- 1. How oil engineers use GES
- 2. See your day & jobs on your phone
- 3. GES helps you get the job done, even with no signal
- 4. The easiest way to create an OFTEC oil certificate
- 5. Issue an invoice and get paid
- 6. Secure repeat business through GES
- 7. On your own, or part of a team?
- 8. Just you and the van?
- 9. Running a small team from the van?
- 10. Engineers and office staff?
- 11. Create OFTEC oil certificates on your phone
- 12. FREE 14-DAY TRIAL
- 13. Try GES on your next job
- 14. Built for oil, gas, and heating businesses
- 15. WIN MORE JOBS
- 16. Quotes & Estimates
- 17. GO PAPERLESS
- 18. Records & Certificates
- 19. GET PAID FASTER
- 20. Invoices & Payments
- 21. WORK FASTER ON SITE
- 22. Tools & Calculators
- 23. 2,300+ MANUALS
- 24. Boiler Manuals & AI Assist
- 25. CONNECT YOUR APPS
- 26. Integrations
- 27. STAY ORGANISED
- 28. Scheduling & Calendar
- 29. GET REPEAT BUSINESS
- 30. Automated Reminders
- 31. STREAMLINE WORK
- 32. Job Management
- 33. CRM SOFTWARE
- 34. Customer Management
- 35. EASY ACCESS CONTROL
- 36. User Management
- 37. LOOK PROFESSIONAL
- 38. Custom Workflows
- 1. How oil engineers use GES
- 2. See your day & jobs on your phone
- 3. GES helps you get the job done, even with no signal
- 4. The easiest way to create an OFTEC oil certificate
- 5. Issue an invoice and get paid
- 6. Secure repeat business through GES
- 7. On your own, or part of a team?
- 8. Just you and the van?
- 9. Running a small team from the van?
- 10. Engineers and office staff?
- 11. Create OFTEC oil certificates on your phone
- 12. FREE 14-DAY TRIAL
- 13. Try GES on your next job
- 14. Built for oil, gas, and heating businesses
- 15. WIN MORE JOBS
- 16. Quotes & Estimates
- 17. GO PAPERLESS
- 18. Records & Certificates
- 19. GET PAID FASTER
- 20. Invoices & Payments
- 21. WORK FASTER ON SITE
- 22. Tools & Calculators
- 23. 2,300+ MANUALS
- 24. Boiler Manuals & AI Assist
- 25. CONNECT YOUR APPS
- 26. Integrations
- 27. STAY ORGANISED
- 28. Scheduling & Calendar
- 29. GET REPEAT BUSINESS
- 30. Automated Reminders
- 31. STREAMLINE WORK
- 32. Job Management
- 33. CRM SOFTWARE
- 34. Customer Management
- 35. EASY ACCESS CONTROL
- 36. User Management
- 37. LOOK PROFESSIONAL
- 38. Custom Workflows
The heating business platform made for oil engineers
From creating OFTEC oil certificates to sending oil service reminders and scheduling jobs, Gas Engineer Software (GES) has everything oil engineers need to run their day.
★★★★★★★★★★
4.7
★★★★★★★★★★
4.4
★★★★★★★★★★
4.8
How oil engineers use GES
GES is an all-in-one job management solution for heating businesses. Click on any for more detail.
Scheduling, routing, and any past notes available
GES works offline. Check oil boiler manuals & AI Assist
A full list of records needed for work on oil boilers
Invoice the job and have the customer pay
Service reminder automatically sent
See your day & jobs on your phone
Schedule your jobs through GES for a clear schedule with all job info attached.
- Complete customer history in a few taps, including records, invoices and site notes
- Appliance details and notes saved against the property
- Sync events to your personal calendar
- Easy routing with Google or Apple Maps
GES helps you get the job done, even with no signal
A lot of oil work is rural. GES is offline-first, so the app keeps working and records, notes and photos sync later.
- Issue records, attach photos, add job notes and more with no signal
- 2,300+ oil and gas fired boiler manuals, plus AI Assist
CD/11 Servicing Record
Record completed
Bramble Farm · 22 Nov · signed on site
CompleteCD/11 Servicing Record
No connection
Saved and queued to send later
QueuedThe easiest way to create an OFTEC oil certificate
GES makes it quick and easy to create a certificate for your customer.
- Customer, property, and appliance info pre-filled
- Import readings straight from your Anton, Kane or TPI analyser
- Sign & send on-site, CC’ing whoever needs a copy
- Saves offline and sends automatically once you’re back in signal
CD/12 Report – Part 3
Customer Signature
Issue an invoice and get paid
Build an invoice from templated items on the app and close off the job before heading to the next.
- Template line items for quick invoices, or convert a quote directly
- Easy payments for your customers through a link or QR code
- Syncs to Xero, QuickBooks or Sage automatically
Secure repeat business through GES
GES records the service date and sets the reminder for next year, so this year's customer becomes next year's job.
- Customisable email & SMS reminders
- Set 6 or 12 month appliance servicing schedules
- Great for customers
On your own, or part of a team?
All-in-one software made for heating & plumbing businesses. GES helps sole traders, engineers part of large teams, and everyone in between.
LIST OF CERTIFICATES
Create OFTEC oil certificates on your phone
Below is a complete list of all the gas and oil certificates we currently provide for heating & plumbing companies. Our certificates are Gas Safe Register compliant and can be used for any job.
OFTEC Oil Records 5 types See all
- CD/10 Oil Firing Installation Completion Report
- CD/11 Oil Firing Servicing & Commissioning Report
- CD/12 Landlord’s Oil Installation Check
- CD/14 Oil Warning & Advice Notice
- TI/133D Oil Spill Risk Assessment
Do Gas Work Too? 11 types See all
- Domestic
- Homeowner Gas Safety Certificate
- Landlord Gas Safety Certificate
- Gas Warning Notice
- Gas Service Record
- Gas Breakdown Record
- Installation / Commissioning Checklist
- Non-Domestic
- ND Gas Safety Record
- Leisure Industry Gas Safety Record
- LPG Gas Safety Record
- ND Gas Testing & Purging Record
- ND Catering Record
Miscellaneous 3 types See all
- Legionella Risk Assessment
- Minor Electrical Works Record
- Unvented Hot Water Cylinder
FREE 14-DAY TRIAL
Try GES on your next job
Build OFTEC certificates, issue invoices, add jobs, and much more. All features available, no card details required.
CORE FEATURES
Built for oil, gas, and heating 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.
WORK FASTER ON SITE
Tools & Calculators
Gas rate, pipe sizing and more — built into the app, working offline and feeding straight into your certificates.
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.
