Cornell construction worked on our remodel/addition to our house for about 5 months in 2024/2025. I have nothing but amazing things to say about Sean and his crew. Some of the qualities that stood out to me were their professionalism, communication, thoroughness and thoughtfulness. Sean was great at communicating to me what days they would be working and what projects they'd be working on those days. He gave me timelines for everything and always communicated if things were taking longer than expected. Sean's crew was absolutely fantastic at cleaning up at the end of the day. We were living in the house while they were working on it and I have kids so it was so nice to come home to a construction site that was clean and safe for my kids. The work that Cornell did was TOP notch. Everything in our remodel/addition is exactly how we wanted it. Sean contracted out some of the work to great local businesses who were also extremely professional and great at their jobs. Sean was also great at walking us through parts of the project and giving advice to us on parts of the project we hadn't considered. He had fantastic ideas and really helped us consider everything before making big decisions. I would highly recommend Cornell Construction to anyone looking for a contractor. read more

We first met Sean when we needed to replace our front door and "The Door Stop" in Shingle Springs recommended him, (Cornell Construction). We called, set up an appointment and were pleased to meet Sean, who was prompt, polite and explained what he could do for us. The first door we ordered had arrived cracked from sitting too long in the warehouse, so we had to order another door. Sean soon had the 2nd door in and it looks great! Not long after our rental house had a pipe burst and it totally flooded the entire house. We called Sean and he was so very efficient at working with our Insurance company and taking care of everything. It involved extensive work with Sheetrock, flooring tear out, new bath and kitchen cabinets and new carpet. We were so thankful for Sean's attention to detail and his hard work ethics. When he was finished we had a brand new home! The 3rd time we called on Sean was to update our main bathroom. I wanted to keep the bathtub and it was not only the wrong color, but was badly scarred from non slip decals. He suggested Miracle Method to resurface and paint the bathtub. I was skeptical at first but after researching the procedure, we have a brand new tub. The shower is great and matches the sink faucet, with a new square sink and a quartzite counter top, it is all updated and now I love our little bathroom! Thank you, Sean!! You do such excellent work! Jenny read more

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We needed a complete kitchen remodel from tearing out the old kitchen to rebuilding a new one. We are so happy we chose Cornell Construction. Sean and his crew were so professional and polite and easy to get along with. They showed up on time. Worked full days and completed the project in only 3 weeks. We will definitely use this company again. Thank you Sean for making this so easy! read more

Sean and his team were extremely professional and took care of a pocket door that was no longer "rowing" and looks beautiful!

Sean has been our go-to contractor for almost everything we've needed to be worked on at our house for almost ten years now: from siding, to fence and deck repair, to electrical and flooring. His team has done it all. His work is high quality and honest, and he always gives us options when the highest price option isn't necessarily the best. To boot, Sean always has solid recommendations for other providers when we need them and we rely on him for good advice even when he's not bidding on the job. read more

I have used Sean on a number of different projects and he has always done a great job. We had our garage side door replaced by Sean, and it has a snug fit even years later. Also he has done some electrical work for us: replacing a noisy 220 volt electrical box outside our bedroom wall, adding lights to our kitchen and re-routing an electrical line under a door threshold. Also used him to bring some electrical wiring up to code in our last house before we sold it. I don't think any project, even a small one is too small. Sean is a super nice guy who really works to be sure you are happy with the result. I highly recommend him and his company. read more

I highly recommend Cornell Construction in Placerville CA for their exceptional work. They did an outstanding job replacing a broken window and sliding glass door. Replacing the front porch posts due to dry rot and Sean also added an electric outlet and had a Moen Smart Water Shut-Off Valve installed. The project was completed on time as promised, and their team was consistently punctual. They also took the time to answer all of my questions and ensure I was satisfied with the work. I am very pleased with the results and would definitely use their services again. read more

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My family has used Sean's Cornell Construction on four different home remodels and a variety of smaller jobs. His crews consistently clean-up after themselves each day. The quality of work is outstanding. Prices are fair. Most importantly for me, Sean is an excellent communicator and is extremely reliable. He asks questions to make sure he understands his client's needs. He lets them know what is going on with the project. And he always shows up when he says he will. I highly recommend Sean and Cornell Construction. read more

