Overall I had a perfect experience with Gem. My 25 year old concrete floor had a lot of scratches, stains, and a coating that was failing. I got concrete polishing quotes from 3 companies and gem stood out as: 1) By far the cheapest (less than half the price of the other quotes). 2) The best/fastest communication. They got back to me quickly and answered all my questions (some of the other companies forgot to reply to my emails at all until checking in weeks later). I was skeptical about the price, but my neighbors had used Gem so I was able to see the finished work, and it stood up well even years later. The pricing is simple - fixed costs per square foot. The other companies gave me a base price but said it might be higher based on complexity. They came to my home twice - once for a site visit and once to do the actual work. They were on time within the minute. They handled every detail of my floor including tight spaces and areas under the bottom stair with little vertical clearance. And when the work was done there was no dust. They must have wiped every surface, window, and countertop. I highly recommend for both the smooth experience and the high quality finished product! read more

We had such a great experience with gem concrete. They were so communicative over email and text, and answered all of our questions. They even stopped by upon our request before we signed the contract. I got the first floor of my townhome refinished. It already had some concrete, and I wasn't sure if the black stain would come out. They let me know it depended on how the stain was done, but we made a plan together so we could make the best choice depending on what happened. The floor came out so beautifully! The whole process was so clear, and I felt like I got a great deal. I would definitely recommend. read more

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Gem Concrete did a great job with our residential concrete floors. They were super communicative about the process, what to expect, and also helped to double check our quoted price before final payments were made. Gem refused to call the job complete until we were totally satisfied, even patiently showing us samples of what different finishes would look like in our home. Would definitely recommend Gem to anyone in SF looking to polish their concrete floors! read more

I will get to the problem areas: 1. They used an outlet from my backyard and started a small fire. We were lucky to be there to see the smoke and stopped the fire from spreading. They removed the cover/outlet and kept working as if nothing had happened. We need to fix the outlet on our own. 2. The color came out not what I expected. I picked a photo from their website on what I want. They tested on a small patch. It was really hard to determine. So, color is really a roll of dice due to many variables. 3. The most glossy is not that glossy. If you like glossy, pay the extra for the highest gloss possible because even at that level it was a bit rougher than I expected. Overall, they finished in one day. It is definitely better than bare concrete floor. It could've been better. read more

Absolutely perfect work. They responded quickly, were able to squeeze us in within days, showed up on time, were done fast, and did a PERFECT job. Ty so much!! read more

I cannot recommend this business enough. We got bids from several companies and it became quickly clear Gem Concrete was the right choice. They were the only company who had residential pictures on their website, so that added comfort in knowing they know how to balance smaller jobs alongside large, commercial ones. Very responsive. Amy was very kind, patient and on top of comms with us. She sent us clear photos of past work so we could gauge quality, stain and finish. Contract was no nonsense, easy to read and the price was right. Day of the job, Tomasi and Rigo were super efficient, easy to talk to and completed on time. And the floors look GREAT! Check out the before and after. Nice work folx! read more

Gem Concrete Polishing - This is the slab after we ripped out the carpeting and some tiles. - Masonry/Concrete Near Me

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My home flooring needed a "do over". A friend told me to give them a call. We are considering ripping up our floor and polishing the concrete underneath. They called me back within a half an hour (which is a huge plus because most businesses, you have to wait until the next business day or two). They gave me a great thorough explanation of the different options we can do as far as the finish and adding color or not. Gem's scheduling and speed that they got me a proposal was amazing. I don't know about you but I don't have the greatest luck with contractors and communication/timing. Let alone, I don't have that much knowledge about flooring or anything in my home. I highly recommend hiring them for your next project! read more

Gem Concrete Polishing managed to turn our nasty, 50-year-old condo concrete slab into a floor more beautiful and durable than I ever thought I'd own. And they did it under budget and on time. Absolutely AWESOME customer service, Tomasi and his crew, and Amy in the business office, demonstrated consistent professionalism and responsiveness. Plus the pricing was VERY competitive. HIGHLY RECOMMEND!! read more

