WhatsApp invoicing built for plumbers working across London and Greater London. Send a professional invoice from the customer's hallway — 1% per paid invoice, capped at £50, no subscription.
Wedge
Invoice INV-014 for £350 sent to Dave Smith. ✉️Wedge
Dave Smith paid £350 for INV-014. 💰Only pay when you get paid. 1% per invoice, capped at £50.
WhatsApp invoicing built for plumbers working across London and Greater London. Send a professional invoice from the customer's hallway — 1% per paid invoice, capped at £50, no subscription.
Only pay when you get paid. 1% per invoice, capped at £50.
Wedge
Invoice INV-014 for £350 sent to Dave Smith. ✉️Wedge
Dave Smith paid £350 for INV-014. 💰London plumbing carries the densest CIS subcontract chains in the UK — a single Crossrail-corridor or Zone 1 commercial heating job can keep a heating subcontractor on a multi-month invoice cycle, with 20% labour-only CIS deductions stacking against the main contractor. Domestic work in Kensington, Chelsea, and Notting Hill regularly runs to £10,000+ bathroom refits where the £50 cap on Wedge's 1% fee matters: that same invoice costs £100 on uncapped competitors. Out-of-hours emergency call-outs in central postcodes are common — same-day invoicing from the customer's hallway converts much faster than waiting until Monday.
Text Wedge on WhatsApp with the job details, customer name, and amount.
Message
Wedge creates a professional invoice and emails it to your customer with a payment link.
From: invoices@wedge.uk
Invoice INV-014 from Mike's Tiling
Mike's Tiling
mike@example.com
INV-014
8 Mar 2026
Bill to
Dave Smith
Secure payment powered by Stripe
Your customer pays online. You get a WhatsApp notification when the money lands.
Message
No app to install. Just message Wedge on WhatsApp like you would a mate.
Tell us who to invoice and how much. We figure out the rest.
Clean, branded PDF invoices sent straight to your customer via WhatsApp.
Your customers pay online by card. Money lands in your bank account.
We chase late payers so you don't have to. Polite but persistent.
VAT-registered? We calculate and show VAT on every invoice automatically.
Every invoice, expense and mileage entry stored digitally as it happens. CSV export for FreeAgent, Xero, QuickBooks or Sage.
No app to install. Just message Wedge on WhatsApp like you would a mate.
Tell us who to invoice and how much. We figure out the rest.
Clean, branded PDF invoices sent straight to your customer via WhatsApp.
Your customers pay online by card. Money lands in your bank account.
We chase late payers so you don't have to. Polite but persistent.
VAT-registered? We calculate and show VAT on every invoice automatically.
Every invoice, expense and mileage entry stored digitally as it happens. CSV export for FreeAgent, Xero, QuickBooks or Sage.
It's 9pm on a Sunday and Dave's boiler has packed in. You drive out, replace the diverter valve, and bleed the system. Total: £350 (£180 call-out + £100 labour + £70 parts). Sitting in the van afterwards, you message Wedge: "Invoice Dave Smith £350 for emergency boiler call-out, parts and labour." Wedge generates a clean PDF invoice, breaks out the parts and labour line items, sends it to Dave on WhatsApp with a card payment link, and chases him on day three if he hasn't paid. When Dave pays, £346.50 lands in your bank account — Wedge keeps £3.50. No subscription, no monthly fee, nothing to remember to cancel. If Dave never pays, Wedge never charges you.
Comparing invoicing apps? See Wedge vs TaskDrop for a side-by-side comparison.
No subscription, no setup fee, no card-on-file fee. We only earn when you actually get paid.
Free forever. No monthly fee.
Type any invoice amount. Toggle the payment method to compare.
Bank-transfer invoices remain free — we only charge when the customer pays by card or Open Banking.
Often, yes — if you subcontract on commercial new-builds or larger refurb chains (common across the Crossrail corridor and Zone 1–3 commercial pipelines), CIS applies. Wedge calculates the 20% deduction on labour only and prints it on the invoice automatically alongside your Gas Safe number.
Wedge's 1% fee is capped at £50 per invoice — so the fee on a £10,000 bathroom refit is £50. On a 1%-uncapped competitor the same invoice costs £100. Across a year of larger jobs the saving runs into thousands.
Yes. Add your Gas Safe registration number once during sign-up and it appears on every invoice and quote you send — required for any gas work and reassuring for customers.
Just tell Wedge in plain English: "£180 call-out, £100 labour, £70 for the diverter valve." Our AI breaks it into separate line items on the invoice. You can also add VAT, mark items as zero-rated, or note them as parts-only.
However you charge, Wedge takes it as you describe it. Mention "£90 call-out plus £55/hour for 2.5 hours" and Wedge generates clear line items with the maths done. Your customer sees exactly what they're paying for.
Yes — the WhatsApp message includes a Stripe payment link. Most card payments confirm in seconds. You'll get a WhatsApp notification when the money lands, often before you've packed the van.
Annual service plans work the same way — send the customer their yearly invoice via WhatsApp when the service is due. For ongoing maintenance contracts where you bill monthly, just message Wedge each month.
Yes. If you're VAT-registered, toggle that on at sign-up and Wedge calculates 20% VAT automatically. You can also invoice with reverse-charge VAT for CIS-style B2B work — just mention it when sending.
Join tradespeople across the UK who get paid faster with Wedge.
WedgeWhatsApp invoicing for UK tradespeople. 1% per paid invoice (max £50) — no subscription.
