Re: Soil stack woes. Need help and advice.
Chicken Little's squawking aside, I like the fact that the plumber who brought a carpenter along was thinking about the whole project. Repairing the exterior wall may be less expensive than repairing the interior -- especially if you have to remove base cabinets and countertop. Did your other plumbers include restoring the wall to original condition in their quotes?
I don't see anything wrong with attacking the problem from the outside, in fact I have to agree with all the advantages others have cited. Just because one plumber said you shouldn't do that isn't a good reason to reject the idea; he's a plumber not a carpenter. Besides, he's trying to get your business. If he said "sure why not" then you might go with the other guy, and that's not what HE wants. (Any time someone says "I'd never do that" I take their advice with a helping of skepticism. Unless it's "I'd never stick my finger in a light socket with the power on while standing in a salty swimming pool." THAT's good advice.)
Regardless of who you go with, be sure to check with past customers of that/those contractors, and make sure they aren't the plumber's second-cousin's brother-in-law.
You've got an advantage doing this project now during a slow time in the building industry. Most tradesmen will be fairly competitive in their pricing to get the job.
There's an old rule of thumb: the low bidder will cost twice as much and high bidder doesn't want the job.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.