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Unblocking drains — Plumber
Describe which sinks, toilets or drains are affected and whether the issue is local or appears at several points. Tell the provider about products already used and recurring problems so the blockage can be assessed without assuming the cause.
Service scope
Drain unblocking investigates and clears an obstruction in an agreed waste or drainage section. Clearing a blockage is different from repairing a collapsed pipe, investigating recurring drainage faults or working on a public sewer outside the customer’s responsibility.
What is normally included
- Assessment of slow or blocked drainage
- Appropriate clearing of an accessible obstruction
- Recommendation of further inspection for recurring problems
What is not included
- Automatic pipe excavation or replacement
- Entering confined drainage spaces without specialist arrangements
Typical tasks
- Identify the affected drainage section
- Assess accessible inspection points
- Select a suitable clearing approach
- Check drainage after the agreed clearance
- Recommend further investigation if symptoms persist or recur
What to include in your brief
- Affected fixtures or outside drains
- Extent and timing of the backup
- Access-point information
- Previous blockages or repairs
- Chemicals or tools already used
Choosing the right professional
Ask whether the quoted service covers clearance only or diagnosis of recurring faults, and how inaccessible or damaged pipes are handled. Do not assume a successful flow test proves that the entire drainage system is undamaged.
Important considerations
- Wastewater and used drain chemicals can create exposure hazards
- A blockage can be a symptom of a damaged pipe
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