Seattle Roofing Guide: When to Repair vs. Replace Your Roof

Signs You Might Need a Roof Repair

• A few missing or cracked shingles
• Small water stains on ceiling or attic
• Minor leaks during heavy rainfall
• Flashing around vents or chimneys that looks loose

When a Full Roof Replacement is Wiser

• Roof is more than 20–25 years old
• Widespread shingle curling or bald spots
• Soft spots or sagging areas on the roof deck
• Chronic leaks despite multiple repairs
• Moss or algae growth that returns after cleaning

Popular Roofing Materials in Seattle (2025)

1. Architectural Asphalt Shingles
   
   • Affordable and durable
   • Lifespan: 25–30 years
   • Most common in Washington
2. Standing Seam Metal Roofing
   
   • Sleek, modern look
   • Excellent for heavy rain and snow
   • Lifespan: 40–70 years
3. Composite or Synthetic Shake
   
   • Mimics cedar shake without the maintenance
   • Resistant to mold, rot, and insects
   • Increasingly popular for upscale homes

Average Costs in Seattle (2025)

• Asphalt shingle replacement: $12,000–$25,000
• Metal roof: $30,000–$55,000
• Synthetic shake: $25,000–$40,000

What Impacts the Cost?

• Roof pitch (steeper = more labor)
• Size and number of roof facets
• Underlayment condition
• Whether structural repairs are needed
• Disposal fees and permit requirements

Real Example A recent roof replacement in Sammamish involved removing two layers of shingles, repairing 100 sq ft of plywood sheathing, and installing architectural shingles with upgraded ridge vents. Total cost: $18,200. The home’s energy efficiency improved and the homeowners qualified for a local rebate.

Repair vs. Replace Decision Tree

• Less than 15% damage? Repair.
• Over 20 years old? Replace.
• Multiple past repairs and still leaking? Replace.

FAQs Q: How long does a roof replacement take in Seattle?
A: 1 to 3 days, depending on size and weather.

Q: Can I put a new roof over an old one?
A: It’s legal in some cities, but not recommended. Nova Remodeling always removes old roofing for best results.

Q: Do I need a permit for roof work?
A: Yes. We handle all permits through local municipalities.

Conclusion Your roof is your first defense against Seattle’s harsh weather. Don’t gamble with patchwork repairs when a full replacement will save you money long term. Nova Remodeling specializes in honest assessments and top-tier roofing work across King, Snohomish, and Pierce Counties.

Call us for a no-obligation on-site consultation. Nova Remodeling—your trusted roofing partner in the Pacific Northwest.