The problems I mentioned with the Top Zero are easily eliminated by simply shrinking the cutout a poo, profiling and polishing the edge with a 3/8" round over, then setting the sink into a rabbet just below the end of the edge profile.

Now the top edge is stone all the way around the sink corner edge and the adhesive joint between the side of the cutout and the sink is hidden. I'd be just like an integrated sink in Corian, but in stone and stainless steel.

Hi! @Joseph Corlett, LLC I am looking at doing dekton with a top zero. I am using the top dekton installer for my area so I have covered that base. I was advised by Roberto Colonetti to use a flushmount sink. Do you think the TopZero covers the bases and helps eliminate potential corner cracking and chipping? Or do you think the Mila sink does a better job (they are not zero edge- they are flushmount with a rim)- are the two equal in terms of TRYING to protect the stone from chips/cracks? Also, I was warned that both sink will have an epoxy used and that epoxy will yellow over time (my countertop is dekton rem so it will be color matched light). Do you find that an issue or how can that issue be overcome? Thank you!

I am hesitant to recommend anything contrary to Colonatti. That said, I'l love to know his reasoning. It's a risk to do any 90* inside corner in sintered in my opinion, but I can't see how a flushmount 90* corner is any different than a TZ 90* inside corner. If anything, the adhered TZ would provide more corner support than a flushmount.

If you're feeling lucky, I'd have the TZ mounted and finished in the shop along with any underlayment on the Dekton. If it makes it from the shop to your home without cracking, you should be fine.

Colonatti probably likes the sink edge profile protection the flushmount offers; the TZ kind of does the same. TZs come with a two-part methacrylate adhesive, not an epoxy, which won't yellow. If the sink is installed properly, the adhesive line should be very inconspicuous anyway.

Thank you! @Joseph Corlett, LLC Roberto liked the TZ- just wasn't familiar with it as I don't think they sell it where he is. He was comfortable with it for the same reasons you were- 90 degrees/rounded so you are completely on the same page. Thank you for your reassurance. It is an absolutely beautiful sink and I cant wait to see it with the dekton. My fabricator is giving a year warranty on cracks after install but I don't know about the feeling lucky during transport ;) So glad to hear the epoxy won't yellow. Much appreciated Joseph! You addressed all my concerns

Melanie:

The TZs are manufactured in Turkey and are some of the finest production sinks available. You won't be disappointed.

I started this thread and it's interesting to see how Joseph has come around on these sinks over the years. I've had two for a few years now, installed with quartz counters, and I still love them as much as the day I got them. I'm sure you'll love them too!

Thank you #uscpsycho

I ended up going with a MILA sink bc the TZ finish was sold out. Such a bummer bc I love the TZ zero edge. Glad to hear you are enjoying yours.

I'm wondering how or if the earthquake in Turkey has affected TZ.

Sink started cracking at the edge. Top zero came out to repair, tech refused to finish saying these cannot be installed in Corian and claimed it was incorrectly installed and that it was too soft, & the counter was too thin. he refused to touch it after starting one corner for fear of damaging out counters. We hoped he resolved the issue by putting in supports under the sink to help with vibration from the disposal. He claimed the disposal was causing it to come loose but they never gave us a real concrete straight answer as to why this was coming apart from the countertop.

Now sink is worse (see photos), it’s completely coming apart from the countertop around the perimeter of the entire sink. We asked for the owner Yavuz to meet with our countertop company at the same time to resolve for a permanent fix. It’s been weeks and will only send a tech again and wants to CHARGE US????.

I regret this costly decision as this is not what was sold to us. If this was incorrectly installed all they need to do is let us know while the countertop company is there. But because they are refusing to work with us and come out to see this mess, we can only assume it’s because they know these sinks do this as other reviews show the same issue.

By them not willing to even see this (they are miles within our home), they leave us in a situation where the countop people feel they installed it correctly. It’s a game of finger pointing and someone will be responsible for a new sink and new countertops if that’s the permanent solution.

I'm not an expert but this looks like an installation error to me. It seems like the Corian was covering the top edge of the sink, or maybe ther is caulk on top? But the top edge of the sink should be exposed and at the same level as the top of the Corian. Not covered in any way, it is not an undermount sink and by covering the top edge you are ruining the effect. I don't think you should expect Topzero to resolve this, I would take this up with your counter fabricator.

