I have a horrible experience with this store. I had ordered the vanity top for the master bedroom, after making the multiple trip to find the design and color I like. The salesperson measured the slab and confirmed, it is the right size then marked as “sold”. After a couple of weeks, they called to schedule the measurement and the installation. A guy came for the measurement, finally the installation day was scheduled. The surprise came, just a day before the installation that the size of the granite was smaller, and they need to re-schedule the installation. Having said that, we had to go again to select the granite and repeated the same process. After a couple of visits, found the right size, took a picture and asked the sales person to confirm the size.Then a bigger surprise came when the slab arrived, first of all, that was a completely different piece not the one I had taken picture of. Secondly the vanity was smaller than the actual measurement and the technicians started cutting the drywall, so that they could align the sink holes with the sinks. I asked them to stop it as there was no intention of cutting the drywall. They did not listen and cut it anyway. Then I called the store and spoke with the sales lady and the Project manager and explained there was no plan to cut the drywall and the slab is smaller. By that time the room was a mess, with a big cut on the wall, entire bathroom was filled with dirt and dust. It took me multiple weeks to get over that mess. Had no strength or energy to tolerate that for another couple of months and asked them to fix it.After waiting for several months, they agreed to replace it with the correct size. Repeated the same process all over again, took picture, multiple visits to the store, finally the right size was installed but a different piece not the one that I had selected. The entire process took 8-9 months. Because of their carelessness and unprofessional attitude, I had to deal with so much stress. I would never ever go back.

Awesome service. Really responsive and attentive to details

Exceeded expectations.Where to start? When we received a quote for over $8k to simply replace our existing granite counter with a larger standard piece, using our existing half wall and some table legs we were overwhelmed at the cost. We decided we could do it ourselves for much less. We were partially correct. As with any DIY remodel, the goal posts tend to change as the project progresses. We finally decided on a design and now it was time to find a granite installer. Man, picking out and buying granite/quartzite in Colorado is much like buying a house - once you find the one you like you had better be ready to buy! We traveled to many stone yards looking at gorgeous pieces. Finally settled on one we both liked (a feat all on its own) and picked 3 fabricators from the list of preferred installers. I will admit, Cornerstone was not the first to respond but there was something about their facebook page that felt comfortable. It was important for us to pick someone reputable but local. We wanted quality but not outrageously priced. Like many, they would not put us on the measuring schedule until we secured a downpayment. While hesitant, I went ahead and scheduled. After speaking with Perla on the phone and explaining our unique design, she decided to send Andre out. Andre spent 2.5 hours with us during that session; measuring and discussing our options for the extremely large overhang. Andre suggested a metal fabricator, designed the support, and helped us determine how we needed to install the cleats to support the metal sub frame. After Andre left, I knew I had made the right choice.When the sub-frame was ready, Andre dropped it off. Once we had that installed, a second measurement was completed. One week later - 5 guys, Andre included arrived with the countertop to install. They were polite, clean, took safety precautions and worked diligently until the countertop was installed. The whole process took about 2 hours, including the under-mount sink installation.Cornerstone Granite was professional, followed up with us, and one of the better prices we received. They provided a two hour window and called before arriving. We love our new island - cant wait to work with Cornerstone when we get ready to complete the rest of the kitchen.*Pay no attention to our unfinished floors and cabinet trim. We did our own cabinet install. :)

Cornerstone did a fantastic job from the very beginning. The estimating, field measuring, and installation all went flawlessly. The staff are friendly, knowledgeable, and professional. I love my new soapstone countertops and would hire them again anytime.

Andre and his team were amazing to work with! Ive been trying to find a contractor to help remove and install granite in a very short timeframe, due to water damage in my condo (and the inconvenience of having to relocate with a newborn). They literally helped me within the same day. Their service is impeccable: theyre super friendly, so cost efficient, as well as time efficient. I highly recommend them for your countertop needs!!

Perla was wonderful to work with. She helped us find a quality piece within our budget and was responsive and helpful. Highly recommend.

I would recommend this place for your countertop needs . The front office staff ( Perla, Gaby and others ) were helpful and provided prompt and clear information . The installation crew was on time and the crew ( especially Chuy) worked with dedication to get the waterfall edges to look great . The owner Andre provides excellent customer service and came out himself to fix a few blemishes the next day. Overall I am satisfied !

Perfect service from a local company! Thanks Perla and the team at Cornerstone.

I highly recommend Cornerstone Granite. As a professional property manager, I work with many vendors. Cornerstone provided a perfect solution for my two bathroom counters (marble remnant). They were professional, punctual and precise.

UPDATE: We had some issues with initial installation. I contacted the Owner, as requested after my initial review. He was very responsive, willing to listen to us. He took it upon himself to come over to check out the problem, and replace the granite piece. We had a very fast turn around time, so it didnt hold up our project. Our bathroom remodel looks beautiful with the granite pieces pulling the whole look together. THANK YOU Mr. Powell for standing behind your company and all the work that you do. Customer Service was awesome.

