Yeah no, they need to redo this at their expense. How'd they think they'd get away with this without you noticing the vast difference?

P.S. How're they going to fit a square sink in a rounded hole?

Get it fixed with new slabs if necessary. No other option

Oh good GOD !!! I hope you have documentation to support it is the wrong sink. Don't worry about the time finding granite if needed. That sink MUST GO.

I don't think they were trying to get away with it. Somewhere along the line the wrong sink was picked up from the the granite warehouse. my receipt details the square much more expensive sink. they said they will do whatever it takes to make me happy. I cannot fathom having to find 2 more slabs and going through this all over again. my cabinets were installed last week. I worry about damage to them too if they have to rip out all this granite. my sink is much bigger so the hole in the granite will need to be cut bigger and squared. Sigh.....

It sounds like they know what to do. Did they offer you a discount to keep it or did they just say "o crap! Let us fix that?" I think you're going to be fine. If they didn't think it could be done they'd be really really encouraging you to keep the wrong sink.

If your desired sink is bigger than the installed sink, the hole can be recut and the new sink mounted on site. IF the sink cabinet is large enough to provide access. You can't put stone back where it was cut if the installed sink is the bigger one. You'll need new slabs, or keep the sink. With a credit.

No, no, no, no, no. I would not accept that sink. I don't think it's necessarily so ugly ... it's that the mounting and the sink don't match at all. The spot where the rounded sink meets the top and bottom of the granite -- the top and bottom of the big letter "I" -- no. I wouldn't accept it.

What I fear may be a problem: When they finished the work, did you sign off saying, "Yes, this work is done to my satsifaction" ?

The sink I ordered is bigger. Sophie Wheeler, you think they can remove it by going under the sink? how will they deal with the plywood that is holding the sink up? I appreciate everyone's help. I'm so stressed, just as I thought I was seeing the light at the end of the tunnel this happens and I'm getting a cold darn it!

There should be a hell of a lot more than plywood holding up any undermount sink. There should be mechanical fasteners as well. Clips, or a bracket, etc. If not, have them take it all away and use someone else. If the sink is properly mechanically fastened, then those fasteners are removed and it is not a big deal to properly mount your new sink. MIF they have someone with skill.

Here is a pic looking up underneath the sink. They placed plywood across the sink base cabinet. cut a hole in the plywood, dropped the sink in. The frame of the sink holds it on the plywood. The granite was then siliconed on top of the sink. Geez, now I'm really upset.

OSB is Not acceptable as underlayment. Period. Get your money back.

Holy smokes wrong on so many levels ! That's just ridiculous that they would not check everything before installing ! I would be in full out you know what mode.

I'm in full melt down mode right now :(

Try to look at it as you now have the opportunity to have your sink installed properly, as this wrong one apparently was not.

I know I will end up with the correct sink. I'm afraid they will damage the granite and I'll have to start the granite selection and install process all over again :(

I'm trying to stay positive.

I know you are upset, but it seems like it's a good thing they installed the wrong sink or you wouldn't have known what a poor job they had done installing it until sometime in the future when the sink failed. Sometimes things are blessings in disguise. Let them know that is not the proper way to install the sink and if they can't do it correctly, you want your money back.

As Sophie said, as long as your replacement sink is bigger than the existing, there shouldn't be much problem switching them. I'd leave a little radii in the granite corners. Even though it won't match the sink perfectly, square corners in stone can crack starters. The OSB can be Rotozipped out in minutes; very unpleasant, but doable. I'm changing a sink 8 hours from now. It's not that big a deal. I've done this 20 times and have yet to chip a top and I drive a scraper between the sink and stone into the screws holding the clips because they are too rusted to unscrew. The odds of their damaging your granite are very low.

The cabinet is big enough to provide access, although they may have to pop the cabinet front off. Don't panic; it's no big deal either.

Insist they strap the replacement sink please. (2) Sink Straps from Regent Stone Products or (1) Hercules Universal Sink Harness from Braxton Bragg.

This is a one man job; seven hours on a bad day.

Is that double bowl first pictured model your choice? I'd consider this opportunity a chance to go single for more usable volume or a double with a lower divider- Blanco.

or this Kohler with slight radius

Yay Joe! Dan, I was thinking the same thing, but two-bowlers are usually two-bowlers...

Singles and low dividers dominate the sinks i replace.

Now you get to have the difficult conversation where you tell them that they have to fix it and do it properly. Good luck. I hope you haven't paid them.

Thanks Joseph! are you saying there is no need to lift the granite? because I wanted the movement from the slab on the peninsula they had to do one seam in the center of the sink, 1 about 1 ft to the left and 1 1/2 ft to the right. I'm terrified they'll Crack the granite if the have to lift it. I'm going to text your response to them.

