Built for UK boiler installers
The boiler installer app for invoices, estimates & jobs
Combi swaps, system boilers and full heating overhauls — stage payments and invoice on commissioning. Send invoices from the van, take card payments online and file tax direct to HMRC — without juggling spreadsheets.
No credit card required
Invoice
INV-0042
Mrs. R. Morgan
Everything boiler installers need to run the business
fixdd brings invoicing, estimates, jobs, customers and tax into one app — built around the way UK boiler installers actually work.
Invoicing for boiler installers
Send invoices from the van and get paid online by card.
Learn more →Estimates for boiler installers
Polished quotes clients accept online with deposits and stages.
Learn more →Job Management for boiler installers
Track every job from first quote through to final payment.
Learn more →Making Tax Digital for boiler installers
File VAT and Income Tax direct to HMRC under MTD.
Learn more →CRM for boiler installers
Full customer history — invoices, quotes, payments and notes.
Learn more →Invoice on the job — no laptop required
Turn a finished boiler installer job into a professional invoice in under a minute. Save labour rates, reuse common line items and send by email or WhatsApp before you've packed up.
- Online card payments built in
- Email open and read tracking
- Send via WhatsApp and other apps
- Mark as paid manually or automatically
Invoice INV-0089 paid
Mrs. R. Morgan paid £2,400.00 via card
Invoice INV-0090 viewed
Customer opened your invoice 2 min ago
Invoice INV-0085 overdue
Tap to send a payment reminder
Win more work with polished boiler installer quotes
Send estimates clients can accept online with a single tap. Take deposits when they say yes, split bigger jobs into stages, and convert accepted quotes to invoices in two taps.
- Online acceptance with e-signature
- Deposit and staged payments
- Convert accepted quotes to invoices instantly
- Beautiful PDF downloads
Estimate
EST-0023
Making Tax Digital — built in for boiler installers
Submit VAT returns and Income Tax self-assessment straight to HMRC from the same app you invoice with. No spreadsheets, no separate software.
50k+
Invoices created
£100M+
Invoices processed
12,000+
Estimates sent
98%
Would recommend
Loved by UK boiler installers
I used to spend Sunday evenings doing invoices. Now I send them from the van before I've even left the job. fixdd has been a game-changer for me as a boiler installer.
Clients love the online quotes — they just tap accept and pay the deposit. I've won more work since switching to fixdd than I did all last year.
Ready to run your boiler installer business the easy way?
Join thousands of UK boiler installers using fixdd to invoice, quote and get paid. Free to start, no credit card required.
Get started freeNo credit card required