Gas Engineers · WhatsApp Invoicing · TaskDrop
Send professional, HMRC-compliant invoices from WhatsApp in under 60 seconds. Gas Safe number on every invoice automatically. No app, no subscription, free forever.
No card needed · No subscription · 60 seconds to set up · CIS supported
How it works
Gas engineers deal with a wide range of job types — from a quick boiler service to a full system installation — and customers increasingly expect professional documentation for all of them. Landlords and letting agents need written records for compliance. Homeowners want confirmation of what was done to their system.
Tap a button in the menu — Invoice, Quote, or Job Report. Or send a voice note describing the job, or snap a photo of a handwritten job sheet. TaskDrop handles the rest in about 60 seconds.
TaskDrop shows you a preview. Everything correct? Hit send. A professionally branded PDF arrives on your customer's phone immediately.
Customer pays via their banking app using your sort code and account number — money arrives same day. Or by manual bank transfer. Your records update automatically. Done before you've started the van.
Features
TaskDrop generates the invoice before you've packed the van. Add your Gas Safe number once and it appears on every PDF automatically. For boiler installations, itemise the boiler, flue, labour and commissioning on separate lines — customers and landlords get a clear, professional record of the work.
Add your Gas Safe registration number once — it prints on every invoice footer automatically.
Add your Gas Safe registration number once — it prints on every invoice footer automatically. Never type it again.
Itemise boiler, flue, labour and commissioning on separate lines. Clean, professional PDF every time.
Generate job records for landlord annual services — name, address, outcome and engineer details included.
Gas engineers working on commercial projects under a main contractor — CIS deduction calculated automatically. Free.
Automatic payment reminders at 7, 14 and 21 days on unpaid invoices. No awkward chasing required.
Emergency call-out invoiced. Your bank details are on every invoice automatically — customer approves and pays via their banking app, money arrives same day.onds.
Why it matters
Gas Safe registered engineers are working in a compliance-heavy environment. Landlords need records. Letting agents need documentation. Homeowners increasingly want written confirmation of what was done. Invoices and job reports sent on the day of work — not a week later — reduce disputes and build trust.
The call-out and service market rewards speed: the engineer who sends the invoice before leaving the property, and follows up automatically if it's unpaid, gets paid faster and looks more professional to their customers.
Gas engineer call-out rates range from £80–£150 in major cities, with boiler installation day rates typically £250–£400 depending on system complexity. Landlord annual service contracts are a major recurring revenue source. Commercial and new-build gas subcontracting generates significant CIS invoicing volume.
Pricing
No subscription. No £19/month plan. No trial that auto-charges. TaskDrop Pay is free. MTD submissions £80/quarter — cheaper than any accountant.l TaskDrop Pay transactions — both optional. Bank transfers are always free.
Invoicing & TaskDrop Pay — always free. MTD submissions £80/quarter.
No card. No subscription.
Instant bank payment via Open Banking — free forever. Bank transfers always free — your sort code and account number print on every invoice automatically. Full pricing breakdown →
Certification
Add your scheme number to your profile once — it prints automatically in the footer of every invoice, quote, and job report you send. Customers and landlords see it without you typing it each time.
Set it up in your dashboard under Account → Registration & Certification, or during onboarding.
Gas Engineers by city
Dedicated pages for gas engineers in cities across the UK — with local context on rates, subcontracting, and the trades market in your area.
FAQ
Yes. Add your Gas Safe registration number to your profile once and it appears in the footer of every invoice and quote automatically. You never have to type it again.
No — TaskDrop generates invoices and job records. Gas Safe certificates must be issued through Gas Safe Register. TaskDrop handles your invoicing and paperwork, not regulatory certification.
Tap Invoice in the menu on WhatsApp, enter the landlord or letting agent details, describe the work, enter your rate. TaskDrop generates the invoice with your Gas Safe number included automatically.
Yes. Free forever — no subscription, no monthly fee. Your bank details print on every invoice automatically so customers can pay by bank transfer free forever. Every invoice includes bank details — customers pay directly via their banking app, same day. Free.
Guides
No card. No subscription. 60 seconds to set up. Cancel any time from your dashboard — Account tab → Your data rights.