About Gas Engineer Software - GES
Gas Engineer Software (GES) is more than just an easy-to-use gas certificate app. It’s an all-in-one gas engineer software designed to help sole traders and growing teams save time, stay organised, and get paid faster....
Gas Engineer Software (GES) is more than just an easy-to-use gas certificate app. It’s an all-in-one gas engineer software designed to help sole traders and growing teams save time, stay organised, and get paid faster.
Whether you’re a gas engineer, oil engineer, or plumber, use GES to create all your industry certificates & records, issue quotes & invoices, manage schedules, and everything you need to run your business smoothly and professionally.
✔ Average of 6.6 hours saved each week
✔ Average revenue growth of 37% in the first year
✔ Trusted by 6,000+ businesses
✔ Set up in 3 minutes
OVERVIEW — MAIN FEATURES
• Gas cert app for issuing certificates, records, job sheets
• Send quotes and issue invoices
• Schedule jobs with an integrated calendar
• Manage your team from anywhere
• Automated boiler service reminders
• Manage your customer database
• Easy & organised job management
• Accounting software integrations
• Sync to web portal for easy office use
• Full offline access
OIL & GAS CERTIFICATE APP
• Easily create all oil and gas certificates
• Professional & accurate records compliant with the latest regulations.
• Easily track, organise & manage historical records.
GAS CERTIFICATES
• Homeowner Gas Safety Record
• Landlord Gas Safety Record
• Gas Warning Notice
• Gas Service Record
• Gas Breakdown Record
• Installation / Commissioning Checklist
• ND Gas Safety Record
• Leisure Industry Gas Safety Record
• LPG Gas Safety Record
• ND Gas Testing & Purging Record
• ND Catering Record
OIL CERTIFICATES
• CD/10 Oil Firing Installation Completion Report
• CD/11 Oil Firing Servicing and Commissioning Report
• CD/12 Landlord Oil Installation Check
• CD/14 Oil Warning and Advice Notice
• TI/133D Domestic Oil Storage, Tank Spillage and Fire Risk Report
QUOTING & INVOICING
• See all invoices & unpaid jobs & let GES chase late payers with automatic reminders.
• Send professional & customisable invoices seconds after the job has finished.
• Get your quotes in before your competitors. Use template line items for fast quotes.
• Quickly turn your quotes & estimates into invoices at the click of a button.
JOB SCHEDULING
• Simple & easy job creation for your team.
• See where your engineers are and who is available at a glance.
• Let engineers know what their schedule is without coming to the office.
• Eliminate booking errors and conflicts.
AUTOMATED REMINDERS
• Email & SMS boiler service reminders to find extra work.
• Quote follow-ups to win more jobs.
• Invoice payment reminders so you don’t have to chase late payers.
• All reminders are fully customisable
USER & TEAM MANAGEMENT
• Control what your team can see & do with user roles.
• Easily assign jobs to the right engineers at the right time.
• Full job history so you always know the ‘who’, ‘what’ & ‘when’ of every job.
• Our gas app is very easy & quick for your team to use.
CUSTOMER MANAGEMENT SOFTWARE (CRM)
• Access detailed customer information in seconds
• All information available on your mobile device
• Keep all customer information in one consolidated place.
• See which customer hasn’t paid & let our software send automated reminders.
SOFTWARE INTEGRATIONS
• Xero, QuickBooks & Sage accounting software
• Anton, Kane & TPI flue gas analysers
• Crezco open banking payments
REQUEST A DEMO
If you want to see the app in action or get a better idea of how it works, book a demo with our team. We’ll give you a thorough walkthrough & answer any questions.
https://gasengineersoftware.co.uk/gas-engineer-software-demo/
QUESTIONS?
Contact our customer support team at
[email protected] or 0207 129 7058
Previous Versions
Here you can find the changelog of Gas Engineer Software - GES since it was posted on our website on 2016-09-17 21:15:06.
The latest version is 6.76.1 and it was updated on 2026-06-30 10:19:05. See below the changes in each version.
