Home builder serving Fontana, CA since 2019

Before Castillos Construction Services opened its doors, our founder spent more than 30 years running a garage door business across the Inland Empire and surrounding communities. That work kept him on job sites day after day, and construction was always part of the picture. He handled additions, renovations, and structural work on the side throughout those decades, building a hands-on skill set that no classroom can replicate.

In 2019, he made it official. Castillos Construction Services, Inc. was founded to bring that same ground-level experience to homeowners and property owners who need new construction done right. The business is built on real trade knowledge, not a learning curve.

We specialize in new home builds, ADU construction, home additions, and renovations. Whether you are starting from a blank lot or adding space to an existing property, we handle the work from the ground up. Our team understands what it takes to bring a project from plans to a finished structure you can actually live in.

ADUs have become one of the most practical ways for California homeowners to add value and usable space to their property. We build accessory dwelling units that meet local code and work for real families, whether that means housing a family member, creating rental income, or simply gaining extra room.

We serve homeowners and property owners across Fontana, Riverside, Monrovia, Upland, Jurupa, Rancho Cucamonga, and Highland. These are the communities we know, and they are the communities we are proud to build in.

Castillos Construction Services, Inc. holds California Contractor License No. 1069732. You can reach us Monday through Friday, 8 a.m. to 5 p.m., at (909) 430-8752 or by email at castillosconstructionservices@yahoo.com.

If you are planning a new home, an ADU, an addition, or a renovation, we would like to hear about your project. Call us today to request your free estimate.