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For nearly 40 years, Plumb Signs has designed, fabricated, and installed custom commercial signage throughout Seattle, Tacoma, and Washington State — from pylon and monument signs to ADA and 3D lettering.
We combine design, engineering, and installation expertise to create signage that elevates your brand visibility across Washington businesses, schools, and healthcare facilities.
Industries We Serve
From hospitals to higher education and financial institutions — Plumb Signs delivers signage built for every environment.

Healthcare
Wayfinding, compliance, and exterior signage for hospitals, clinics, and health systems.

Education
Campus wayfinding, donor recognition, and identity signage for schools, colleges, and universities.

Finance & Office
Branded signage for banks, corporate offices, and professional services — built for scale and compliance.
See Our Work in Action
Explore how we help industries stand out — from civic spaces to stadiums, retail, finance, and beyond.




Quick Answers from Our Team
We get these questions often — here’s what you should know about working with Plumb Signs.
Explore Our Signage Insights
Practical guides to help you plan, design, and execute signage projects with confidence. Each resource distills real-world expertise — from planning and code compliance to materials and installation.
Our team is ready to guide your next signage project — from idea to installation. Drop us a note and we’ll get back to you quickly.
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