Beautiful and precise workmanship. We bought a house a couple months ago and had it in our budget to do some kitchen renovations so we contacted Cornerstone Granite. After the initial measurement which they contract out, Andre (the owner) noticed some potential issues in the measurements provided to them. He took it upon himself to come out as soon as possible to validate the measurements himself. After validating the measurements, he went over some options and recommendations regarding how to accommodate our apron front farmhouse sink, which was greatly appreciated. We were worried about how the leveling of our cabinets could affect the installation (previous home owners did some sub par work and I didnt want to rip the cabinets up and reseat them if I didnt have to) so he meticulously checked the leveling and assured us that while the leveling might result in one seam being a 32nd of an inch wide instead of a 64th, his installers would be able to accommodate any other leveling issues using shims. That attention to detail and careful workmanship doesnt stop with Andre, though. The installers he sent over were just as hard working and precise. They were able to make the final cuts to accommodate our sink onsite and I honestly cant tell where the machined edges stop and the hand cut edges begin. Also, sure enough that seam Andre mentioned is exactly a 32nd of an inch wide while the other seam is a 64th. Thats a level of intuition born from experience that I hope to have in my line of work someday. We now have a gorgeous soapstone countertop that will last a lifetime. If we need to redo our bathroom counters down the road, Cornerstone Granite will be the only place we call.

We were looking into adding a breakfast bar in our new house, and went to a couple other places, but didn’t really like what they had ( the ones we liked were a bit too much for a small space), so we went to Cornerstone just to also check out what they had there. Perla, was very helpful and patient, helped me and my husband with our questions, etc.During the installation process, Andre the owner, was hands on, from beginning to end. We are very happy with the whole process, and loving our new breakfast bar. Thumbs up, and highly recommend this place! Thank you Cornerstone! Happy customer here! :-)

Before I came to Cornerstone I had been to 3 other places and the prices were too high or they didn’t have anything I liked. I arrived very late in the day at almost closing and Perla was happy to help me with all my questions and all the different pieces I wanted to see. They made everything exactly how I wanted it for a very fair price. This is a great place and I will tell all my family and friends!

Andre and his team cleanly and professionally installed new countertops in our Congress Park renovation. Completely satisfied with the results.

Cornerstone granite was easy to work with and the job was done right! What more can I say??? I would highly recommend them and will def use again if ever needed!!!Abigail was the best to work with, she was very prompt and worked hard on getting all our requests met!!! Installers were professional, and knew what they were doing! The seams are perfect!!! We couldn’t be happier cornerstone! There are so many companies out there but I’m thankful we picked these guys!!!

These guys really care about their customers! Andre, Perla and all the installers absolutely did their best to make sure we were happy. The owner, Andre, has true passion for his business. As a fellow business owner, I have a lot of respect for his hard work. Thank you Cornerstone for meeting our high expectations! We love our new countertops!

Cornerstone Granite was great to deal with. The whole process was easy and very quick. Their prices are much lower than any of the places we shopped at for granite. Would totally recommend them to do any job over the competitors.

Timely, friendly, and efficient. Easy to work with, and they made sure that our cabinets were level and ready for installation.

We used Cornerstone for our granite kitchen counters and to order our cabinets. Gabby was great helping with the layout & design. Coming into the showroom, I learned so much about all the different options and felt I had all of the necessary information to make an informed decision. Having the measurements taken and the actual installation appointments were smooth and we couldn’t be happier with the result.

Cornerstone was great to work with, and especially Abby. She is so knowledgeable and personable, and she knows her stuff! They have access to everything you might need to make your home look fabulous. Abby has great opinions on tiles, and has worked in the business since she was a child. Our granite was perfect, and Abby gave us great, helpful advice. Their estimators and installers also do a great job, and are really friendly- like Carlos.

We had a great experience working with Cornerstone Granite with successful outcome. On budget on time and professional.We had lots of anxieties about having a team of people come and install slabs around our newly finished cabinets. Abigail listened to our concerns and helped us manage them. When the team arrived they also listened and were very receptive to our concerns. No damage was done and the install was easy!

In a word, incredible. We met Cornerstone at the Denver Home and Garden Show 2014 and received bids from these guys as well as a number of other manufacturers. We couldnt find any reviews for Cornerstone (neither positive nor negative), but felt comfortable giving them a shot regardless.We worked primarily with Gabby, but Jennifer was equally as professional and sweet. Not only did their bid come in the lowest, Gabby repeatedly went to great lengths to help us find remnants for our kitchen island to save additional cost. When we couldnt find the perfect remnant, she searched for larger single slabs to fit our entire kitchen, again saving us more money.The finished product looks even better than we imagined it would. Its a work of art. The installers left the kitchen incredibly clean after tearing out the old counter tops. The whole process was easy, smooth, and quick. Highly recommended!

My husband and I recently used Cornerstone Granite for fabrication and installation of our new kitchen countertop. Its beautiful and we couldnt be more pleased! The process from start to finish went smoothly and I highly recommend them.

Overall, a great experience. Abby was great to work with and always called back and followed up as we went through the process. We did have one minor issue and they handled it right away and to our complete satisfaction. Would definitely recommend them.

