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AI FOR HEATING BUSINESSES

Smart tools that do the bits of the job you’d rather not

We’re building AI into the tasks you can’t (or don’t want to) get to, so you’ve got more time to focus on yourself, your business, and your customer.

How would you like to draft this invoice?

Pick how you'd like to start your invoice. You can always switch by editing the line items afterwards.

Create Manually

Open a blank editor and add line items yourself.

Draft with AI

Describe the job and we'll suggest line items based on your history.

Draft your invoice with AI BETA
Describe the job and we'll suggest line items based on your history.

We'll also factor in this job's saved description and your recent similar quotes.

Attach document (PDF or DOCX)
Start blank instead
INVOICE
Pearson Heating
12 Kiln Lane
Woodstock
OX20 1UL
01993 123456
ADDRESSED TO
Mrs J. Patel
14 Beech Lane
Woodstock
OX20 1TP
Invoice #INV-4291
Invoice Date08/08/2026
Job Reference #441
PAYMENT DUE
DescriptionUnitsUnit priceVATAmount (GBP)
Annual boiler service & check1.00£84.00£16.80£84.00
New magnetic filter1.00£205.00£41.00£205.00
BANK DETAILS
Barclays
Acc 1234 5678
Sort 20-00-00
Total excl. VAT£289.00
VAT Total£57.80
Amount Due (GBP)£289.00

*AI features in Gas Engineer Software are currently in Beta, meaning we’re improving them all the time. 

Boiler Assist
Beta
AI Quoting & Invoicing
Beta
AI Receptionist
Coming soon
Beta Live now

Boiler AI Assist – Find answers from 2,300+ boiler manuals in seconds

Stumped by a fault code? Ask Boiler AI Assist and get a straight answer in seconds. Each answer is pulled from 2,300+ manufacturer manuals built right into the app (accessible as full PDFs), and will link you to the exact page for you to verify the answer.

  • Instant answers on fault codes, reset steps, part numbers, and more.
  • Answers verified and linked to the page from over 2,300+ PDF manuals in the app
  • On your phone, easily accessed in the GES app

Boiler AI Assist

How can I help?

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

How do I put a Worcester 30Si into service mode?
What information must be on a Gas Safety Record?
Vaillant ecoFIT Pure 830 error F22 — what does the manual say?
Ask a question…
Send
Draft your invoice with AI BETA
Describe the job and we'll suggest line items based on your history.
Boiler service, annual gas safety check, and new magnetic filter.

We'll also factor in this job's saved description and your recent similar quotes.

Attach document (PDF or DOCX)
Start blank instead
Beta Live now

AI Quoting & Invoicing – Generated for the job in seconds

Say what you did on the job, and GES will put together an itemised quote or invoice, professionaly worded and ready to send. 

  • Generates a quote or invoice based on your past prices and industry standards
  • Generates a draft for you to edit and change as necessary - nothing is sent until you approve it
  • Send your invoice with a payment link
  • Automated reminders follow-up on quotes and chase late payers
Coming soon

AI Receptionist – Takes calls and books jobs when you can’t

Never lose another job because you couldn’t pick up the phone. The AI Receptionist will answer your calls when you can’t, note down the customer’s details and the problem, email you the details, and even book the work straight into your diary.

AI Receptionist

Caller
Mrs J. Patel
Number
+44 7462 199735
Reason
Boiler not firing up
Booking created Job 441 · Thu 09:00 · Mrs J. Patel
Transcript

AI: Hello, you've reached Pearson Heating. We're unable to pick up the phone at the moment. I'm the AI assistant and I can take a message or book you in. How can I help?

User: Hi, my boiler's not firing up. Can someone come take a look?

AI: Sorry to hear that. I can get an engineer out to you. Are you free Thursday morning?

User: Yes, Thursday morning works well.

AI: Great. Can I take your name?

User: It's Mrs Patel.

AI: Thank you, Mrs Patel. You're booked in for Thursday at 9am.

TRY GES FOR FREE

Run a smarter business for you & your customers

Try all GES features for free in a 14-day free trial

  • Experiment with AI features
  • Create gas certificates
  • Free onboarding call included
  • No credit card required
TRUSTED BY 7,000+ UK HEATING BUSINESSES

★★★★★
Based on 1500+ reviews

ALL FEATURES

Everything you need for the job in one place

See how you can save time with our all-in-one software for heating & plumbing businesses:

Frequently asked questions

Got a question we haven't covered? Talk to our team.

What AI features does Gas Engineer Software have?

Boiler AI Assist answers boiler questions from the manuals built into the app. AI Quoting and Invoicing turns a few words about the job into a tidy, itemised draft. And the AI Receptionist, which is on the way, answers your calls and books work in when you can't get to the phone.

Can I trust what the AI gives me?

Treat it as a fast first draft, not the final word. Boiler AI Assist links the exact manual page behind every answer, so you can check it in a tap. With quoting and invoicing, you set every price and read it over before anything goes out. The features are new and we keep improving them, but you always have the final say.

How does Boiler AI Assist work?

Ask it a question and it finds the right manual, pulls the answer, and shows you the page it came from. Fault codes, reset steps, part numbers, that sort of thing, without searching for the manual.

How does AI Quoting and Invoicing work?

Type or say a few rough words about the job. The app writes it up as a professional, itemised quote or invoice, ready to send with a payment link. You check the figures first. The AI does the typing; the pricing is still yours.

What is the AI Receptionist?

It answers the phone when you're on the tools, takes the customer's details and the problem, and books the job straight into your diary. It's coming soon, and we'll let you know the moment it's ready to try.

Do the AI features cost extra, and can I try them?

AI features in GES are available on the Pro plan. All can be tried for free with a 14 day free trial.