Gas Engineer Software - GES

Run your heating & plumbing business in one place and keep the diary full.

Gas Engineer Software (GES) is the complete job management system built specifically for UK heating and plumbing businesses. Certificates, jobs, quotes, invoices, payments, on-site tools and automatic service reminders: One app, for every job, on your phone or back at the office.

More than 7,000 UK businesses trust GES to run their jobs, backed by 14 years in the market.

More than a basic gas certificate app, GES is a full system that runs the business issuing them, then turns this year's certificate into next year's booked work.

GROW YOUR BUSINESS

🔁 Automatic service reminders keep loyal customers coming back year after year and book the repeat work for you

📈 Businesses on GES see an average 37% revenue increase in their first year

💳 Get paid faster with QR codes and payment links included with your invoices (powered by Crezco), with automatic chasing for late payers

LOSE THE PAPERWORK

🗓️ Quickly generate estimates, quotes, and invoices with templates or an AI draft, complete with statuses and payment tracking.

🔄 Convert accepted quotes into invoices in one tap

📋 UK gas, oil, and heat pump certificates, signed on-site and sent

📩 Send appointment confirmations to customers in one click

💰 Generate customer statements in seconds

🔔 GES saves each person on the team 6.6+ hours a week

BUILT FOR HEATING & PLUMBING

🔧 The entire GES workflow is designed around heating & plumbing jobs, not bolted onto a generic trades system

👥 Manage your jobs, your diary, and your team in one place. GES works perfectly for sole traders and larger operations that need to connect office staff with engineers

🔌 Sync payments, customers, and invoices to Xero, QuickBooks, or Sage

📲 Pull readings from your Anton, Kane or TPI flue gas analyser straight into a certificate

📖 Reference 2,300+ boiler manual PDFs in the app, along with AI Assist to get the answers you need faster

🤳 In-app calculators for gas rating, pipe sizing, installation volume, and tightness testing

🇬🇧 UK-built, with UK support that actually knows heating via phone, chat, and email

🛜 Full offline access on the mobile apps, syncing when next online

TRUSTED WITH WHAT MATTERS

Your business data, certificates and property records are important, and the engine of your repeat work. GES has 14 years of experience keeping everything safe & adhering to data security best practises.

EVERY CERTIFICATE, BUILT IN

Gas: Homeowner Gas Safety Record · Landlord Gas Safety Record (CP12) · Gas Warning Notice · Gas Service Record · Gas Breakdown Record · Installation & Commissioning Checklist · Non-Domestic Gas Safety Record · Leisure Industry Gas Safety Record · LPG Gas Safety Record · Non-Domestic Testing & Purging Record · Non-Domestic Catering Record.

Oil: CD/10 Installation Completion · CD/11 Servicing & Commissioning · CD/12 Landlord Oil Installation Check · CD/14 Oil Warning & Advice Notice · TI/133D Oil Storage & Tank Risk Report.

Other: Air Source Heat Pump Service Record, Legionella Risk Assessment, Minor Electrical Works Record, Unvented Hot Water Cylinder

EVERYTHING ELSE IN ONE PLACE

Job sheets · quoting & invoicing · job scheduling with calendar · team management and roles · customer database (CRM) · automatic boiler service reminders · email and SMS reminders · web portal syncing · full offline access · gas rate, pipe sizing & installation volume calculators.

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