We had built a custom home a few years ago, and my home builder used this company. I ended up hating the builder but one of the few things that went right was the granite installation. We bought a different property that needed counters so I got some bids that included a bid from Cornerstone. I ended up selecting them again and wasnt disappointed. Quality, price, and customer service were all top notch.

Cornerstone is a great company to work with. As a contractor, I have sent several customer to work with Abby. She is very knowledgeable with helping customers select the right material for their projects. Thank you for all your help.

I went here for counter tops on the recommendation of a remodeling contractor. They are a true one stop shop. They display MANY quartz patterns and have a lot of natural stone also. It turned out that the quartz material that the salesperson helped me to select (within the first 5 minutes!) as a match to my counters and floors was actually on sale and one of their least expensive. They came out and measured, and at that time Carlos gave a lot of good advice on edges, backsplash height, etc. (things I did not even know to think about). Two weeks later there was a very smooth and quick install. The final product is perfect. After hearing horror stories about problems with big box store fabrication and install, Im happy that I went with a truly professional fabricator/installer. I might have been able to save a few bucks somewhere else...will never know!

I went in there looking for countertops for my kitchen and they took there time and showed me several different patterns and materials to help stay within my price range. I really liked and appreciated that. Thank you.

I would not recommend Cornerstone Granite. I found a remnant of stone for a desktop in their lot, and had them cut it to specifications. Despite having drawn out a plan for how it was to be cut and finished, they cut it incorrectly. While they did correct it to the best of their ability, it was still not exactly what I wanted. When it came time to complete the wing of the desktop, I used a remnant from the original. When I dropped the remnant off, they attempted to charge me more than they had quoted me over the phone. After getting this matter solved, I then had to wait at the shop for 40 minutes while the workers were on break to have them receive the piece. After picking up the finished wing, and attempting to install it, it turns out it was 5 inches too long, despite giving them specific dimensions and a drawing of what I wanted. I had to adjust my plans to make the piece fit because I was not going to take the time to go and have it corrected. Bottom line, while the finished desk looks great, the workmanship and customer service is mediocre.

I chose Cornerstone Granite for my bathroom quartz countertops and bathroom sinks. I worked with Abi who was great with helping me narrow down the infinite choices for quartz. She is very knowledgeable about the products and has a good eye for design. The team that fabricated and installed my countertops did an excellent job. Measurements and cut-outs were accurate. They were also very efficient and cleaned up after the installation. I would highly recommend Cornerstone Granite for their knowledge, customer service, quality work and prices.

If you are looking for a small, friendly, professional granite fabrication and installation in Denver, I highly recommend Gabby at Cornerstone Granite. They did a fabulous job of layout on an exotic piece of granite (which we purchased someplace else and had Cornerstone transport to their shop), fabulous fabrication and installation of a big vanity, a bath bench and a little counter top. They were absolutely on time, gave the most reasonable price from 4 bids, and did a high quality job of installation. Wish I had know about them when we had our kitchen done!

We ended up going with another fabricator due to pricing; however, these guys came in close second. Abigail was incredibly responsive and active in trying to help us find the granite we wanted for the lowest price. Just from that experience alone, I would recommend them.

We enjoyed working with Cornerstone Granite, we had multipe quotes and theres was the lowest. Abby was very helpful and the measuring + installation was timely and professional. Would reccomend them.

Small unassuming building on the edge of i25 but full of great people who offer great service. Abby was great the whole way through and the installers were dedicated to serving customers promptly and with great communication.

Excellent service and top notch quality! Entire team is very friendly and knowledgeable, especially Abby, Andre and Bob!

Highly recommend! Our first counter slabs were defective, and Cornerstone made every effort to fix (and ultimately replace) the counters until they were right. Thank you!

Great service, flawless installation, and customer friendly crew

I was shopping for J&K kitchen cabinets for my remodel when I found Cornerstone Granite. They were on J&K Cabinetry’s authorized dealer list so I contacted them for help with my design and to get a bid. That was a stroke of good luck! Gaby used her “state of the art” computer software to help me select and design the kitchen cabinets then Abby took over and guided me through the granite countertop design and stone selection process. They were friendly, knowledgeable and always available during my remodel journey. I asked a million questions and they always took the time to help me find the answers.After the design was complete and the stone and cabinets were ordered, Carlos brought his laser equipment to do a precision measurement of my kitchen and bath areas. He helped by suggesting various ideas, including rounded corners and necessary support for my island countertop overhang. His ideas were insightful and his measurements were exact. What a nice guy!The countertop installation team was confident and professional. They moved the heavy granite into place and drilled the faucet holes on-site after verifying my preferences. They secured the countertops, installed the sinks and did the sealing, caulking, and cleanup. Then they provided care and cleaning suggestions.I could not be happier with the products and service I received from Cornerstone Granite. Their granite prices are very competitive, their cabinet prices are unbeatable, their workmanship was impeccable and they know how to hire caring people who focus on their customers.With Cornerstone Granite’s help, my kitchen and bathrooms now look like those you see on HGTV or in the Houzz picture gallery. I made the right choice! I hope you do too.

Never got back to me.