The Complete Guide to Hiring a Roofer in Washington State

📂 Hiring Guides 📅 Updated March 2025

The Complete Guide to Hiring a Roofer in Washington State

Everything you need to know about finding, vetting, and working with licensed roofing contractors in Washington

Last Updated: March 2025

Washington State Roofing Contractor Requirements

Washington State has specific licensing requirements for roofing contractors that go beyond standard general contractor registration. Understanding these requirements helps you ensure any roofer you hire is legally qualified and properly protected.

Roofing Contractor Registration

In Washington, roofing contractors must have:

L&I Contractor Registration: All contractors must be registered with the Washington State Department of Labor & Industries
Roofing Endorsement: Contractors performing roofing work over $1,000 must have a specific roofing endorsement
Enhanced Surety Bond: Roofing contractors need an additional $6,000 roofing bond (on top of the standard $12,000 contractor bond)
General Liability Insurance: Minimum coverage required (industry standard is $1,000,000+)
Workers' Compensation: Required if they have employees (roofing is especially high-risk)
UBI Number: Valid registration with the Department of Revenue

Why Roofing Has Extra Requirements

Roofing is one of the most common sources of contractor complaints in Washington. The additional $6,000 roofing bond exists because:

Roofing projects are often high-dollar
Problems may not appear until years later (leaks, premature failure)
"Storm chasers" and fly-by-night operators target homeowners after weather events
The bond provides additional consumer protection

What This Means for Homeowners

When you hire a registered roofing contractor with the roofing endorsement, you have:

$18,000 in bond protection ($12,000 general + $6,000 roofing)
Verified insurance coverage for damage and injury
L&I complaint process if problems arise
Documented contractor that can be held accountable

Average Roofing Costs in Washington State

Roofing costs in Washington vary by region, material, and roof complexity. Western Washington's wet climate and Seattle's premium labor rates create significant price variations.

Roof Replacement Costs by Material

Material	Per Sq Ft (Installed)	2,000 Sq Ft Roof	Lifespan
Asphalt (3-tab)	$3.50-$7.00	$7,000-$14,000	15-20 years
Asphalt (architectural)	$5.00-$10.00	$10,000-$20,000	25-30 years
Metal (corrugated)	$6.00-$14.00	$12,000-$28,000	25-40 years
Metal (standing seam)	$10.00-$22.00	$20,000-$44,000	40-70 years
Cedar shake	$10.00-$22.00	$20,000-$44,000	30-40 years
Composite shake	$8.00-$18.00	$16,000-$36,000	30-50 years
Concrete tile	$10.00-$25.00	$20,000-$50,000	50+ years
Slate	$20.00-$50.00	$40,000-$100,000	75-100 years

Regional Price Adjustments

Region	Multiplier	Notes
Seattle/Eastside	1.25-1.40x	Highest labor costs, competitive market
Tacoma/South Sound	1.10-1.20x	Slightly below Seattle
Olympia/Thurston	1.00-1.10x	Baseline state average
Bellingham	1.05-1.15x	Growing demand
Tri-Cities	0.90-1.00x	Below average
Spokane	0.85-0.95x	Lower labor costs
Rural Washington	0.80-0.95x	Lower labor, but travel fees may apply

Additional Roofing Costs

Item	Typical Cost
Tear-off (single layer)	$1,000-$2,500
Tear-off (multiple layers)	$2,000-$4,000
Decking repair/replacement (per sheet)	$75-$150
New flashing	$300-$800
New drip edge	$200-$500
Ridge vent installation	$300-$600
Skylight flashing	$200-$500 each
Chimney flashing	$300-$600
Gutter replacement	$1,000-$3,000
Moss treatment	$300-$600
Permit fees	$150-$500

Roof Repair Costs

Repair	Typical Cost
Patch small leak	$200-$500
Replace damaged shingles (small area)	$300-$800
Fix flashing leak	$300-$700
Replace vent boot	$150-$350
Emergency tarp	$200-$500
Roof inspection	$150-$400 (often credited toward repair)

What Affects Roofing Costs

Increases costs:

Steep roof pitch (7/12 or higher requires additional safety equipment)
Multi-story home
Complex roof design (many valleys, dormers, angles)
Multiple layers to remove
Significant decking damage
Limited access for materials
Seattle/King County locations
Premium materials

Decreases costs:

