About Us

TMC Construction Inc. is a Southern California-based heavy civil contractor specializing in wet utilities, dry utilities, grading, site development, and infrastructure improvements. We provide comprehensive construction services for developers, general contractors, and municipalities throughout the region.

Our work includes underground sewer, storm drain, domestic water, fire water, electrical, and communication systems, as well as mass grading, trenching, and complete site development packages. From initial planning through final installation, we approach every project with disciplined execution, safety-focused field operations, and detailed cost control.

What sets TMC Construction apart is the integration of experienced field leadership with structured preconstruction planning. Our team combines hands-on construction knowledge with accurate estimating, scheduling, and project management systems to ensure efficient delivery and budget protection. This balance allows us to minimize risk, maintain timelines, and provide clear communication at every phase of construction.

We believe strong projects are built on more than equipment and manpower — they are built on accountability, transparency, and long-term relationships. Our leadership team is actively involved in both field and office operations, ensuring quality standards are upheld and client expectations are exceeded.

At TMC Construction Inc., we are committed to delivering infrastructure that performs, partnerships that last, and projects that reflect the highest level of professionalism in the civil construction industry.

“When the ground breaks, we’re already ahead.”

Our History

TMC Construction Inc. was founded on a foundation of hands-on field experience, strong leadership, and a deep understanding of civil construction. Built by a family rooted in the industry, our company reflects decades of combined knowledge in underground utilities, grading, and infrastructure development throughout Southern California.

From the beginning, our focus has been simple: deliver dependable work, operate with integrity, and build long-term relationships. Early projects centered on utility installations and site development, where disciplined execution and attention to detail quickly became hallmarks of our work. Through steady performance and a commitment to doing things the right way, TMC earned the trust of clients, partners, and municipalities.

As the company grew, so did our capabilities. What started as focused field operations expanded into a structured organization with dedicated leadership in field management, preconstruction planning, estimating, accounting, compliance, and human resources. This balance of field expertise and administrative strength allows us to approach every project with both practical knowledge and strategic planning.

Today, TMC Construction Inc. continues to build on that foundation. We combine experienced field leadership with modern project management systems, detailed cost control, and a forward-thinking approach to construction operations. While our company has evolved, the values that shaped us remain constant — hard work, accountability, precision, and a commitment to quality.

Our history is not defined by where we started, but by how we continue to grow — delivering reliable civil construction solutions that support long-term infrastructure and community developmen

“Our story isn’t just about projects completed — it’s about relationships built, standards upheld, and foundations that last.”

Leadership Team

TMC Construction Inc. is led by an experienced team of construction professionals specializing in heavy civil, site development, and utility infrastructure throughout Southern California.

Trino Mendoza
President | Director of Field Operations
Trino oversees all field operations, crew performance, safety, and on-site execution. With extensive hands-on construction experience, he ensures every project is delivered efficiently, safely, and to the highest standard of quality.
(951) 334-1315 | Trino@TMCConstructionInc.com

Frank Hughes
Senior Construction Advisor
Frank provides strategic oversight and technical guidance across all phases of construction. With decades of industry experience, he supports project planning, field operations, and high-level decision-making to ensure long-term success.
(951) 870-9618 | Frank@TMCConstructionInc.com

Martha Mendoza
Director of Operations & Human Resources
Martha leads corporate operations, administrative management, human resources, and compliance. She oversees internal systems, permitting coordination, and organizational structure to ensure seamless project support and regulatory compliance.
(951) 426-9720 | Martha@TMCConstructionInc.com

Littzy Mendoza
Accounting Manager – Accounts Payable & Receivable
Littzy manages all financial operations including accounts payable, accounts receivable, billing, and vendor coordination. She ensures accurate financial tracking and timely processing across all projects.
(909) 676-7289 | Littzy@TMCConstructionInc.com

Carrie Hughes
Project Manager & Chief Estimator

Carrie leads preconstruction planning, cost estimating, budgeting, and project management. She specializes in detailed takeoffs, scheduling, and cost control strategies that protect client budgets while maintaining quality and efficiency.
(951) 707-9940 | Carrie@TMCConstructionInc.com