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Leadership lead project mangament by triangles decon services

Complex Projects
Proven Leadership
Lasting Impact

Providing the structure, coordination, and accountability that keep projects moving forward with confidence.

HOW WE DELIVER

Every project follows a structured process from planning through closeout.

Plan Proactively

Lead

Every Phase

Guide Strategically

  • Identify risks early

  • Coordinate stakeholders

  • Clarify project objectives

  • Reduce uncertainty before work begins

  • Provide active oversight

  • Guide timely decisions

  • Maintain consistent coordination

  • Keep projects moving forward

  • Deliver actionable insights

  • Support confident decisions

  • Manage risk proactively

  • Protect long-term value

SERVICES

Integrated Services. Purpose Built.

From early planning through project closeout, Triangle provides integrated construction management services tailored to the unique needs of California's public agencies.

Design and Development Services

Development & Design

EXPLORE SERVICE

PLANNING • COORDINATION • STAKEHOLDER ALIGNMENT

construction management services

Construction Management

PROJECT MANAGEMENT • COST CONTROL • QUALITY ASSURANCE

EXPLORE SERVICE

General contracting services

General Contracting

EXPLORE SERVICE

PRECONSTRUCTION • CONSTRUCTION • TURNOVER & CLOSEOUT

Program Management

PROGRAM PLANNING • RESOURCE MANAGEMENT • REPORTING & OVERSIGHT

EXPLORE SERVICE

advisor services

Advisory Services

OWNER ADVISORY • RISK MANAGEMENT • STRATEGIC SUPPORT

EXPLORE SERVICE

OUR EXPERTISE

Integrated Services Built for Every Phase

From early planning through project closeout, Triangle DeCon Services, Inc. provides integrated

project services that bring structure, coordination, and accountability to complex projects.

Design and Development Services

Development & Design

PLANNING • COORDINATION • STAKEHOLDER ALIGNMENT

construction management services

Construction Management

PROJECT MANAGEMENT• COST CONTROL • QUALITY ASSURANCE

General contracting services

General Contracting

PRECONSTRUCTION • CONSTRUCTION • TURNOVER & CLOSEOUT

Program Management

PROGRAM PLANNING • RESOURCE MANAGEMENT • REPORTING & OVERSIGHT

Program management services

Advisory Services

OWNER ADVISORY • RISK MANAGEMENT • STRATEGIC SUPPORT

advisor services
ABOUT
Triangle DeCon construction team reviewing project plans on site

WHY TRIANGLE

Partners in Your Mission Committed to Your Success

We combine deep expertise, public agency experience, and unwavering integrity to deliver successful outcomes for the communities we serve.

PUBLIC SECTOR FOCUSED

PROVEN
EXPERIENCE

TRUE

PARTNERSHIP

We specialize in K–12, higher education, and civic projects across California.

Decades of proven performance on complex, high-stakes projects statewide.

We work alongside owners, design teams, and communities as true partners.

EXPERIENCE ACROSS

Complex Project Environments

K–12 EDUCATION

LIBRARIES

HIGHER EDUCATION

COMMUNITY COLLEGES

MUNICIPAL FACILITIES

CIVIC FACILITIES

PROJECTS

SELECTED PROJECTS

Proof Built Over Decades

From historic restorations to complex new construction, we deliver results that strengthen communities and stand the test of time.

Marshall High School historic facade restoration project by Triangle DeCon Services
Thomas Jefferson High School renovation project by Triangle DeCon Services
Anaheim College tower expansion project by Triangle DeCon Services

$3M–$265M

100+

30+

California

PROJECT RANGE

PROJECTS DELIVERED

YEARS OF EXPERIENCE

STATEWIDE EXPERIENCE

OUR EXPERIENCE

Occupied Campus Construction

Built for Complex Project Conditions

Historic Restoration

Multi-Phase Capital Improvements

We bring the experience, insight, and leadership needed to deliver successful outcomes in the most demanding environments.

Program & Construction Management

Stakeholder Coordination

Logos of school districts, cities, and public agencies served by Triangle DeCon Services

TRUSTED BY

Whether you're planning your next project or navigating a complex construction challenge, we'd welcome the opportunity to talk.

Build with Confidence

Triangle logo

25422 Adriana St. Mission Viejo, CA 92691

310-739-1198

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