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We had been searching for a company to complete some concrete work for some time. Not knowing all of the concrete terminology we had a hard time finding someone who would complete exactly what we had been looking to have done and not charge us an incredibly high rate! Then we found Gem Concrete Polishing! Not only were they extremely helpful in explaining the unfamiliar terminology and processes to us, they were so kind and amazing to work with! They were able to complete the job extremely fast and I could not have asked for a better company to work with. They helped us to transform our facility and we have had so many compliments on our brand new floor! We are so grateful for Amy and Tomasi! We definitely recommend them! read more

Gem Concrete Polishing - Our finished concrete. This will be our new indoor skating area! - Masonry/Concrete Near Me

I am over the moon with our finished floor - its beautiful and shiny and so easy to take care of. Much improved compared to our dusty concrete. Everyone that we dealt with during the process was professional and respectful of our home. I opted for a high gloss finish which costs more, but I recommend. If you are on the fence between polishing v epoxy, I highly recommend gem polishing. The floor finish is beautiful - I love the natural flecks that appeared in the concrete as a result of the polishing process. I have no hesitation in recommending this company read more

Gem Concrete Polishing - The beautiful grain that appeared after the polish - Masonry/Concrete Near Me

Gem did an amazing job in our garage and gym area, highly recommend them! The crew was very professional and courteous. Look no further! read more

From start to finish it was great working with GEM. Very quick responses, on time with completing the work and super kind people on site delivering a great quality job. We had them do our garage floor and outcome was just unrealistic. They turned such an ugly surface into a beautiful floor and keep getting compliments from everyone that sees what they achieved. Wishing all the best to this family business. No doubt that they will continue to grow if they keep doing what they are doing!! read more

Gem Concrete Polishing - Garage floor polished! - Masonry/Concrete Near Me

We converted our small detached garage into office space and a music studio. We decided that we wanted the floors to be polished concrete. Our contractor hired Gem Concrete Polishing and we couldn't be happier with the results. They are beautiful and look just as professional as floors we've seen in restaurants and hair salons. We absolutely love the look and Amy and Tomasi were so friendly, informative, professional, and responsive. We have already recommended them to others looking to have polished concrete floors in their living spaces. read more

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Super friendly owners. Great response time and a very good price compared to others. Not just the price, but their work is above the what was expected. Very careful with everything, super clean, and very meticulous with details and corners. Will definitely use again for other future work. Highly recommended. read more

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We could not be happier with the experience we had working with GEM Concrete Polishing! We had them do almost all the floors in our house in staggered projects from a kitchen/dining/living room remodel, a bedroom/bathroom addition and finally our hall bathroom. With every project the customer service and professionalism is second to none. They worked closely with us to ensure we got exactly what we were looking for all while keeping our expectations realistic with the areas of older concrete in our house. The staff who completed the work were amazing. They were personable, efficient and respected our house keeping the disruption to a minimum. These floors are perfect for our busy household. We love the outdoors and they hold up to our kids, dogs and countless social gatherings. We get compliments from so many of our friends and family! read more

We had Tomasi and Amy over to give us a quote to polish and grind our Concrete Countertop on our Outdoor Kitchen and the bid was great and They were able to schedule us perfectly. Tomasi came and did the work and it came Out beautiful. Thanks for making our Outdoor space so pretty read more

These guys are absolutely fantastic! We have a concrete area on the front of our house in San Francisco that used to have all this ugly wooden structures built on it with some tile work. We had ripped out the wooden stuff, but the tile remained and the concrete looked old with small holes where there were bolts that held everything down. I looked and looked and struggled to find a company that would even handle this job. I found GEM on Yelp, reached out to them, Amy responded in maybe 10 minutes, they came out the following week to take a look, and Tomasi and the team came out the following week and did the job - which looks fantastic. It basically looks like the concrete was poured yesterday. They were fast, professional, and the price was great. My only problem is that I don't have any other projects they could work on! I highly, highly, highly recommend them for any concrete needs. read more

