures. Share via link instantly.
Simple pricing
Free plan available. Upgrade when you need more.
Pro
£14.99/mo
- Everything in Free
- Automatic renewal reminders — repeat work comes back to you
- Your logo & branding on PDFs
- Unlimited properties & clients
- Team access (up to 3 users)
- Data export (CSV, bulk PDF)
- CertBox AI assistant
- Priority support
Team
£24.99/mo
- Everything in Pro
- Unlimited team members
- Bulk property import (CSV)
- Compliance reporting and audit export
- Priority support
All prices in GBP. Annual billing saves up to a third.
Common questions
How much does CertBox cost?
CertBox has a free plan with unlimited certificates and up to 5 properties. Pro is £14.99/month for automatic customer renewal reminders, your logo on every PDF, and team access. Team is £24.99/month for unlimited team members, bulk import, and compliance reporting.
Do letting agents accept CertBox certificates?
Yes. Certificate templates are based on Gas Safe prescribed forms, BS 7671 (18th Edition) model forms, and other industry-standard formats. You send a secure link and they download the PDF.
Are the certificates compliant?
Certificate templates are structured to the relevant standards with built-in field validation. Legal compliance depends on the qualifications of the engineer completing the certificate and the accuracy of the information entered.
Can I use CertBox on-site without Wi-Fi?
Yes. Fill in the form even with no signal. Your draft is saved on your device and syncs automatically when you are back in range. Install CertBox to your home screen for the best offline experience.
Free plan available. Pro from £14.99/mo. No card required.