Invoice app for plumbers in Birmingham
Voice note in from the van, branded PDF invoice out in 15 seconds — a plumbers’ invoicing tool that lives entirely in WhatsApp.
£29.99/mo · 7 days free · no card needed
Start Free on WhatsAppA real Birmingham plumber’s voice note:
"Mr Singh, Moseley Birmingham, boiler install, Worcester Bosch twelve hundred, labour six hours."
What plumbers in Birmingham actually have to log on a job
- Gas Safe (if combi/boiler work) — Your Gas Safe number auto-prefixes every invoice; CP12 reminders fire 11 months after issue.
- Unvented G3 work — Cylinder model and discharge route captured as invoice notes; G3 cert PDF attaches to the WhatsApp thread.
- WaterSafe / WIAPS — WRAS-compliant fittings as a separate line item so commercial clients can audit.
- Legionella risk assessment — Store-and-recall template for landlord, HMO and care-home jobs.
- Building Regs Part G / Part H — Building-control sign-off PDF attaches inside the invoice thread.
What plumbers in Birmingham actually deal with
Severn Trent Water across Birmingham and most of the West Midlands
Birmingham Clean Air Zone (CAZ-D) covers the city-centre A4540 ring road — £8 per day for non-compliant vans. Register with the government portal or you’ll get auto-fined.
Birmingham City Council plus the seven West Midlands metropolitan districts. Building Control is delivered via BCC’s own service or approved inspectors.
Edwardian and inter-war semi-detached dominate the suburbs; tower blocks and back-of-pavement terraces still common in inner-city areas; increasingly high-density new-build around the Colmore Business District and Perry Barr.
Serving Moseley, Harborne, Edgbaston, Kings Heath, Solihull and the rest of West Midlands. The CAZ forces many older trade vans into the daily-charge zone or off-site parking. More than one Birmingham spark I know now quotes two prices: "inside the ring road" and "outside it".
Birmingham sits slightly below national average — £45–£75 for most trades’ callouts, with premium for CAZ entry. Holdfort doesn’t set your prices — your rates are yours — but it stops you from losing track of what’s owed, what’s paid, and what’s been expensed along the way. All through WhatsApp. No app to install, no portal to log into.
Questions from Birmingham plumbers
Yes. Set it once; every invoice and CP12 thereafter auto-prefixes the number, registration class and expiry — important for landlord work in Birmingham where letting agents check before paying.
Yes — reply to the WhatsApp with the CP12 PDF and it attaches to the invoice thread. The landlord gets one document with the gas safety record and the invoice.
Voice-note it as a line: "plus eight pounds CAZ day pass" — Holdfort adds the line item. Most Birmingham customers are fine with it, especially business customers who’d pay it anyway.
Yes — developers and letting agents love a fast branded PDF because it gets reviewed and paid inside their usual 28-day cycle. Several Birmingham builders use Holdfort to bill stage payments to developers on Colmore Row refurbs.
If you’re a WIAPS-approved plumber, your approval number prints on the invoice footer. No separate cert upload, no separate portal — it’s just text on the PDF.
Yes — quarterly-ready breakdowns and sole-trader categories. Required for self-employed earners over the MTD threshold from April 2026. See the MTD guide.
£29.99 per month, all in. 7 days free, no card needed to start. Founding-member price locked for life.
Birmingham plumber? Finish the job. Voice note the rest.
7 days free. 30 seconds to set up. Just WhatsApp.
Start Free on WhatsAppHold the fort. We’ve got the paperwork.