Cost to change rough-in valve in a shower already installed?

Question

I currently have a 'Delta' shower fixture installed and bought a Moen. Moen fixtures are apparently made to work with their rough-ins so I have to change the rough-in valve if I want to use those fixtures. I have a fiber-glass shower that is already installed.

1. Approximately how much will a plumber charge to replace the rough-in valve or is this something I can do myself?

2. Do I need to remove the whole shower to change the rough-in?

3. I also want to change my tub fixtures as well. Do I need to remove the whole tub for that as well?

Answer 1

See if you have an access panel in the wall behind the shower.  If not the plumber will have to make a whole and can put in an access panel at that time.  Without digging into the wall, I would guess around $300.

The other option is to gain access from the front and use a large cover plate for the hole.  They make cover plates to convert a two handle shower to a single handle shower.  Here is a link to one cover plate:

http://www.sortprice.com/search-MQ-Home_...

You can change the tub fixtures without removing the tub.

Answer 2

Around $250, if you have all the parts, and the valve is accessible. If its sealed up in the wall...more $.

If you live in California or New York....triple it.

Answer 3

well it can all be done without having to take down the whole shower. but for prices it all depends. call about 3 different plumbers to get free estimates. try not to call rooters. they are basically for clearing drains. call a  plumbing company