I've had two Topzero sinks installed in quartz counters for years and they've held up great. Fabricator had to come out at one point to provide extra support from underneath on one of them but they've been great and I love them. Would definitely do it again!

F L:

Your tech is mistaken. There is no reason a TopZero cannot be installed in a solid surface (Corian) countertop.

Fortunately it's a relatively easy fix. I'd build up the bottom of the sink edge and reinstall the sink.

I have extensive experience with TZs. What city and state are you in please?

Ummm too zero sent their guy out he never said the metal was to be flush in line with the counter, the edge is sharp. top zero put a glue on part if it. Their tech claimed corian is too soft yet the owner said it was acceptable. if its an installation issue then why would they not come to neet with our installer to explain??? i asked top zero for an installer, they said they only do work on old sinks being removed . You posted asking peoples experiences yet you've had two good experiences?! I'm sharing my horrible experience and others have had similar. if they felt it was an installation issue why not meet with our installers and help the customer get a goid result with their complicated sink installation - they clear have a product that needs extra attention when instslling why meke it a costly and miserable experience for their customers? then provide a list of trained installers in you area.

???? exactly.

joseph c. — not sure why I cant reply directly- Fort Lauderdale. we went to one of only two corian fabricator’s (that were willing - no one wants corian but I love it). we went with 1/2 ” and they built it up surrounding the sink. if you have any contacts I would appreciatevit but now i want it removed and I’ll go with an undermount if its even doable now. if top zero thrmselves could not fix it ive lost faith.

I first asked about people's experiences with TZ and then I installed them. TZ has training for installers that they are supposed to complete before attempting to install one of these. And the top edge of the sink definitely should remain exposed and flush with the counter surface, as indicated in the attached photos.

FL:

Call Brad at Replace My Sink please.

Thank you Joseph but they are owned by Top Zero here no? I ask because they have a local website/company here that replaces sinks. I will call this company you referred and I appreciate it very much!

And in response to the other guy: NO TOP ZERO WAS THE ONE THAT PUT THIS GLUE OVER THE EDGE OF THE SINK so keep posting photos, it's not what TZ actually did in our kitchen. Also, try getting an actual answer from TZ they change their story. I have save every single email from them prior to buying and if they are not going to help I will have my information documented if I need to go that far.

Top Zero has been horrendous - as I said THEY initially told us they did not install their sinks unless we were removing an old one. When we had the initial issues of cracking we asked for the owner and our countertop installers to meet in person to see if in fact it was the installers issues. At that time, TZ came out with their own tech and he refused to continue to work on Corian. He did a small section, said it was the disposal and put in brackets. Fast forward, it is continuing to crack, and it could very well be an installation issue but UNLESS TOP ZERO CAN STAND HERE WITH OUR INSTALLERS AND TELL THEM, HEY YOU GUYS DID THIS WRONG, we cannot do much. If I call Replace my Sink, they are affiliated with TZ and I should NOT have to pay a dime. Had TZ come out like professionals, tell our installers they were wrong, then they can pay for this mess. I am so livid i would NEVER recommend this to anyone. I contacted both paries PRIOR TO BUYING THIS sink, and no one ever did the right thing. TZ never provided us with the spacers needed for a 1/2" countertop, nor did they come out and just simply state "your installers did this wrong because of a, b, c " this has been hell.

"TOP ZERO WAS THE ONE THAT PUT THIS GLUE OVER THE EDGE OF THE SINK" But it sounds like whoever they are sending is not that competent. Or they were trying to fix an installation problem. I don't think this is standard practice, I've always seen the top edge exposed.

I'd say my TZ is about 1/16 below the surface of the sink. But even in the image you posted, the top edge of the sink is exposed. That is just how it is supposed to be. I have two and I love them.

Did your installer do the training? All the information he needs to do it right should be there. Plus, according to my installer, it's really not that complicated. So maybe your installer isn't skilled enough to execute the installation? In any case, if there is a failure it is due to improper installation and I think expecting TZ to send someone on their own dime to walk your installer through the process is not realistic.

Just have your guy do the training and make it right. Or call someone who has more experience with TZ to fix the mess. Once it is in correctly it won't fail and you will love it. I highly recommend TZ sinks and would do it again in a heartbeat because it looks great and is truly unique. As you know since you wanted it. You're just going to have to get over the hump here, even if it costs you a little extra to get there. Don't snap at people who are trying to help you.

