Kobolt Construction
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We have the experience and expertise to be the premier source for all of your construction needs. From the foundation to the roof, we can plan and execute your project from the beginning stages of inception to the end stages at close out.

KoBolt is headed by our founder Nelson Moreno, who has a master's degree in civil engineering, is a Certified Construction Manager (CCM), and Qualified SWPPP Developer (QSD/QSP), as well as leading several major projects in the Los Angeles and Orange County area.We have knowledge of piping, electrical, plumbing, framing, and all aspects of building.

Our mission is to impress our clients by providing the highest quality work, done right the first time, and done on schedule. We take a lot of pride in our work and your satisfaction is our ultimate goal. With us as your partner, we can make any project great. We are a small family-owned and operated General Contracting business with an emphasis in Residential Major House Remodels and Additions.
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Reviews (9)
Margaret Barnard
Margaret Barnard
Sep 24, 2019
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Kobolt Construction is a first rate construction company owned and operated by Nelson Moreno. He came highly recommended by a family member and we are very happy we got that referral. We were not completely sure of the possibilities in our master bedroom bath for a remodel, but Nelson offered suggestions that helped us make decisions to bring it all together and drew up plans that we could use to visualize our project. It turned out better than we had hoped. It is beautiful and we couldn't be happier! All his employees are courteous and they made sure everything in the areas were protected along
Hoon Sagong
Hoon Sagong
Jul 13, 2019
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Nelson is our trusted contractor who took care of our home renovation. We wanted to make our new house which we had just purchased into a more modern house with an open concept kitchen/living room. We are busy working parents with no previous experience of going through the home renovation process. We had heard many unsatisfying stories from our friends and families in dealing with contractors. Since we lack knowledge, time and experience, we desperately needed to find an expert who we could trust to satisfy our dreams and needs.
We started this whole process by interviewing a couple of contractors
Lori Shearer
Lori Shearer
Jun 26, 2019
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Nelson and his team renovated a bathroom for us, repaired drywall and installed flooring and we have never had a better experience with anyone in the construction field. To start, Nelson's proposal was like nothing we'd ever seen. It was detailed, transparent and easy to understand. The cost of the job was fair, and we got everything we paid for and more. Nelson responds in a timely manner, kept us updated daily throughout the job, showed up at the jobsite daily, was knowledgeable and highly skilled, had great ideas, listened to our needs and executed them beautifully. His crew was outstanding
Susan Romero
Susan Romero
Dec 09, 2018
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Kobolt Construction is truly the best construction firm you can hire. It is a family business, and they treat their clients like family. (I would like to believe that I am their favorite client ever, but I know they treat everyone special). I originally hired them to do two bathroom remodels and a kitchen remodel. As I saw their work, I kept adding more projects because I knew they were the best company for the job.
Nelson would sit with me every evening to go over the days activities as well as the plans for the next day. Nelson even helped me with other projects out of his scope, such as moving
Jenny M.
Jenny M.
Oct 26, 2018
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The Kobolt team was awesome. They listened to our plans and helped us plan our kitchen project. They really understand the modern color schemes and we are thrilled with our new family gathering place. They finished on time even though we asked them to finish in only 3 weeks. Highly recommend Kobolt.
Drew C.
Drew C.
Oct 08, 2018
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After almost 30 years in our condo, it was time to move on and retire in Mexico. We wanted a complete remodel for the new owners and chose KoBolt Construction.
We received great bids from very credible local contractors, so the final choice was a tough one. koBolt’s bid was competitive and Nelson was very understanding of our project so we chose them.
We were out of the Country for the whole project, but Nelson kept us well informed with phone calls, emails, and pictures throughout the construction process.
KoBolt assigned a large crew and Manuel’s team was able to finish the remodel in
Jaymes Dunsmore
Jaymes Dunsmore
Sep 15, 2018
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For our guest bath remodel, we interviewed three local contractors and Kobolt was the clear choice. Their bid was comparable to the others we received, but their service set them apart. The owner, Nelson, took the time to answer all of our questions about the process, worked to understand our design vision, and even produced complimentary renderings of showing what the finished product would look like (a nice surprise). Throughout the project Nelson and his crew did great work and kept a clean and orderly work site (that's important). Whenever any issues arose during the project (such as a supplier
Robyn Logan
Robyn Logan
Aug 03, 2018
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I found Kobolt Construction via Home Advisor after having a horrible experience with the first contractor I hired and fired. My first contact was with Bree, Nelson’s wife. I told her I required responsiveness throughout this project and if I wouldn’t receive that, tell me now so I can move on. Bree assured me Nelson was very responsive. While I was wary given my past experience, I scheduled a consult with Nelson. From the moment I met Nelson, he was professional and honest. We had a great initial first meeting to discuss the project (an 875 sq. ft. addition to the house). Nelson promptly followed
Glauci Rosen
Glauci Rosen
Jun 07, 2018
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I first met Nelson (the owner) from Kobalt during my research for a contractor through home advisor. I met with a few contractors before I met Nelson and also after my meeting with him. I immediately had a good feeling about him and noticed how much pride and responsibility he takes of his work. He always answers your calls and he is very clear and honest from start to finish. I could just give him 5 stars for his work, however that wouldn’t be fair. He deserves a lot more than that. I had to place a new fence between my house and the neighbors and I learned pretty quickly that it is harder than