Custom Signs in Seattle — Built and Installed Since 1986

Yes. Plumb Signs is headquartered at 909 S 28th Street in Tacoma, WA 98409 — roughly 35 miles south of downtown Seattle on I-5. We have been fabricating and installing signage in Seattle and across King County since 1986, including the new Pike Place Market neon sign on the Seattle waterfront.

Recent named Seattle and King County projects include the Pike Place Market neon waterfront sign, the citizenM Hotels signage package at 201 Westlake Ave N, The Habit Burger Grill's West Seattle restaurant signage program, and the Shoreline Place multi-tenant illuminated pylon and monument system at 15801 Westminster Way N. Each project has its own live case study on plumbsigns.com.

Commercial signs in Seattle proper are permitted through the Seattle Department of Construction & Inspections (SDCI). The submittal typically includes engineered structural drawings for monument and pylon signs, electrical permitting for any illuminated cabinet or channel letter, and, for downtown sites and special-review districts, additional review for projecting signs, blade signs, and façade work. Plumb Signs prepares the full permit package and follows it through to approval.

A lightbox sign is an aluminum-framed cabinet with a translucent acrylic or polycarbonate face, internally illuminated by LEDs, that produces an even, brand-true glow at night and a clean printed face during the day. Lightboxes are the standard exterior identification system for hotels, retail, and corporate buildings — the technique we used for citizenM Hotels' façade signage in Seattle.

A landmark neon sign like the Pike Place Market waterfront sign combines a structural steel armature engineered for outdoor exposure, hand-bent neon tubing produced in a glass-shop process, transformers and electrical hardware rated for continuous outdoor operation, and a complex install — often staged through downtown logistics. Plumb Signs fabricated and installed the new Pike Place Market sign as a complete in-house program: design coordination, steel, neon, transport, and installation.

Yes. The citizenM Seattle project at 201 Westlake Ave N included a full interior and exterior package — lightbox façade signage on the north and south elevations, exterior wraps and address numbers, over 300 custom 7-inch round interior signs for rooms and amenities, ADA-compliant room IDs and evacuation maps in acrylic and stainless steel, and custom-printed wall murals heat-applied on site for seamless continuity.

Yes. ADA-tactile interior identification is a core capability — raised characters and Grade 2 Braille on non-glare finishes, fabricated to ADA Standards for Accessible Design and Washington state accessibility code. Our largest Seattle ADA program was the citizenM Hotels project at 201 Westlake Ave N: 300+ custom 7-inch round interior signs for rooms and amenities, ADA-compliant room IDs, and evacuation maps fabricated in acrylic and stainless steel for a downtown hotel environment.

UL-listed means the illuminated sign has been built to Underwriters Laboratories safety standards for electrical signage — wiring, LED drivers, grounding, and enclosure construction all meet the listed specification. UL-listed signs pass electrical inspection more reliably and carry lower long-term liability for the building owner. Every illuminated sign Plumb Signs fabricates is UL-listed.

Plumb Signs installs and services everything we build. Our installation crews handle structural anchoring, electrical hookup, and final commissioning on site, and our service team dispatches same-day from Tacoma for LED driver replacement, face repair, electrical troubleshooting, and storm damage across Seattle, King County, and the greater Puget Sound.