InterNACHI® Headquarters and the House of Horrors® are located at 4635 Nautilus Court S, Suite C in Boulder, Colorado (80301), about 50 minutes from Denver International Airport. Click here for the Google map.

Inspect the House of Horrors®

InterNACHI House of Horrors

At the House of Horrors® -- an entire house with a thousand defects built inside InterNACHI® Headquarters -- you can:

  • practice performing home inspections;
  • practice writing inspection reports; and
  • advance your knowledge and skills as a home inspector.

There are more defects in the House of Horrors® than most inspectors will find during their entire career. This is the ultimate training experience for the home inspector.

Boost Your Brand & Marketing

Director of Member Marketing - Jesse Langer

Director of Marketing Jesse Langer will be available at the Member Marketing Department to help you get all of your marketing professionally designed.

As a home inspector in a competitive market, you need a professional-looking image, and InterNACHI's Member Marketing Team is here to help you with a one-on-one consultation. They will design a business logo for you (or redesign your existing logo), and design your business card, brochure, flyer, etc. (including text). And all of the design work is free for members. Check out some of the recent marketing work we've done for members.

Have Us Make Your Free Promo Video

InterNACHI Video Studio - James Halterman

Visit the Video Studio and ask James Halterman about the free video production services that InterNACHI® provides to members.

We will film, edit and produce a short 30-second video for you to upload to your YouTube Channel, embed on your business website, and share on social media. Just come in, stand in front of the camera, and talk about how your inspection business is the best. We'll produce a professional video for you, and it's all free. Watch a sample promo video that we filmed, edited and produced for one of our members for free.

Get Free Inspector Marketing Items

InterNACHI Marketing Material

While you're here, pick up an armful of free marketing materials. We have:

  • free flyers,
  • free brochures,
  • free rack cards,
  • free home maintenance books, and
  • free badges and decals.

All of these can help you promote your inspection services and certifications. We have free marketing materials for Infrared-Certified® members, our Buy-Back Guarantee, the Owens Corning Roof Data Technician Program, all of our inspector certifications, IAC2 Certifications, credit card payments, the monthly Homeowner Newsletter, InterNACHI's Agent Indemnification Protection, the Builder's Warranty Inspection, "Monster-Free" Inspection Certificates, the Home Energy Score, InterNACHI's home maintenance book, the $10,000 Honor Guarantee, Certified Professional Inspector® designation, and more.

Become a Certified Master Inspector®

Certified Master Inspector

Certified Master Inspectors (CMIs)® are the best inspectors in the world. Certified Master Inspector® is a professional designation available to all qualifying inspectors who wish to become board-certified by the Master Inspector Certification Board.

All CMIs® are experienced, dedicated to education, and have a proven record in the inspection industry.

Learn more about becoming a CMI®.

Shop at Inspector Outlet

InterNACHI Inspector Outlet

Shop for everything you need at Inspector Outlet, InterNACHI's e-commerce partner, which has its store located inside InterNACHI® Headquarters.

Test-drive over $20,000 worth of inspection tools, such as:

InterNACHI® members get special pricing and discounts when they shop in person at Inspector Outlet!

Read Inspection Reference Books & Textbooks

InterNACHI Inspection Library

We have a massive Inspection Library, including InterNACHI's own textbooks based on our online courses. So, you can read through any textbook prior to purchasing it.

This library is a great resource for researching modern building codes and standards, illustrated dictionaries, and code commentaries. We have books on every system of the home, as well as commercial properties. We also have the most comprehensive section on stucco and EIFS. There's even a section on sales and marketing tips for home inspectors.

Grab some coffee, sit by the fireplace, and enjoy a book!

Get Your Picture Taken in Nick's "Oval Office"

InterNACHI Oval Office Set

Graduates can get a picture taken of themselves receiving their Certificate of Completion in Nick's "Oval Office." 

Meet with Nick


Visit InterNACHI® Founder Nick Gromicko in his specially built "Oval Office" and talk business strategies and how to gain a competitive advantage. Bring some coffee and your notebook.

You may want to first read his recent book, STACKS: A Home Inspector's Guide to Increasing Gross Revenue.

Meet with Ben


Meet with InterNACHI® Chief Academic Officer Ben Gromicko and the Education Team.

Have questions about attaining certifications or Continuing Education? Don't know what your state requires? Come by and speak with Ben.

Register for Training


While you're here, register for training at the House of Horrors®. We provide live, hands-on training every month.

See below testimonial from our Become a Home Inspector Training!

InterNACHI's Inspector Hall of Fame

InterNACHI's Inspector Hall of Fame - Roy Cooke Roy Cooke

Read about the many members who've made important contributions to the inspection industry over the years.

InterNACHI's Inspection Museum

InterNACHI's Inspection Museum

Explore inspection history!

Visit the InterNACHI Home Inspection Museum and check out the first battery-operated flashlight, the oldest and most expensive infrared camera, and much more.

Electrical Panel from Hell

InterNACHI Electrical Panel from Hell

Nick and his staff have constructed a problem panel and installed it in the House of Horrors®.  This is a must-see for inspectors who want to be better prepared to spot problems with residential electrical service panels, including service size, wiring, connections, and issues with the panel's labeling and exterior.

....and much more!

Get Certified

InterNACHI Education Team - Tanya Nascimento

Director of Education Tanya Nascimento and the rest of the Education Team will help you get certified. Each certification comes with its own logo that you can use in your marketing and on your website.

InterNACHI® provides more than 45 different inspector certifications, including Certified Professional Inspector®.

Get Legal Advice

InterNACHI Legal Office - Mark Cohen

Schedule some time with InterNACHI® General Counsel Mark Cohen, who has an office at InterNACHI® Headquarters.

Ask Mark about InterNACHI's free Issue Resolution Service and the free Online Inspection Agreement System for all InterNACHI members. Contact Mark at