Published August 16, 2026

Essential Home Inspection Checklist for Seattle Buyers

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Written by Sean Dooney

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Essential Home Inspection Checklist for Seattle Buyers

Buying a home in Seattle requires careful evaluation during the physical inspection window. Due to our unique Pacific Northwest climate, hilly geography, and age of local housing stock, standard home inspections require extra attention to regional factors.

Knowing what to evaluate during your inspection contingency protects your investment and prevents unexpected repair bills after closing.

Critical Inspection Items for Seattle Homes

  1. Side Sewer Line Conditions Seattle side sewers connect private residential lines to city main lines. Many older homes feature original clay tile pipes vulnerable to tree root intrusion and collapse.

  • Scope Inspection: Always hire a specialist to conduct a side sewer video scope inspection to verify pipe integrity.

  • Cost Awareness: Sewer repairs or complete line replacements can be significant, making early inspection vital.

  1. Roof, Gutters, and Drainage Systems Heavy rainfall makes proper water management essential for keeping foundations dry and preventing wood rot.

  2. Roof Condition: Check for moss accumulation, damaged shingles, and proper attic ventilation.

  3. Drainage: Inspect downspout discharge paths, foundation French drains, and perimeter grading to ensure water flows away from the structure.

  4. Underground Heating Oil Tanks Many vintage Seattle craftsman homes originally used oil heat before converting to natural gas or heat pumps.

  • Soil Testing: Verify whether abandoned underground storage tanks were decommissioned according to municipal environmental standards.

Frequently Asked Questions

What is a sewer scope inspection and why is it necessary? A sewer scope uses a fiber optic camera to inspect the interior of the side sewer pipe. It reveals cracks, blockages, root invasion, or pipe collapses that standard inspectors cannot see.

Who pays for home repairs identified during a Seattle inspection? Repairs are negotiated between buyer and seller. Buyers can request seller credits, price reductions, or specific repairs completed before closing.

Should I inspect an unreinforced masonry foundation in an older home? Yes, vintage homes built before modern earthquake codes should be checked to confirm if seismic retrofitting, foundation bolting, and shear wall framing have been added.

Want expert guidance when reviewing local property disclosures and inspection reports? Contact our team today to ensure your interests are fully protected!

Call: (425) 920-3959

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Buying, Selling
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Sean Dooney

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