Run your trade business from your phone.

CertBox is a mobile-first field service application designed for trade professionals—including gas engineers, electricians, plumbers, and fire safety inspectors—to manage compliance documentation, job administration, and client billing directly from their smartphones. It replaces manual, paper-based certificate creation with a standardized digital workflow that supports regulatory requirements across multiple jurisdictions. The platform serves contractors operating in the United Kingdom, United States, Ireland, and Australia, with particular emphasis on compliance with US standards such as NFPA 54 (gas), NEC (NFPA 70, electrical), IPC/UPC (plumbing), and IMC (mechanical).
The application consolidates core business functions—including safety inspections, quote generation, invoicing, and job tracking—into a single interface. By enabling offline data capture and automatic synchronization, CertBox ensures continuity of work regardless of connectivity, making it suitable for on-site use in remote or low-signal environments.
Users begin by selecting a certificate type from a curated library of 173+ templates, accessible via the web or app interface. Once selected, they complete the form on-site using a guided, tap-based interface—signing digitally and saving drafts locally even without internet connectivity. Completed certificates are converted to PDF and stored securely in the user’s account. A unique, secure link is generated for each document, allowing recipients (e.g., letting agents or property managers) to download the official PDF directly.
The application also supports end-to-end job management: users can generate quotes and invoices within the same environment, track job status, and reconcile payments through integrated payment processors. All data—including customer information, site addresses, and equipment details—is saved and reused across sessions to minimize redundant entry.
CertBox eliminates repetitive administrative tasks such as handwriting addresses multiple times per month or returning to the office to scan documents. Its structured data model enables rapid retrieval of past certificates by address, tenant, or expiration date—reducing response time to tenant inquiries and preventing lapses in certification renewals. The expiry dashboard provides at-a-glance visibility into upcoming renewals, helping contractors proactively schedule follow-up visits. In regulated markets like the UK and US, the built-in compliance checks verify required fields and calculations against jurisdiction-specific codes before certificate issuance, reducing rejection risk by property managers and Authorities Having Jurisdiction (AHJs). Teams benefit from centralized access to all documentation, while individual contractors gain portability and reduced reliance on desktop systems or third-party scanning hardware.
| Plan | Price | Includes |
|---|---|---|
| Individual | $9.99/month | Unlimited certificates, quotes, and invoices; all features enabled; 10-day free trial |
| Team (4+ users) | $34.99/month | Same feature set plus team-level permissions and shared document repository |
All plans require no credit card for trial activation and include offline functionality, cross-platform sync, and PDF export.