- 1. GES INTEGRATIONS
- 2. EASY SETUP
- 3. Connections that quietly save heating teams hours
- 4. Accounting software
- 5. Flue gas analysers
- 6. Online payments
- 7. Calendar sync
- 8. ACCOUNTING
- 9. Connect your accounting package and forget manual entry
- 10. FLUE GAS ANALYSERS
- 11. Sync readings from your analyser with a dated report
- 12. PAYMENTS
- 13. Make getting paid quick & easy so you never have to chase
- 14. CALENDAR SYNC
- 15. Send your GES appointments to your personal calendar
- 16. TRY GES FOR FREE
- 17. Make GES your all-in-one system to run your business
- 18. All-In-One Software For Heating & Plumbing Businesses
- 19. WIN MORE JOBS
- 20. Quotes & Estimates
- 21. GO PAPERLESS
- 22. Records & Certificates
- 23. GET PAID FASTER
- 24. Invoices & Payments
- 25. 2,300+ MANUALS
- 26. Boiler Manuals & AI Assist
- 27. CONNECT YOUR APPS
- 28. Integrations
- 29. STAY ORGANISED
- 30. Scheduling & Calendar
- 31. GET REPEAT BUSINESS
- 32. Automated Reminders
- 33. STREAMLINE WORK
- 34. Job Management
- 35. CRM SOFTWARE
- 36. Customer Management
- 37. EASY ACCESS CONTROL
- 38. User Management
- 39. LOOK PROFESSIONAL
- 40. Custom Workflows
- 41. Frequently asked questions
- 42. Make your job easier withGas Engineer Software
- 1. GES INTEGRATIONS
- 2. EASY SETUP
- 3. Connections that quietly save heating teams hours
- 4. Accounting software
- 5. Flue gas analysers
- 6. Online payments
- 7. Calendar sync
- 8. ACCOUNTING
- 9. Connect your accounting package and forget manual entry
- 10. FLUE GAS ANALYSERS
- 11. Sync readings from your analyser with a dated report
- 12. PAYMENTS
- 13. Make getting paid quick & easy so you never have to chase
- 14. CALENDAR SYNC
- 15. Send your GES appointments to your personal calendar
- 16. TRY GES FOR FREE
- 17. Make GES your all-in-one system to run your business
- 18. All-In-One Software For Heating & Plumbing Businesses
- 19. WIN MORE JOBS
- 20. Quotes & Estimates
- 21. GO PAPERLESS
- 22. Records & Certificates
- 23. GET PAID FASTER
- 24. Invoices & Payments
- 25. 2,300+ MANUALS
- 26. Boiler Manuals & AI Assist
- 27. CONNECT YOUR APPS
- 28. Integrations
- 29. STAY ORGANISED
- 30. Scheduling & Calendar
- 31. GET REPEAT BUSINESS
- 32. Automated Reminders
- 33. STREAMLINE WORK
- 34. Job Management
- 35. CRM SOFTWARE
- 36. Customer Management
- 37. EASY ACCESS CONTROL
- 38. User Management
- 39. LOOK PROFESSIONAL
- 40. Custom Workflows
- 41. Frequently asked questions
- 42. Make your job easier withGas Engineer Software
GES INTEGRATIONS
Link GES to the tools & software you already use
- Sync customers, invoices, and payments
- Pull readings from your analyser into your certificates
- Get paid on-site with a QR code or payment link
EASY SETUP
Connections that quietly save heating teams hours
From accounting integrations for admin staff and business owners to flue gas analyser integrations for engineers, GES accelerates the way you work with the tools you prefer.
Accounting software
Customers, invoices and payments flow straight into your books. MTD-ready, and zero double entry.
Flue gas analysers
Pull readings over Bluetooth into your certificates. Exact numbers, every time, with dated report.
Online payments
A QR code or link on every invoice. Customers pay on the spot for a £1 flat fee, no card machines.
Calendar sync
Every job and appointment syncs both ways with the calendar you already use — Google, Outlook, Apple or any other.
"The integration with QuickBooks was seamless. GES is time-saving software that helps keep me on track."
ACCOUNTING
Connect your accounting package and forget manual entry
Run the job on GES and the paperwork takes care of itself. Every customer, invoice and payment syncs across automatically so you, or your accountant, never re-key a thing.
- MTD ready — customers, invoices & payments sync across
- No manual data entry — less tedious typing, fewer human errors
- Works with all three major UK accounting systems
FLUE GAS ANALYSERS
Sync readings from your analyser with a dated report
Hit “Import Readings” while you build the certificate and the numbers drop straight in with a dated report that stamps in your calibration date and results.
