The Complete Washington Homeowner's Guide to Hiring a Contractor

The Complete Washington Homeowner's Guide to Hiring a Contractor

Your step-by-step checklist for finding, vetting, and working with contractors in Washington State


Before You Start: Know Your Project

Before contacting any contractor, answer these questions:

  • What exactly needs to be done?
  • What's your realistic budget range?
  • What's your ideal timeline?
  • Do you need permits? (Most structural, electrical, and plumbing work does)
  • Are you flexible on materials, or do you have specific requirements?

💡 Pro Tip: The more specific you are about your project, the more accurate quotes you'll receive.


Step 1: Find Potential Contractors

Where to Look

Recommended Sources:

  • Washington State contractor directories (like this one!)
  • Personal referrals from neighbors and friends
  • Local building supply stores (they know who does good work)
  • L&I's verified contractor database

⚠️ Use With Caution:

  • General online review sites (reviews can be manipulated)
  • Door-to-door solicitors (legitimate contractors rarely cold-call)
  • "Too good to be true" deals

How Many Quotes?

Get at least 3-5 quotes for any significant project. This gives you:

  • A realistic price range
  • Different perspectives on the work
  • Comparison of professionalism and communication

Step 2: Verify Credentials

The Non-Negotiables

Before ANY meeting, verify these online at secure.lni.wa.gov/verify:

  • Active Registration: Status must show "ACTIVE" (not expired, suspended, or revoked)
  • Bond Status: Current and valid surety bond
  • Insurance: Active general liability insurance on file
  • Workers' Comp: Compliant (or properly exempt)
  • Registration History: No major complaints or violations

For Specialty Trades

Trade Additional Verification
Electricians Verify electrical contractor license + journeyman on staff
Plumbers Verify plumbing certificate
Roofers Verify roofing endorsement (for projects over $1,000)
HVAC Ask about EPA 608 certification

Document What You Find

Print or screenshot the verification results. Save them with your project documents.


Step 3: Questions to Ask Every Contractor

During Initial Contact

  1. "Are you registered with Washington L&I?"
  2. "What's your registration/UBI number?"
  3. "How long have you been in business?"
  4. "Do you carry liability insurance? What are your limits?"
  5. "Will you pull the required permits?"
  6. "Have you done projects similar to mine? Can I see examples?"

During the Estimate Visit

About Their Business:

  • "Who will be on-site daily? Employees or subcontractors?"
  • "Are your subcontractors also registered and insured?"
  • "Who is my point of contact during the project?"
  • "How do you handle change orders?"

About Your Project:

  • "What's the realistic timeline from start to finish?"
  • "What could cause delays?"
  • "Will you be working on other projects simultaneously?"
  • "What's included in your quote? What's not?"

About Materials:

  • "What brands/products do you recommend and why?"
  • "Where do you source materials?"
  • "Can I provide any materials myself?"

About Payment:

  • "What's your payment schedule?"
  • "Do you require a deposit? How much?"
  • "What forms of payment do you accept?"

References

Ask for and actually call at least 3 references:

  • Similar project type
  • Similar project size/budget
  • Completed within the last 1-2 years

Questions for References:

  1. "Would you hire them again?"
  2. "Did they stay on budget? On schedule?"
  3. "How did they handle problems that came up?"
  4. "Were they easy to communicate with?"
  5. "Did they clean up after themselves?"

Step 4: Red Flags to Watch For

Immediate Deal-Breakers 🚩

Run away if the contractor:

  • ❌ Won't provide their L&I registration number
  • ❌ Can't show proof of insurance
  • ❌ Asks for more than 20% down (or full payment upfront)
  • ❌ Offers a big discount for paying in cash
  • ❌ Pressures you to sign immediately
  • ❌ Says permits "aren't necessary" for your project
  • ❌ Has no physical business address
  • ❌ Won't provide a written contract

Warning Signs 🟡

Proceed with caution if:

  • Quote is significantly lower than all others (30%+ below average)
  • They can "start tomorrow" on a major project
  • Communication is poor from the start
  • They're evasive about subcontractors
  • They have no online presence whatsoever
  • The company is very new (under 2 years)
  • They've changed business names recently

Trust Your Gut

If something feels off, it probably is. A good contractor understands that trust takes time to build and won't pressure you.


Step 5: Understanding the Quote

What Should Be Included

A professional quote should contain:

Contractor Information:

  • Company name, address, phone
  • Registration/license numbers
  • Contact person name

Scope of Work:

  • Detailed description of ALL work to be performed
  • Specific materials (brands, models, quantities)
  • What's explicitly NOT included

Pricing:

  • Line-item breakdown (not just a lump sum)
  • Labor costs
  • Material costs
  • Permit fees
  • Contingency allowance (if applicable)

Timeline:

  • Estimated start date
  • Project duration
  • Milestones for payment

Terms:

  • Warranty information
  • Payment schedule
  • Validity period for the quote

Comparing Quotes

Don't just compare the bottom line. Consider:

Factor Weight
Total Price 30%
Detailed Scope 20%
Timeline 15%
Contractor Reputation 20%
Communication Quality 15%

💡 The cheapest bid often isn't the best value. Factor in quality, reliability, and warranty.