Thanks to everyone for the input.

Same thing happened to us - they installed the right type/brand of sink but the wrong size. The one they initially installed was about 10" smaller in width than the one we had agreed on. They were able to come back and re-cut our stone (pietra cardosa) on site and replace the sink, but I got the impression it was a tricky job.

runs_with_sissors6:

I don't know how your sink reinstallation went or is going to go, but I can show you mine from today:

This 18-month-old double bowl stainless has got to go. Note the wide front rail. In these cases, the things you cannot change, like the placement of the faucet hole, dictate where everything else will go, unless you want to look at a repaired faucet hole. The faucet escutcheon has left me about 3/16" of play. I have chosen to not have a deck repair even though it will cost my customers their tip-out drawers.

Here's where we're going. Yes, the left side will be cut wider. These guys missed their sink center, I did not, although I should be paying attention to faucet hole side to side as well as front to back, never mind the sink center.

What the inside of Hell looks like even with a vacuum on the grinder.

I had a great breeze blowing with the front door open and the back slider cracked. I left my tent to find the homeowner had closed the rear door, ruining my wind evacuation and filling the kitchen, dining room, and living room with a nice fine granite powder. She was working at home and didn't want to hear the noise. Sorry lady, this is my jobsite. Go work at the library, please.

Getting there. Cabinet floor is a little dusty.

No dunking this fat boy; the cabinet front has been removed as well as 3/4" of the front sink flange. Straps are on the cabinet walls.

The reveals are nearly perfect; I used the factory template dimensions.

Seven hours for the sink change, another one for plumbing, and the dang disposal plug would not allow me to plug it back in because the switch was bad. This even stumped my wife the electrician when I called her. Just under $900.00, not including the sink.

Wow Joseph, you Rock! Thank you for taking the time to post this. My re-install is scheduled for Wednesday. I was worried about the faucet holes that are already drilled. But I have more to work with than you did. I really appreciate all the shared knowledge on this site :)

Great post of a quality job.

runs_with_sissors6:

If you give me accurate dimensions on the existing and proposed sink and the location of the faucet hole in relation to the sink hole placement in the cabinet, I may be able to tell you if you're going to need a faucet hole repair or not.

Thanks Joseph. the *height* is 20 inches. I'm assuming that includes the 1/2 inche or so frame on either side?

Wowwwwwwww!! on that sink change. Holy.

Ah Joseph.... love seeing these transformations. Oh pleeeeease will you move to Massachusetts?!!

runs_with_sissors6:

You've got the wide front rail, so from what I can tell it looks like you'll be fine, but if you've got tip-out drawers, don't be surprised if you lose them. I'll bet I spent close to an hour putting that blue tape on that top. It's critical for placement success and that starts at the faucet hole.

Your sink will probably dunk into the new cut-out, eliminating the need to tap off the cabinet front. Have your guy call me if he gets stuck or has any questions.

Thanks Joseph, fingers crossed.

As always such an impressive job ! Well done Joe.

Good luck with your sink surgery runs !

Lol, sink surgery. I need general anesthesia ;)

Well the sink I ordered is in! Joseph, I had them round the corners as you suggested.

Adding a pic of the first sink for shock value. lol.

Woohoo, looks like they did a really nice job!

Beautiful. Bet this has been a long 4 days, hasn't it ;0) I'm so glad it turned out well.

Nice job!!

How do they attach the sink now? I can't visualize how they attach clips or straps with a countertop already in place. Just curious in case I ever have to replace an undermount sink. Looks like they did a great job!

Tomorrow all the plumbing and appliances go back. I'm ready for this to be over!

It is sitting on a plywood frame epoxied to the granite and then they used wood supports.

Beautiful! Glad it worked out.

Looking good...the only dislike for me would be the sharp sink corners...harder to clean.

"It is sitting on a plywood frame epoxied to the granite and then they used wood supports."

I don't like the sound of that. Pictures please?

Woohoo!!! Night and Day, beautiful

I am SO thrilled for you! It looks great, and I hope Joseph can give it the stamp of approval ;-)

It looks great. Please do take a picture of the underside of the sink to show how it is supported. Joe has some really good ideas cost effective about sink support.

HUSH, HUSH, HUSH.... I'm glad it has worked out so well.

I will probably never look under the sink again. it was so hard for them to take the ugly one out, I'm pretty sure this one is good. They came back hours later because they forgot the grids of course. The installer a very large man demonstrated that it was not budging. Today my remodel will be complete and I will have a fabulous kitchen even though I rarely cook. lol

Thanks again everyone!