Less admin between callouts
You’re already juggling boiler breakdowns, annual services and full installs. AllSquare keeps invoicing out of the way: describe the visit by voice and you’ve got a tidy invoice with parts and labour ready to send.
A heating engineer’s diary doesn’t care about office hours. One day it’s a £90 service, the next it’s a £3,200 combi swap, then a 9pm no-heat callout. AllSquare flexes around that. Save your common parts — pumps, PCBs, expansion vessels — and your service, breakdown and install rates to your price list, and you can produce a fully itemised invoice in under a minute. Or describe the visit by voice (“Annual service, vented system, 90 minutes”) and the AI builds the invoice from your description. Add your Gas Safe number to your business profile and it appears on every PDF, ready for landlords, letting agents and homeowners.
Why callouts use AllSquare
Itemised service invoices in a minute
Tap the mic, say what you did and what was replaced, and the AI builds the invoice. Review, send, drive on.
Tidy invoicing for landlord work
Save letting agents and landlords as clients with their billing address. Branded PDFs go straight to the right inbox.
Quotes that close install jobs
Send a polished install quote with boiler spec, parts and labour from the kitchen. Convert to invoice the moment it’s signed off.
Built for the way callouts work
The features that matter most for heating engineer invoicing.
Branded PDFs with your details
Add your logo, business address and Gas Safe number once — every invoice and estimate carries them automatically.
Saved price list
Common parts and your service / breakdown / install rates saved once. Build invoices fast without hunting for prices.
Voice-to-invoice
Describe the boiler service, parts replaced and time on site — the AI drafts the invoice in seconds. Edit and send.
Estimate to invoice
Build a multi-line install estimate; convert it to an invoice in one tap when the customer says go.
Typical jobs and pricing
Indicative UK pricing for common heating engineer jobs. Use it as a starting point — your saved rates take precedence.
Annual boiler service
£75–£110Service, flue check, basic clean, certificate.
Landlord CP12 (one boiler, one cooker)
£90–£140Gas safety check, certificate emailed to letting agent.
Diverter valve replacement
£220–£320Part, 2 hours labour, system refill.
Combi boiler swap (like-for-like)
£2,200–£3,4001-day install, 7-year manufacturer warranty registered.
Heating Engineer invoicing FAQs
Common questions from heating engineers using AllSquare.
Yes. Add your Gas Safe registration number to your business profile and it appears automatically on every invoice and estimate. You can also upload a logo to brand the PDF.
Simple, transparent pricing
Start free, upgrade when you need. No hidden fees, cancel anytime.
Free
Everything you need to get started
Free forever
- Invoices2 per month
- Estimates2 per month
- AI Credits10 / month
- ClientsUnlimited
- Price List
- PDF Export
- Cloud Sync
- Custom Branding
AllSquare Pro
Full access, cancel anytime
Unlimited invoices, estimates & AI
- InvoicesUnlimited
- EstimatesUnlimited
- AI Credits100 / month
- ClientsUnlimited
- Price List
- PDF Export
- Cloud Sync
- Custom Branding
- Priority Support
Also for similar trades
Plumber
Wrap the job, hand over an invoice. Emergency callouts, bathroom fits and everything between.
Electrician
Speak the job into an invoice from the van. Works offline, with a saved price list for parts and rates.
Builder
Multi-line quotes for extensions, conversions and refits. Branded PDFs, voice-built invoices.
Handyman
Small jobs add up — speak the invoice in 30 seconds, before you leave the driveway.
Less admin, more callouts
Heating engineers across the UK use AllSquare to handle invoicing in minutes, not hours.