As I said I had a horrible experience and others have too. You asked in your post, if you are so inn love with this sink why post asking peoples experiences?? You sound like you work for them. So be it, enjoy your gems. I hate this sink it has been nothing short of a nightmare. If they are so fing complicated to install then they need to sell these sinks and provide you with one of their installers. I could NOT find anyone on their list that would sell us Corian and install. So. I personally would NEVER use this again in a project for clients. It is not that unique and it scratches terribly. Enjoy your multiple sinks. I will continue to leave reviews on this piece of junk.

As I mentioned before, I started this thread prior to buying it because there was very very little info about these sinks at the time, and I was doing my research. Now I have two TZ and I love them. My experience has been the polar opposite of yours.

When I bought mine, I was warned that I need to have a really good fabricator for this product to work, so I did a lot of due diligence before hiring one. There is no margin for error and it looks like your cutout is not precisely made to fit this sink.

I'm not sure why you are ranting here. If you want help, two people are trying to help you. If you are just here to rant, mission accomplished.

And no, I do not work for TZ. Just because someone likes a product doesn't automatically mean they work for the company who makes it. lol

"Thank you Joseph but they are owned by Top Zero here no?"

Replace My Sink is owned by Bradley Prescott, not TopZero. If they are affiliated, it would be news to me.

F L:

I've installed quite a few Karran 540 sinks, but several years ago, one I installed experienced a delamination issue. It was Karran's problem, but I ate it which is what a reputable fabricator/installer does. Post your cutout dimensions and I'll let you know if one will work; they're great sinks as are properly installed TZs.

I am embarking on a renovation and have had my heart set on TopZero seamless sinks since seeing one last year -- in fact I have planned cabinet sizes around the sizes of certain TopZero models.

Now I'm getting to the countertop decision and getting concerned about choosing the right material and fabricator to avoid this kind of problem. I've only seen these sinks installed in quartz -- and I do not want quartz countertops.

I read from one fabricator that getting these seamless sinks to fit perfectly in stone like quartzite would be incredibly difficult, and rather than getting a perfect fit like I see in quartz, there would likely be gaps and chips and epoxy fills taking away from the look.

So then I thought maybe white Corian would be a no-brainer and easy to get a perfect install (I have lived with Corian for 30 years and even though it's out of fashion, I actually love it as a surface to work on), but then I see this discussion and . . . yikes.

And another thing that's disconcerting is that every person I've talked to along the way -- architects, builders, kitchen designers, countertop fabricators -- says they've never heard of TopZero seamless sinks. I'd been hoping I'd work with somebody who's done it before. This product has been around for a decade. Why is it still so rare? (I'm in the Washington DC area -- a large and pretty wealthy market)

Are any of these concerns legit, or should I just plow forward and pick what I like aesthetically?

@uscpsycho I'd love to see your install.

Take a look at Mila. i got their flushmount instead of top zero i love it!! expensive but love

Re Mila, thanks for the suggestion but I have no interest in zero radius sinks, which is all they make.

funny, i had to google what zero

radius is. Is the issue cleaning? we dont have any problem with keeping it clean. we have their rack at the bottom so that may make a difference. good luck!

"I read from one fabricator that getting these seamless sinks to fit perfectly in stone like quartzite would be incredibly difficult, and rather than getting a perfect fit like I see in quartz, there would likely be gaps and chips and epoxy fills taking away from the look."

That fabricator doesn't know what he's talking about. There are no gaps, chips and epoxy fills no matter the countertop material. I am an authorized TopZero installer and have done several, all to rave reviews.

"So then I thought maybe white Corian would be a no-brainer and easy to get a perfect install."

Correct. The Karran 540, pictured earlier in solid surface, is a fabulous sink without zero radius corners. That sink could be undermounted in engineered stone, however, your fabricator isn't going to be crazy about the idea because he's probably never done it.

"Are any of these concerns legit, or should I just plow forward and pick what I like aesthetically?"

Get what you like please.

@Joseph Corlett, LLC Thanks for the response. I suspected as much, but can't afford a bad decision! Once I saw a seamless sink install, I knew I wanted it (and not just for aesthetic reasons). I just know I need a fabricator with the right experience (I'm in the DC area). Nobody I've spoken to yet has heard of them, let alone installed one, and TopZero hasn't responded to me yet. It seems TopZero is a small company and owns the patent so not a lot of choices. I will try calling them this week.

If I've learned anything through this it's that there are a million fabricators and it's hard to separate the wheat from the chaffe.

