The engineer arrived within the hour. He cleared t...

The engineer arrived within the hour. He cleared the blocked drain very quickly from my house to where it became a shared drain, but the blockage only moved downstream. Within an hour it was backing up again. But because this was a shared drain I had to call Severn Trent out to unblock that! So the job was only half done. I think I would have been better off calling out ST in the first place. They would've charged the same but would've done a better job in the end.