What the service should include
The pipe is cleaned, surveyed and measured before liner design and installation. Branches and connections need specific planning.
- 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 the specification, curing record where applicable and final CCTV footage showing the liner ends, surface and reopened connections.
- Why is this defect suitable for lining?
- How will dimensions and connections be managed?
- Are pre- and post-installation footage supplied?
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.