Simple roof design
Single-story ranch
Easy access
Single layer tear-off only
Off-season work (winter)
Combining with other contractors' work

Questions to Ask Before Hiring a Roofer

Licensing and Insurance Questions

"What is your L&I contractor registration number?"
- Every contractor must have one
- Verify at secure.lni.wa.gov/verify
"Do you have the roofing endorsement?"
- Required for roofing work over $1,000
- Should show when you verify their license
"Can you provide proof of insurance?"
- Should have $1,000,000+ liability insurance
- Ask for Certificate of Insurance naming you as additional insured
"Do you have the enhanced roofing bond?"
- Should have $6,000 roofing bond plus $12,000 general
- Verifiable through L&I
"Is your workers' compensation current?"
- Essential for roofing (high-risk work)
- Protects you from liability if a worker is injured

Project-Specific Questions

"Will you pull the permit?"
- Most roof replacements require permits
- Professional roofers handle permitting
"What does the quote include?"
- Materials, labor, tear-off, disposal, permits, cleanup
- Get itemized written quote
"What material options do you recommend for my situation?"
- Should consider your climate, home style, budget, and goals
- Be wary of one-size-fits-all recommendations
"How will you protect my landscaping and property?"
- Tarps, plywood, magnetic nail sweepers
- Your yard shouldn't be destroyed
"What's your warranty on labor?"
- Workmanship warranty should be 5-10 years minimum
- Manufacturer warranty on materials is separate
"What happens if you find rot or damage?"
- Get per-sheet pricing for decking replacement
- Understand the change order process
"Who will be on my roof?"
- Company employees or subcontractors?
- Are they experienced and supervised?

Timeline Questions

"How long will the project take?"
- Most residential roofs: 1-3 days
- Weather contingencies?
"What's your schedule look like?"
- When can you start?
- Summer is busy—book early
"What if it rains?"
- How will they protect exposed areas?
- Do they carry tarps?

Red Flags When Hiring a Roofer in Washington

Roofing is notorious for attracting scam artists, especially after storms. Watch for these warning signs:

Storm Chaser Warning Signs

🚩 Shows up uninvited after a storm — Door-to-door sales after weather events are classic storm chaser behavior. Legitimate local roofers have plenty of work without cold-calling.

🚩 "Limited time offer" or extreme pressure — High-pressure tactics to sign immediately are manipulation, not professionalism.

🚩 Offers to pay your insurance deductible — This is insurance fraud in Washington. Walk away.

🚩 Out-of-state license plates — Companies following storms across states often disappear after cashing your check.

🚩 Will handle your insurance claim for you — While roofers can document damage, be wary of those who want to fully control your insurance claim.

General Red Flags

🚩 Cannot provide L&I registration number — Unregistered contractors are illegal in Washington.

🚩 No roofing endorsement — Required for roofing work over $1,000.

🚩 Cash only or demands full payment upfront — Never pay 100% upfront. 10-30% deposit is reasonable.

🚩 No written contract — Washington requires written contracts for work over $1,000.

🚩 Significantly lower than other bids — If one bid is 40% lower, they're cutting corners somewhere.

🚩 No physical local address — PO Box only or no address is a red flag.

🚩 Won't provide references — Established roofers have happy customers.

Technical Red Flags

⚠️ Quotes over phone without seeing roof — Accurate quotes require visual inspection.

⚠️ Doesn't mention decking inspection — Can't know condition until old roofing is removed.

⚠️ Doesn't discuss ventilation — Proper attic ventilation is crucial for roof longevity.

⚠️ Plans to install over multiple existing layers — Washington generally allows 2 layers max, but tear-off is usually better.

⚠️ No discussion of flashing or details — Details make or break a roof.

How to Verify a Washington Roofer's License

Verification is free and essential. Here's how:

Step-by-Step Verification

Go to the L&I Verification Tool: secure.lni.wa.gov/verify
Select "Contractors"
Search by company name or registration number
Review results carefully

What to Look For

✅ Status: ACTIVE — Must be active, not expired, suspended, or inactive.

✅ Specialty: Should include "Roofing" — Look for roofing endorsement.

✅ Bond: Current — Should show both general ($12,000) and roofing ($6,000) bonds.

✅ Insurance: Current — Liability insurance must be active.

✅ Workers' Comp: Compliant — Must show compliance (roofing is high-risk work).

