Invoice clients for septic tank emptying, sewage treatment plant servicing, and drain field inspections. Professional invoices from Tidybill.
A septic service invoice covers work emptying, inspecting, and maintaining septic tanks, cesspit pits, and sewage treatment plants serving properties not connected to mains drainage. Septic service providers empty tanks using vacuum tanker vehicles, inspect tank condition and inlet/outlet baffles, service mechanical components on sewage treatment plants, and provide compliance documentation for General Binding Rules (GBR) permit requirements. Septic tank emptying frequency depends on household size and usage, typically annually for a standard three-bedroom property. Waste generated from septic work is classified as controlled waste and must be disposed of at a licensed facility. The waste carrier registration number must appear on invoices that include waste transport.
| Service | Typical Rate | Unit |
|---|---|---|
| Septic tank emptying (standard 3,600L) | 200 | empty |
| Cesspit emptying (per 1,000L) | 80 | 1000L |
| Sewage treatment plant service | 150 | service |
| Drain field inspection | 120 | inspection |
| CCTV drain survey | 250 | survey |
| Annual maintenance contract | 350 | year |
Invoice immediately after the service visit. Include the waste manifest reference number and your Waste Carrier Registration number on all invoices for compliance. A condition report attached to the invoice adds value for clients who need compliance records (particularly for property sales). Net 14 or immediate payment for routine emptying.