Strength you can trust.Craft you can see.

5K Builder is a licensed California general contracting company specializing in residential and commercial remodeling, renovations, and new construction throughout Northern California.

Built on the principles of hard work, integrity, and exceptional craftsmanship, 5K Builder takes pride in delivering quality construction services with a personal, hands-on approach.

We believe every successful project begins with trust, clear communication, and attention to detail. Whether it’s a kitchen or bathroom remodel, custom carpentry, a home addition, a complete renovation, or a new construction project, we approach every job with the same level of dedication and commitment to excellence.

What sets 5K Builder apart is our commitment to being actively involved in the construction process. With a foundation built on years of hands-on experience, owner Joaquin Eligio brings both practical craftsmanship and project management expertise to every job. From working directly alongside skilled tradesmen to coordinating subcontractors and overseeing project schedules, we believe strong leadership comes from understanding every aspect of the work being performed.

At 5K Builder, we understand that inviting a contractor into your home or business is an important decision. That’s why we prioritize building strong relationships with our clients, maintaining open communication throughout the construction process, and treating every project with the care and respect it deserves.

Our goal isn’t simply to complete a project. It’s to bring our clients’ visions to life while delivering lasting quality, dependable service, and craftsmanship they can be proud of for years to come.

From the initial consultation to the finishing touches, 5K Builder is committed to making the construction experience as organized, transparent, and rewarding as possible.