Business Details
50+ Years
experience
Emergency
services
Expert Electrical Engineering & Construction Services
Founded in 1962, Thoma Electric has established itself as a premier electrical engineering, design/build, and construction contractor serving California and the West Coast. With over five decades of experience, our team of qualified engineers, designers, and electricians has completed thousands of high-profile projects across commercial, government, healthcare, and industrial sectors. We specialize in energy-efficient solutions, LEED-certified projects, and critical power systems, maintaining a commitment to innovation, sustainability, and client satisfaction.Our vertically integrated approach combines engineering, design, and construction under one roof, minimizing risks and ensuring seamless project execution. Recognized for technical expertise and community engagement, we prioritize integrity, accountability, and continuous professional development for our staff.
Services
Electrical Engineering
Design/Build Services
Electrical Construction
LEED Certification
Emergency Service
Power Systems Design
Fiber Optic Installation
Critical Power Systems
Energy Efficiency Solutions
Public Safety Infrastructure
Details
- Year established: 1962
Highlights and features
- We have completed over 25 LEED-certified projects since 1981
- Our team includes licensed Professional Engineers and IBEW-trained technicians
- We offer 24/7 emergency electrical service with rapid response times
- We maintain state-of-the-art fiber splicing and power monitoring equipment
- Our vertically integrated model provides single-source accountability for all services
Associations and certifications
- LEED
Services
Electrical Engineering
Our electrical engineering team specializes in complex systems design for healthcare facilities, government buildings, and industrial complexes. With 60+ years of experience, we deliver innovative solutions for power distribution, lighting systems, and emergency power infrastructure. Our engineers hold Professional Engineer licenses and maintain expertise in OSHPD compliance for healthcare facilities.
Design/Build Services
Thoma Electric's design/build approach combines engineering and construction under one contract. This method streamlines communication, reduces project timelines by 30%, and ensures cost predictability. Our team manages all aspects from concept through installation, including permit coordination and utility integration for commercial and public sector clients.
Electrical Construction
We execute full-service electrical construction for commercial and industrial projects up to 300,000 sq ft. Our IBEW-certified technicians install advanced power systems, fiber optic networks, and critical standby infrastructure. With capacity for 120+ electricians on site, we guarantee code-compliant installations completed on schedule and within budget.
Emergency Service
Thoma Electric provides 24/7 emergency electrical services with rapid response teams available for critical system failures. Our technicians handle urgent repairs for commercial properties, healthcare facilities, and public safety infrastructure. Service+ includes after-hours support for both planned maintenance and unplanned outages across California.
LEED Certification
We specialize in LEED-certified electrical systems for commercial and institutional buildings. Our engineers have contributed to over 25 LEED projects, implementing energy-efficient lighting, power monitoring systems, and sustainable infrastructure. Our expertise ensures compliance with green building standards while maintaining operational efficiency.
People
William A. Thoma
President, Secretary, CFO
William A. Thoma leads Thoma Electric's financial and operational strategy. With 40+ years in the electrical industry, he maintains the company's founding commitment to quality while driving growth through sustainable practices and technological innovation.
James Dean
Engineering Manager
James Dean oversees engineering operations with 25+ years of experience in electrical systems design. He manages complex projects including healthcare facilities and public safety infrastructure, ensuring technical excellence and code compliance for all engineering deliverables.
Jeffrey Thoma
Vice President, Electrical Engineer
Jeffrey Thoma, a licensed Professional Engineer, directs technical operations and project execution. With expertise in critical power systems, he ensures Thoma Electric maintains industry leadership in emergency power solutions and LEED-certified projects.
Steve Arnold
Senior Estimator
Steve Arnold brings 30+ years of electrical construction expertise to project cost analysis. His precise estimating ensures competitive pricing while maintaining quality standards across commercial and industrial projects throughout California.
Christina Acevedo
Service Coordinator
Christina Acevedo manages Thoma Electric's 24/7 service operations. With 15+ years in electrical coordination, she ensures rapid response times for emergency repairs and efficient scheduling of maintenance services for commercial clients.
Questions
What areas does Thoma Electric serve?
We primarily serve California and the West Coast, with project experience from San Luis Obispo to Northern California and inland to Arizona.
Do you handle both commercial and residential projects?
While our core focus is commercial, industrial, and public sector projects, we offer 24/7 emergency service for residential clients through our Service+ program.
Are your electricians certified?
All our electricians complete a five-year apprenticeship with 1,200+ classroom hours and 8,000+ on-the-job hours. Most hold IBEW certifications and state licenses.
Can you handle LEED-certified projects?
Yes, we've contributed to over 25 LEED-certified projects since 1981, implementing energy-efficient systems that meet green building standards.
What emergency services do you offer?
Our 24/7 Service+ handles electrical emergencies for commercial properties, healthcare facilities, and public infrastructure with rapid response teams available statewide.
How does your Design/Build approach benefit clients?
Our single-source model reduces project timelines by 30%, minimizes change orders, and provides unified accountability from design through construction completion.
