I'm currently renovating my bathroom and I'm thinking about moving the pipes to center the sink with a future vanity. The pipes include white PVC for wastewater and a couple of copper pipes that are a bit hard to see in the area. How important is it to have the pipes centered, and roughly how much should I expect to pay a plumber to move them? I believe they only need to shift over one stud bay to the right. Here's a link to the image for reference: https://imgur.com/a/1OBJZQX
6 Answers
You don’t have to get the pipes perfectly centered unless there's something specific about your future vanity that might block them. I'd suggest waiting until you choose a vanity before deciding to move the pipes; if it fits well, a plumber can easily adjust the drain to work with the current setup!
It's usually a minimal amount of work, nothing too complex. A plumbing truck roll plus three holes might run you around $500 or so, but that could vary by location. If you're going ahead with it, make sure they use high-quality quarter-turn cutoffs instead of cheaper options. Your future self will thank you when you have to deal with those flex lines later!
Just a heads up, in my experience, the quotes here might be low. I’d expect something closer to $1k depending on your area! It's generally around $300 per pipe section plus extra for parts. Just something to keep in mind!
If you have the wall open, now's the time to do it! You might as well tackle that while you can! ?
Honestly, it's not a huge deal to move those pipes. I'd estimate about $100 per hole, so maybe around $300 for the job, and you might want to double that for a total under $600. Just make sure to ask for an hourly rate instead of per person, to avoid any surprises!
Honestly, I'd recommend DIY-ing it if you're comfortable, since it’s a pretty simple job when you have everything opened up. Plus, you might save a ton of money!

Definitely a good tip! High-quality parts can save you a lot of hassle down the road.