Digital certificates and job management
Create certificates on site, keep jobs and customers organised, send quotes and invoices, and bring annual work back with service reminders, all from one app.
One connected workflow
Gas Certificate App connects your diary, customer records, digital certificates, quotes, invoices and service reminders. Each stage stays linked to the same customer and property, so the job is easier to pick up and finish.
Add the appointment to the diary and keep the customer, property and visit details together.
Open the job on a supported mobile device and work from the details already saved against the address.
Create the relevant digital certificate, add the job information and send the finished PDF to the customer.
Create the next document in the same app, keeping the financial paperwork connected to the work.
Send certificate reminders and let customers accept or decline, helping you organise the follow-up.
Made for work on site
Create the paperwork, find the job information and keep repeat work moving without stitching together a collection of separate tools.
Certificates
Create, send and store domestic, commercial, oil and other job records from supported mobile devices or desktop.
Repeat work
Send service reminders by email or SMS. Customers can accept or decline, helping you see which annual jobs need booking. SMS credits cost extra.
Would you like your gas engineer to arrange an appointment?
Calculations
Run the calculation inside the certificate instead of switching apps or writing it out separately.
On-site reference
Search boiler manuals while working on the certificate, keeping useful technical information closer to the job.
Repeat jobs
Open a fully synced past certificate, duplicate it and update only the details that have changed.
Poor signal
Switch Offline Mode on before signal drops, then create and save new certificates on a supported mobile device. Sync when you reconnect.
Digital certificate categories
Choose the record you need, complete it digitally and keep it with the customer and job. Here are some of the certificate types available in Gas Certificate App.
Complete the everyday records you need for landlords, homeowners, servicing and breakdown work, then send a professional copy to your customer.
Keep paperwork clear and consistent across larger sites, commercial servicing and repeat contract work, whether you are using mobile or desktop.
Keep oil installation, servicing and safety paperwork together with the rest of your customer history, without returning to separate paper forms.
The examples above are a snapshot. Use the category links to see the relevant certificate options.
One account, wherever you work
Use Gas Certificate App on mobile or tablet while you are out on jobs, then move to desktop when it is time to organise the diary, review records or catch up on admin.
Mobile and tablet
Desktop
Offline Mode works on supported mobile devices and must be switched on before you lose signal. New certificates sync after you reconnect.
Choose an account role, then control access for the way your business actually works.
Create and manage certificates, jobs, customers, quotes and invoices, use reporting and integrations, and manage user permissions.
Set access to suit the person and their job. An Additional User can be given the same permissions as a Main Engineer or Admin User.
Manage jobs, customer records, the diary, quotes, invoices and reporting, and view completed certificate records from the office.
Tools that work together
Bring readings in from a compatible gas analyser, then move supported billing information into your accounting workflow without entering everything again from scratch.
QuickBooks connects through an integration. Xero uses a supported data export. Gas analyser compatibility depends on the brand, model and connection method.
Compatible models only Support varies by analyser model and connection method.
Real customers, real workflows
See how Gas Certificate App fits into everyday engineering businesses, from independent engineers completing repeat work to larger organisations managing a team.
Cardiff Council chose Gas Certificate App to help its team create, store and find gas certificate records through a clearer, more manageable system.
Just being able to use an email and password to login on a different device is so much easier. Mark, Cardiff CouncilRead the Cardiff Council case study
Gas Certificate App makes my life easier. It saves me time by automatically sending reminders to landlords and integrates with TPI, so I can connect my analyser and let the app do the rest. It’s a no-brainer!
I’ve been using Gas Certificate App for three years now, and it’s incredibly user-friendly. It saves me time with automatic invoicing and duplicating certificates for annual work. I always recommend it, it’s the most user-friendly app out there!
Simple pricing for gas engineers
Pay monthly for flexibility or choose yearly to reduce the overall cost. There is no stripped-back plan that removes the useful tools you came for.
Monthly
Pay each month for every active user.
Yearly Save £24
Works out at £18 + VAT per month.
The price is the same for Main Engineer, Additional User and Admin User accounts. What each person can do depends on their role and permissions.
Optional SMS credits are charged separately.
Questions before your first job?
The essentials about certificates, working offline, customer reminders, integrations and setting up your team.
Gas Certificate App brings your certificates, customers, properties, jobs, quotes, invoices and reminders into one system. You can use the mobile app while working on site and the desktop platform for office and admin work.
You can create a range of domestic, commercial and oil certificates and records, including Landlord Gas Safety Records, commercial gas records, oil forms and job sheets. Visit the relevant certificate page to see the current list for each category.
Yes, for new certificate work in the mobile app. Turn Offline Mode on before you lose signal, then create, edit and save new certificates locally. Your work syncs when you reconnect. Previous certificates and PDFs need an internet connection, and the desktop platform is online only.
Yes. The app includes a built-in Gas Rate Calculator and access to boiler manuals inside supported certificate workflows, helping you find the information you need without leaving the certificate.
Yes. When a supported appointment reminder is sent by email, the customer can accept or decline the appointment, and you can see their response in Gas Certificate App.
Gas Certificate App connects directly with QuickBooks, supports a Xero data export and can import readings from supported Testo, TPI and Sauermann analysers. Device compatibility varies by model and connection method.
Yes. You can add Main Engineer, Additional User and Admin User accounts. The Main Engineer has full access and manages permissions, while access for Additional Users can be tailored to the work they need to complete.
Yes. You can start a 14-day free trial without entering payment-card details. If you decide to continue, subscriptions cost £20 + VAT per user each month or £216 + VAT per user each year.
Ready when you are
Start a free 14-day trial and see how Gas Certificate App fits the way you work, from booking the job to sending the certificate and invoice.