H Scott:

You've got to let your fabricator know that you understand that you have to pay for his risk and learning curve. These guys make money pushing the same job out the door over and over. When something different comes along, there goes the schedule and subsequent profits.

Some fabricators see the value in learning something new and will make money on the second TZ they install. Have them call me if they have any questions.

H Scott: do yourself a favor and pass. This has been a complete nightmare. You will be hard pressed to find ANYONE qualified to install these. Three years later and we are still battling with Yavuz (the creator of this sink) and our countertop installers here in Florida. Prior to buying this sink I reached out to the installer/countertop guy and TopZero. I asked can this be done in 1/2 in corian. Yes. I also told the installer please review the installation and contact TopZero prior to installing (as they are right here where I live), then Top Zero tech said these CANNOT be used with 1/2" Corian. Sink was installed incorrectly AND Yavuz is refusing to spell out how it was installed incorrectly therefore we will be taking both to court. This is not worth it. The sink itself? Nice sink, if installed correctly would be great in a perfect world. But there is one big problem it has: NO matter how well it is installed, should you use your disposel and you get bad vibrations or a seed or you chop a lot of hard food, that vibration over time WILL crack the adhesive or glue they use, and our sink was secured with brackets underneath to our cabinets to add stability. It is just the nature of the beast. In an undermount they use sillicone and over time you do need to redo that. In this case SHOULD your installer cut the hole slightly too big (this must be razor exact), that material WILL crack off. You have a metal surface underneath, then a glue/adhesive then your counter material. It is iimpossible for these three surfaces to bond completely and becuase it is not a silicone, it is not flexable. Check the reviews on Home Depot and Amazon, read the negative reviews and weigh your pros and cons. If you don't mind this may happen, then go for it. Sink itself looks fantastic (why I bought it). But Top Zero SHOULD BE TRAINING INSTALLERS AND SENDING THEM OUT TO INSTALL THESE SINKS or at least they should be making an incentive for installers to go and see this in person. For me, they cannot remove this now without damaging more, and an undermount now will not fit, and I am left with removing my counters or putting in a drop in (what I didn't want from the get go). Good Luck!

***Note: I just checked the reviews that were up about a year plus ago, all removed. In fact they no longer show up on Amazon or HomeDepot. That should tell you what you need to hear. Let my nighmare be cautionary. I had seen numerous reviews with the edges cracking and likely they managed to get those reviews removed. I really wish I could go back and do this over without this sink.

I live in beverly hills and with all the construction, money and design places etc, i could not find anyone who sold it let alone knew how to install it. Everyone said they knew mila but not top zero. I felt that was a warning sign to me

First time on Houzz and only joined now because of this conversation. I am almost exactly in the same position @H Scott is now and @Melanie Forster was two years ago. I LOVE the topzero aesthetic but the handwringing is real (we would be installing at least four and possibly more of these sinks.) @H Scott, where are you now in your thought process? @Melanie Forster, I am also considering the Mila true flush mount. How is the silicone between your sink rim and counter holding up? Thank you all in advance for weighing in!

Hi Monica, we love our Mila. Absolutely no problems. I will post a pic when i get home. I will say that you are using a bit more water to get things down the drain bc there isnt an angle in the sink. I dont mind but my husband does - but lets be real, im the one using the sink :)

Mila

Thank you, @Melanie Forster!! Very helpful to see.

Hi @Monica Davisson. I haven't made the decision yet but I did speak with TopZero in Florida and connected with two fabricators in the DC area who have experience installing TopZero seamless flush mount sinks. For the record, TopZero is clearly a small company. I spoke to the office manager Diane who was helpful.

Both fabricators provided photos of installs. One provided a reference (the other installs as subs for a GC so couldn't provide client contact info).

Both were candid and said that it was hard to get right. One showed me the small bar sink they purchased to experiment on, and that their first attempt was not great. It was installed in a Dekton slab and I concurred -- it was not completely even across the edges. I'm surprised they showed it to me but I appreciated their candor. But they said they had sought to learn from the experience, and they did. Their reference was excellent and sent me photos. The other fabricator sent me several photos from jobs that looked nice. I definitely will not install one of these with a fabricator who's never done it before.

Clearly most TopZero installations are in quartz or other engineered surfaces like Dekton or Corian. I asked both fabricators for their candid opinions about installing these sinks in natural stone. Both were confident in their ability to do so, but advised that it's much harder, it's a careful hand-done job, and the more brittle the stone, the more chipping may occur with filler needed. I was told they'd be more confident with a hard granite or a Taj Mahal quartzite but less so with something like a Crystallo quartzite.

