Built on Craftsmanship, Guided by Integrity

JDF Builders is a custom home builder serving the South Bay communities of Manhattan Beach, Hermosa Beach, Redondo Beach, and El Segundo. Specializing in ground-up custom homes, design-build projects, and high-end home renovations, JDF Builders is known for a hands-on approach, exceptional craftsmanship, and a building experience focused on transparency and communication. Led by second-generation builder Jacob, the company works closely with homeowners to create homes that are thoughtfully designed, beautifully built, and made to last for generations.

A Builder Who’s Personally Involved

Unlike many contractors who manage projects from a distance, Jacob takes a hands-on approach to every home JDF Builders creates. He remains closely involved throughout the process—showing up on-site, guiding the team, and ensuring the details are done right.
This level of involvement allows projects to stay organized, communication to remain clear, and craftsmanship to remain a priority.

Homes Designed for the Way Families Live

From ground-up custom homes to thoughtful renovations, JDF Builders helps families create homes that reflect their lifestyle and support the way they live every day.
Because when a home is built with intention and integrity, you can feel the difference the moment you walk through the door.

Words From Our Past Clients

Jacob Fienup, the general contractor, was consistently present on my project. The work advanced in an organized and efficient manner, and any issues that arose were identified and resolved to my satisfaction...The curb appeal is striking and the finishes have been expertly installed by talented artisans. I am truly delighted with my new and improved home, and I could not be happier with the results.

There is a fantastic rapport between Jacob and his subcontractors; many have worked together for years and speak highly of the team. Jacob is invested in his work and takes pride in doing the best job for his clients. We are very happy with our remodel and Jacob's attention to detail on our home.

Building a home can be a stressful process, but working with Jacob made it an incredibly positive experience. From the very beginning, he was honest, reliable, and always easy to communicate with. He kept us informed every step of the way, which gave us so much peace of mind throughout the entire project.