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Retrofit Installer Technician

Credentialed Class

Course Description

Retrofit Installer Technician is based on a National Renewable Energy Laboratory/U.S. Department of Energy Job Task Analysis (JTA) of the same name. Students taking this course will gain a basic understanding of building science and the house as a system. They will receive a sample work-scope and follow it from material selection/truck maintenance and loading to implementation of various materials and processes to properly air sealing and insulating a house (whole-house weatherization). The class curriculum is suitable for weatherization crews, retrofit workers, and those seeking a better understanding of weatherization and basic building science. This course is designed to prepare qualified students to take the BPI Home Energy Professional Retrofit Installer Technician certification exam. The majority of the class is spent in our state-of-the-art training labs, practicing whole-house weatherization techniques. Air sealing and insulation installation are only a small portion of the skills that students will learn. Students will get feedback about learning progress by taking online quizzes via our Learning Management System (LMS) throughout the course. Students will take a written test (via our LMS) and hands-on test of weatherization skills that were practiced. Upon successful completion of the tests, each participant will receive a certificate of completion.

  • Select and use the proper safety equipment
  • Introduce students to the skills needed for the retrofit installer technician
  • Understand the basic building science that drives the retrofit upgrade
  • Be able to identify and use the proper materials and tools
  • Use lab experience to give students a practical understanding of the lessons being taught
  • Safety protocols
  • Work-scope verification
  • Material selection/usage
  • Understanding of basic building science
  • Hands-on air sealing

Grading Criteria

The exam consists of two sections: one written and one hands-on. The student must pass each section with an 80% score or higher. If a student does not pass a section, he or she will be allowed to retake that particular section in accordance with CHP Energy Solutions Research and Training's retesting policy.

Note: The BPI Home Energy Professional Retrofit Installer Technician certification is a separate test with an additional fee.



To enroll in this course, students must be 18 or older and pass a Retrofit Installer Technician prerequisite pre-test which assesses their literacy levels and understanding of basic math.



If you are a stakeholder and would like to provide feedback about our course, please use the contact form below.

Energy Solutions

CHP Energy Solutions promotes healthier, safer, more energy efficient built environments by providing energy audits, inspections, energy performance upgrades, and building science education.

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