Business Details
17 Years
experience
Your Trusted Construction Partner in El Cajon
Founded in 2009, Onyx Building Group is a distinguished woman-owned small business that has established itself as a leader in the construction industry. With over 15 years of experience, our team specializes in metal framing, drywall, lath, plaster, EIFS, and air barrier systems while maintaining California C9 and C35 contractor licenses. Having expanded operations beyond California to multiple western states, we deliver high-quality construction solutions across federal, public works, and private sector projects. Our certifications from the California Public Utilities Commission and Department of General Services validate our commitment to excellence.Through strategic partnerships and a focus on innovation, we've contributed to landmark projects including the Chase Center Gatehouse and Soboba Casino Resort. Our workforce development initiatives ensure we maintain skilled professionals capable of meeting complex project requirements. Client satisfaction remains central to our operations, reflected in our long-term partnerships and repeat business. With corporate offices in El Cajon, we serve diverse industries ranging from education to hospitality while upholding our core values of integrity and community impact.
Services
Metal Framing
Drywall Systems
Lath & Plaster
EIFS Installation
Air Barrier Systems
Fireproofing
Public Works Projects
Federal Construction
Details
- Year established: 2009
Highlights and features
- 15+ years of specialized construction experience since 2009
- California C9 and C35 licensed contractor status
- Woman-owned business with state certifications
- Proven expertise in federal and commercial construction
- Geographic reach across six western US states
Associations and certifications
- California Public Utilities Commission Woman-Owned Business Certification #14040093
- Department of General Services Small Business Certification #1547520
- Disadvantaged Business Enterprise #49764
Services
Metal Framing
Our licensed C9 contractors deliver precision metal framing solutions for commercial and federal projects. Using cold-formed steel construction methods, we create durable structural frameworks that meet exacting building code requirements. With experience in both interior and exterior applications, our team ensures optimal structural integrity while maintaining compliance with seismic and safety standards across California's diverse geography.
Drywall Systems
We provide comprehensive drywall installation and finishing services for new construction and renovation projects. Our certified technicians specialize in creating seamless wall surfaces through multi-layer gypsum assemblies. From acoustic control to fire-rated partitions, our solutions meet commercial building specifications while maintaining strict timelines for project completion across various facility types.
EIFS Installation
Our exterior insulation and finish systems combine energy efficiency with architectural aesthetics. Certified technicians apply multi-layer EIFS solutions that enhance building envelopes while resisting weather penetration. This service maintains R-value performance standards required for commercial structures while delivering customizable exterior finishes that meet design specifications for educational, hospitality, and federal facilities.
Air Barrier Systems
Specialized installation of continuous air and vapor barrier systems ensures building code compliance for energy efficiency. Our trained crews apply fluid-applied and membrane-based systems that prevent uncontrolled air leakage while maintaining structural integrity. These solutions meet California's Title 24 energy standards and contribute to LEED certification requirements for new commercial construction and retrofit projects.
Federal Construction
We execute complex federal construction projects including secure facilities and infrastructure upgrades. With experience in F22 radar facilities and battle command centers, our team understands specialized security requirements and compliance protocols. Our established processes for federal contracting ensure adherence to strict procurement guidelines while delivering mission-critical construction solutions on time and within budget.
People
Nicole Caya-Winfield
President
As founder and president, Nicole drives strategic growth while maintaining operational excellence. With over 15 years in construction management, she oversees project execution and business development, leveraging industry expertise to maintain the company's 98% client retention rate.
Kurtis Bullard
Senior Project Manager
Kurtis manages large-scale federal projects with specialized security requirements. His 12-year construction background includes overseeing complex installations in restricted environments, ensuring both technical precision and compliance with government contracting standards.
Claudia Garcia
Labor Compliance/Payroll Manager
Claudia ensures payroll accuracy and labor law compliance across multi-state operations. With eight years in construction administration, she maintains union compliance and workforce documentation for projects ranging from education facilities to hospitality developments.
Brian Miranda
Estimator
Brian provides accurate cost projections for new projects using advanced quantity takeoff techniques. His 10-year industry experience includes developing bids for federal infrastructure that balance competitive pricing with margin protection for the company.
Matt Chase
Lathing Superintendent
Matt oversees all lathing operations with 18 years of field experience. He ensures proper installation of reinforcing mesh for plaster applications, maintaining quality standards across diverse commercial projects from educational facilities to entertainment venues.
Questions
What construction specialties does Onyx offer?
We specialize in metal framing, drywall, EIFS, air barriers, and lath/plaster systems while maintaining California C9/C35 licenses for commercial and federal projects.
Are you certified as a woman-owned business?
Yes, we hold California Public Utilities Commission Woman-Owned Business Certification #14040093 and Department of General Services Small Business Certification #1547520.
Which states do you operate in?
Primarily California with active projects across New Mexico, South Dakota, Utah, Colorado, Wyoming, and Idaho spanning federal and commercial sectors.
What federal projects have you completed?
Our portfolio includes F22 radar facilities, battle command centers, and deployment facilities with specialized construction requirements for government agencies.
How do you ensure project quality?
Through certified technicians, rigorous quality control processes, and adherence to building codes. Our work complies with federal, state, and local regulations for all construction phases.
Can you handle large-scale commercial projects?
Yes, our experience includes major developments like the Moscone Center Expansion and Soboba Casino Resort across education, hospitality, and entertainment sectors.
