The InterNACHI Certified Professional Inspector (CPI®) program is the most widely recognized home inspector certification in North America. InterNACHI (International Association of Certified Home Inspectors) is the world's largest home inspector association with over 37,000 members, and its school is accredited by ACCET — a national accrediting agency recognized by the U.S. Department of Education. The certification program includes free, comprehensive online training covering every major home system.

Program Structure

Format — 100% online, self-paced training through InterNACHI School (accredited by ACCET, recognized by U.S. Department of Education)
Duration — One-year certificate program; most students complete in 3–6 months with dedicated study
Courses Required — 12+ core courses including: Safe Practices, 25 Standards Every Inspector Should Know, Residential Plumbing, Electrical Inspections, Roof Inspections, HVAC Systems, Structural Issues, Exterior Inspection, Attic/Insulation/Ventilation/Interior, Deck Inspections, Moisture Intrusion, and Fireplaces/Stoves/Chimneys
Examination — Online Inspector Examination with 80% or higher passing score (must re-pass every 3 years)
Continuing Education — 24 hours of CE required; automatic online tracking system
Membership — Must maintain InterNACHI membership; certification expires upon cancellation

Certification Requirements (CPI®)

Join InterNACHI as a member
Complete all required training courses (free with membership)
Pass the Online Inspector Examination (80%+ score)
Adhere to InterNACHI Standards of Practice and Code of Ethics
Complete 24 hours of Continuing Education annually
Maintain online CE log
Re-pass examination every 3 years

What You Will Learn

Structural Systems — Foundation types, framing, load-bearing walls, settlement, structural defects, and common repair methods
Roofing — Shingle types, flashing, gutters, ventilation, leak detection, and roof lifespan assessment
Plumbing Systems — Water supply, drain-waste-vent systems, water heaters, fixtures, pipe materials, and common defects
Electrical Systems — Service panels, wiring types, grounding, GFCI/AFCI protection, and safety hazards
HVAC — Heating and cooling systems, ductwork, thermostats, heat pumps, and energy efficiency
Building Envelope — Exterior cladding, windows, doors, insulation, moisture barriers, and weatherproofing
Interior Systems — Walls, ceilings, floors, stairs, railings, and interior moisture issues
Safety & Compliance — Safe inspection practices, report writing, client communication, and legal/ethical responsibilities

Why This Certification Stands Out

Key advantages: (1) ACCET-accredited school recognized by U.S. Department of Education — the only home inspector training program with this level of accreditation. (2) All training courses are FREE with membership — no separate tuition costs. (3) World's largest home inspector association with 37,000+ members and extensive networking opportunities. (4) CPI® credential is recognized by real estate agents, lenders, and consumers nationwide. (5) Comprehensive continuing education library with hundreds of free courses. (6) Members-only forum for peer support and mentorship. (7) Business-building resources, marketing tools, and referral networks included with membership.

Career Outcomes

Home inspectors earn a median salary of $63,770/year (BLS, 2024). Experienced inspectors performing 4–5 inspections per week can earn $80,000–$120,000+. Many inspectors are self-employed with flexible schedules. Additional certifications in commercial inspection, mold, radon, and energy auditing can significantly increase earning potential. The real estate market drives consistent demand — approximately 6 million homes are sold annually in the U.S., most requiring inspection. BLS projects 6% growth for construction and building inspectors through 2032.

Who It Is For

Career changers seeking a flexible, self-employed profession; construction professionals wanting to transition to inspection; real estate professionals expanding their service offerings; retirees seeking part-time income; veterans transitioning to civilian careers; and anyone with an interest in residential construction and building science.

Pricing

InterNACHI membership: $49/month (cancel any time) or $499/year. ALL training courses, certification exams, and continuing education are FREE with membership. Total first-year cost: $499–$588 (membership only). Additional costs to consider: state licensing fees ($100–$500 depending on state), E&O insurance ($1,000–$2,000/year), inspection tools and equipment ($500–$2,000 initial investment), and report writing software ($50–$100/month).

Internachi certified professional inspector (cpi) — home inspector certification program

What users say

Rate this Education

Related Tools

Related Moonlites

Related Creators

About