Window cleaning invoices without knocking for payment
A round is dozens of small amounts across many streets, and collecting them door to door eats the day. WhizInvoice, built for window cleaning invoicing, emails each customer a clear invoice, shows you who has opened it and chases politely until it is paid.
Where a window round leaks money
This page uses a UK example with VAT at 20%. Window cleaners elsewhere set their own country’s tax in Settings.
Cleaned while they were out
Most round customers are at work when you call. Instead of a note through the letterbox, they get an emailed invoice with your sort code and account number, ready to pay from their banking app.
Every four or eight weeks
Rain moves the day, so most rounds are billed as each street is done. Fixed contracts, like a shopfront every Monday, suit a recurring invoice on Solo.
Front only, front and back, conservatory
Every house has its own price, and the conservatory roof or the frames and sills come on top. Save each as a service so the right amount goes out every time.
Gutters, fascias and soffits
Add on jobs pay well but are easy to price badly from the top of a ladder. Quote them from the website enquiry and the accepted price carries straight through to the invoice.
Small balances that add up
A dozen customers each owing for one clean is a good day’s takings sitting in other people’s accounts. Owed, overdue and paid sit on one screen, and a monthly statement on Solo shows each customer their balance.
Commercial clients and VAT
Shops and offices need a proper VAT invoice before they can reclaim the VAT. With the United Kingdom set, your VAT number, the rate and the VAT total appear on every invoice.
From a quote request to a paid clean
A new customer fills in your form
They give the address, the type of house and whether they want the back done too. It lands in one list, ready to price.
Price it from your round
Pick the saved price for a three bed semi, add the conservatory, and the VAT is calculated for you.
Send from the van
WhizInvoice works on your phone, so the invoice goes before you move on to the next street.
Reminders do the knocking
If a clean is still unpaid on the due date, a polite reminder goes out for you, and the reminders end when the transfer lands.
VAT invoices for window cleaners, in brief
- Standard rate of VAT
- 20%
- Window cleaning
- Standard rated once you are VAT registered
- On a full VAT invoice
- Your VAT number, the customer’s name and address, the tax point and a unique invoice number
- Not VAT registered
- Do not charge VAT
HM Revenue and Customs, VAT guide (VAT Notice 700), section 16 on VAT invoices, checked 18 October 2026.
Example: a month of shopfront and upper floor windows
A café on a high street has its shopfront done weekly and the first floor once a month, with the gutters cleared this time. The cleaning business is VAT registered, so VAT is shown in full.
Example only, with a fictional business and customer. Your invoices use your own details, tax settings and design.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Shopfront glass, inside and out, weekly | 4 | £18.00 | £72.00 |
| First floor windows, water fed pole | 1 | £35.00 | £35.00 |
| Frames and sills wiped | 1 | £12.00 | £12.00 |
| Gutter clearing, front and rear, with vacuum | 1 | £85.00 | £85.00 |
Gutters, pressure washing and a second website
Some window cleaners also run gutter clearing or driveway cleaning under a separate name and website. Connect both and the enquiries meet in one list, or give each name its own logo and invoice numbering with Multi brand.
See how the same tools fit invoicing for pressure washing.
Good to know
Can I invoice round customers who are never home?
Each customer gets their invoice by email with your bank details on it, so they can pay by transfer from wherever they are. You can see who has opened it without knocking on a single door.
Do I have to charge VAT on window cleaning?
Only if you are VAT registered. If you are, window cleaning for homes and businesses alike is charged at the standard rate of 20%, and your VAT number goes on the invoice.
How do I bill a shop I clean every week?
Set up a recurring invoice on Solo and it goes out on its own. A monthly statement then shows the shop anything still owing.
Can I move my round across from a spreadsheet?
Solo imports customers and prices from a CSV file, so your round book, addresses and prices come across without retyping.
What if a customer says the windows were not done?
Attach a photo of the finished windows to the invoice on Solo. The customer sees the job was done, even though they were at work.
Clean the next street while the last one pays
Start free with automatic reminders on every invoice. Plans are priced in US dollars, and paid plans carry a 30 day money back guarantee.
Free plan forever. No card needed to start.