✅ Expiration Date — Make sure registration won't expire during your project.

Check Complaint History

The L&I verification tool shows:

Number of complaints filed
Complaint outcomes
Any violations

For roofing, some complaints over many years aren't unusual (it's a high-volume, weather-dependent trade). But patterns of complaints or unresolved issues are concerning.

Phone Verification

L&I Customer Service: 1-800-647-0982
Hours: Monday-Friday, 8am-5pm Pacific

What to Expect During Your Roofing Project

Before Work Begins

Estimate Phase (1-2 weeks before):

Roofer inspects roof (often from ground + ladder inspection)
Discusses material options
Provides written estimate within 2-5 days
Quote details materials, labor, tear-off, disposal, permits

Contract Phase: 5. Review and sign contract 6. Pay deposit (10-30%) 7. Contractor orders materials 8. Contractor pulls permit

Day of Installation

Setup:

Crew arrives early (7-8 AM typically)
Materials delivered (often before or same morning)
Tarps placed to protect landscaping
Dumpster positioned

Tear-Off:

Old roofing removed
Decking inspected and damaged areas replaced
You'll be notified of any additional work needed

Installation:

Underlayment/ice and water shield installed
Drip edge and flashing installed
Shingles/roofing material installed
Ridge vents and caps completed
All penetrations (vents, skylights, chimney) properly flashed

Cleanup:

Site cleaned thoroughly
Magnetic nail sweeper used on entire property
Debris hauled away
Final inspection by crew lead

Timeline Expectations

Project	Typical Duration
Simple ranch roof	1 day
Average two-story home	1-2 days
Complex/large roof	2-3 days
Re-deck required	Add 1 day
Cedar shake or tile	3-5 days
Commercial flat roof	Varies widely

Weather Note: Western Washington's rain can extend timelines. Professional roofers monitor weather and will protect exposed areas if rain interrupts work.

After Completion

Final walkthrough with crew leader
Inspection scheduled and passed
Final payment upon satisfaction
Warranty documentation provided
Permit card signed off

Common Roofing Problems and How to Avoid Them

Western Washington-Specific Issues

Problem: Moss and algae growth Prevention:

Choose algae-resistant shingles
Install zinc or copper strips near ridge
Maintain tree clearance
Regular roof maintenance (annual cleaning if needed)
Budget $300-$600 for professional moss treatment

Problem: Moisture and ventilation issues Prevention:

Ensure proper attic ventilation (intake at soffits, exhaust at ridge)
Check for condensation in attic
Address any interior humidity sources
Make sure bathroom/kitchen fans vent outside, not into attic

Problem: Wind damage Prevention:

Choose wind-rated shingles (110+ mph rating)
Proper installation with correct nailing pattern
Hip roofs perform better than gable in wind

Eastern Washington-Specific Issues

Problem: UV degradation Prevention:

Choose UV-resistant materials
Lighter colors reflect heat
Regular inspections

Problem: Extreme temperature cycling Prevention:

Quality materials rated for temperature range
Proper attic ventilation
Ice and water shield at eaves

General Issues

Problem: Premature shingle failure Prevention:

Choose quality materials (not cheapest option)
Verify proper ventilation
Ensure correct installation (right nails, correct placement)
Don't skimp on underlayment

Problem: Leak around penetrations Prevention:

Quality flashing installation
Regular inspection of boots and seals
Replace cracked vent boots proactively

Problem: Ice dams (mountain areas) Prevention:

Adequate attic insulation (R-49 or higher)
Proper ventilation
Ice and water shield at eaves
Consider heat cables if necessary

When DIY Is Okay vs. When to Call a Pro

Safe for Homeowner DIY

✅ Cleaning gutters — Regular maintenance, be safe on ladder

✅ Inspecting from ground — Use binoculars, note concerns

✅ Cleaning debris from roof — If you can safely access it

✅ Minor moss treatment — Apply zinc sulfate solution

✅ Replacing a few shingles — If you're comfortable on roofs (very few shingles, simple repair)

Always Call a Licensed Roofer

🏠 Full roof replacement — Major project requiring proper installation, permits, warranty

