Washington State Contractor License Types: General vs. Specialty Guide (2024-2026)
Washington State Contractor License Types: General vs. Specialty Guide (2024-2026)
Last updated: March 2025 | Based on RCW 18.27 and WAC 296-200A
Understanding the difference between general and specialty contractor licenses is crucial for both homeowners and contractors in Washington State. This guide explains when each type is required, what work they cover, and how to verify you're hiring the right contractor for your project.
Overview: Two Types of Contractor Registration
Washington State recognizes two main categories of registered contractors under RCW 18.27:
| Type | Bond Required | Scope of Work |
|---|---|---|
| General Contractor | $30,000 | Multiple trades on single project |
| Specialty Contractor | $15,000 | Single trade or specialty |
⚠️ Important: These are registration types, not "licenses" in the traditional sense. Washington uses the term "registration" for contractor authorization under L&I. However, certain trades (electrical, plumbing) require additional licenses beyond registration.
General Contractor Registration
Definition (RCW 18.27.010)
A general contractor is defined as a contractor whose "work requires more than one building trade, craft, or skill on a single project or pursuant to a single building permit."
When General Registration is Required
You need general contractor registration if your business:
- Manages entire construction projects — New home builds, major renovations, additions
- Performs multiple trades — Combines framing, roofing, siding, etc. on one job
- Hires and oversees subcontractors — Acts as the prime contractor
- Pulls permits covering multiple scopes — Building permits with multiple inspections
Bond and Insurance Requirements
| Requirement | Amount |
|---|---|
| Surety Bond | $30,000 (increased July 1, 2024) |
| Public Liability Insurance | $200,000 minimum |
| Property Damage Insurance | $50,000 minimum |
| OR Combined Single Limit | $250,000 minimum |
Examples of General Contractor Work
- Home additions requiring structural, electrical, plumbing, and finish work
- Kitchen or bathroom remodels involving multiple trades
- New construction of any residential or commercial building
- Major renovations affecting multiple building systems
- Deck construction with electrical for lighting
Specialty Contractor Registration
Definition (RCW 18.27.010)
A specialty contractor works in a "single trade, craft, or skill" only. Washington recognizes 63 specialty contractor categories, each covering a specific scope of work.
When Specialty Registration is Sufficient
You can operate with specialty registration if your business:
- Focuses on one trade only — Roofing, painting, HVAC, etc.
- Subcontracts only incidental work — Minor work related to your specialty
- Does not act as prime contractor — Works under general contractors
Bond and Insurance Requirements
| Requirement | Amount |
|---|---|
| Surety Bond | $15,000 (increased July 1, 2024) |
| Public Liability Insurance | $200,000 minimum |
| Property Damage Insurance | $50,000 minimum |
| OR Combined Single Limit | $250,000 minimum |
Complete List of Washington Specialty Categories
Washington recognizes these 63 specialty contractor types (WAC 296-200A-015):
Building Trades (01-20)
| Code | Specialty |
|---|---|
| 01 | Electrical |
| 02 | Painting/wallcovering |
| 03 | Plumbing |
| 04 | Insulation |
| 05 | Steel/iron work |
| 06 | HVAC (heating/cooling) |
| 07 | Floor covering |
| 08 | Sewer/storm drain |
| 09 | Masonry |
| 10 | Carpentry |
| 11 | Drywall |
| 12 | Roofing |
| 13 | Siding |
| 14 | Fence |
| 15 | Sprinkler/fire suppression |
| 16 | Tree service |
| 17 | Landscaping |
| 18 | Concrete |
| 19 | Demolition |
| 20 | Sign installation |
Specialty Trades (21-40)
| Code | Specialty |
|---|---|
| 21 | Cabinet installation |
| 22 | Countertop fabrication |
| 23 | Tile/marble/stone |
| 24 | Swimming pool |
| 25 | Waterproofing |
| 26 | Well drilling |
| 27 | Structural pest control |
| 28 | Glass/glazing |
| 29 | Garage door |
| 30 | Septic systems |
| 31 | Foundation |
| 32 | Excavation/grading |
| 33 | Paving/asphalt |
| 34 | Solar/photovoltaic |
| 35 | Home inspection |
| 36 | Manufactured home setup |
| 37 | Low voltage systems |
| 38 | Fire alarm |
| 39 | Security systems |
| 40 | Elevator/lift |
Additional Specialties (41-63)
Additional categories include: awning installation, chimney services, stucco, deck building, door/window installation, gutter installation, and more specialized trades.
How to Choose the Right Registration Type
Decision Flowchart
Question 1: Does your work typically involve more than one building trade?
- Yes → General Contractor registration required
- No → Proceed to Question 2
Question 2: Do you hire subcontractors for other trades?
- Yes → General Contractor registration required
- No → Proceed to Question 3
Question 3: Do you work under other general contractors only?
