Seattle Roofing Permits (SDCI) and Verifying a Licensed Roofer
Before hiring a roofer in Seattle, homeowners need to understand two separate systems: the City of Seattle's permit process through the Seattle Department of Construction and Inspections (SDCI), and the state of Washington's contractor registration system through the Department of Labor & Industries (L&I). Confusing the two, or skipping verification of either, is one of the most common ways homeowners end up with an uninsured contractor or an unpermitted reroof that causes problems at resale. This guide walks through both processes for 2026.
By Jason Green · Roofing & Gutters · Published August 13, 2026 · 6 min read
When a roofing permit is required in Seattle
SDCI generally requires a permit for a full roof replacement, particularly when more than 50 percent of the roof covering is being replaced, and for any structural work to the roof deck or framing.
Minor repairs, such as replacing a small number of damaged shingles or fixing a section of flashing, typically do not require a permit, but homeowners should confirm scope with SDCI or their contractor if there is any doubt, since the threshold is based on percentage of roof area affected.
How the SDCI permit process works
Permits are applied for through Seattle Services Portal, and most straightforward residential reroof permits are processed quickly, though homes in a designated historic district may require additional review from the Landmarks Preservation Board.
Once work begins, an inspection is generally required at completion to confirm the new roofing was installed to code; a reputable contractor familiar with Seattle's process typically handles scheduling this on the homeowner's behalf.
Verifying a WA L&I registered, bonded roofer
Washington requires all contractors, including roofers, to hold an active registration with the Department of Labor & Industries, which includes proof of a surety bond and general liability insurance on file.
Homeowners can look up any contractor for free at the L&I contractor lookup tool using the company name or UBI number, which shows registration status, bond amount and status, insurance status, and any filed infractions or lawsuits against the contractor.
Red flags to watch for
A contractor who cannot provide a UBI or registration number, asks for full payment upfront before any work begins, or pressures a same-day signature after a storm are all common warning signs, particularly among traveling storm-chasing crews that sometimes work the Puget Sound area after major wind events.
Registration status can lapse or be revoked, so it is worth checking L&I's lookup tool again shortly before signing a contract, even if a homeowner recognizes the company name from local advertising.
Putting it together before signing
Confirm SDCI permit responsibility and cost is clearly assigned in the contract, typically to the contractor, and get the permit number once issued rather than just taking a verbal confirmation that one was pulled.
Ask for the contractor's current L&I registration number, bond number, and certificate of insurance in writing, and verify all three independently rather than relying solely on documents the contractor provides.
Typical cost ranges
| SDCI reroof permit fee (typical) | $250 - $650 |
| Historic district design review (if applicable) | $0 - $500 |
| Post-installation inspection | Included in permit fee |
| L&I contractor bond minimum | $12,000 (state minimum) |
Ranges are general estimates gathered from homeowner-reported quotes, not an offer or a quote for your project.
Common questions
Do all roof replacements in Seattle need a permit?
Most full reroofs do, particularly when more than half the roof covering is being replaced; minor spot repairs generally do not.
How do I check if my roofer is registered with L&I?
Search the company name or UBI number at the L&I contractor lookup tool, secure.lni.wa.gov/verify, which shows registration, bond, and insurance status.
Who is responsible for pulling the roofing permit, me or the contractor?
Contractors typically pull the permit as part of the project, but this should be clearly stated in the written contract along with who covers the fee.
What happens if a roof is replaced without a required permit?
Unpermitted work can create problems at resale, since a buyer or inspector may require the work to be retroactively permitted and inspected, sometimes requiring exposing finished work for review.
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