From fit-outs and new-build developments to rewires and maintenance contracts, DuoApp keeps jobs, electricians, test sign-offs and invoicing in one app - with CIS, retention and compliance handled properly, and nothing lost between site and office.
14-day free trial · Cancel any time · UK-based support
£10
Per user, per month - flat. Every feature included, no tiers.
CIS
Deductions, verification and retention built into invoicing.
Offline
Sign-offs work with no signal and sync when you're back in range.
UK
UK-built, UK-hosted and supported by real people in Kent.
// Sound familiar?
Wiring is the easy part.
The work is done properly on site. It's everything around it that slips. These are the problems electrical contractors tell us about most.
Where is each job up to?
Containment in, first fix done, waiting on second fix, ready for testing - you find out by phone, and the answer is out of date by lunchtime.
Drawings on the wrong revision
Layouts and RAMS change, and someone always installs from last week's version. You need to know who has read the latest one.
Testing with no evidence trail
Boards, labels and test results are photographed on personal phones, if at all. When something is queried later, the proof is hard to find.
Cards and registrations expiring
ECS/JIB cards, 18th Edition, NICEIC or NAPIT registration and insurance - nobody notices until a site manager turns someone away.
Variations that never get paid
Extra points and circuits agreed on site are forgotten by the time the application goes in.
CIS and retention by hand
Deductions, retention and releases tracked in spreadsheets that only one person understands.
// How DuoApp helps
Built around how electrical contractors work.
Everything below is included in the same £10 per user, from a two-person firm to a hundred-strong contractor.
Every job, area and stage in one view
Break each job down into containment, first fix, second fix, testing and anything else you price for. Track progress by block, floor or plot, and complete dozens of tasks at once. Periodic inspections and maintenance visits can repeat on their own.
Checklists for every stage, with photos of boards, labels and test results plus a signature. If anything is queried later, you can show what was checked, by whom and when.
Mark a layout or RAMS as required reading. DuoApp notifies everyone affected, blocks sign-off until they've opened it, and locks again on every new revision.
Store ECS/JIB cards, 18th Edition and other qualifications, scheme registrations and insurance against each person. DuoApp warns you before anything expires, and can block work for anyone whose documents aren't current.
Fill in an EIC or EICR from a ready-made template, or record a certificate from your scheme software with the PDF uploaded. Only people with verified, in-date qualifications such as 18th Edition or 2391 can sign, and the finished document locks into a branded PDF you can email to the client.
Clock in and out on the phone, optionally checked against the site boundary at that moment. See who's on each site right now, with an offline fire roll if you need one.
Most electrical contractors we speak to run jobs on printed drawings, group chats and spreadsheets. Here's what changes.
Paper, spreadsheets & WhatsApp
DuoApp
TodayPrinted layouts on site - nobody's sure which revision
With DuoAppRequired-to-view drawings that re-lock on every new revision
TodayProgress checked by phone call
With DuoAppLive progress by job, floor and stage
TodayPhotos of boards and labels on personal phones
With DuoAppTest and inspection sign-offs with photos, stored against the job
TodayExtra points agreed on site and forgotten by the application
With DuoAppVariations raised on the phone and sent for sign-off
TodayECS cards and registrations checked at the gate
With DuoAppExpiry warnings before any card runs out
TodayCIS and retention in a spreadsheet one person understands
With DuoAppCIS deductions and retention calculated on every invoice
If your team can use WhatsApp, they can use DuoApp. There's no training day and no IT department needed, and every new team gets a free onboarding session with a real person.
// Getting started
Up and running in days, not months.
No consultants and no setup fee. Every new team gets a free onboarding session with a real person.
Add your jobs
Create your live jobs with areas, stages and prices.
Set your rules once
CIS, retention, required documents and your test checklists.
Invite your electricians
They download the app on iOS or Android and log in. No training day needed.
See every job
Progress, sign-offs, hours and what's ready to claim, all in one place.
// Pricing
One price. Every feature.
No tiers, no per-site fees and no setup charge. Add and remove people as your team changes and you are billed pro-rata.
£10per user / month + VAT
Every feature included - no tiers
Electricians, office staff and subbies at the same rate
Is DuoApp suitable for a small electrical contractor?
Yes. You pay £10 per user, per month, so a team of four costs £40 a month with every feature included. You can add and remove people as your team changes and you're billed pro-rata.
Can DuoApp produce electrical certificates (EIC, EICR, minor works)?
Yes for EICs and EICRs, with Compliance & Certificates: ready-made templates, signed only by people with verified, in-date qualifications, then locked into a branded PDF. There's no minor works template out of the box, but admins can build their own templates. If you prefer to keep your scheme's certification software, record the certificate in DuoApp with the PDF uploaded, so the certificate, the sign-off photos and the invoice sit together.
Does DuoApp handle CIS for electrical subcontractors?
Yes. CIS deductions, verification status, retention and split payments are built into invoicing as standard, not bolted on.
Can my team see drawings on site?
Yes. Drawings, RAMS and other documents are stored against the job and open on any phone or tablet. Mark one as required reading and nobody can sign off until they've opened the latest revision.
Does it connect to my accounts software?
Yes. The optional Accountancy Integration add-on (£10 per month plus VAT) sends approved invoices to Xero as bills, with VAT, CIS and retention on separate lines. QuickBooks Online and Sage are coming soon.
How much does it cost and is there a free trial?
£10 per user, per month plus VAT, with every feature included. There's a 14-day free trial of the full platform, and you can cancel any time from the billing screen.
// Other industries
DuoApp works for other trades too.
The same platform runs teams across construction and the trades.