- Yes → Specialty Contractor registration may suffice
- No → Consider General Contractor registration
Common Scenarios
| Scenario | Registration Type Needed |
|---|---|
| Roofer replacing shingles only | Specialty (12-Roofing) |
| Roofer doing roof + gutter + siding repairs | General |
| Painter doing interior/exterior paint | Specialty (02-Painting) |
| Painter doing drywall repair + painting | General (or dual specialty) |
| HVAC company installing furnace | Specialty (06-HVAC) |
| HVAC company doing ductwork + electrical | General |
| Kitchen remodeler (cabinets, counters, plumbing, electrical) | General |
The "Incidental Work" Rule
Specialty contractors can subcontract work that is incidental to their specialty without upgrading to general registration (WAC 296-200A-015).
What Qualifies as Incidental
Work is incidental if:
- It's a minor part of the overall project
- It directly supports the primary specialty work
- It doesn't represent a separate trade contract
Examples of Incidental Work
| Primary Specialty | Allowable Incidental Work |
|---|---|
| Roofing | Minor gutter repairs, flashing |
| HVAC | Electrical connections for unit |
| Plumbing | Minor drywall repair at pipe access |
| Flooring | Baseboards and transitions |
| Painting | Minor drywall/texture repair |
What's NOT Incidental
- Work that could stand alone as a separate contract
- Work requiring its own permit
- Electrical or plumbing work requiring licensed journeyman
- Work exceeding 25% of total project value (L&I guidance)
Penalties for Operating Under Wrong Registration
If Specialty Contractor Performs General Work
Under RCW 18.27.020 and 18.27.340:
| Violation | Penalty |
|---|---|
| First citation | $1,200 - $10,000 infraction |
| Continued violation | Gross misdemeanor charges |
| Consumer complaints | L&I investigation, registration suspension |
Other Consequences
- Loss of lien rights — Cannot enforce mechanic's lien
- Cannot sue for payment — Courts won't enforce contracts
- Triple damages liability — Consumer Protection Act exposure
Registration Fees and Timeline
Application Fees (2024-2025)
| Item | Fee |
|---|---|
| Initial registration | $141.10 |
| Biennial renewal | $141.10 |
| Late renewal (1-30 days) | $141.10 + penalties |
| Late renewal (30+ days) | New application required |
Processing Timeline
| Method | Timeline |
|---|---|
| In-person (L&I office) | Same day if documents complete |
| By mail | 3-4 weeks |
| Online renewal | 1-3 business days |
Special Considerations by Trade
Trades Requiring Additional Licenses
Some specialty categories require licenses beyond contractor registration:
| Specialty | Additional Requirement |
|---|---|
| 01 - Electrical | Electrical contractor license + certified electricians (RCW 19.28) |
| 03 - Plumbing | Certified plumbers on staff (WAC 296-400A) |
| 06 - HVAC | EPA 608 certification for refrigerant work |
| 27 - Pest Control | WA Dept. of Agriculture pesticide applicator license |
| 30 - Septic | WA Dept. of Health installer certification |
| 34 - Solar | Electrical contractor license if grid-connected |
| 35 - Home Inspection | Licensed home inspector (RCW 18.280) |
How Homeowners Should Verify
Before Hiring, Check:
☐ Registration status at secure.lni.wa.gov/verify ☐ Registration type matches scope of your project ☐ For multi-trade work, contractor has GENERAL registration ☐ Additional licenses if required (electrical, plumbing) ☐ Bond and insurance are current
Red Flags
- Specialty contractor claiming they can "do it all"
- No registration number on business card/contract
- Unwilling to provide proof of registration
- Says they don't need general registration for multi-trade work
Questions to Ask
- "What type of contractor registration do you have?"
- "What is your L&I registration number?"
- "Do you have the required licenses for this trade?" (electrical, plumbing, etc.)
- "Will you be pulling permits for this work?"
Changing Registration Type
Upgrading from Specialty to General
If your business scope expands, you can upgrade:
- Obtain additional surety bond ($15,000 → $30,000 difference)
- Submit amended registration to L&I
- Pay any applicable fees
- No re-application required if within renewal period
Maintaining Multiple Specialties
A specialty contractor can register under multiple specialty codes without upgrading to general, as long as they don't combine those trades on single projects requiring multiple permits.
Resources
- Verify Registration: secure.lni.wa.gov/verify
- L&I Contractor Section: 1-800-647-0982
- RCW 18.27 (Contractor Registration): app.leg.wa.gov/rcw/default.aspx?cite=18.27
- WAC 296-200A (Contractor Rules): apps.leg.wa.gov/wac/default.aspx?cite=296-200A
- Specialty Categories: lni.wa.gov/licensing-permits/contractors/hire-a-contractor/specialty-categories
This guide is for informational purposes only and does not constitute legal advice. For specific legal questions, consult a Washington-licensed attorney.