If they cut the drywall, wouldn't that make the gap bigger? It needs to be filled in. It's the side wall.

The notch is an "oops!" If you paid for templated granite, you shouldn't even have that 1/4" gap on the side. My side gap is 1/16", if that. I think spec allows 1/4" gap on the back of a counter, not the side. Joe should know.

If a single corner or an opening isn't square, the walls may prevent the top from sliding into position, hence the comment about cutting drywall.

The granite is snug (and perfect) to the wall at the front edge. The other side has a very small gap that a backsplash will cover. My question is will a 3/8" depth moasic cover this after I get the mastic on? I notified my granite fabricator and already sent pictures. Plan B would be to have them put an Ogee edge on the granite backsplash that is not installed to soften the edge and install at their expense. That is only if I my chosen backsplash doesn't work. Does this sound doable, or will the corners not work? I've never seen that done on three sides. Only the back.

It's really on the granite fabricator/installer to check with the client before install to make sure the granite is close enough to the wall for whatever backsplash material is going to be used will cover. But that being said... many a time I have gone to a job to tile a back-splash after the slab guys have been there and I am sometimes left with dealing with gaps like the one you have. Mostly it's not the end of the world and you deal with it.

You won't gain much thickness from the thinset for setting a mosaic directly on the wall. Usually around less than a 1/16" or so. I don't know what type of mosaic you are using but typically I will use a 1/4"x1/4" v-notch trowel for this application.

If you have the tile at your disposal, set it on the counter against the wall and see how much of a gap there is. If it is around a 1/16" gap (figuring for the additional thickness of the thinset) or so which sounds like it might work out to be(if the gap measures 1/2"... then you could tile it. Leave yourself a grout joint at the bottom when you are setting your mosaic, grout everything but the bottom joint, caulk the bottom joint with the matching caulking the color of your grout. The caulking should cover any variance.

Thank you, thank you. It will be close, but I think it will work. This is the largest part of the gap. A smidge under 1/2". My GC said to fill the gap with foam before setting the tile to hold it in place and to keep material from falling in the gap. (I just measured - it's pretty darn close to 1/16".) The only problem area is from the notched area to the back wall. Looks like the tile will be just about flush with the edge after installation, but, like you said, caulk will fill that small gap. Fingers crossed.

I would be,very upset about the way they installed that granite. I would insist that they come out and install a new piece of granite at their cost.

I agree with K Sissy. I could have gotten a prefab granite top for my 36" vanity and paid half of what I paid to have it templated by a fabricator. This is not professional work.

Fabricator. called. They tried to tell me it was a relief cut. Walls are not that out of whack. My new vanity slid right in and fit perfectly. They offered to come out and slide the countertop a little to the left. This would involve cutting the wall at the front edge, then calking about 1/8th on the right side. They tell me they can do this without uninstalling my plumbing. I agree this is beyond sloppy. My brother in law used the same company with the same type of set up. His top is snug on both sides and he has no backsplash at all on the sides. It looks great. They made no monetary offer - just the offer to slide it. The way we left it is I am going to attempt to install my backsplash and if it works, it works. If not, then they will attempt to move it. As long as I can get a backsplash up I don't really care what is under it. But I won't be going there again nor will I recommend them.

Can you go up to another level of management....to raise a big stink at the company? Just because they won't help you at this level doesn't mean you can't get help. Go to the BBB's website in your area. You can post a complaint, etc. I think there is also a website called epinions.com. Don't just let them get away with this. I would make them come and get their top and give you the $ back and start over. Make sure that they know that you are unhappy, and that you are not going to accept this lightly. You can do this, and end up with something you love. You deserve that. Good luck! Let us know how it goes, and the name of the company that is trying to do this to you. I hate it when companies don't stand behind their products or their work.

I agree with Sissy. Insist on speaking to the owner of the company and asking him/her to come out to see what a poor job was done. Let them know if they don't you'll be posting on Yelp, epinions, FB, etc about what a poor job. They owe you and for you to just accept it means they figure they can get away with it.

Since you have the photo I would also suggest that you get an email address for the owner and send the photo of the problem. That way it will reinforce your demand that the owner come see it in person and he/she will know that it is a legitimate complaint that needs to be addressed. That's what I did when I had a much smaller issue with a granite installation and, once they saw the picture, they made arrangements to come out and make it right.

I'd also send your BIL's photo.

Edit: Well, not his photo. His counter. :D

They want to try shifting the granite to the left, which I feel imay create a bigger problem. Then I will have a small gap on the right side that will need to be caulked at the front edge. Right now, front of granite is snug and perfect on both sides. This gap is only 3.5 " long and tapers to a snug fit as it comes forward.. The right side is an even 1/8" on the entire edge. I did measure my wall to see how square it is. It's 1/8 inch smaller across the back. My faucet is dead on center and it will be shifted 1/8" of center if they move it.. That may bug me more. I plan on posting the picture on Yelp when I write a review. As we left it - I will try to install backsplash and sidesplash and if it doesn't cover, I will contact them again for resolution. I planned on doing a three sided mosaic from the get go. My glass moasic is 3/8" thick. That leaves a little less than 1/8" before thinset. Anyone know how thick thinset is? Will it push things forward 1/8". The gap is just short of 1/2". I do appreciate the encouragement to pursue this. I will definitely address the unprofessional job. (Here's a picture of the entire side. Cell phone makes it look so far away, but you can see how nice the front edge is)

If you install the backsplash and caulk, etc, the company may have a harder time removing it, and you may have handed them an excuse as to why they can't take it out. I would wait and try to resolve the countertop issue with them before I did anything else at all.