🏠 Any structural repairs — Decking, rafters, trusses

🏠 Flashing work — Critical for waterproofing

🏠 Anything requiring permit — Most roof work over $1,000

🏠 Steep roofs — Safety hazard without proper equipment

🏠 Multi-story homes — Professional safety equipment needed

🏠 Insurance claims — Documentation and proper repair are important

🏠 Any work you're not 100% confident about — Mistakes cause leaks

Why DIY Roofing Is Risky

Safety: Falls from roofs cause serious injuries and deaths
Improper installation: Voids manufacturer warranty, causes leaks
Code violations: May need to be redone to sell home
Insurance issues: DIY work may not be covered
Hidden damage: Professionals know what to look for

Washington-Specific Roofing Considerations

Western Washington (Seattle, Tacoma, Olympia, Bellingham)

Climate Challenges:

35-50+ inches of rain annually
Persistent moisture
Moss and algae growth
Occasional high winds

Best Material Choices:

Architectural asphalt shingles — Most popular, algae-resistant versions available
Metal roofing — Excellent for wet climates, sheds water and moss
Composite shake — Looks like cedar without the maintenance

Considerations:

Ice and water shield at eaves, valleys, and penetrations
Proper ventilation critical to prevent condensation
Regular moss maintenance needed
Cedar shake requires ongoing maintenance in wet climate

Eastern Washington (Spokane, Tri-Cities, Yakima)

Climate Challenges:

Hot summers, cold winters
Temperature extremes (cycling)
More UV exposure
Occasional heavy snow

Best Material Choices:

Metal roofing — Handles temperature swings, reflects heat
Architectural asphalt — Good all-around choice
Cool roof options — Reflect heat in hot summers

Considerations:

UV-resistant materials important
Snow load ratings for mountain areas
Proper ventilation for temperature cycling

Seattle-Specific Notes

Seattle has additional permit requirements
Permit fees higher than most of state
Historic districts may have material restrictions
Cedar shake is common in older neighborhoods but requires maintenance
ADU rules may affect re-roofing if expanding

Building Code Notes

Washington follows International Residential Code with state amendments
Minimum roof requirements depend on climate zone
Ice and water shield required in certain applications
Permits required for most roof replacements
Two layers maximum generally allowed (tear-off often better)

Finding Trusted Roofers in Washington

Steps to Find a Good Roofer

Get recommendations from neighbors who've had recent roof work
Check online reviews but look for patterns, recent reviews, and specific details
Verify L&I registration with roofing endorsement at secure.lni.wa.gov/verify
Get 3-5 written quotes — Don't just compare price, compare scope
Ask about warranties — Both workmanship and manufacturer
Check references — Talk to previous customers
Meet them in person — Gauge professionalism

What Good Roofers Have in Common

Licensed, bonded, insured (verifiable)
Local business with physical address
Clear communication
Detailed written estimates
Don't pressure you
Explain options and recommendations
Warranty their work (5-10 years workmanship)
Show up when scheduled
Clean up thoroughly
Handle permits professionally

Protecting Yourself

Before Work Begins

Verify L&I registration and roofing endorsement
Get certificate of insurance
Sign detailed written contract
Understand payment schedule (10-30% down, balance upon completion)
Confirm permit will be pulled
Get per-sheet pricing for decking if rot is found

During Work

Don't pay ahead of work completed
Document with photos throughout
Address concerns immediately
Approve any change orders in writing

After Work

Do final walkthrough before final payment
Ensure inspection passes
Get lien releases
Keep all warranty documentation
Photograph completed roof for records

If Something Goes Wrong

Document the issue with photos and written description
Contact contractor in writing requesting resolution
Give reasonable time to fix (30 days for most issues)
File L&I complaint if unresolved
Bond claim may be available
Small claims court for disputes under $10,000
Attorney for larger disputes

Summary

Hiring a roofer in Washington requires verifying their L&I registration AND roofing endorsement. The enhanced bond requirements provide additional protection, but you must still do your due diligence.

Be especially cautious after storms when out-of-state "storm chasers" appear. Stick with established local roofers with verifiable licenses and solid reputations. Your roof is your home's first line of defense—don't trust it to anyone but a qualified professional.

Looking for a licensed, verified roofer in Washington? Our directory features roofing contractors confirmed active with Washington L&I, properly endorsed, bonded, and insured. Browse our Washington roofer listings to find qualified professionals in your area.

This guide is for informational purposes only and does not constitute legal or professional advice. Always verify current licensing requirements with Washington L&I and consult professionals for your specific situation.