The Top 10 Causes of Blocked Household Drains
Updated: Oct 9
Knowing what enters your drains can help prevent avoidable blockages. Aquablast Drain Services Ltd clears domestic drainage obstructions and investigates repeat problems across its South West and South Wales service areas.
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Ten common causes
Hair collecting in bathroom wastes.
Soap residue combining with other debris.
Mud and grit entering drains.
Food scraps entering kitchen wastes.
Cooking fats and oils collecting in pipes.
Foreign objects dropped or flushed accidentally.
Wipes and sanitary products.
Excess toilet paper in a single flush.
Roots entering defective underground pipework.
Leaves and surface debris collecting at outdoor gullies.
A blockage is not always the whole problem
A displaced joint, damaged pipe or unsuitable drainage arrangement may also affect flow. Recurring symptoms after cleaning deserve investigation. Removing roots clears an obstruction, but any opening allowing root entry may still require a repair.
Reduce avoidable build-up
Use and clean plughole strainers.
Scrape plates and keep fats out of the sink.
Bin wipes and sanitary products.
Clear accessible grates without lifting heavy chamber covers.
Arrange assessment when the same drain keeps blocking.
Frequently asked questions
Should I keep flushing a blocked toilet?
Stop flushing if the water is rising. More water can cause an overflow. Avoid using other affected fixtures until the problem is assessed.
Does one slow fixture mean the main drain is blocked?
Not necessarily. The restriction may be local to its trap or waste pipe. Several affected fixtures can suggest a downstream problem, but inspection is needed to establish the cause.
When might CCTV inspection be useful?
It can help when blockages recur, the cause is uncertain or a repair needs evidence. Ask whether inspection and a report are included in the agreed work.
Will every blockage be cleared with jetting?
No. The engineer selects a method based on access, pipe condition and the obstruction. Damaged or collapsed pipework may need separate repairs.
How do I book or request a quotation?
Call the appropriate number below or use the contact form. Provide your postcode, symptoms, access details and whether there is an active overflow.
Related services and completed work
About the Aquablast team
Drain Unblocker represents the expert team at Aquablast Drain Services Ltd. The team has decades of drainage experience across the South West and South Wales. Its completed case studies explain recorded problems, methods and results, while customer feedback provides a separate view of the service.
Contact Aquablast Drain Services Ltd
Describe your postcode, affected fixtures, access and whether water is overflowing. The team can discuss the appropriate service and quotation.