This is the look I fell in love with, but it's in quartz. If I do stone, I think it's fair to perhaps be prepared for the acrylic edge to be not quite so perfect.

For what it's worth, I'm pretty sure I'm going with these sinks. I am just still deciding whether to install them in Quartzite or an acrylic solid surface like Corian (I have no interest in quartz or Dekton for my kitchen).

@H Scott, thank you so much for the detailed breakdown of your research and due diligence. I think that you are exactly right--the key to happiness with a Topzero sink is a fabricator who has an exceedingly steady hand and epitomizes precision. The installation is unforgiving and it doesn't help that I have a rather heightened preoccupation with detail. We are using a combination of granite and porcelain in our kitchen, and if I can't find a Topzero fabricator who is experienced and confident with both, I won't venture it at all. Daring to fail is great and all, but not when you're talking about one's forever home.

Here are few more pics if they help this is in quartz

FL:

You are correct, the wrong adhesive was probably used. Your sink should have been installed with Integra Component Bonder tinted to match, not silicone. That adhesive is specifically designed to bond dissimilar materials.

I can resolve your sink issues without replacing your countertops. I'm licensed, insured, and on the other coast of Florida. Email me please: loosedeckcannon@gmail.com

Joseph- No the entire sink was installed incorrectly - we used a countertop installer Englarts and they lied when they said they knew how to install this. I provided the TopZero phone, website and the installation video. I contacted TopZero before purchasing to ensure HALF INCH Corian is acceptable. I can tell you HALF INCH Corian is too thin- and TopZeros tech slipped and said it was too thin. So BOTH TopZero and Englarts will be seeing us in court. This has been a nightmare and in order to fix now I need to replace my counters AND sink.

Joseph- I will contact you.

They did not use silicone it’s cracking if you see. In fact they didn’t seal the sink ANYWHERE underneath. It is not fixable and the cut out was too big. See my photos

They did not use silicone it’s cracking if you see. In fact they didn’t seal the sink ANYWHERE underneath. It is not fixable and the cut out was too big. See my photos.

That is not silicone that was used.

"This has been a nightmare and in order to fix now I need to replace my counters AND sink."

You do not need to replace your countertops, I'm sure. My buddy Doug is on your coast and I've been looking for an excuse to drive over.

Hi @Joseph Corlett, LLC,

I wish your buddy Doug were on my coast. Since he is not, do you know of any top notch Topzero fabricators in Northern California? Thank you!

Monica:

Contact Jim Heaphy please: https://www.toprepair.com

@LanuzaDesigns Can you elaborate on this suggestion that Corian is too thin for TopZero seamless flush mount sink installation? I am potentially looking to do exactly that.

My understanding was that the more difficult installation for these sinks was in natural stone.

"Can you elaborate on this suggestion that Corian is too thin for TopZero seamless flush mount sink installation?"

As a Certified Corian Fabricator and Installer for 30 years and as an authorized TZ installer, I can assure you that the thickness of Corian is irrelevant to its use with a TopZero sink.

You'd simply build up the inside of the edge of the cutout with Corian. In addition, I'd use a tinted Integra Component Bonder between the Corian and the TZ vertical flange which will provide a more flexible and therefore stronger and more permanent and waterproof bond.

Furthermore, I'd strap the TZ in place, thereby removing the job of supporting the sink from the adhesive to the cabinet sides.

Follow these steps and the sink will provide years of maintenence-free service in Corian or any other solid surface.

Or you could install a Karran 540; a spectacular sink, particularly if you don't want any silicone joint or reveal, just a smooth transition from stainless steel to countertop:

Many thanks. I wish you were nearby. Can you recommend any similarly experienced fabricators in the DC area?

Still not a lot of content out there about TopZero sinks, so I thought I'd come back to this old thread to share my experience, in case it helps anybody else researching these sinks.

I didhave two of them installed in stone, specifically quartzite.

I found a fabricator who is experienced with these sinks, and they helped steer me to the types of stones and sinks that posed the least risk for this installation -- specifically, harder crystaline quartzites or granites, with at minimum a "clean" section for the sink that is free of large veins, patches, or stone variation, and sink models that are more traditional radius and not zero-radius.

I love the result.

Here are some photos.