CONTRACTOR LICENSE
INFORMATION AND FORMS
Last Update: October 17, 2018
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This information packet is intended to provide you with all of the information and forms
required to become a Licensed Contractor in the City of Thornton. If, after having
reviewed this information, you have any questions please do not hesitate to call us. We
are here to assist you in the successful completion of your projects.
Applicability
The City of Thornton requires all contractors involved in the construction, alteration,
remodeling, repairing or equipping of buildings or other structures; or performing in the
installation of underground utilities or construction of roads and streets in the City and
on all City-owned water, sewer and storm drainage facilities, to be licensed as a
contractor. Homeowners doing work on their personal private residence are not
considered contractors and are not required to obtain a contractor license.
Classification
Applicants for Class A General, Class B Building, Class C Residential, Class D
Mechanical and Class D Roofing License are required to provide proof that they are
qualified to perform the work under that License Class. The City currently accepts a
current valid contractor license from a reciprocating jurisdiction or a Contractor License
Certification from the International Code Council for the currently adopted code. (For
more information on ICC Contractor Certification go to
www.iccsafe.org/Certification/Pages/default.aspx) Please see the attached Contractor
License Table for the requirements of each License and the Contractor License
Reciprocating Jurisdiction Table for a list of jurisdictions that we reciprocate with.
Plumbing and Electrical Contractors are required to provide us with a copy of their
current valid State of Colorado Contractor’s License and their Master’s License.
Manufactured Home Installers are required to provide their State of Colorado
Manufactured Home Installers License.
Applicants with out of State Contractor License are reviewed on a case by case basis.
Sole Proprietors
Contractors who are sole proprietors of their business are required to fill out and submit
an Affidavit of Eligibility form and provide an approved form of identification in
accordance with CRS 24-34-107. Please see Attachment A Secure and Verifiable
Documents for a list of approved Identification. Sole proprietors are required to apply for
the license in person. We do not accept online, mailed, faxed or e-mailed applications
from sole proprietors.
Insurance
The City of Thornton requires the following insurance information be provided:
Insurance Company Name (General Liability), Policy Number and Policy Expiration
Date. We do not require a certificate. Enter the information in the application.
Expiration
Contractor Licenses are valid for one (1) year from the issue date and are renewable
any time within one year of expiration. Electrical Contractor Registration is valid for two
(2) years. Should the license or registration not be renewed within one year of expiration
you will be required to provide information as required for a new license.
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Permission Form
The enclosed Sub-Contractor Permission Form is required for the plumbing, electrical
and mechanical contractors working under a general contractor. This form authorizes
the general contractor to list you as a sub-contractor on a specific project. A new form is
required for each new project unless you choose to list the general contractor on your
license as authorized to place you on permit applications. The Sub-Contractor
Permission Form is not required to obtain a license.
Fees and Application
Contractor License fees are as listed on the attached Contractor Table. Fees are the
same for new licenses and renewed licenses. Contractor license applications are
accepted at the Building Permit counter or via mail, or e-mail with payment made with a
credit card over the phone. The only exception to this is for sole proprietors who are
required to appear in person to apply for a license in accordance with CRS 24-34-107.
A Contractor License can be applied for and paid for online at:
Online Contractor License Application.
Responsibilities
Under the provisions of Thornton City Code Section 10-121 a holder of a contractor
license has the following responsibilities:
1. Provide minimum safety measures and equipment to protect workers and the
public in general as prescribed by the Building Code.
2. Observe any other City, County or State ordinance or statute prescribing
measures for the safety of workers and of the public.
3. Present license cards when requested by the Chief Building Official.
4. Obtain a building permit when a building permit is required.
5. Construct faithfully, without substantial departure from or disregard of, drawings
and specifications when such drawings and specifications have been filed and
approved by the Building Inspection Division and a permit has been issued for
such, unless such changes are approved by the Building Inspection Division.
6. Complete all work authorized on the permit issued under the authority of the
Building Code, unless good cause is proven.
