What the service should include
The engineer should establish the system layout and likely blockage position before selecting safe access and clearance equipment.
- Confirm the affected system and access
- Assess hazards and previous treatments
- Explain the proposed method
- Check the result before leaving
Questions, evidence and outcome
Normal flow should be demonstrated. If the obstruction recurs or suggests pipe damage, request camera evidence and a clearly separated repair recommendation.
- Is clearance or diagnosis included?
- How will full flow be checked?
- Are call-out and additional equipment charges clear?
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.