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FAQ — Greater Seattle Metro

What is the 25% rule for roofing and insurance claims?

The 25% rule in roofing refers to a common insurance and building code guideline. This is a typical guideline that insurance companies follow — but it is not a hard rule. If more than 25% of your roof requires repair or replacement, most insurance companies prefer a full roof replacement rather than a partial repair. This rule exists to ensure the overall structural integrity of your home and roof.

If you've had multiple repairs over the years, or a storm damaged a significant portion of your roof in King County or Snohomish County, there's a good chance you may qualify to do a full replacement with your insurance company. Real Great Roofing will conduct a free roof inspection to analyze your current situation and work with your insurance company.

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Free Damage Inspections

No-obligation assessment of your roof's current condition after any damage event.

Insurance Claim Assistance

We document damage thoroughly and coordinate with your carrier to support your claim.

Photographic Documentation

Every inspection includes a full photographic record you can share with your insurer.

PNW Damage Expertise

We understand the specific damage patterns caused by moss, wind, and sustained rainfall.

Emergency Response Available

Post-storm inspections and emergency tarping throughout King and Snohomish County.

Transparent Repair Estimates

Honest, itemized quotes with no pressure to do more than what's actually needed.

Service Options

Choose What Works For You

Recommended

Annual

Home Care Program

Bundle & save on annual roof and gutter cleaning

What You Get:

  • 10% off each cleaning
  • 1–2 visits per year
  • Gutter and downspout cleaning
  • Gutter polishing
  • Comprehensive gutter inspection
  • Roof cleaning and maintenance
  • Comprehensive roof inspection
  • Storm cleaning
  • Priority cleaning & inspection after storms

One-Time

Roof Cleaning

What You Get:

  • 1 professional roof cleaning
  • Moss & algae soft-wash treatment
  • Debris clearing from all surfaces
  • Preventive anti-growth application
  • Minimize damage caused by moss & debris
  • Increase roof lifespan
  • Identify concerns before they cause issues

Annual

Roof Maintenance

What You Get:

Everything from a one-time cleaning plus:

  • 5% off each cleaning
  • 1–2 cleanings per year
  • Roof inspection & condition report
  • Priority scheduling
  • Priority cleaning & inspection after storms

One-Time

Gutter Cleaning

What You Get:

  • 1 professional gutter cleaning
  • Full debris removal from troughs
  • Downspout flushing & clearing
  • Flow test and inspection
  • Hanger inspection

Annual

Gutter Maintenance

What You Get:

Everything from a one-time cleaning plus:

  • 5% off each cleaning
  • 1–2 cleanings per year
  • Gutter inspection & condition report
  • Priority scheduling
  • Priority cleaning & inspection after storms

Roofing Rules, Costs & Damage Basics — Greater Seattle Metro

Protecting Your Roof from Damage in the Pacific Northwest

Understanding the rules, costs, and common damage patterns of roofing in the Pacific Northwest helps Seattle-area homeowners make better decisions about their biggest asset. Real Great Roofing's approach is built on transparency and data — we give you the facts about your roof's condition and the honest range of repair or replacement costs, without upselling or pressure.

King County and Snohomish County roofs face a specific set of stressors: relentless moisture, moss and algae growth, winter windstorms, and UV degradation from even indirect sunlight. These forces work together over time, and understanding which ones are affecting your roof — and how much — is exactly what our free inspections are designed to determine.

Whether you're asking about the 25% insurance rule, the most expensive part of a replacement, or the most cost-effective path forward, Real Great Roofing can give you a straight answer. We document everything photographically, explain our findings clearly, and recommend only what's actually needed. That's the Real Great Roofing standard.

What We Install

Roofing Systems We Install

Every material we specify is selected for durability in Pacific Northwest conditions — resistant to moss, moisture, and wind while delivering the performance King and Snohomish County homeowners expect.

Most PopularGreater Seattle Metro

Composite (Asphalt) Shingles

Architectural-grade shingles deliver 30–50-year lifespans, dimensional textures that complement Northwest architecture, and strong resistance to wind-driven rain, UV exposure, and algae growth — the most cost-effective full replacement option for most Seattle Metro homes.

50+ Year LifespanGreater Seattle Metro

Metal Roofing

Metal roofs offer 50-plus-year lifespans, exceptional weather resistance, and low maintenance — ideal for high-value homes across Bellevue, Kirkland, Sammamish, and the Eastside. Concealed fasteners shed rain fast and resist moss far better than most alternatives.

Flat Roof SpecialistGreater Seattle Metro

Low-Slope PVC & TPO Roofing

Heat-welded single-ply membrane systems for low-slope and flat sections common on modern homes across King and Snohomish County. Fully welded seams create a continuous watertight envelope that stands up to Pacific Northwest rainfall and ponding water.

King & Snohomish County

Our Roofing Services in the Greater Seattle Metro

From the first free inspection to final cleanup, we handle every phase of your roofing project with transparent pricing and a workmanship guarantee that backs up every install.

Free Roof Inspection

We inspect every component of your roof system and give you a clear, documented condition report before recommending any work. No obligation, no pressure — just honest information.

Full Tear-Off & Deck Inspection

Every replacement starts with a complete tear-off to the deck. We inspect and replace any rotted sheathing before a single piece of new material goes down — so your new roof starts on a sound foundation.

Ice & Water Shield Installation

We install ice and water shield at all eaves, valleys, and penetrations — the highest-risk zones in any PNW roof. This critical layer prevents the water intrusion that causes interior damage during the heaviest Pacific Northwest storms.

Insurance Claim Assistance

We document storm and wind damage thoroughly for your carrier, work within the insurance process, and rebuild your roof to original specification or better using code-compliant materials and methods.

Roof Cleaning & Moss Treatment

Soft-wash treatment removes moss and algae and applies anti-growth preventive treatments that extend the life of your existing roof — the most cost-effective maintenance service for any PNW homeowner.

10-Year Workmanship Warranty

Every installation is backed by our 10-year workmanship warranty on top of manufacturer coverage that comes with the materials. We stand behind every nail and shingle we install.

Built for the PNW

Engineered for Pacific Northwest Weather

King and Snohomish County roofs face steady rainfall, windstorms, and moss-promoting humidity year-round. Every replacement we install is engineered to resist moisture intrusion, reduce moss growth, and improve attic ventilation — extending the life of your roof and improving energy performance across all seasons.

Licensed & Insured

Trusted Roofing Contractors in the Greater Seattle Metro

As a fully licensed, bonded, and insured roofing company serving the Greater Seattle Metro, we know what it takes to deliver a replacement that performs in our climate. Our crews are trained and professional, our pricing is transparent, and our 10-year workmanship warranty means we stand behind every job we complete.

Got Questions?

Frequently Asked Questions

Roof Replacement Services

Roof Repair & Replacement Costs in Seattle / Washington

Roofing Rules, Costs & Damage Basics

Roof Age, Lifespan & Longevity

Insurance & Washington State Considerations

Roof Failure & Warning Signs

Do I Need to Replace My Roof?

Seasonal Roofing & Installation Questions

During Your Roof Replacement

Washington State Roofing & Home Value

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