Step 6: The Contract Essentials

Must-Have Elements

Your written contract should include:

  • Full legal names of all parties
  • Contractor's registration number
  • Complete scope of work (attach detailed specs)
  • Materials specifications (brands, colors, models)
  • Total contract price (or not-to-exceed amount)
  • Payment schedule tied to milestones
  • Start and completion dates
  • Permit responsibilities (who pulls them, who pays)
  • Change order process (must be in writing)
  • Warranty terms (workmanship AND materials)
  • Insurance requirements
  • Dispute resolution process
  • Cancellation clause (3-day right to cancel in WA)
  • Cleanup responsibilities
  • Signatures and dates

Washington-Specific Requirements

Under Washington law (RCW 18.27), your contract MUST include:

  1. Contractor's registration number
  2. Statement about the contractor's bond
  3. Notification of your right to check registration status
  4. 3-day cancellation notice for door-to-door sales

What to Avoid

Never sign a contract that:

  • ❌ Is handwritten or vague
  • ❌ Has blank spaces to "fill in later"
  • ❌ Doesn't specify materials
  • ❌ Requires signing immediately
  • ❌ Waives your legal rights
  • ❌ Makes you responsible for permits

Step 7: Payment Best Practices

Recommended Payment Structure

Phase Typical Payment Purpose
Deposit 10-20% Materials ordering
Start of Work 25-30% Mobilization, demolition
Midpoint 25-30% Progress milestone
Near Completion 15-20% Finishing work
Final 10-15% After final inspection/walkthrough

Payment Rules

DO:

  • Make payments by check or credit card (creates paper trail)
  • Pay only after work is completed to your satisfaction
  • Hold final payment until ALL work is done, inspected, and you're satisfied
  • Get lien releases with each payment

DON'T:

  • Pay cash (no record = no recourse)
  • Pay more than 20% upfront for most projects
  • Pay ahead of work completed
  • Make the final payment until punch list is complete

Lien Protection

When you pay a contractor, suppliers and subcontractors can still file liens against your property if they weren't paid. Protect yourself:

  1. Request lien releases with each progress payment
  2. Verify subcontractors are paid before final payment
  3. Consider joint checks made out to contractor AND supplier
  4. For large projects: Use an escrow account

Step 8: During the Project

Stay Engaged (But Not in the Way)

  • Conduct regular check-ins (weekly for large projects)
  • Document progress with photos
  • Address concerns immediately
  • Approve any changes IN WRITING
  • Keep all receipts and communication

Change Orders

Changes happen. Handle them correctly:

  1. Get it in writing before work proceeds
  2. Include: Description, cost impact, timeline impact
  3. Both parties sign the change order
  4. Keep copies with your contract

Problem Resolution

If issues arise:

  1. Communicate calmly and document the issue in writing
  2. Give contractor opportunity to fix the problem
  3. Reference the contract for agreed-upon standards
  4. If unresolved: File complaint with L&I (protects your bond claim rights)

Step 9: Project Completion

Final Walkthrough Checklist

Before making final payment:

  • All contracted work is complete
  • Quality meets contract specifications
  • Permits have been signed off by inspector
  • Certificate of Occupancy (if applicable)
  • All debris removed, site is clean
  • Equipment and appliances work properly
  • Touch-up paint and finishing complete

Documents to Collect

Get these from your contractor:

  • Final lien release
  • Warranty information (written)
  • Maintenance instructions
  • Product manuals and specs
  • Final inspection sign-off
  • Before/after photos
  • Contact info for warranty claims

After the Project

  • Leave a review (honest reviews help other homeowners)
  • Keep all documents for at least 7 years
  • Note warranty expiration dates on your calendar
  • Take photos of finished work for your records

Quick Reference: Your Contractor Hiring Checklist

Print this page and check off items as you go:

Verification

  • L&I registration active
  • Bond current
  • Insurance verified
  • Workers' comp compliant
  • No major complaints

Vetting

  • 3-5 quotes obtained
  • References called (3+)
  • Previous work reviewed
  • Questions asked and answered

Contract

  • Written contract provided
  • All work detailed
  • Materials specified
  • Payment schedule reasonable
  • Warranty terms included
  • Both parties signed

Project

  • Permits pulled
  • Progress documented
  • Changes in writing
  • Final walkthrough done
  • Final payment held until satisfied

Resources

Verify a Contractor: secure.lni.wa.gov/verify
File a Complaint: lni.wa.gov
Washington Attorney General: atg.wa.gov (consumer protection)
Better Business Bureau: bbb.org


This checklist is provided for informational purposes. For legal matters, consult with a licensed attorney.

Directory last updated: March 4, 2026 • All contractors verified by Washington L&I