Best PAT Testing Software for Electricians in 2026
A practical comparison of PAT testing software for UK electricians in 2026, covering what good software should do and how Zappy Pro Tools stacks up for instrument tracking, retest intervals and getting paid.
PAT testing is volume work. You're not spending an hour agonising over one appliance, you're moving through forty kettles, extension leads and monitors in an office block before lunch, then writing up the lot before you forget which socket was which. The right software turns that into a fifteen-minute job. The wrong software, or no software at all, turns it into an evening of paperwork with a cold cup of tea. Here's what good PAT testing software actually needs to do in 2026, and an honest look at where the main options stand, including Zappy Pro Tools.
What PAT testing software should actually do
Before you pick a tool, it helps to know what "good" looks like. A lot of apps call themselves PAT software and just give you a form to fill in, which isn't much better than a paper pad. The ones worth paying for (or using for free) handle the repetitive bits for you.
Fast appliance entry. If you're typing the same manufacturer, same class, same visual checks for the twentieth time that day, the software is working against you. Look for appliance suggestions as you type, so "ket" offers Kettle without you finishing the word, and for each new appliance to start in the last one's location rather than making you pick "Kitchen" again from a dropdown every single time.
Retest intervals built in, not guessed. Different environments need different retest frequencies: a construction site extension lead on a 3-month cycle, an office monitor on 12 months or longer. Decent software offers the standard 3 and 6 month options alongside the longer intervals, so you're not doing the maths on-site.
Instrument and calibration tracking. Your PAT tester needs calibrating, and if you turn up to a job with an instrument that's out of date, your certificate is worthless in any dispute. Software that saves your tester to a device list, lets you pick it with one tap on every job, and reminds you when calibration's due is doing a job your memory shouldn't have to.
Class II and visual check prompts. Appliances without an earth (double-insulated drills, phone chargers, most modern kit) need different checks to Class I. A hint that flags likely Class II items as you add them saves a few seconds each time, and a few seconds times forty appliances is real time back.
A proper confirmation before you mark something as passed. It sounds basic, but a quick "all checks passed" tick before you can mark Pass stops a rushed afternoon turning into a missed visual defect. It's a safety net, not red tape.
PDF certificates your client can actually use and pay against. A landlord or facilities manager wants a document, often one per appliance or one summary covering the batch, that looks professional and that they can file for their own compliance records. If you can attach a payment link to the invoice that follows it, even better, because chasing payment for a routine PAT job shouldn't need a phone call.
What to check before you choose
Not every electrician needs the same thing from PAT software. A sole trader doing the odd landlord job once a month has different needs to someone running regular contracts for offices and schools. Before you commit, check:
• Does it work offline, or near-offline, for sites with poor signal (basements, warehouses, old buildings)?
• Can you batch-enter appliances quickly, or are you tapping through six screens per item?
• Does it track your instrument's calibration date automatically, or is that still on you?
• Can you issue a certificate and raise an invoice from the same app, or are you exporting to something else?
• Is there a free tier, or does every feature sit behind a subscription from day one?
The comparison
Here's how the main options stack up for electricians doing PAT work in 2026, from dedicated PAT apps to general certificate software that includes PAT as one of several certificate types.
| Software | Best for | PAT-specific strengths | Drawback | |---|---|---|---| | Zappy Pro Tools | Electricians who also quote, invoice and issue other certificates | Saved tester with calibration reminders, last-tester-in-one-tap, Class II hints, 3/6 month retest dates, location carries over between appliances | Newer to the market than some dedicated PAT-only apps | | Dedicated PAT-only apps | High-volume PAT contractors with no other certificate needs | Often fast bulk entry, barcode scanning on some | Usually no quoting or invoicing, so you're juggling a second tool for the money side | | Spreadsheet + generic PDF template | Very low volume, occasional PAT jobs | Free, flexible | No calibration tracking, no retest reminders, easy to make typos across repeated entries, looks unprofessional next to a proper certificate | | General trade management software (not PAT-specific) | Businesses wanting one tool for scheduling and invoicing across all trades | Decent for jobs and invoicing | PAT certificate fields are often an afterthought, missing Class II prompts or retest interval logic |
The honest pattern: dedicated PAT apps can be quick for the test itself but leave you exporting data elsewhere to invoice. Spreadsheets are fine until you've got more than a handful of appliances and someone asks for a proper certificate. General trade software is strong on the business side but weak on PAT-specific logic like Class II flagging or calibration reminders.
