Toilet Unblocking in Portsmouth
24/7 help with blocked toilets in Portsmouth. Tell SouthFlow whether water is rising, overflowing or backing up at other outlets.

Local Drainage Support
Across all of Hampshire,
Surrey & West Sussex
Explain what happens at the toilet
Tell us whether water drains slowly, remains standing or rises when the toilet is used. Avoid repeated flushing if the bowl is not emptying, as this can cause overflow.
If wastewater is overflowing, keep people and pets away and explain where the water is going. Mention whether another toilet or essential facility is available.

Include the symptoms elsewhere in the property
If sinks, another toilet or an outside drainage point are affected, report them together. The restriction may need connected drainage assessed rather than only the first outlet noticed.
If the home is within a managed building, describe who can provide access to the relevant drainage points. Supply the full Portsmouth address and postcode when arranging help.
A recurring blockage needs its history considered
Tell SouthFlow when previous clearance took place, what was found and how quickly the issue returned. Further drain investigation may be useful if symptoms suggest a hidden problem.
SouthFlow provides 24/7 drainage help from its Petersfield base. Attendance arrangements and the work needed depend on the actual restriction and access; ask which charges and work are included.
Your Portsmouth service questions
What should I do if my toilet is blocked?
Avoid flushing again if water is not leaving the bowl. Keep people and pets away from any wastewater overflow. When contacting us, explain whether this is the only usable toilet.
Can the blockage be in the outside drain?
Yes. A restriction further along the drainage route can cause the toilet to back up. Mention other affected toilets, gurgling sinks or outside overflows so the wider pattern is considered.
Why does the toilet keep blocking?
There may be a persistent restriction or an underlying issue further along the drain. Share previous clearance findings and how soon symptoms returned; further investigation may be useful.
Will I need a CCTV survey?
Not every toilet blockage needs a survey. The symptoms, clearance findings and history will help determine whether camera inspection of connected drainage would be useful.
What should I tell you before the visit?
Give the full address, describe the water level and any overflow, and mention products used or items accidentally flushed. Explain any access restrictions and who can authorise the work.
Is help available at night or at weekends?
Yes. SouthFlow provides 24/7 drainage help. Confirm attendance arrangements and charges for your enquiry rather than assuming a particular arrival time.
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 drainage help in Portsmouth
The Hampshire service overview
Toilet Unblocking across Hampshire explains the main service. Explore Areas We Cover for the Hampshire, Surrey and West Sussex service area.
Need drainage help in Portsmouth?
Tell us the address and the problem or planned work.
