Welcome to TMC Construction Inc.

Building Civil Infrastructure with Precision and Accountability

TMC Construction Inc. is a Southern California heavy civil contractor specializing in wet utilities, dry utilities, grading, demolition, and complete site development.

From underground sewer, storm drain, domestic water, and fire water installations to electrical conduit systems and mass grading operations, our team delivers disciplined execution, cost control, and field-driven leadership on every project.

We partner with developers, general contractors, and municipalities to construct infrastructure that performs — safely, efficiently, and built to last.

Services

Wet Utility Installation

TMC Construction Inc. specializes in the installation of underground wet utility systems, including sewer, storm drain, domestic water, and fire water infrastructure. Our team delivers precise trenching, pipe placement, bedding, backfill, and system coordination in compliance with municipal and project specifications.

From small-scale developments to large commercial and infrastructure projects, we approach every installation with disciplined execution, safety-focused operations, and strict quality control. We understand the importance of proper grade, compaction, and inspection coordination to ensure long-term system performance.

Our experience in underground utility construction allows us to efficiently manage tie-ins, connections, testing, and final approvals while maintaining project schedules and cost control. We are committed to delivering dependable infrastructure that supports both immediate development needs and long-term community growth.

Dry Utility Installation

TMC Construction Inc. provides professional installation of underground dry utility systems, including electrical conduit, communication lines, and joint trench infrastructure. Our team performs precision trenching, conduit placement, vault installation, backfill, and compaction in accordance with project plans and utility provider standards.

We coordinate closely with developers, general contractors, and utility companies to ensure proper layout, spacing, and compliance with regional specifications. From primary and secondary electrical systems to telecommunications infrastructure, we manage installations with careful attention to detail and long-term performance.

Our structured approach to scheduling and site coordination allows dry utility work to integrate seamlessly with wet utility and grading operations, minimizing delays and maintaining project momentum. TMC Construction Inc. is committed to delivering reliable underground systems that support safe and efficient power and communication distribution.

Demolition & Grading

TMC Construction Inc. provides controlled demolition, site clearing, and precision grading services to prepare projects for safe and efficient construction. Our team performs structural and site demolition with careful planning, proper material handling, and strict adherence to safety standards.

Following demolition, we execute mass grading, excavation, trenching, and site preparation to establish stable, build-ready foundations. With experienced equipment operators and disciplined field supervision, we ensure accurate elevations, proper compaction, and compliance with engineered grading plans.

From residential developments to commercial and infrastructure projects, we approach every site with attention to detail, schedule coordination, and environmental responsibility. Our integrated grading and utility expertise allows us to transition seamlessly from site preparation to underground infrastructure installation, maintaining project momentum from start to finish.

Frequently Asked Questions

What types of projects do you specialize in?

TMC Construction Inc. specializes in heavy civil construction projects including wet utility installation (sewer, storm drain, domestic water, and fire lines), dry utility infrastructure, grading, demolition, and full site development.

We serve commercial developments, residential subdivisions, and municipal infrastructure projects throughout Southern California, delivering disciplined execution and cost-controlled performance from start to finish.

How long does a typical construction project take?

Project timelines vary depending on scope, site conditions, utility requirements, and coordination with local agencies. Smaller utility or grading projects may be completed within weeks, while larger infrastructure and site development projects may span several months.

Our team develops structured schedules during preconstruction to maintain efficiency, minimize delays, and keep projects aligned with overall development timelines.

Do you provide free estimates?

Yes. TMC Construction Inc. provides detailed and transparent project estimates. Our estimating process includes thorough plan review, quantity takeoffs, and cost analysis to ensure accuracy and budget alignment.

We work closely with developers and general contractors during preconstruction to provide reliable pricing and clear project expectations.

Leadership Team

President | Director of Field Operations
Trino Mendoza
(951) 334-1315
Trino@TMCConstructionInc.com

Senior Construction Advisor
Frank Hughes
(951) 870-9618
Frank@TMCConstructionInc.com

Director of Operations & Human Resources
Martha Mendoza
(951) 426-9720
Martha@TMCConstructionInc.com

Accounting Manager - Accounts Payable & Receivable
Littzy Mendoza
(909) 676-7289
Littzy@TMCConstructionInc.com

Project Manager & Senior Estimator
Carrie Hughes
(951) 707-9940
Carrie@TMCConstructionInc.com

Get in touch with us today to discuss your construction needs.

About Us

TMC Construction Inc. is a licensed heavy civil and utility contractor based in Colton, California. We specialize in wet utilities, dry utilities, grading, demolition, and complete site development for public works and private commercial projects.

With extensive experience in sewer, storm drain, domestic water, fire lines, electrical conduit systems, and underground infrastructure, our team delivers precise, schedule-driven construction solutions that meet city standards and exceed client expectations.

At TMC Construction, we are committed to quality workmanship, safety, and reliable project execution from start to finish.

License #1133801