Essential Software for Gas Installers and Heating Engineers and Plumbers

Create Gas Reports, Invoices, Quotes, Job sheets and many more. Get automated reminders each year to boost your annual repeat income. say good bye to paper forever.

Link your account to Quickbooks and Xero and be MTD compliant.

Gas Checker allows you to save, email and print them, this means you never have to carry a paper certificate book ever again. We include the following certificates:- Domestic Gas Safety Certificate, Gas breakdown/Service Record, Gas Warning Notice, Gas Service/Maintenance Check List, Leisure Industry Gas Safety Certificate, LPG Gas Safety Record.

The app has many powerful features, which will help you fill in the required certificate easily and smoothly, all data can then be synced to the WEB so you will never lose it.

Possibly the most useful App a Gas Engineer could wish for.

Twitter @gaschecker

When Registering for the first time after install, please make sure of the following

1) Ensure your username does not have any spaces ie Gas Checker - it should be GASCHECKER

2) Depending on the file size of your image will depend on the time it takes to Register your device. The Device needs to contact the Gas Checker server, So please be patient

we hope you find this information helpful

What’s New

Version 12.18

Fixed Mobile Catering Vehicle Next Inspection Date in Preview PDF

Ratings and Reviews

3.0 out of 5
29 Ratings

29 Ratings

Ex PFC Wintergreen ,

Good basic package but has big flaws

I’ve been using this software for a couple of years or so and it has been very useful but the last update still hasn’t addressed the problem with sending multiple pdf attachments and I’m losing time using this now.
I find the layout of the app much better than other ones that are available and filling out certificates and renewing them is straightforward and quick.
The desktop site is not very well planned and I don’t bother with it much. The page needs to reload too often, you can’t send multiple pdfs from the desktop site without downloading them individually which makes cloud storage redundant and the reminders don’t work very well and it shows outstanding jobs for jobs I’ve already done.
3 stars... I think it’s more usable on site and easier to navigate than other apps I’ve tried but will they manage to sort the multiple pdf issue before I jump ship... who knows?

gas love ,

Ok but not great

Customer service is ok on some issues but not everything.

Probs i have experienced after over 1000 invoices and 500 gas safety certificates....

-Limited invoicing text

-emails sent from the app always end up in my customers junk mail or returned as spam despite many attempts to resolve.

-Software saves multiple identical contacts for landlords with more than one property

-desktop figures never match the app figures

-software regularly gets corrupted files that mess with syncing and have to be solved by the developers

Contacts I have saved appear in my iOS contacts on my phone but can disappear from the app software

I have contacted customer service about all these issues and only some can be remedied.

Great for gas safety’s but don’t rely on it for your invoicing and accounts.

Markhornby ,


I've been using this app since 2012 , I do hundreds of cp12's every year and it sends reminders to customers by email. I use it for all my invoices, warning notices and CP12’s. It has been amazing as I’m useless with paperwork! Everything is stored and if any issues the technical is amazing ( I just asked for my clients invoices for last tax year and they send a spread sheet! WOW!
I had 8 years on this app and the cost of around £10 per month is too cheap. I lost my phone last year and they simply back up all my 7 years to the new phone.
Best thing ever for Gas engineers.

App Privacy

The developer, GasSoft limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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