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Southland Industries

General Contractor
Founded in
1949
Privately Held
$3.5B
3140
Project Management, Energy Services, Construction, HVAC, Engineering, Plumbing, Fire Protection, Process Piping, Service & Maintenance, Controls & Automation, Repair & Retrofit
(800) 613-6240
Visit Website
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Garden Grove, California, United States

About Southland Industries

Southland Industries is a premier provider of building systems solutions, recognized as one of the nation's largest experts in the domain. Founded 75 years ago, the company has built a robust reputation for delivering innovative and practical results tailored to meet diverse engineering, construction, service, and energy needs. Specializing in Mechanical, Electrical, and Plumbing (MEP) systems, Southland Industries offers integrated solutions that encompass the full lifecycle of building projects. This comprehensive approach not only optimizes the construction process but also aligns with clients’ overarching business strategies.

The company serves a broad range of sectors, including commercial enterprises, data centers, federal government projects, and the healthcare industry. Southland Industries has positioned itself as a reliable partner, capable of adapting its services to address the specific requirements of these sectors, ensuring that projects are completed with the utmost efficiency and effectiveness. Their commitment to quality and a customer-centric approach has garnered them numerous accolades, highlighting their position as a leader in the mechanical contracting field.

Recognized for excellence, Southland Industries is proud to celebrate its milestone of 75 years in operation, a testament to its enduring legacy in the industry. The organization has also received acknowledgment as a “Great Place to Work” for the years 2024-2025, further illustrating its commitment to fostering a positive work environment for its employees. Additionally, it has been listed among the Largest Mechanical Contractors in Greater Washington for 2023, showcasing its significant presence and impact in that region. With a strategic blend of in-house expertise and holistic solutions, Southland Industries continues to push the boundaries of what is achievable in building systems, ensuring sustainability and performance for every project they undertake.

Need to submit a Pay App to Southland Industries?

Payment applications generally include the application for payment form and a continuation sheet (which includes a schedule of values and change orders). Depending on the situation, you may also include backup documents like materials receipts and invoices, payroll wage reports, and lien waivers.

It's a lot to keep straight, and it's further complicated by most GCs requiring their own custom payment application forms, rather than standard AIA templates. Fortunately, Siteline has more than 8,000 forms from over 6,000 GCs—in our system. Our software streamlines the entire monthly billing workflow, ensuring you submit the perfect pay apps on time, every time, which gets your invoices paid about three weeks faster.Want to see for yourself?

Schedule a Demo

All of Southland Industries's locations

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many forms with different layouts