Built for UK gas engineers

Fix it first visit.
No hold music.

Answers straight from the manufacturer's instructions in seconds — less time on site, lower call-out bills for your customers.

Start 14-day free trial

Full access for 14 days · No card needed

Download Android app

Android: open the downloaded file and allow install. iPhone: tap Share → Add to Home Screen.

Diagnose

Enter the fault code or say what you see — "fires for 3 minutes then cuts out". It walks you through one check at a time, straight from the boiler's MI.

  • No waiting on hold for tech support
  • Sensor values & test readings from the MI
  • Snap a photo or talk at any point

Photo inspector

Snap the flue, vent or pipework and ask "is this OK?". It asks for the extra photos and measurements it needs, then tells you what to put right.

  • Clearances & regs checked on site
  • Asks follow-up questions like a mentor
  • Spot problems before you sign off

Plus guided tests, calculators, wiring plans and real certificates — all in the same app.

Plans & pricing

Every plan starts with a 14-day free trial of everything. No card needed. Prices exclude VAT.

Diagnostic

For breakdown work

£14.99 / month

or £149.90 a year (2 months free)

  • MI-backed fault code & symptom diagnosis
  • Sensor & tech data with meter verdicts
  • Sequence of operation helper
  • Data badge photo lookup
  • Gas rate & CO/CO₂ calculators
  • Your saved jobs
Start free trial
Most popular

Pro Engineer

The complete toolkit

£19.99 / month

or £199 a year (2 months free)

  • Everything in Diagnostic
  • Regs photo inspector chat
  • Wiring centre & saved junction box records
  • Guided tightness & gas rate tests
  • Gas safety, service, Benchmark, install & warning records
  • Your Gas Safe ID & signature on every form
Start free trial

Company

For teams of 2+

£39 / month

or £390 a year (2 months free) · 2 engineers included · extra engineers £12.99/month or £129.90/year

  • Everything in Pro for every engineer
  • See all engineers' jobs, records & wiring
  • Company logo & Gas Safe details on forms
  • Shared customer & address records
  • Manage your team
Start free trial

Your next breakdown is easier.

14 days of full access, no card needed. Add it to your home screen and it's ready on the next job.

Use email instead

Guidance only. Always follow the manufacturer's instructions, Gas Safety (Installation and Use) Regulations, Building Regulations and current industry standards. You remain responsible for all work and certification.

© 1970 Boiler Wizard. All rights reserved. Boiler Wizard name, logo, software and content are protected by copyright. Unauthorised copying, reproduction or distribution is prohibited.

© 1970 Boiler Wizard. All rights reserved. Boiler Wizard name, logo, software and content are protected by copyright. Unauthorised copying, reproduction or distribution is prohibited.