- Import analyser readings over Bluetooth in seconds
- 100% accurate every time with the exact number and no missing zeros
- A dated report is generated when you sync readings
PAYMENTS
Make getting paid quick & easy so you never have to chase
Every invoice carries a QR code and a payment link. Customers tap, pay from their banking app, and the money lands straight in your account — no card machine, no faff.
- Convenient for customers with a QR code or payment link
- Get paid on the spot for less chasing and better cash flow
- £1 flat fee per invoice, no matter the amount
CALENDAR SYNC
Send your GES appointments to your personal calendar
Use your unique calendar feed URL to send GES events to your Apple, Google, Outlook, or other external calendar. Keep work and personal events in one place.
- Send GES events to your personal calendar
- One-way sync, so your personal events stay private
- Updates are automatically synced across
TRY GES FOR FREE
Make GES your all-in-one system to run your business
Try GES for free in a 14-day trial.
- Test integrations during trial
- Certificates, invoices & more
- Free onboarding call included
- No credit card required
TRUSTED BY 7,000+ UK HEATING BUSINESSES
★★★★★
Based on 1500+ reviews
ALL FEATURES
All-In-One Software For Heating & Plumbing Businesses
WIN MORE JOBS
Quotes & Estimates
Create winning quotes in minutes with template line items. Then, convert them to invoices in one click.
GO PAPERLESS
Records & Certificates
All gas industry certificates. In your pocket, for every job.
GET PAID FASTER
Invoices & Payments
Convert quotesto invoices. Complete with easy & low-fee digital payments.
2,300+ MANUALS
Boiler Manuals & AI Assist
Get any information you need about a boiler in seconds with the GES app.
CONNECT YOUR APPS
Integrations
Save time by sending data to your accounting software and connecting to your analyser.
STAY ORGANISED
Scheduling & Calendar
Manage your jobs & team in one place.
GET REPEAT BUSINESS
Automated Reminders
Send service reminders & chase late payers — without lifting a finger.
STREAMLINE WORK
Job Management
Keep everything together with an activity history for all customers.
CRM SOFTWARE
Customer Management
Keep all of your customer details tidy & in one place.
EASY ACCESS CONTROL
User Management
Give users access to what they need.
LOOK PROFESSIONAL
Custom Workflows
Add your logo to your records, create custom job statuses, and more.
Frequently asked questions
Got a question we haven't covered? Talk to our team.
How do integrations work with Gas Engineer Software?
An integration connects two separate systems so they share data. For accounting, it means you handle everything from GES instead of switching between apps. For analysers, it's as simple as tapping "Import Readings" while you build a certificate — as long as Bluetooth is on for both your device and analyser, it appears for you to select. Setting up GES with an integration is quick and easy. See our guides here.
What can I integrate with GES?
Currently, you can connect GES with accounting software (Xero, QuickBooks, and Sage), flue gas analysers (Kane, TPI, and Anton), your external calendar (Google, Apple, Outlook, and more), and Crezco for online payments.
How does it integrate with my accounting software?
All your customers, invoices and payments need to land in your accounts. Running on GES means that data is already digitised — the integration simply syncs it across to Xero, QuickBooks or Sage, so there's no manual re-keying as you work, get paid and win new customers.
How do I set an integration up?
Once you've signed up, tap the cog icon next to your profile name, choose "Manage" under Integration Settings, and pick the integration you want. Follow the on-screen steps.
Will there be more integrations?
Absolutely. We're continually developing and improving GES, and integrations are an important part of that. If there's one you'd like to see, send us a message.
What does the payment integration cost?
Crezco open banking payments are a fixed £1 fee per invoice, whatever the amount — usually far less than card processing fees. The money goes straight to your bank account.
Paul Laborevics
York Heating and Plumbing Solutions
"The customer service is spot on. Time-saving software that helps keep me on track.
Very happy and satisfied."
Phil Shakespeare
Premium Heating Services Ltd
"Brilliant app. I’ve been using it for 3 months and it’s so easy to use for everything from certificates to service reminders and invoicing."
Brett Carey
Carey Plumbing & Heating
"From gas records to quotes, estimates, and invoices, it’s saved us so much time and money. I can’t recommend this more."
Make your job easier with
Gas Engineer Software
Efficient quoting, scheduling & certificates. All in one place.
GES helps you manage your heating & plumbing business and save hours each week on admin and paperwork.