New gas engineers
Shorten the learning curve. Instead of guessing on your first unfamiliar appliance, see how engineers with twenty years on the tools approached the same fault — and go in with a plan.
For UK gas engineers
Five years of gas engineering know-how, in your pocket.
National Gas Engineers is the app where Gas Safe registered engineers swap real fixes — a searchable archive of call-outs, fault codes, videos and advice from engineers who've already had the job in front of them.
Free to download
Gas Safe number verified
Engineers only
Trade forum
Post a problem, get answers from engineers who've fixed it.
Video knowledge base
Watch real jobs and fixes filmed on site.
Diagnosis search
Search errors and fault codes across the whole archive.
Verified members
Registration checked against your Gas Safe number.
What's inside
Built around how engineers actually work
Every screen exists because someone was stood in a customer's kitchen needing an answer.
The forum
Ask the trade. Get a straight answer.
Stuck on a job? Post it. The forum is organised by the things that actually go wrong, so your question lands in front of engineers who've seen it before — not a general audience.
Gas Safety
Ventilation
Tools & Equipment
Boilers
Regulations
- Browse by category or search every thread
- Every poster is a verified gas engineer
- Post photos straight from the job
Knowledge base
A video library of real fixes
Not classroom theory — footage filmed on site by working engineers. Flue runs, gas valves, wiring centres, pressure tests and the awkward installs nobody warns you about in training.
- Full-screen playback with skip controls
- New clips added as the community shares them
- Watch on the van before you go in
Diagnosis & errors
Search five years of fault codes
Type the error code, the symptom or the appliance. The app searches an archive of engineer conversations going back years and shows you what was actually wrong last time — and what fixed it.
- Search by fault code, symptom or make
- Filter across multiple engineer groups
- Dated threads so you can see what's current
How it works
The whole app is five taps
Register with your Gas Safe number, and everything below is open to you.
Home
Offers, training courses and trade suppliers.
Forum
Post a question, help someone else out.
Knowledge base
Video walkthroughs from real jobs.
Search
Fault codes, errors and diagnosis.
Profile
Your licence, your location, your account.
Who it's for
Whatever stage you're at
National Gas Engineers exists to raise the standard of the trade — by making the experience already in the industry easy to reach.
Experienced engineers
Stay sharp on new appliances, regs and techniques — and pass on what you know. The archive is only valuable because senior engineers keep contributing to it.
The wider trade
A single place where UK gas engineers help each other instead of working in isolation — mentorship, shared standards and a community that lifts the whole profession.
Security & standards
A closed community, on purpose
The value of the app depends on who's in it. That's why membership isn't open to the public — and why what gets shared inside stays protected.
Verified registration
You register with your Gas Safe number, so the people answering your question are qualified professionals — not hobbyists.
Kept current
Fresh content lands continuously from live conversations, so guidance reflects what the trade is dealing with now.
Copyright protected
Everything shared in the app is copyrighted and can't be reused by third parties without permission. Contributors keep control.
Real networking
Swap ideas, find subcontract work and build relationships with engineers across the country.
For suppliers & trainers
Reach engineers where they already are
The home feed carries offers from training centres, tool suppliers and manufacturers — put in front of a verified, UK-wide audience of working gas engineers rather than a general public.
- ACS training and assessment centres
- Controls, tools and materials suppliers
- Trade-only discounts and launches