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
support@gasengineersoftware.co.uk or 0207 129 7058
Latest Version
6.69.2Uploaded by
Julian Jazko
Requires Android
Android 11.0+
Category
Free Business AppContent Rating
Everyone
Security Report
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Flag as inappropriateLast updated on May 1, 2026
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