Invoice clients for civil engineering design, structural assessments, and site supervision. Professional invoices from Tidybill.
A civil engineer invoice covers design, analysis, reporting, and supervision services for civil infrastructure including roads, drainage, earthworks, structures, flood defences, and utilities. Civil engineers work on planning and development projects, infrastructure design, flood risk assessment, geotechnical investigations, traffic assessments, and construction supervision. Chartered Civil Engineers (MICE, CEng) command premium rates. Fee models include fixed project fees for defined deliverables and time-based billing for supervision and advisory work. Civil engineering projects often involve sub-consultants (geotechnical, environmental, transport) whose costs are passed through. Professional indemnity insurance is mandatory.
| Service | Typical Rate | Unit |
|---|---|---|
| Civil engineering (day rate) | 700 | day |
| Drainage design and report | 3000 | project |
| Flood risk assessment Level 2 | 2500 | report |
| Transport assessment | 4000 | report |
| Construction supervision (per week) | 1500 | week |
| Geotechnical investigation supervision | 600 | day |
Fixed-price projects at defined milestones (preliminary, detailed, construction issue). Time-based work invoiced monthly with a timesheet. Sub-consultant costs as reimbursable expenses. Net 30 for planning and development clients.