Washington State requires all construction contractors to register with L&I. State law also requires construction contractors to be bonded and insured to protect the public.
Once registered, contractors can bid, advertise, and perform construction work. This can include constructing, remodeling, repairing and demolishing buildings, roads and other real property. If you are a new construction contractor, or thinking about getting registered, watch the Contractor Overview module, to better understand the requirements.
There are two classifications of construction contractors in the state:
Working without registering as a contractor in Washington carries substantial penalties and fines.
L&I regulates 63 specialties that each require contractor registration. These specialties include roofing, painting, HVAC, tree removal, mobile home set-up, and dozens more.
How to register
To register with L&I as a contractor, you must:
The order you complete these steps can affect how quickly you can complete the registration process.
For the fastest and simplest registration process, we recommend this three-step process:
If you are unsure which business structure you should use, see our guide, Applying for Your Washington Business License: A Step-by-Step Guide (F101-079-000), or visit business.wa.gov for in-depth information on starting and structuring your business.
To register as a contractor, you will need to purchase:
Your bond and insurance must use your exact business name, and L&I must be listed as a certificate holder for your liability insurance. If you are unsure how to purchase your surety bond and insurance, contact a licensed insurance agent.
At your local L&I office, our customer service representatives can help you register your business and complete your application. To avoid unnecessary delays, you will need to have the following:
You can mail your completed, signed, and notarized Application for Contractor Registration (F625-001-000) to the address below along with:
Contractor Registration
P.O. BOX 44450
Olympia, WA 98504-4450
Note: All signatures on your application must be original and notarized. We cannot accept a copy of your application.
Completed applications submitted by mail are currently taking 3-4 weeks after receipt to process and activate your registration. Once your business is registered, it will be listed in our Verify a Contractor, Tradesperson, or Business tool. You will receive a registration card in about 2 weeks.
If any of the required information is missing or incorrect, we will contact you to help complete your registration.
If your business has not had any changes, such as changing partners, a business name or structure change, or changing your specialty, you can renew using one of the options below. If you need to make changes or update your business information, see the instructions below.
Before you complete your renewal, use our Verify a Contractor, Tradesperson, or Business tool to make sure that your:
To renew online, you will need the following information:
Review the information on the contractor registration renewal card you received in the mail. If your information is correct, and your required documentation is current, mail the renewal card with a check or money order in the amount of $132.60 to:
Department of Labor & Industries
Contractor Registration Section
PO Box 44450
Olympia WA 98504-4450
Bring your renewal card to your nearest local L&I office. You can pay by cash, check, money order, or credit/debit card.
If you have a new bonding company/bond amount or a new insurance company or coverage amount since you last renewed, you will need to update your information before you renew. Your bond amount cannot be reduced for 2 years if you switch from a general to a specialty contractor.
To renew your registration, we must have:
To renew your insurance, we must have:
Bring all required documents and your renewal payment of $124.70 to your local L&I office, or mail it to:
Department of Labor & Industries
Contractor Registration Section
PO Box 44450
Olympia, WA 98504-4450
Note: Include your registration renewal card with your paperwork. This will help us quickly process your renewal.
We suspend a registration when the registration requirements are not met, such as a bond or insurance cancelling or expiring or an unsatisfied judgment.
When we suspend a registration, we will notify you by both certified and first-class mail within 2 days of the suspension. The letter will tell you what you need to do to reinstate your registration.
You may reinstate your registration online or in person. To reinstate, you must:
By reinstating online, your registration will show as active as soon as you make your payment.
You may bring the required documents and payment to your local L&I office. We accept cash, checks, money orders and credit/debit cards.
You may also mail the required documents and payment (check or money order) to:
Washington Department of Labor & Industries
Contractor Registration Section
PO Box 44450
Olympia WA 98504-4450
After you've registered, you must use your contractor registration number on all your business communications.
By law, when you advertise, solicit bids or offer to perform work, you must always include your contractor registration number. This includes business cards, Yellow Page ads, newspaper ads, internet ads, estimates and bid proposals.
Check-out our contractor marketing cards. Complete the cards with your registration information, print them, and provide a card when submitting a bid. These cards will educate your customer about contractor registration, and help them verify your status and the status of any contractors who may have provided them a bid for work.
General and specialty contractors must provide a Continuous Contractor’s Surety Bond (F625-003-000). Surety bonds are available through a bonding company or insurance agency. Premiums vary with each company, as do the requirements for being bonded.
The bond must include the bond number and exact business name.
The alternative to a bond is an assigned bank account. An Assignment of Account (F625-008-000) must be on this form (also available at L&I local offices). You may post the required amount in the form of cash, a certificate of deposit, time deposit, or money market account in a bank, savings and loan association or credit union with a branch in Washington.
Get general proof of liability insurance coverage from your insurance agent.
NOTE: Originals of your bond and insurance will be required to complete your registration.
Model disclosure
You must provide this Model Disclosure Statement Notice to Customer (F625-030-000) for all residential jobs of $1,000 or more and for commercial projects of $1,000 to $60,000.
Safety
Some activities have licensing requirements that are in addition to contractor registration.
Lead-based paint
Contact the Washington State Dept. of Commerce Lead Paint Program at 360-586-5323(LEAD), or visit www.commerce.wa.gov/lead, before renovating or remodeling activities in pre-1978 residential or child-occupied facilities, to ensure compliance with applicable lead regulations.
Pesticides
If you will be applying pesticides, contact the Washington State Dept. of Agriculture, Licensing and Recertification Program, at (877) 301-4555 or license@agr.wa.gov, to ensure you are in compliance with state and federal pesticide law, or visit https://agr.wa.gov.