Get matched with top addition to existing structure builders in Castro Valley, CA

"Our basement went from a dark storage area to a cozy family room and home office. The remodel was smooth from start to finish. Great communication, thoughtful design ideas, and skilled workmanship throughout."

"The finished work turned out beautifully but the length of time it took the crew to complete the job could have been better. The project manager was great to work with and very responsive however there are a couple of small details that I am waiting for them to resolve."

"I went with Sky Tech Builders on a room addition. I decided to hire this company because they gave me very realistic offer, were available in short time and I also got some recommendations from my friends. The project started soon after we signed a contract and it went very smooth, there were no issues or hidden costs. Sky Tech Builders team was professional, efficient, quick and communication was great. They finished this project ahead of schedule, quality is superb and final product is excellent. I couldn't ask for more! Thank you!"

"Bear Remodeling did an amazing job on my bathroom remodel. The team was nice, courteous and worked hard to get what I wanted. They paid attention to every detail and made sure the design matched my idea. They also did some interior painting and made the whole room look cohesive and stylish. I was so impressed I asked about adding a room to my house and they gave me some great ideas. If you need a contractor for any remodeling project, call Bear Remodeling!"

"The kitchen has become our favorite place in the house. We spend so much more time cooking, entertaining, and just being together as a family. Builders Group took our ideas and turned them into something even better than we imagined. The layout is incredibly functional, the finishes are beautiful, and the craftsmanship really stands out. The entire team was respectful, responsive, and easy to work with from day one. If you’re thinking about remodeling your kitchen, this is definitely the company to trust."

Building Excellence. Creating Lasting Value.\nBuilders Group & Design Inc. is a licensed, full-service construction company specializing in residential and commercial remodeling, new construction, ADUs, additions, kitchens, bathrooms, landscaping, and complete property renovations.\nWe are committed to delivering exceptional craftsmanship, transparent communication, and reliable project management—bringing every client’s vision to life with quality, integrity, and attention to detail.\nYour Vision. Our Expertise. Built to Last.

"My Remodeling Group completely transformed my home! Their team was professional, punctual, and easy to work with. They paid attention to every detail and delivered even better than expected. Communication throughout the project was excellent. Highly recommend them for any remodeling needs!"

"Techline Construction was excellent to work with. Lorena and the crew were very professional from the start. Whenever I had any questions they were there to clarify and quality work was excellent. I will definitely hire them for future projects."

"Adir and his team exceeded all expectations with our ADU project. They helped us refine our design, handled permits efficiently, and executed the work beautifully. Every part of the build shows quality and care. What I appreciated most was their communication. They kept us informed the entire time. It?s rare to find a company this reliable."

"We recently remodeled our bathroom with McCormick, and it was a fantastic experience. Khaled was informative, patient, and genuinely helpful, guiding us through choices for a perfect design. The team’s professionalism showed in their punctuality and quality. Every aspect was done with care, from tile placement to lighting. The transformation is truly impressive; the bathroom now feels open and luxurious. We’re beyond pleased with the result and look forward to more projects with them."