Pulling off the traps and snaking didn't help? I can see a P-trap leak being caused by snaking, it could certainly jar a fitting just enough.

Do other fixtures in the room as well as your other rooms drain well? Any gurgling when you flush the toilet, or if you flush a toilet in another room does the water in the bowl of this toilet shimmer at all?

Properly vented?

All too often I'll see someone stuff a rag or wad up a bit of insulation to plug a drain stub-out during construction instead of using a proper plug. Several times they've disappeared...down the drain. Oops.

Do these sinks have grates over the drain hole? Those can sometimes cause a little vacuum action as water leaves the bowl and that little vacuum can prevent proper draining.

Do they have pop-up drain stoppers? Those can sometimes interfere as well. But not usually.

Do the sinks have an overflow hole?

Sorry for all the Q's. But 75 weeks? Wow.

Hi Mongo. You stay up late!!

The other fixtures work fine. No gurgling toilet, no shimmering when other toilets flushed.

Properly vented? I assume it is. It was before and nothing was moved during the remodel--like replaced like. The vent is on the roof and the plumber said he wasn't going up there to check it.

The sink drains do not have grates--just drain stoppers with lift rods.

The sinks do have overflow holes.

I need to reiterate that the sinks were working prior to being snaked, they just drained slowly. Now, no draining at all.

75 weeks. No one can believe it.

The sinks have separate traps so that tells me two things.

First the center to center distance between the sink drains is greater than 30".

Second, that tells me that one and perhaps both sinks have a horizontal offset on the fixture arm to a common drain line.

That common drain line is at some point in between the sinks and there should be a vent line rising from the tie in point.

That vent may or may not go to the roof, but if not, it probably has a horizontal offset to a stack in the attic space.

If the vent goes through the roof they can run a snake down the vent from the roof.

If the vent has a horizontal offset in the attic space they can install the cleanout in the attic space without cutting your cabinet.

Thanks for your help lazypup.

Plumber came back today and successfully snaked the drain. I'm not sure why it worked today just glad that it did. Plumber said he replaced the entire p-trap sections on both sinks due to the leaks. He said the previous plumber must have installed them incorrectly. Again, don't know exactly what happened. I need my bathroom back and I think he corrected the problem.

As far as the venting: yes, there is a roof vent. Plumber didn't want to get on the roof. We don't have an attic space above the master bath, so he would have needed to cut the cabinet. We elected to wait to install the cleanout downstairs in the kitchen. Not the best location, but we will be opening the walls, so less mess.

Thanks again for taking the time to respond.

Hi Mongo. You stay up late!!

Yeah, I seem to be suffering eternal jet lag these days, I feel like I spend more time on the back of the clock than the front.

So the plumber got things flowing? Outstanding!