John Man Construction

Sierra Group is a service-focused company based in Glendale, CA, specializing in commercial construction, facility maintenance, and electronic security. With three independent business units, they provide a wide range of trade services to corporate, financial, industrial, municipal, and government institutions. Their commitment to service, dependability, and cost-effective solutions is evident in their adherence to industry best practices. Sierra Group's commercial construction division delivers seasoned contractors and established best practices to ensure successful projects. Their facility maintenance team offers a comprehensive range of services, including preventative maintenance programs, while their electronic security division provides state-of-the-art solutions for video surveillance, access control, alarm systems, and intercoms. With a culture of integrity and a focus on customer satisfaction, Sierra Group is a trusted partner for all building maintenance needs.Generated from the website