I would like to move my existing toilet to were the shower is located and move my shower drain near the old toilet area. I do have a concrete slap foundation. My question, how much does this job cost to do? I would do the entire demo so, knowing nothing about plumbing I would only see cutting the slap and replacing/moving pipes. I know it's not that easy and is more involved, but I was trying to get a ball park figure.. Also, I would ask to prep the shower pan.

I could take pictures for more detail or understanding in what I am trying to do if that would help...

Thanks to anyone who can help me!

Hey Mag, I don't give estimates or "ball park figures" without being on the job site to see for myself what I'm going to run into. Perhaps one of the other experts could take a whack at it.
You're biting off a big chunk, (even for a licensed plumber). Since you haven't furnished any details such as the material your drainage pipes are and, since "
I would only see cutting the slap and replacing/moving pipes". your personal level of plumbing experience and the tools that go with it. I can give you a rough idea of what you're in for .l
The hardest part about installing a bathroom in a "add on remodel job" is the drainage and venting. The floor has to be jackhammered up and the sewer main located. Then after you branch off the main you have to jackhammer the cement up and trench to pick up each fixture. Water will also have to connected and laid in the trenches to supply the fixtures. A bathroom group vent will then have to installed off the lavatory and go through the roof or revent back into a existing vent in the attic. In a two story house this can be a real hassle. Then the basement floor will have to be patched and tiled over to hide the patches.
Most bathroom groups are roughed in like this.
Toilet connects to sewer main . Lavatory connects to toilet drain and runs a vent off the top the stubout tee out the roof or revents back into a dry vent in the attic.. The toilet wet vents through the lavatory vent and the tub/shower connects to the lavatory drain and is wet vented by it. This is a normal rough in and is acceptable both by local and state codes and also The Standard Plumbing Code Book in 90 percent of the country. Check your local codes to make sure you're not in the excluded 10 percent.. The vent off the lavatory may be run out the roof or revented back into a dry vent in the attic or if you're reventing back into a fixtures dry vent you must make your connection at least 6 inches over that fixtures flood rim. Good luck and thank you for rating my answer. Tom

Thanks Much! I would hire someone to do the job. I would never attempt it. Access to the attic is not a problem. To do this to the point of roughing it in... Does it sound like hundreds or thousands of dollars?

Would it be better just line up a couple of plumbers and just get a quote..?

The couple of companies want to do the whole remodel, but I can do tile and add fixtures, and electrical, sheetrock, but Plumbing is not me..

I can only assume the pipe size being use now is standard size, but I have no idea..

Thanks again..

If you tell me the age of your house I could give you a idea of what material your pipes are under the cement. Regards, Tom

The house was build in the late 70's.. 78 or 79...