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Wow wow wow !!! I can't say enough about my amazing experience with Gem Concrete. The customer service was excellent- the team was fantastic and my floors turned out stunning!!! Super quick and hardworking team with no surprises! The results exceeded my expectations. I would recommend them 100%. Thank you gem Concrete. You are truly the best! read more

WOW WOW WOW!  I hardly ever feel compelled to review but I had to take a beat to review these guys. We really found a GEM!  We bought an office space/home and decided to have a finished garage for the storage area. SO many other companies wouldn't call me back, didn't do residential projects, didn't do small ones etc. Gem answered me within hours, was so transparent with their pricing, answered my (many, probably too many) questions, and held my hand through the whole process. The owners are just the sweetest people ever! They really made sure I understood what the result would be versus epoxy which we had considered.  They were so honest about what the floor would end up like since its old concrete.  They have the most extensive contract which explained everything so there were no surprises.  We are so glad we went this route. We were excited to do something out of the box so we chose the aqua color stain.  Could not be more thrilled with the results. Thank you Gem! read more

Gem Concrete Polishing - The "before" pic of our garage. - Masonry/Concrete Near Me

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My floors are amazing!!! I had a very tight timeline as I was redoing floors in my business. Not only did Gem get it done in time, they were done early! Priced as quoted and the big surprise was how much we love our new floor! Thanks! read more

I'm a realtor and was in the process of selling my own property. I have an extensive vendor list but didn't have a concrete polishing vendor. I did extensive research. Many of the 5 star companies never called me back, would not provide an on site estimate or could not fit me in their schedule. I'm so fortunate to have found Gem Concrete Polishing. They are a new company run by a husband and wife team. Tomasi is the foreman (he has over 10 years experience with another company) his wife Amy runs the operations. They gave me a competitive bid, were able to start in less than a week and the end result was beautiful!! I've already referred them to my neighbors with the same concrete floors and also to other realtors! It is very difficult to find honest contractors who do good work and they are the best! read more

GEM did an amazing job on our front room in our house. They responded promptly, got us scheduled quickly & answered and sent over all the proper information needed. They also were wonderful in offering input and advice on deciding what type of finish to choose. The crew arrived promptly and the result was just flawless, we are so happy with the results of our new floor! Thanks GEM!! read more

For us, straightforward, honest and hard-working contractors who arrive on time and get the job done in the time they originally estimated are hard to come by. You might say you found a true gem of a contractor when you hire these guys, pun intended. We originally wanted our garage finished with epoxy coating and they explained to us why the epoxy won't be as durable and how after a while the moisture in the concrete will cause the epoxy to lift. Also, epoxy was a lot pricier and the concrete polishing was surprisingly budget-friendly for our project, so we went with that instead and we're so glad we did. We really appreciated their honesty and that they wanted us to get the best result rather than trying to upsell us. They got in, got out and did a phenomenal job. We will probably consider concrete polishing for the interior of our home at some point and can't wait to hire them back. Don't hesitate to call these guys for your next project. read more

After using Gem Concrete Polishing to improve the floors of my business, I am convinced that it is the top polishing service in Northern California. They were generous enough to fit my request into their schedule very last minute. They were also extremely easy to communicate with throughout the entire process. The end result was even better than I had anticipated and it was finished quickly too. I am grateful for the work that they did and pleased with the entire experience! read more

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GEM makes your concrete floors sparkle! Amy and Tomasi were communicative, kind and helpful through the whole process. We look forward to using them again! read more

I had been tossing around The idea of finishing our garage for years when I saw Gem's truck while driving one day, and decided to give them a call. The best part of my experience was the education I got when thinking things over and asking about different finishes for the slab. they were so helpful in answering my many questions and I was so impressed I finally decided to move forward and redo the garage! The flooring was the most affordable part of the project to my happy surprise, and we have been really happy with it. if I had another garage I would hire them again lol. definitely recommend them. read more

