Built for UK Gas Safe engineers

Every job.
Every cert.
Every engineer.

Heatflow handles CP12s, job sheets, invoices and AI fault diagnosis — all offline-ready.

Coming soon to iOS & Android · Be first to know when we launch

Heatflow app dashboard showing today's jobs and quick actions
  • Gas Safe compliant
  • GDPR ready
  • Offline-first
  • 5★ engineers

Everything you need on every job

From your first callout to the final signature — Heatflow covers the full job lifecycle.

CP12 & 15+ Certificates

Gas Safety Records, warning notices, commissioning forms and more. Generate a compliant PDF in under 2 minutes.

Job Management

Create and manage jobs, log appliance details, capture site photos, take gas readings and get sign-off on-site.

Offline-First

Full functionality in basements, new builds, rural sites — everywhere. Data syncs automatically when signal returns.

AI Fault Diagnosis

Describe the fault and get structured troubleshooting guidance for common UK boiler faults — right on-site.

Quotes & Invoices

Professional, VAT-ready quotes and invoices. Convert a quote to an invoice in one tap. Email direct from the app.

Company Accounts

Multi-engineer teams, shared job visibility, owner analytics and compliance oversight — built for growing businesses.

15+
Gas Safe forms
Offline
Works anywhere
14 days
Free trial
Certificates

CP12 in under 2 minutes

Work through a guided form that captures every legally required field. Heatflow validates your data before you submit, so your CP12s are always compliant. Generate a signed PDF and email it to the landlord before you've left the property.

  • All 15+ Gas Safe forms in one app
  • Guided, field-by-field completion
  • PDF generation and instant email delivery
  • Digital signatures — no paper needed
CP12 Gas Safety Record form in Heatflow with guided field completion
OFFLINE MODE ACTIVE
Jobs ✓ Available
Certificates ✓ Available
Customer data ✓ Available
Appliance records ✓ Available
Fault guides ✓ Available
SYNC STATUS
3 items pending upload
Offline Mode

Full functionality. No signal required.

Basements, new builds, rural estates — gas engineers work where signal doesn't. Heatflow downloads everything before you leave home. Work normally all day, and your data syncs automatically the moment you reconnect.

  • All jobs, certs and customer data available offline
  • Create certificates and log work without any connection
  • Photos queued and uploaded when signal returns
  • No manual sync required — it just works
AI Fault Diagnosis

When the fault doesn't make sense

Describe the symptoms and Heatflow gives you a structured troubleshooting path — covering common UK boiler faults. Not a replacement for your expertise, but a structured second opinion when you need one.

  • Describe symptoms in plain English
  • Step-by-step diagnostic guidance on-site
  • Covers common UK boiler faults
  • Guidance only — engineer judgement always applies

Simple, honest pricing

One plan. Everything included.

Solo Engineer
£20/mo
or £16/mo billed annually · cancel anytime
  • Unlimited jobs and certificates
  • All 15+ Gas Safe forms
  • AI fault diagnosis
  • Quotes and invoices
  • Offline mode
  • CP12 renewal reminders
Join the waitlist

Coming soon — be first to know

Running a team? See Company pricing →

Coming soon

Be first in line

Heatflow is launching on iOS and Android soon. Leave your email and we'll let you know the moment it's live — plus early access pricing.

No spam. Just a one-time launch email.