Sound familiar?
Plumbing compliance paperwork takes longer than it should.
Paperwork after the job
Handwriting commissioning sheets on-site, then retyping them back at the office. Every G3 job ends the same way.
Liability without records
Building Regs requirement
G3 unvented work must be documented and notified. No commissioning record means no proof the job was done right.
Illegible handwritten forms
Scanned commissioning sheets with smudged readings and missing fields. Not what a landlord or building control wants to see.
Legionella paperwork is its own job
Risk assessments, temperature logs, action records. The admin burden often outweighs the site visit.
How it works
Open CertBox on your phone
Pick your certificate type from the list. No app download needed — works in any phone browser.
Fill in the form on-site
Step-by-step fields for every required reading. Safety device checks, temperatures, pressure settings — all captured correctly.
Share instantly
Generate a PDF and send a secure link direct to your landlord or client. Done before you leave the property.

What you get
Less time on paperwork. More time on tools.
On-site, on your phone
Create certificates in the field from any phone browser. No app to install, no laptop needed.
All required fields enforced
G3 commissioning records, ACOP L8 assessments, and WRAS templates built with every mandatory field. Nothing gets missed.
Instant landlord delivery
Send a secure link the moment you finish. Landlords view or download the PDF without creating an account.
Audit-ready records
Every certificate stored securely with a unique link. Proof of compliance you can pull up any time.
Plumbing certificates on CertBox
G3, legionella, WRAS, and more — all available from your phone.