10 Ways to Use AI as a Gas Engineer

by | Jul 23, 2026

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Find boiler info and fault codes in seconds

No gas engineer can be expected to remember every single fault code for every single boiler. But rather than asking the customer or Googling for a copy of the manual, AI can help you get what you need straight from the manufacturer’s documentation.

In GES, our AI Boiler Assist has been designed to do exactly that, and it goes beyond simply asking ChatGPT what a code means. We’ve uploaded 2,300+ manuals to a database (which you can also access as PDFs) that the AI uses to inform its answers.

It’ll tell you exactly what you need to know (fault code meanings, reset procedures, part numbers, etc.) in seconds, linking you with the exact page in the manual as a source so you can verify and trust it 100%.

Vaillant ecoTEC pro 30
For the competent person
Installation and maintenance instructions
ecoTEC pro
VUW · GB · IE
1. Safety4
3. Product description8
7. Filling the heating installation19
8. Adapting the unit23
Ask the manual
How can I help?

Ask me about installations, fault diagnosis, or any technical question.

Ask a question…
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Turn a job into a quote or invoice without typing

Setting your prices is fundamental to your business and shouldn’t just be left to AI, but building the actual quotes and invoices themselves? This is where AI can speed up the process.

GES’ AI Quoting & Invoicing lets you describe the work and get a tidy, itemised quote or invoice back, with your prices, ready to send. You stay in charge of what you charge; it just does the paperwork.

Plus, a quote in GES can be converted into an invoice at the click of a button, which is even faster than getting AI to do it.

See what your competitors are charging

It’s always a good idea to know what your competitors are charging. But sitting down to research everyone’s prices is a job few business owners have time to do. AI can pull together rough local pricing and typical rates in minutes, so you can sense-check whether you’re leaving money on the table.

Treat it as a gut-check — your prices are yours. If it makes you wonder, it’s worth working out whether you’re actually charging enough.

Sort your customer database for next year’s service reminders

Constantly digging through your past jobs to work out whose boiler service is due is nobody’s idea of a good time. Hand AI your customer list and past jobs, and it’ll tell you who’s coming up and when, so nothing slips through the cracks.

Better still, you can skip the AI entirely for this one with automated service reminders. Set them once, and customers get chased automatically via service dates that get updated after a certificate is issued. Here’s a quick guide on how to set up boiler service reminders that fill your diary.

Email preview
NS
North Star Heatinghello@northstarheating.co.uk · to Sarah
Time for your annual boiler service, Sarah
Hi Sarah, it's been almost a year since we serviced your Worcester Greenstar 30i. Your next service is due on 14 May 2027. Want me to slot you in?
Just ring me on 0123 123 123 or reply to this email.
Best,
John from North Star Heating

Write your website content

A good website is an extremely valuable marketing tool, but they take time to fully build. Tell AI what you do, where you work, and who you help, and it’ll draft your website pages for you, suggest a good structure, and give you some optimisation tips.

It pairs well with getting the basics right. Our SEO guide for gas engineers covers what actually helps you show up when someone local searches for a heating engineer.

Create social media posts

Most heating businesses know they should post more, and never do. Snap a before-and-after on a job, feed AI the photo and a line about what you did, and it’ll write you a caption.

You could also take it one step further and ask it to plan a social media calendar for you. Upload a bunch of photos and ask it to create a series of posts, suggest the best time to post them, and sort all the writing for you.

Here’s how Kesselmann Heating & Plumbing is using AI to help kickstart their social media presence:

Handle the awkward messages

Whether it’s chasing a late payer, turning down work politely, or replying to a shirty customer, some messages are mentally draining. AI will write you a firm-but-fair version in seconds, so you can send it and get on with your day.

For the money side specifically, it’s worth having a proper system rather than winging each one. Read more about their effectiveness and how to set them up quickly.

Turn voice notes into tidy job notes

It’s always a good idea to write up job notes for your future reference or to keep your team informed, but there’s not always time when rushing from one job to another. Ask AI to transcribe your notes as you speak them: “replaced the diverter valve, flushed the system, customer wants a quote for a smart thermostat”. This is a much faster and easier way of recording clean, readable notes you can drop straight onto the job.

↑ Job notes stored in GES

Check new regs and scheme paperwork

New scheme rules and thick guidance documents are annoyingly complex when you’ve got actual work to do. AI can boil a long document down into plain English and answer specific questions about it, so you get the gist in minutes instead of an hour.

One example is the recent IGEM/UP/1B Edition 4 changes to tightness testing.

Reply to reviews and keep your Google profile ticking over

Replying to every Google review helps you get found locally, but it’s an easy one to let slide. AI can draft quick, professional replies so you can check them off your list in a matter of seconds. If getting more reviews in the first place is the goal, here’s how to get more reviews.

The bottom line

The theme running through all of this is simple. Let AI take the jobs you don’t want (the typing, the digging, the chasing) and keep your hands on the work you’re actually good at.

But remember, AI can get things wrong, so if you’re using it for anything technical, remember to double-check the answer. Think of AI as a keen helper: quick, useful, saves you a load of legwork, but not the one signing off the job. That’s still you.

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