Sink Unblocking in Alton
Kitchen and bathroom sink unblocking in Alton. SouthFlow assesses slow drainage, standing water and restrictions that keep returning.

Local Drainage Support
Across all of Hampshire,
Surrey & West Sussex
Is it one sink, or a wider drainage issue?
Tell us whether the affected outlet is a kitchen or bathroom sink and how the water behaves. Does it stand in the bowl, eventually empty or back up when something else is used?
Include gurgling, drainage smells and symptoms at other outlets. This helps frame whether the problem appears isolated or may involve connected drainage.

Give the history before another treatment
Mention any products used, attempts to clear the sink and recent work to its waste route. Provide that information before work starts.
When a restriction returns after clearance, the next useful step may be further investigation rather than repeating the same treatment. SouthFlow can discuss accessible drain inspection where the symptoms suggest a problem further along the system.
Quote for a defined sink-unblocking job
SouthFlow covers Alton from its Petersfield base and provides 24/7 drainage help. The business carries £5 million public liability insurance.
Access, the restriction and attendance arrangements affect cost. Confirm whether the quote concerns the sink outlet alone or includes wider clearance or inspection discussed during the enquiry.
Your Alton service questions
Do you clear kitchen sinks and bathroom basins?
Yes. Tell us which outlet is affected and whether it drains slowly, holds water or backs up when another outlet is used.
Why does my sink keep blocking?
Build-up in the waste route or a restriction further downstream may be involved. If the problem returns after clearance, share the history so the connected drainage can be considered.
What if other outlets are backing up too?
Report all affected outlets together. Several symptoms at the same time can indicate a restriction further along a connected drainage route rather than a problem confined to the sink trap.
Should I mention unblockers I have already used?
Yes. Tell us which products were used and whether standing water remains before anyone handles the waste pipe. Also mention trap cleaning or other attempts to clear it.
Does the service include the outside drain?
That depends on where the restriction lies and the work agreed. Ask whether the quote covers only the sink waste or includes connected external drainage and any investigation.
Can you help outside normal hours?
Yes. SouthFlow provides 24/7 drainage help. Explain the symptoms and their impact, then confirm attendance arrangements and charges for your address.
How much does the work cost?
We quote for the work your property needs. The price depends on the problem, access, preparation and attendance arrangements. When requesting a quote, ask what is included and whether VAT or additional investigation charges apply.
Related Alton drainage services
Hampshire-wide service details
Sink Unblocking across Hampshire explains the county-level service. See Areas We Cover for coverage throughout Hampshire, Surrey and West Sussex.
Need drainage help in Alton?
Tell us the address and the problem or planned work.
