(714) 773-2873

Your Project,
Our Promise

At Kobolt Construction, we specialize in Additions, ADUs, and Remodeling services, where your project becomes our promise. With unparalleled precision, we dedicate ourselves to transforming your plans into reality. Trust in our team, where every blueprint is a commitment to excellence.

Integrity

Honesty above all. At KoBolt we are driven by high principles: we will never mislead, and we keep our promises from the first meeting with our clients to the completion of the project.

Hard Work

We're an energetic team dedicated to top-quality projects. Our passionate field staff strive for perfection, while our office team combines expertise and technology to provide precise design and proposals. Hard work is ingrained at every level.

Responsibility

At KoBolt we treat our client’s homes with the highest respect, caution, and cleanliness. We work continuously until we complete the project, never abandoning a job for several days or weeks. We do not leave any stone unturned, ensuring a successful project.

Ready to Transform Your Space? Let's Get Started!

Beginning a construction project is a significant endeavor, but with KoBolt Construction, you're in capable hands. Our focus revolves around you, ensuring your requirements and aspirations are met with unparalleled quality and attention. From initial planning to final touches, we accompany you through every phase, offering thorough constructibility assessments, comprehensive pre-construction planning, and effective construction management. Our dedication to communication, excellence, and client satisfaction distinguishes us as the top choice for construction services in Orange County, California. With over two decades of industry expertise, our team stands prepared to handle any project, guaranteeing a seamless and gratifying journey. Let's turn your construction dreams into reality.

Services We Offer

Our utmost priority lies in ensuring customer satisfaction, achieved through our close collaboration with clients to fully grasp their unique needs and objectives.

Additions

At KoBolt Construction, we understand the challenges of home additions. That’s why we offer detailed planning and hands-on management to streamline your project, minimizing disruptions to your daily life. Let us be your dedicated partner in transforming your space with ease and precision.

ADUs

Allow us to streamline your ADU project. Kobolt Construction takes care of every aspect, ensuring a seamless experience from initial constructability reviews to final completion. With our hands-on approach and unwavering commitment to quality, we guarantee a stress-free process from start to finish.

Remodels

Remodeling is complex and stressful. Let KoBolt Construction in Fullerton, California ease your worries with specialized remodeling services, prioritizing quality, communication, and satisfaction. Achieve a harmonious blend of function and aesthetics tailored to your lifestyle.

Recent Projects

We do a lot of different kinds of construction and renovation work, like building new homes, remodeling kitchens and bathrooms, adding on to homes, and fixing up the outside of homes. Our goal is to provide our clients with personalized solutions that meet their unique needs and budget.

Home Expansion | Anaheim Hills

ADU | Irvine

Master Shower Remodel | Anaheim Hills

Home Addition & Remodel | Long Beach

Master Suite Remodel & Addition | Fullerton

Home Addition | Orange

Years of Experience

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Testimonials from our previous customers

Discover for yourself the satisfaction of our clients and their endorsement of the guiding principles that define our business.

We are huge Kobolt fans and believe your first conversation with Nelson Moreno will make you a fan as well. But if you need further convincing here is what sets Kobolt apart:

Communication. Kobolt shines here and did so for us from day one to the end of the project. Our project was extensive. Nelson was engaged and responsive from the first chat on his website through the many twists and turns of the long process. He was always quick to respond to texts and emails and indulged our inexperienced questions. Each week (for 7 months!) he provided spreadsheet financial and construction updates.

Expertise. Nelson is an engineer by education and has broad professional experience. He hires experienced employees who line up with his integrity commitment and contribute to a culture that makes them a pleasure to have around.

Diplomacy. Construction is so much more than executing plans. There are architects, city officials, sub-contractors and vendors to interact with on the road to completion. Nelson navigated through some rough seas like a seasoned diplomat. We literally marveled at the challenges he led us through.

Addicted to problem solving. This one is a clear illustrator of how a personality predisposes someone to excellence in a profession. Many times we discovered Nelson climbing in and through recesses in our basement or attic along with his employees trying to solve the mysteries of an old house. He truly can't rest until he gets clarity.

Perhaps the best illustration of Kobolt excellence is how we felt the day of final inspection. Almost equal to the joy we felt over the superb work they had done was the sadness that the crew would not be a part of our daily lives any longer. That's the feeling you want at the end of a huge undertaking. We will always be grateful for Nelson Moreno and Kobolt Construction.

Listen - if you're like us, you're looking to find a great and reliable contractor for your project. Lucky for you (and us) - there's Nelson and his team at Kobolt Construction. We sought out estimates from four contractors for the addition and kitchen/bathroom renovation to an older home we had recently purchased. Three of the four contractors handed us one to two pages with vague descriptions and an estimate. Nelson called us and asked detailed questions. He provided a thorough 15 page estimate that read like a book - from foundations to finishings. Nelson takes so much time to fully understand a project and his estimate was spot on. We were recommended to Nelson and his team and feel so lucky to have found him. There were no surprises in costs and the only additions to that original estimate were from unexpected issues (what we thought was a wall but was just a pocket door or an uneven flooring in living room due to the age of the home) or from additions we wanted added to the project (recessed lighting in all rooms and new HVAC system). Nelson is detailed and dedicated in his work. He will always be honest and direct, and provide advice when needed but respect your decisions. His integrity is seamed into the quality of his work - and the results show it. And then there's his team - knowledgeable and kind - these guys are the best. Shout out to Walter, Brandon, Andy and the rest of the team! We got to know these men through the course of their time and they're just the best. Brandon did the amazing tile work in our bathrooms that everyone just raves about. These guys do quality work and are respectful and kind. It just doesn't get any better than Nelson and the team at Kobolt. Our home renovation was such a success - and we're already planning to work with this team on the ADU. Do yourself a favor, and work with Nelson and the Kobolt team. They build beautiful and safe projects with skill and integrity. Absolute men of their crafts and we are just beyond grateful for the stunning home they've created for us.

Your Project,Our Promise