SI
SayInvoice DemoTest Yard, Birmingham B1 1AA
INVOICEDEMO-0042
Bill toDemo Client
VAT£39.00
Total due£234.00
Create invoices in your own name, with your logo, payment terms, tracking and reminders.
No card required
Invoice app for heating engineers
Turn your voice into a heating engineer invoice before the admin follows you home.
Describe the job on your phone. Check a professional heating engineer quote or invoice, then choose how to share it. Manage the rest of your paperwork in one place.
5 documents free. No card required.
New invoice
Try it live.
Tap the mic. Say the job.
Audio isn't saved
Listening. Tap the mic when finished.
Try: “Invoice Sarah £120 labour, £35 parts, plus VAT.”
Building your invoice
Turning your voice note into a professional draft...
Useful for heating engineers jobs
boiler installs•heating repairs•servicing•radiators•parts and labour
Honest by design
You stay in control.
Editable first
SayInvoice prepares a draft. You check every customer, job, price, VAT or CIS setting and term.
Prepared is not sentSharing stays yours
SayInvoice opens an external sharing option with the PDF ready. You complete the final send.
Marked sent is not delivery proofPayment status stays honest
Record an invoice or deposit as paid yourself. SayInvoice does not collect or reconcile payments.
Marked paid is not bank verificationNorthfield Services
accounts@northfieldservices.co.uk
INVOICE
SI-0042
Billed To
Harbour Property Services
18 Market Street, Worcester
boiler installs
£150.00
heating repairs
£45.00
Subtotal£195.00
VAT (20%)£39.00
Total Due
£234.00
Fictional example. VAT shown for illustration; check the treatment for your work.
Less evening admin
Make the quote or invoice while the details are fresh.
Speak the job while it is fresh. SayInvoice creates a professional heating engineers quote or invoice ready to check and send.
- Your logo, bank details and payment terms attached.
- Optional deposit and stage-payment wording you choose.
- WhatsApp or email message prepared for you.
Built for heating engineers
Describe the heating engineers job in your own words.
Include the work, parts and price. Check the draft before making the customer PDF.
Example voice note
“Invoice for radiator replacement, drain down and refill, supply valves, two hours labour, materials included, total 280 pounds.”
Check the real job
Describe the heating job without combining every visit.
Speak the visit, appliance or system, parts and labour. Check which records were supplied separately before sharing the invoice.
The real admin problem
Keep heating work, parts and separate records clear
- Boiler, radiator and control work can involve several visits and different supplied parts.
- The customer, landlord and property address may not match.
- A service-record reference can be mistaken for regulated paperwork if the wording is vague.
Speak, check, share
A review flow for this work
- 1Capture the property, visit, system work, parts and time.
- 2Check totals and keep any gas, commissioning or service paperwork separate.
- 3Preview the customer PDF and complete the chosen share action yourself.
Honest limits
What SayInvoice does not do
- SayInvoice does not create or replace gas safety, commissioning or service certificates.
- It does not diagnose heating systems, verify registration or schedule maintenance visits.
More than invoices
Paperwork, follow-ups and clean records for your accountant.
Keep receipt photos and reviewed costs together. Check VAT and expected CIS figures. When an invoice is overdue, SayInvoice prepares a polite follow-up for you to review and send.
Turn quotes into invoices
Convert accepted work into a separate invoice draft, then check any final changes.
Keep photos, receipts and costs
Review suggested receipt details, link costs to jobs and choose which job photos appear on customer PDFs.
Record payment status and follow up
Mark work sent or paid yourself. Due dates highlight overdue invoices, with private alerts and editable messages for you to send.
Remember customers and sites
Reuse customer details and keep private access notes away from customer PDFs.
See the month clearly
Review invoices, payments, overdue work and practical business insights.
Prepare the accountant pack
Choose a workbook, CSV pack or PDF pack with invoice and checked cost records, matching PDFs and confirmed receipt photos for your accountant to review.
What the pack includes
VAT, expected CIS, deposit, recorded payment, confirmed-cost and attention checks. CSV keeps the workbook sections in separate files. It is prepared for review, not tax filing. CSV packs are available on web/PWA now and in the iPhone update awaiting Apple review.
Choose your export formatUse your own Xero business
Paid members can connect their own Xero organisation on the web or iPhone, choose invoices and checked receipts, then review and export drafts. Optional payment recording needs separate review and confirmation of the amount, date and receiving account. It does not collect money or reconcile your bank. New connections are subject to availability.
How Xero works✓
You stay in control
Misheard something? Fix it before sharing.
Speak naturally, then review a clean, editable draft. Correct any word or number before you open a sharing option.
Simple pricing
Start with 5 free documents.
No card required. Choose a plan only when you are ready to continue.
Invoice Only
£14.99 / month
For straightforward voice invoicing.
- Unlimited invoices
- Remembered customers
- Photos & Costs
- Accountant packs
Most complete
Pro
£18.99 / month
For quotes, invoices and business oversight.
- Unlimited quotes and invoices
- Photos & Costs
- Monthly summaries and business insights
- Invoice and quote follow-up tools
Common questions
How documents, payments and sharing work.
How is this different from gas engineers?
This page focuses on heating work more broadly, including radiators, controls, servicing, repairs, and parts.
Can I split parts and labour?
Yes. Separate lines keep heating repair and install invoices clear.
Can I use this for quotes as well as invoices?
Yes. SayInvoice supports quotes and invoices, so you can quote first and turn accepted work into a final invoice later.
Does SayInvoice send anything before I check it?
No. The app creates a draft first, so you can check the customer, work details, totals, VAT, and payment terms before sending.
Speak the job. Share the PDF. Track what’s owed.
SayInvoice prepares an editable draft for you to check and share yourself. Sent and paid statuses stay your record.
Create your first invoice free5 documents free · No card required