7. Obtain inspection services when the inspection services are required by the
Building Code.
8. Pay any fee assessed under the authority of the Building Code.
9. Obey any order issued under the authority of the Building Code.
10. Provide honest and factual information on all applications for permits.
Contact Information:
City of Thornton Phone: 303-538-7250
Building Inspection Division Fax: 303-538-7650
9500 Civic Center Drive E-Mail: buildings@cityofthornton.net
Thornton, CO 80229 Website: www.cityofthornton.net
Contractor License Table
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Class
Fee
Requirements
Allowed to Perform
A
General
Contractor
$200
Valid license with reciprocating jurisdiction or
ICC W11 National Standard General Building
Contractor (A)
Unlimited
B
Building
Contractor
$150
Valid license with reciprocating jurisdiction or
ICC W12 National Standard Building Contractor
(B)
Unlimited, except for
Type I Construction,
and limited to three
stories in height
C
Residential
Contractor
$100
Valid license with reciprocating jurisdiction or
ICC W13 National Standard Residential
Building Contractor (C)
Residential
D
Specialty
$75
No Requirements
Specialty
Contractor
D
Manufactured
Home Installer
$75
Valid State of Colorado Certified Installer
Manufactured Home
Installation
D
Plumbing
$75
Must hold a valid State of Colorado Plumbing
Contractor and Master Plumber License
Plumbing and Gas
Piping Installation
D
Electrical
Registration
No Fee
Must hold a valid State of Colorado Electrical
Contractor and Master Electrician License
Electrical Installation
D
Mechanical
$75
Valid license with a reciprocating jurisdiction or
ICC W29 National Standard Master Mechanical
Unlimited
Mechanical
Installation including
water heaters
D
Roofing
$75
Valid license with a reciprocating jurisdiction or
ICC W14 National Standard Roofing
Contractor/Subcontractor
Roofing and
Reroofing of
structures
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Contractor License Reciprocating Jurisdictions
1
Jurisdiction Class A Class B Class C
Class D
Mechanical
Class D
Roofing
Arvada X X X X X
Aurora X X X X X
Boulder X X X X
Centennial X X X
Commerce City X X X
Craig X X X
Denver X X X X X
Englewood X X X
Fort Collins X X X X X
Littleton X X X
Longmont X X X X
Loveland X X X
Mesa County (Grand
Junction)
X X X
Park County X X X
Pikes Peak Regional
(Colo. Springs)
X X X
Sterling X X X
Wheat Ridge X X X
1
See below for more information on reciprocal license
Required ICC Test
W11 National Standard General Building Contractor (A) 2012 Code Class A License
W12 National Standard Building Contractor (B) 2012 Code Class B License
W13 National Standard Residential Building Contractor (C) 2012 Code Class C License
W29 National Standard Master Mechanical 2012 Code Class D Mechanical
W14 National Standard Roofing Contractor/Subcontractor 2012 Code Class D Roofing
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Reciprocal Licensing for the City of Thornton
Thornton Class A General Contractor License
Denver License General Building Contractor A
Arvada License Class I-B Builder’s Unlimited
Aurora License Class A
Fort Collins License Class A or Class B
ICC Test W11 National Standard General Building Contractor (A)
Thornton Class B Building Contractor License
Denver License Building Contractor B
Arvada License Class I-B Builder’s Unlimited
Aurora License Class B
Fort Collins License Class C1
ICC Test W12 National Standard Building Contractor (B)
Thornton Class C Residential Contractor License
Denver License Residential Building Contractor C
Arvada License Class II-B Builder’s License
Aurora License Class C
Fort Collins License Class C2 or D1
ICC Test W13 National Standard Residential Building Contractor (C)
Thornton Class D Mechanical Contractor License
Denver License Mechanical Contractor Class A
Arvada License Class VII-M Mechanical License
Aurora License HVAC Contractor License
Fort Collins License HVAC (Commercial)
