Residential Fire Sprinkler Installation in Seattle, WA

Rain City Fire Protection designs, permits, and installs fire sprinkler systems for new homes, duplexes, and townhomes in Seattle, Washington. If you're building in Seattle and the building department requires a fire sprinkler system, we handle the entire process from design through inspection.

Seattle's residential building code requires fire sprinkler systems in all new construction. We work closely with the Seattle Department of Construction and Inspections (SDCI) to ensure every system passes inspection the first time. From Capitol Hill custom homes to Ballard townhome projects, we know the city's requirements inside and out.

Seattle Permit & Cost Info

Seattle follows the Washington State Building Code with local amendments. All new residential construction requires NFPA 13D fire sprinkler systems. SDCI requires separate fire sprinkler permits with plan review.

Building Department

Seattle Department of Construction and Inspections (SDCI)

Permit Timeline

2–3 weeks typical

Typical Cost

Seattle projects typically cost $1.25–$2.00 per square foot depending on home size and complexity. Townhome projects may be slightly less per unit due to shared walls.

Neighborhoods We Serve in Seattle

We install fire sprinkler systems throughout Seattle, including these neighborhoods and surrounding areas.

BallardCapitol HillFremontWallingfordGreen LakeRavennaUniversity DistrictLaurelhurstMagnoliaQueen AnneWest SeattleColumbia CityBeacon HillNorthgate

Fire Sprinkler FAQs for Seattle

Common questions about fire sprinkler installation in Seattle, Washington.

Yes. Seattle requires NFPA 13D fire sprinkler systems in all new residential construction, including single-family homes, duplexes, and townhomes. This is a Washington State Building Code requirement enforced by SDCI.

SDCI typically reviews fire sprinkler permits in 2–3 weeks. We submit the application and design drawings on your behalf and handle any revision requests from the plan reviewer.

Most Seattle homes cost $1.25–$2.00 per square foot for a complete fire sprinkler system including design, permit, and installation. A typical 2,500 sq ft home runs $3,000–$5,000.

Building in Seattle?

Send us your plans and we'll get you a quote within 48 hours. Call 206-992-1090 or email geoff@raincityfireprotection.com.