Gas Engineer Software - GES version 6.76.1
Updated At: 2026-06-24
Changes: You can now manually send follow-up emails for your quotes. It’s a quick way to chase the ones you choose, right from the quote screen.
You'll also find in this update:
● Updated tutorial steps with a clearer success message
● A new landlord field on job addresses
● Dates on records now show in the expected format
● More reliable syncing for inspection records
● Various behind-the-scenes performance improvements
Gas Engineer Software - GES version 6.73.2
Updated At: 2026-06-09
Changes: Fresh record screens are here! Creating Gas Safety and ND Gas Safety records now feels clearer and matches the new designs. Update your app to give them a try.
You'll also find in this update:
● Proper CC email separators
● Clearer sync messages that tidy themselves
● A note explaining automatic reminders
● Various behind-the-scenes performance improvements
Gas Engineer Software - GES version 6.72.2
Updated At: 2026-06-01
Changes: With this release of Gas Engineer Software, we've introduced the following changes.
● Better checks to prevent invalid emails
● Emails keep sending even if you close the app
● Default flue type now set to RS
● Various behind-the-scenes performance improvements
Gas Engineer Software - GES version 6.69.2
Updated At: 2026-05-01
Changes: Bank holidays now show in your calendar so you can avoid booking work on those days.
This update also introduces several feature improvements including:
● Invoiced jobs now close straight away
● Missing checkboxes added to Gas Warning Notice
● Signature pop-up updated to new colours
● Smoother job sync
Gas Engineer Software - GES version 6.67.2
Updated At: 2026-04-10
Changes: This update introduces new and redesigned record creation screens, as well as several feature improvements including:
● Better sorting for draft and issued records
● Improved TPI purging, safety colours, buttons, and temperature layout
● Customer numbers can include letters
● Added a "Visual" option for appliance inspections
● Various behind-the-scenes performance improvements
Gas Engineer Software - GES version 6.66.1
Updated At: 2026-03-25
Changes: Our latest update includes a much-requested change to enable you to copy appliance readings straight from a Gas Safety into a Gas Service.
You'll also find in this update:
● Correct CIS deduction for non‑VAT accounts.
● Longer invoice, quote, and estimate line templates are collapsed for a cleaner layout.
● Quotes now support negative values for applying discounts.
● O2 readings on TPI analysers capped at 20.9%.
● Various performance improvements.
Gas Engineer Software - GES version 6.65.1
Updated At: 2026-03-18
Changes: This update brings a highly-requested feature: You can now copy appliance readings straight from a Gas Safety into a Gas Service.
Other changes in this update include:
- Job statuses are now editable from the Edit Event page
- The job description has been added to the invoice cards on the Existing Records & Drafts page
- You can copy job details to event details when creating a new event from a job
- Various performance improvements
Gas Engineer Software - GES version 6.64.2
Updated At: 2026-03-02
Changes: New in: Scanning serial numbers in the dark?—you can now toggle your phone's torch while using the scanner. You'll also find in this update:
● New job sheet time pickers
● The support chat has been moved to Help Centre, with new unread message badges
● Records will no longer be marked as issued while offline
● A more resilient sync process
● Updated invoicing layout
● Various behind‑the‑scenes improvements
Gas Engineer Software - GES version 6.63.1
Updated At: 2026-02-17
Changes: You asked for boiler manuals—and here they are! You can now access manuals for all common makes and models within the app. This update includes a variety of other changes, including:
- A "Request a feature" option in the help centre
- Auto-sync improvements
- Tightening of restricted user access
- Updated record creation pages
Gas Engineer Software - GES version 6.62.1
Updated At: 2026-01-28
Changes: Thanks to your feedback, we've been able to make several quality of life improvements to the app.
- A "Show All History" button in the "All" tab — so you can easily get the history of a customer, site address, or job.
- An improved time selector that rounds to the nearest 15 minutes
- UI updates for the PDF preview screens