Longmont Class M, Mechanical
Boulder Class A, Mechanical
ICC Test W29 National Standard Master Mechanical
Thornton Class D Roofing Contractor License
Denver License Roof Covering/Waterproofing Contractor
Arvada License Class IX-R Builder’s Roofing License
Aurora License Roofing D-2
Fort Collins License Roofing (Conventional or Plus)
ICC Test W14 National Standard Roofing Contractor/Subcontractor
* For information on ICC Contractor License Certification go to www.iccsafe.org
Building Inspection Division 9500 Civic Center Dr. Thornton, Colorado 80229
Office 303-538-7250 e-mail buildings@cityofthornton.net 10-17-18
CONTRACTOR LICENSE APPLICATION
NEW RENEWAL
*For additional information and details on requirements, refer to the Contractor License Information packet
Company Information (Please Type or Print Legibly)
Business Name: Contractor Number: LCC
Insurance Co Name (Gen. Liability): Policy # Exp. Date:
FOR RENEWALS ONLY: Check here if you have verified your business information in our system and no changes are needed
Business Address: City: State: Zip:
Mailing Address: City: State: Zip:
Business Phone: Fax: Cell:
Primary Business E-Mail Address:
Select one of the following: Corporation LLC Non-Profit Partnership Sole Proprietor (MUST APPLY IN PERSON)*
Business Officer/Member/Partner: Please provide the name and address of one officer, member or partner:
First Name: MI: Last Name: Title:
Check here if contact information is same as above
Address: City: State: Zip:
Phone: Fax: Cell:
E-Mail Address:
Company Representative Name (if different from above): Phone:
License Information Checkmark next to the license(s) requested
Class A General Contractor Unlimited $200.00 Test or reciprocal license COPY REQUIRED
Class B Building Contractor Unlimited except Type I A & B, Limited to 3 stories $150.00 Test or reciprocal license COPY REQUIRED
Class C Residential Contractor $100.00 Test or reciprocal license COPY REQUIRED
Class D Mechanical $75.00 Test or reciprocal license COPY REQUIRED
Class D Plumbing $75.00 State Contractor and Master COPY REQUIRED
Class D Plumbing/Mechanical combo license $75.00 (see plumbing and mechanical requirements above)
Class D Roofing $75.00 Test or reciprocal license COPY REQUIRED
Class D Roofing/Siding combo license $75.00 (see roofing requirements above, none for siding)
Class D Electrical Registration no fee State Contractor and Master COPY REQUIRED
Class D Other: $75.00 No Requirement
I hereby confirm that the above information is true to the best of my knowledge and that I will notify the Building Inspection Division of any
changes to the status, company name or address in accordance with Section 10-122 of the Thornton City Code. I also confirm that I have
read and understand the responsibilities of a license holder as stated in Section 10-121 of the Thornton City Code.
Company Representative SIGNATURE Date
CONFIDENTIAL
Upon a public request for this document a requestor release form shall be executed or this information shall be redacted.
Driver’s License Number: Issuing State: Date of Birth:
click to sign
signature
click to edit
Building Inspection Division 9500 Civic Center Dr. Thornton, Colorado 80229
Office 303-538-7250 e-mail: buildings@cityofthornton.net
8/17/18
SUB-CONTRACTOR PERMISSION FORM
I, _________________________, authorized representative for ,
print your name sub-contractor company name
contractor #LCC_______________ , hereby give permission for _______________________________
General Contractor for the project or homeowner name
to list me or my company as a Sub-Contractor on the following project:
Project Name: Permit No:
Project Address:
Scope of Work:
Signature Date
(For Commercial Projects Only)
COMMERCIAL PROJECT BID STATEMENT
Company Name: Phone:
Contact Person: Phone:
E-Mail Address:
PROJECT BID AMOUNT: $
Signature: Date:
Notary only required for bid statement
State of ________ County of ___________
Signed and sworn/affirmed before me on _______________20___
by .
