Virginia Insulation and Weather Stripping (INS) Contractor License

The Insulation and Weather Stripping (INS) Contractor License allows you to do the following work:

  • Insulating media
  • Temperature control
  • Sound control

It does not include the insulation of mechanical equipment and ancillary lines and piping.

Class A applicants are required to take and pass the General, Virginia, and Advanced parts. Class B applicants must complete the General and Virginia parts of the examination. For Class C licenses, applicants are only required to pass the trade exam.

How to Get the Insulation and Weather Stripping (INS) Contractor’s License in Virginia?

  1. Have a business
  2. Choose the desired classification:
    • Class A: No monetary limitations
    • Class B: Limited to contracts/projects of less than $120,000, with the total amount of all contracts/projects performed in a twelve-month period remaining below $750,000
    • Class C: Limited to contracts/projects of less than $10,000, with the total amount of all contracts/projects performed in a twelve month period remaining below $150,000
  3. Meet the classification requirements:
    • Be at least 18 years old
    • Be a full-time employee or manager of a business
    • Complete a basic business course approved by the board
    • Be approved for the examination or have been exempt from the exam required by § 54.1-1106 of the Code of Virginia
    • A Class A license requires a minimum of five years of experience, Class B requires a minimum of three years, and Class C requires two years in the chosen classification or specialty
    • Provide the following information about the firm: the members of the responsible management, the designated employee, and the qualified individual for the firm:
      • Send financial information. Aside from any property owned as tenants by the entity, the firm shall state a net worth or equity of $45,000 for Class A and for Class B, any property with a net worth or equity of $15,000 or more
      • Submit information on outstanding tax obligations, past debt, defaults on bonds pending, or past bankruptcies for the past five years
      • Report any monetary penalties, suspensions, fines, revocations, or surrender of a license in connection with disciplinary action
      • Inform all non-marijuana misdemeanor convictions within three years of the date of application
      • Inform of all felony convictions ever occurred in life
  4. Complete a pre-licensure education course from one of the DPOR-approved providers. For more information on the pre-approval process, contact the Virginia Board of Contractors:
    • By phone: 804-367-8511
    • By email: This email address is being protected from spambots. You need JavaScript enabled to view it.
  5. Fill out and submit a completed application, as well as an experience verification form and send them to the DPOR with the corresponding fee
  6. Expect a response from the department, which can take up to 30 days
  7. Be pre-approved and register for the PSI© exam by mail or online
    • If applying by phone, contact 855-340-3910
    • If applying by mail, send the application along with the required fee to 3210 East Tropicana Las Vegas NV-89121
    • If applying by fax, send the registration form to this number: (702) 932-2666, along with a credit card number and expiration date
  8. Take and pass both the trade examination and the Designated Employee A/B exam
  9. If approved, a contractor license will be issued by the DPOR and sent via mail to the address listed on the application

Note that to acquire this license, pre-approval is required, and the examination must be passed.

Virginia Insulation and Weather Stripping (INS) Contractor License Exam Prep Courses

Virginia Insulation and Weather Stripping (INS) Contractor License Exams

Below is all the information related to the trade and Designated Employee Class A/B exams, including the official reference lists.

Virginia Insulation and Weather Stripping (INS) Contractor Trade Exam

  • Testing Method: Computer-based testing
  • Testing Company: PSI©
  • Number of Questions: Multiple choice
  • Types of Questions: 40
  • Time Allowed: 90 Minutes
  • Minimum Passing Score: 28 Questions
  • Subjects Involved (No. of Questions):
    • General Knowledge and Theory (10)
    • Plan Reading, Materials, Estimating, and Take-Offs (4)
    • Spray-On Application (4)
    • Batt/Roll Insulation (4)
    • Blown or Loose-Fill Insulation (3)
    • Rigid-Board and Reflective Insulation (2)
    • Ventilation (3)
    • Vapor Retarders (4)
    • Safety (6)
  • PSI© Insulation and Weather Stripping (INS) Official Content Outline

Virginia Insulation and Weather Stripping (INS) Contractor Designated Employee Class A/B Exam

  • Testing Method: Open book
  • Testing Company: PSI©
  • Number of Questions: 98
  • Types of Questions: Multiple choice
  • Time Allowed: 208 Minutes
  • Minimum Passing Score:
    Virginia Portion (18 out of 24)
    General Portion (35 out of 50)
    Advanced Portion (17 of 24)
  • Subjects Involved (No. of Questions):
    • Virginia Portion (24)
      • Regulation of Contractors (7)
      • Board Rules and Regulations (5)
      • Building Codes (5)
      • Transaction Recovery Fund (5)
      • Virginia Erosion and Sediment Control Regulations (2)
    • General Portion (50)
      • Business Organization (2)
      • Estimating and Bidding (10)
      • Contract Management (10)
      • Project Management (7)
      • Risk Management (3)
      • Safety (5)
      • Labor Laws (3)
      • Financial Management (5)
      • Federal and State Taxes (4)
      • Lien Laws (1)
    • Advanced Portion (24)
      • Estimating and Bidding (1)
      • Contract Management (4)
      • Project Management (1)
      • Risk Management (2)
      • Safety (2)
      • Labor Laws (4)
      • Financial Management (5)
      • Federal and State Taxes (4)
      • Lien Laws (1)
  • PSI© Designated Employee Class A/B Official Content Outline

Virginia Insulation and Weather Stripping (INS) Contractor Book Set

This set of books includes all required references for the Insulation and Weather Stripping (INS) and Designated Employee Class A/B exams. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.

  • VIRGINIA INSULATION AND WEATHER STRIPPING (INS) - BOOK SET WITHOUT TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $416.01
  • VIRGINIA INSULATION AND WEATHER STRIPPING (INS) - BOOK SET WITH TABS INCLUDES ALL BOOKS FOR TRADE AND BUSINESS EXAMS

    Sales price: $466.01

Virginia Insulation and Weather Stripping (INS) Contractor Exam Books

Books Allowed in Testing

Virginia Insulation and Weather Stripping (INS) Designated Employee Class A/B Exam Books

Books Allowed in Testing