What the service should include
Survey and locating information should define the smallest practical dig area. The work plan must address other buried services, excavation safety and reinstatement.
- Confirm the affected system and access
- Assess hazards and previous treatments
- Explain the proposed method
- Check the result before leaving
Questions, evidence and outcome
Keep photographs, pipe and bedding specifications, test results and final survey evidence where appropriate.
- How was the exact excavation point located?
- Who handles permits, surfaces and spoil?
- How will levels and final flow be checked?
Step-by-step approach
- 1
Describe every symptom
- 2
Disclose products and previous work
- 3
Agree scope and price basis
- 4
Ask how the result will be verified
- 5
Keep footage, reports and repair recommendations
Important safety point
Tell the engineer about every chemical or home treatment already used. Hidden corrosive liquid can put people at risk when a pipe or trap is opened.