What paperwork does a fire alarm installer in the UK have to keep?

design, install and commissioning certificates, service records. BS 5839-1:2025 and BS 5839-6, under the Fire Safety Order 2005.

Is there an app for fire alarm installers that works with no signal?

Yes. Simplogic for gas & electrical fills in on the phone at the job, works with no signal in a loft or boiler cupboard, and syncs when the signal returns.

For fire alarm installers

BS 5839 certificates without the retyping

Fill it in at the job, on the phone, while you're stood there. The certificate, the invoice off the same visit, the photos. By the time you're back in the van it's written up and filed.

design, install and commissioning certificates, service records — the forms you actually issue, not a generic template
Works with no signal, in a loft or a boiler cupboard, and catches up later
The invoice comes off the same job, with your payment link on it

The app on a phone: a CP12 landlord gas safety record being filled in by voice, three fields of twenty done. — The write-up as it happens at the boiler: spoken in, field by field, twenty fields to a finished CP12. It works with no signal and sends itself when you get one.

Start free →30 days free. No card to start.

What a fire alarm installer has to comply with

BS 5839-1:2025 and BS 5839-6, under the Fire Safety Order 2005. There's a public reference for fire alarm installers — free, no sign-up.

What applies to a fire alarm installer

What it costs

30 days free to start, and no card until you decide. If you keep it:

Sole Trader£29/monthOne engineer, working for themselves. £290 a year — two months free.

Plus (Most features)£49/monthA growing trade business. £490 a year — two months free.

A mate or apprentice works under someone else’s registration, so there’s nothing here to charge for. So the mate tier is free.

Not a fire alarm installer?

Find your trade — every trade, what applies to it, and which package answers it.