Plumbing and maintenance
Drain smells inside the house: tracing the source
What to check
Rarely used fittings lose their trap seal to evaporation, running the tap for a minute restores it and confirms the cause.
Where all traps are wet, suspect a ventilation problem or a failed seal on a WC pan connector.
Where jobs go wrong
Where all traps are wet, suspect a ventilation problem or a failed seal on a WC pan connector.
Where this fits with our work
Common questions
Is the smell dangerous?
Unpleasant and a sign of a fault; it should be traced rather than masked.
Why after heavy rain?
Surcharged drains can push air back through weak seals, a useful clue about where to look.
Rather speak to someone than fill in a form?
Ring during the working day and you will get an answer from the person who would be on site, not a call centre.