Zappy Pro Tools sits in the middle: it's built for electricians specifically, so the certificate logic (Class II hints, retest intervals, instrument tracking) is there alongside quoting and invoicing in the same place. If you've already covered our comparison of electrical certificate software, the PAT features follow the same pattern as the EICR and EIC tools: save time on repetitive entry, flag what needs attention, and let you finish the paperwork before you've left the van.
Why instrument tracking matters more than it seems
It's easy to treat calibration as a once-a-year admin chore you'll get round to. But if a landlord or letting agent ever queries a PAT certificate, maybe because an appliance failed shortly after you passed it, the first thing a competent person will ask is whether your tester was in calibration on the day. If you can't answer that in ten seconds, you've got a problem.
Saving your tester to a device list with a calibration due date means the reminder comes to you instead of you having to remember it. It also means every certificate you issue automatically references the right instrument details without you typing them out appliance by appliance.
Before you start a PAT round
• Tester calibration in date and confirmed in the app
• Client site details and access arranged
• Retest interval agreed for the environment (3, 6 or 12 months)
• Spare leads or adaptors for awkward sockets
• App synced or downloaded for offline use if signal's poor
• Invoice template ready to send the same day
Where PAT fits with the rest of your paperwork
If you're doing PAT testing as a one-off, any half-decent app will do. But most electricians who take on landlord and business PAT contracts are doing it alongside EICRs, quotes for remedial work, and invoices that need paying promptly. That's where having PAT testing in the same tool as your quotes and invoicing actually saves hours, not minutes.
A landlord who books you for an annual PAT round often needs an EICR on the same visit, or a quote raised on the spot for a failed appliance that needs replacing rather than repairing. If your quoting, invoicing and certificate software are three different apps, you're re-entering the same client details three times. We've covered the wider cost of that fragmentation in our look at whether Xero is enough to run an electrical business: accounts software handles the money, but it was never built to carry PAT schedules or retest dates.
How long PAT paperwork actually takes
Most electricians underestimate how much time they lose to re-typing the same details across appliances, chasing calibration certificates, and formatting PDFs that look presentable enough to send to a facilities manager. Work it out properly before you decide whether better software is worth paying for.
Getting more PAT work in the first place
Software sorts the paperwork, but you still need the jobs coming in. If you're relying on word of mouth alone, you're leaving volume work on the table, and landlords with multi-property portfolios are exactly the clients worth chasing for repeat annual contracts. If you're a South Yorkshire electrician, joining Zappy puts you in front of homeowners and landlords posting jobs locally, without the upfront marketing spend.
FAQ
Do I need separate software for PAT testing and other electrical certificates? No, and it's usually a mistake to run them separately. Software that covers PAT, EICR, EIC and Minor Works in one place means client and site details carry across, and you're not duplicating data entry across different apps.
How often should appliances be PAT tested? It depends on the environment and appliance type. Construction sites and high-risk settings often need 3-month intervals, offices and lower-risk environments can run to 12 months or longer. A competent assessment of the environment should set the interval, not a blanket rule.
Can PAT testing software remind me when my tester needs calibrating? Good software should. Saving your instrument to a device list with its calibration date means you get a reminder before it lapses, rather than finding out when a certificate gets queried.
Is a spreadsheet good enough for occasional PAT jobs? For a handful of appliances once a year, it might get you by, but it won't track calibration, won't flag retest intervals properly, and won't produce a certificate that looks as credible as proper software. Once you're doing regular landlord or business contracts, it's worth switching.
Does Zappy Pro Tools charge for PAT certificates? Zappy Pro Tools has a free tier alongside the paid Zappy Pro upgrade. Check /pro-tools for what's included at each level before you commit to a workflow.
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