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Professional Construction Education

Construction Education
Built for the Real World

Now serving the nation as well as the Front Range
Residential and commercial code education taught by a former general contractor, building inspector, and code educator.

Live G13 Residential Contractor Exam Prep is available online nationwide and in person on Saturdays at Office Evolution in Lakewood, Colorado.

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A man in a gray shirt and a baseball cap is standing and speaking in front of a room of seated people with books and notebooks, with a large presentation slide on the wall behind him.

Live instructor-led programs in contractor licensing exams, code navigation, project management, and operational construction systems.

This is not passive video coursework or memorization-based test prep. These programs are built around practical construction experience, working code application, and operational competence.

September 2026 Cohorts

Enrollment Is Now Open

Five-week live G13 exam preparation. Codebook and tab kit included.

National Online

G13 Residential Exam Preparation

Starts September 2 · Wednesdays and Fridays, 5:00–7:00 p.m. MT

Enroll Online
Denver In Person

G13 Residential Exam Preparation

Starts September 5 · Saturdays, 10:00 a.m.–2:00 p.m. · Lakewood

Enroll in Denver

WHAT SETS NCSI APART

Built on Experience.
Focused on Education.

NCSI was founded to provide practical, professional construction education grounded in decades of experience as a general contractor, building inspector, and educator. Every course is designed to develop lasting competence, confident decision-making, and success throughout a construction career.

  • Zero marketing fluff

  • No high-pressure sales tactics

  • No membership dues or unnecessary add-ons

  • Just contractor education built by a contractor, for contractors

A Different Way to Navigate the Code

We teach students to navigate the code efficiently, find information quickly, and apply it under real-world construction conditions.

Custom Tabs & Reference Systems

Custom tab systems and organized reference materials built around the navigation methods taught in class — less page-flipping, more understanding.

Built Around Real Construction

Training is built around inspections, plans, project coordination, documentation, and the problems contractors actually run into on real jobsites.

Live Instructor-Led Training

No giant prerecorded video libraries. Students work directly with a live instructor using guided exercises, practical examples, and real-world problem solving.

Built for Long-Term Construction Competence

Passing the exam matters — but long-term success comes from knowing how to find information, solve problems, stay organized, and operate professionally under pressure.

FEATURED PROGRAMS

Find the Right Path for You

  • A person with a beard wearing a gray polo shirt with 'KRA' embroidered on it, working on architectural blueprints at a wooden table, holding a pen and a roller for unrolling paper.

    Residential Contractor Licensing Preparation

    Instructor-led training built around the National Standard Residential Contractor (G13) exam. Learn to navigate and apply the IRC using the NCSI navigation system and real-world examples.

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  • A view looking up at tall modern skyscrapers in a city, with glass exteriors reflecting the sky.

    Commercial Contractor Licensing Preparation

    Training designed around the National Standard Commercial Contractor (G12) exam and commercial code navigation, reference lookup, documentation, and real commercial-project problems.

    View Program →

  • People working at a desk with laptops, papers, and pens, engaged in a collaborative discussion.

    Contractor 101: Business and Project Systems

    Practical construction training focused on project organization, documentation, communication, scheduling, and the operational systems used in the real world.

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  • Hands with a pen writing on paper, a ruler and architectural plans on a wooden table, a rolled-up blueprint nearby.

    Plan Reading & Estimating for the New Contractor

    Designed to strengthen code literacy, construction knowledge, and long-term professional competence within the construction industry.

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Who These Programs Are Built For

  • Contractors preparing for licensing exams

  • Project managers and supervisors

  • Individuals entering construction

  • Pros strengthening code knowledge

  • Owner-builders & small business operators

  • Contractors building stronger systems

Preparing for an ICC Contractor Exam?

NCSI provides live, instructor-led preparation for the ICC G13 Residential and G12 Commercial exams, with online classes available nationwide and in-person instruction in Denver, Colorado.

Choose Your Class Option
ICC Preferred Education Provider
ICC Preferred Education Provider

The Standard for Code Knowledge in North America

NCSI provides live, instructor-led education for beginning students as well as experienced code professionals. Students learn to navigate the IRC and IBC efficiently, organize their approved references, work through exam-style questions, and apply the code under timed testing conditions.

Practical preparation led by an experienced general contractor, building inspector, and construction educator.

WHAT STUDENTS ARE SAYING

Trusted by Contractors Nationwide and Here in Colorado

Have questions before you enroll?

Schedule a consultation and we’ll help you map your path to licensure.