(Notary’s official signature)
(Commission Expiration) NOTARY STAMP/SEAL
Building Inspection Division 9500 Civic Center Dr. Thornton, Colorado 80229
Office 303-538-7250 e-mail buildings@cityofthornton.net
IMPORTANT INFORMATION
Starting January 1, 2007, pursuant to H.B. 06S-1009, C.R.S24-34-107, only persons lawfully present in
the United States will be issued a license. Therefore, ALL applicants for original licensure or licensees
renewing a current Colorado license after January 1, 2007 are required to complete and sign the
following Affidavit of Eligibility, and may also be required to provide valid identification when requested.
AFFIDAVIT OF ELIGIBILITY
Section A: LAWFUL PRESENCE in the United States
I, (please print your full name) , swear or affirm under
penalty of perjury under the laws of the State of Colorado that (check 1, 2, or 3 below):
1. I am a US citizen.
2. I am not a US citizen but am lawfully present in the US as evidenced by one of the following, (check
a, b, or c):
a. I am a qualified alien as defined in 8 U.S.C. sec 1641.
b. I am a nonimmigrant under the “Immigration and Nationality Act”, Federal Public Law
82-414 as amended.
c. I am an alien who is paroled into the US under 8 U.S.C. sec.1182 (d) (5).
3. I am a foreign national not physically present in the US under 8 U.S.C. sec 1621 (c) (2) (c) or
employed in the US pursuant to 8 U.S.C. 1621 (c) (2) (a).
Complete documentation must be provided upon request.
Section B: Secure and Verifiable Document. All areas in this section must be completed.
1. Please refer to attachment A (on the reverse of this form) for a list of acceptable secure and verifiable
documents and enter the documentation you have .
2. Please enter the name of the state or federal agency name where this was issued
.
3. What is the document number ?
4. What is the expiration date ?
Section C: Attestation.
I understand that this sworn statement is required by law because I have applied for or hold a
professional or commercial license regulated by 8 U.S.C. sec. 1621. I understand that state law requires
me to provide proof that I am lawfully present in the United States when asked as well as submission of
a secure and verifiable document. I may also be required to provide proof of lawful presence.
I understand that in accordance with sections 1808-503 and 18-8-501(2)(a)(I), C.R.S., false Statements
made herein are punishable by law. I state under penalty of perjury in the second degree, as defined in
18-8-503, C.R.S. that the above statements are true and correct.
I am the person identified above and that the information contained herein is true and correct to the best
of my knowledge. I understand that under Colorado law, providing false information is grounds for
denial, suspension or revocation of a license, certificate, registration or permit.
I understand that the above information must be disclosed to the Department of Regulatory Agencies
upon request and is subject to verification.
Signature Date
Colorado License No. and Type(if already licensed):
Building Inspection Division 9500 Civic Center Dr. Thornton, Colorado 80229
Office 303-538-7250 e-mail buildings@cityofthornton.net
Attachment A
Secure and Verifiable Documents
Any Colorado Driver License, Colorado Driver Permit or Colorado Identification Card, expired less
than one year. (Temporary paper license with invalid Colorado Driver License, Colorado Driver
Permit, or Colorado Identification Card, expired less than one year is considered acceptable.)
Out –of-state issued photo Driver’s License or photo identification card, photo drivers permit expired
less than one year.
Valid foreign passport with I-94 or valid Processed For 1551 stamps.
Valid I-94 issued by Canadian government with L1 or R1 status and a valid Canadian driver’s
license or valid Canadian identification card.
Valid 1551 Resident Alien/Permanent Resident card. NO border crosser or USA B1/B2 Visa/BCC
cards.
Valid 1688 Temporary Resident Card, 1688B and 1766 Employment Authorization Card.
Valid US Military ID (active duty, dependent, retired, reserve and National Guard).
Tribal Identification Card with intact photo (US or Canadian).
Certificate of Naturalization with intact photo.
Certificate of (US) Citizenship with intact photo.