17715 Chatsworth St, Granada Hills, CA 91344
License : 1144758
Onyx General Building is a Granada Hills–based general contractor proudly serving homeowners and property managers throughout Northridge, Chatsworth, Porter Ranch, and the Upper San Fernando Valley.
With years of hands-on experience, we deliver reliable construction, remodeling, and repair services with a strong focus on quality, communication, and local expertise. By working exclusively in our surrounding communities, we provide faster response times, personalized service, and craftsmanship you can trust.
Local. Experienced. Built on quality.
From garage conversions to full home additions, we design and build ADUs and expansions that blend seamlessly with your existing home. Our team handles everything from layout and structure to finishes, helping you add living space, rental income, or multi-generational housing with confidence.
Whether you have plans or are starting from scratch, we bring your vision to life with quality craftsmanship from concept to completion.
Whether you’re updating one room or remodeling your entire home, we deliver quality craftsmanship and thoughtful design. We focus on functionality, durability, and clean finishes to transform your space while staying on schedule and on budget.
We provide reliable electrical and plumbing services for remodels, additions, and new construction. From panel upgrades and lighting to piping, fixtures, and code compliance, all work is handled safely and professionally.
Kitchens and bathrooms are where quality matters most. We create modern, functional spaces with custom layouts, cabinetry, tile, lighting, and finishes that elevate both comfort and home value.
Permits don’t have to be stressful. We assist with planning, drawings, and permit coordination to ensure your project meets local codes and moves forward smoothly with the city.
Our office is physically located in Granada Hills, making us a real local general building company, not a call center or out-of-area contractor.
We don't use salesmen or a sales department. You deal directly with experienced builders, not pushy sales reps.
From small repairs to full projects, we focus on quality workmanship, proper materials, and long-lasting results.
Clear, straightforward pricing with no hidden costs, so you know exactly what to expect.
Our office is physically located in Granada Hills, making us a real local general building company, not a call center or out-of-area contractor.
We don't use salesmen or a sales department. You deal directly with experienced builders, not pushy sales reps.
From small repairs to full projects, we focus on quality workmanship, proper materials, and long-lasting results.
Clear, straightforward pricing with no hidden costs, so you know exactly what to expect.
A look at our build process:
framing, systems, and custom steel stairs in Granada Hills.
Reliable work and straightforward communication. They guided the process, coordinated trades, and made the project feel smooth from start to finish.
The team paid attention to the details that matter: clean lines, solid installs, and a polished final result. We felt taken care of throughout the project.
From planning to final walkthrough, everything felt handled. Clear timelines, honest updates, and workmanship that exceeded expectations.
Onyx General Building was professional, organized, and easy to communicate with. The crew stayed on schedule, kept the site clean, and delivered quality finishes.