How to reach us
Where we are
Greater London Drainage Ltd
W1C, Westminster, London
08:00 to 20:00
24 hours, 365 days a year
All of Greater London, typically 60 to 90 minutes away
What to tell us when you call
It helps enormously if you can describe which fittings are affected and which are still draining normally. One slow sink is a different job from a toilet, a shower and an outside gully all backing up at once, and knowing which one you have changes what the engineer brings.
Also worth mentioning: whether it gets worse after rain, whether it has happened before, and whether you know where your inspection covers are.