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Custom Locksmith & Alarm Custom Locksmith & Alarm
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Business Details
46 Years
experience
Emergency
services
Your Trusted Partner for Security Solutions in Turlock, CA
Custom Locksmith & Alarm is a family-owned business that has served the community for 25 years, prioritizing local expertise and personalized connections. Our team of friendly, knowledgeable professionals stays current with industry training to deliver first-class service tailored to residential and commercial security needs. We specialize in integrated solutions including alarm systems, surveillance cameras, access control, and GPS vehicle tracking, ensuring reliability and usability.

With a commitment to community involvement, we support local charities and agriculture while maintaining state licenses for alarm, locksmith, and contracting services. Our focus remains on providing security solutions that align with client needs, combining technical proficiency with a personal touch.
Services
Security Alarm Systems Surveillance Camera Installation Lock Repair and Installation GPS Vehicle Tracking Access Control Systems Perimeter Security Central Vacuum Systems Structured Wiring
Details
  • Year established: 1980
Highlights and features
  • We have 35 years of experience in integrated security solutions.
  • Our team includes certified experts with state-specific licenses.
  • We prioritize personalized service with local market expertise.
  • We offer 24/7 support for emergency security needs.
  • We actively support community initiatives and agriculture.
Associations and certifications
  • Contractor's Lic. #717989
  • Alarm Lic. #ACO6122
  • Alarm Lic. #ACQ4844
  • Locksmith Lic. #LCO3809
Update Listing
Services
Security Alarm Systems
Custom-tailored alarm systems provide robust security solutions for homes and businesses. Our systems integrate with surveillance cameras and access control for comprehensive protection. With real-time monitoring and remote management via mobile devices, clients gain peace of mind knowing their properties are secure.
Surveillance Camera Systems
High-resolution surveillance cameras offer live feeds and remote access via smartphones or tablets. These systems complement alarm networks and provide visual verification of security events. Real-time monitoring ensures immediate response to potential threats.
Access Control Systems
Remote access control systems allow centralized management of entry points through mobile devices. Ideal for commercial properties, these systems enhance security by restricting unauthorized access while providing detailed usage logs for improved oversight.
GPS Vehicle Tracking
GPS tracking solutions enable efficient management of company vehicles and employee movements. These systems provide real-time location data, route history, and alerts for unauthorized use, ensuring asset security and operational accountability.
Lock Repair and Installation
Professional lock repair and installation services cover residential and commercial needs. Our certified technicians handle emergency lockouts, key duplication, and high-security lock upgrades using industry-standard tools and techniques.
People
Mark Serpa
President / Project Design / Sales
Owner since 1993, Mark Serpa brings 30+ years of security expertise. Raised on a farm, he specializes in agricultural security solutions and emphasizes personalized customer education during system installations.
Chasen Serpa
Vice President / Field Tech / Security Consultant
Chasen Serpa oversees operations with expertise in cameras, alarms, and access control. He prioritizes personalized service and has worked in the industry since childhood, ensuring technical excellence and client satisfaction.
Jessica
Operations Manager
Jessica manages daily operations, coordinating field technicians and ensuring timely project completion. Her organizational skills maintain workflow efficiency across residential and commercial security installations.
Eryk
Field Tech / Security Consultant
Eryk provides on-site technical support and security consultations. His hands-on experience spans camera systems, alarms, and access control, delivering practical solutions tailored to client requirements.
Brian
Field Tech / Security Consultant / Project Design
Brian combines technical expertise with project design skills. He specializes in creating customized security blueprints that balance usability with advanced protection features for residential and commercial properties.
Questions
What security services do you offer for residential properties?
We provide alarm systems, surveillance cameras, access control, GPS vehicle tracking, and lock repair services tailored to home security needs.
Are your technicians licensed and insured?
Yes, we hold multiple state licenses including Contractor's Lic. #717989 and Locksmith Lic. #LCO3809, with fully insured operations.
Do you offer 24/7 emergency support?
Emergency services are available outside regular hours for urgent security issues like lockouts or system malfunctions.
Can I monitor my security system remotely?
Yes, our alarm systems and cameras integrate with mobile apps for real-time monitoring and control from anywhere.
What areas do you serve?
We primarily serve Turlock, CA and the broader Central Valley region for residential and commercial security needs.