Gurgling sound
 

We had our old bath remodeled and no problems. But recently we started getting a gurgling sound when the toilet is flushed. Before I call a plumber I'd like to have an idea what the problem might be. Thanks!

"There is definitely a blockage or restriction in the line somewhere that is affecting the venting."

http://www.checkthishouse.com/wp-content/uploads/missing-flashing-at-the-plumbing-vent-pipe-sloped-roof-penetration.jpg

How much "remodeling" was done? Were pipes moved or replaced? If the toilet drain pipe was moved or replaced, it may have not been reconnected to the vent pipe. This will cause gurgling and the sound is caused by the drain pipe sucking air out of other fixture traps. Drain piping needs venting to operate properly.