Quote provided for the job and accepted but never completed after several calls text and emails Basically ghosted us after quote process accepted maybe only wants large jobs. I would not recommend. read more

Cornell Construction was a pleasure to work with. They helped us on a laundry room and bath remodel on a variety of issues and did a great job. Sean is knowledgeable, very skilled and a good communicator. We highly recommend! read more

We hired Sean to do quite a few things around our home. He was very prompt, courteous and knowledgeable. He asked intelligent questions and conversed easily. After seeking at least 3 other bids, we decided on Cornell Construction, because of the confidence we had in our meetings and conversations. And the price was a good one too. Sean and his crew were wonderful. Clean, respectful and nice also. They were a dream crew. We had so many different things done and they were proficient at all. Replacing deck support posts to an upper deck, completely replacing a different deck and a bridge with steps that connects them. They did siding replacement and also replaced 3 exterior doors. They hauled away all the debris and left a very clean site when they were through. And our property isn't very accessible to boot. We will definitely have them back for any other projects we need done. I couldn't have been more happy with our experience with Sean and his crew. read more

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I worked with Shawn to convert a shed into a home office. He and his team were awesome. He was able to complete the project in a timely manner. If I had a question about the project he was easy to get a hold of. He listened to any ideas I had and even provided better alternatives that I had not realized. I will definitely be contacting him for future projects. read more

Excellent job, my mom could not be happier with the ramp this amazing team built for her. It is so fitting with the front of the house it looks like it's always been there. More a fairytale bridge than ramp :). Pricing was reasonable and we discussed materials and cost in advance which made everything clear and run smoothly. Thank you so much. Highly recommend. read more

I had a great experience working with Cornell Construction. They did a fantastic job installing some doors for my office. The staff are professional and very nice. They completed the job in a timely manner and you wouldn't even have know that they had been there. Everything was left neat and tidy. I look forward to working with them again. read more

We had a tree branch hit our house. Legit my worst nightmare. We reached out to a couple of recommended companies who eventually went non responsive. So on Saturday night, I fired up my trusty Yelp app and found Cornell. After sending a message, relatively late in the evening, I was surprised to receive a QUICK response from the owner asking me to call in the morning to schedule an appointment for a quote. My wife handled the call and the appointment. By Sunday night we had the quote (super reasonable). By Monday evening my roof was fixed (including a couple of spots I knew nothing about...they just fixed it and mentioned it casually), our damaged closet was repaired, and the insulation in the attic had been removed and replaced. Literally the only evidence that they had been there was the completed job. No dust, no mess, no construction trash. Even my Dad was impressed ("I went by your house and those guys were hustling, it looks good."). My house is over 30 years old. It's going to need some TLC coming up soon. Cornell is for sure getting my continued business. read more

Sean is AWSOME to work with. Always on time and very professional. He was recommended to me by a plumber who bid on my bathroom remodel. Sean fixed my floor dry rot, installed some electrical outlets , installed a new bathroom fan. Sheet rocked and Relocated a door . I am in heaven looks so good . I will definitely be using him again . He will give you my number if you ask for a reference. read more

Sean EXCEEDS ALL EXPECTATIONS - great work, easy to work with, dependable, professional, competitively priced and the BEST PART, leaves your home so clean that it seems like you never had any construction work done! You just get to enjoy the excellent job that Sean & Diego complete! We are so grateful that Edwards A-1 Appliances (who are also wonderful to use) referred him to us for a mini-remodel of our kitchen. Sean did the work that would have required several different contractors from start to finish - demolition, prep for the installation of granite counters & new backsplash, all the plumbing, new electrical outlets/under counter lights and installation of several appliances. Each day he worked efficiently, safely and even during demolition, kept tons of dust from entering the rest of the house & cleaned up before leaving each day where there was no dust remaining both inside or outside of our house! Unbelievable attention to detail! We will use Sean again and refer him to anyone who wants a pleasurable experience working with a contractor! read more