Amy & Tomasi did a great job on my commercial space. Super smooth and polished look, which I'm sure will wear much better than an epoxy coat. Pricing was also the most competitive I could find. Look no further. read more

Gem Concrete Polishing - Masonry/Concrete Near Me

Amy was very responsive and adaptable to my time and the work that Tomassi did was amazing. Everyone marveled at the work. Also their price is the best for my garage conversion. read more

Gem Concrete Polishing - an empty room - Masonry/Concrete Near Me

Great experience! As a client and contractor it's hard to find honest reliable companies and Gem checks all the boxes. Give them a shot you will not be dissapointed. read more

I have known the owners of Gem for quite some time, and was thrilled when they started their own business after having worked here for a different company for so long. Have had experience now with at least 50 contractor companies over my lifetime, I am certain they are the best experience you will ever have. It is hard to trust people who are often coming into your home or place of business and feel at ease. They will demystify the process of concrete polishing for you and make sure that look you desire is what is achieved. I am someone who does my research as you are too if you are reading this review and I can tell you to look no further. Don't hesitate to hire these gems. read more

Gem Concrete Polishing - Masonry/Concrete Near Me

We wanted to refinish our severely cracked and somewhat offset 70 year old garage floor. We were told by an epoxy floor finisher that he would not do the job because it would just crack again. Decided to go with polishing. I don't know how many contractors I contacted, but Tomasi was the only one to come out and look at the job. He said he could squeeze me in between a couple of larger jobs and that it would only take a day. (I only had 360 sq. ft.). He and his two workers did a fantastic job! It turned out better than expected. The aggregate in some areas was exposed and looks beautiful. If the floor cracks again (house is on clay soil) I can just fill the cracks with some of the same mix that they used. It matches very nicely. Amy was very easy to contact, either by phone or text. Love the new floor! read more

GEM Concrete Polishing gets 5 stars. I'd be happy to give them more! From my inquiry online to the finished product, my experience was excellent. I contacted GEM on Sunday April 24 and my garage floors were complete on April 30. They found a way to fit me into their busy schedule. They are very accommodating and pleasant to work with. Amy is a great communicator and on top of the paperwork and scheduling. Tomasi and his crew are neat, efficient, and nice to work with. They transformed my garage in 4.5 hours! I highly recommend. read more

Fantastic team. I don't usually leave reviews but had a fantastic experience with Gem. Their team were friendly, prompt, and professional all the way from my initial phone call, through the estimate visit, all the way through the day of the job. Scheduling & invoicing was quick & easy. Tomasi & his team removed old vinyl & polished our floors in a small warehouse. They were flexible to book my job in one long day so I could get back to work sooner. The price was fair & the results look fantastic - our old floors look great. They are a small company & maybe formed somewhat recently, but they clearly know what they are doing. 5 stars! read more

The team at Gem are great. Quick responses, honest and good communication. They are a family business and it's obvious they care deeply about their work and reputation. I'd definitely recommend them if you are looking for concrete polishing. read more

Amy's attention to detail and great communication before the job, then you get Tomasis and his crew come in and turn your concrete into a beautiful floor! If you've decided to have polished concrete don't hesitate to hire this business! read more

These guys are the ones! Stop your scroll & hire them asap! The best communication I've had with a contractor, was on time, the job was done in the time frame they said & the finished product was outstanding! I would definitely hire them again! read more

Great contractor! Quality work performed in a safe and professional manner. The crew protected existing/surrounding surfaces, left the job site spotless, and all work was started on-time and completed on-budget. What more could you ask for? Five stars. read more

Contracted Gem after receiving a competitive quote to polish my kitchen. They scheduled the work a lot sooner than expected, very appreciated! They met expectations for the work, along with a professional clean-up. Would call them first on any future concrete work :) read more

Awesome, professional crew willing to take on residential jobs!