
Harmon Industrial Park · Tamuning, Guam
Your one-stop sign solution
We make the best looking signs on the island. Quality materials, current lighting, and a licensed Guam shop that also runs electrical, HVAC, sheet metal, welding, and paint.
License
Guam CLB R-0226-1032
Shop
130 E Harmon Industrial Park Rd, Tamuning, GU 96913
Call
(671) 646-1166
Exceptional products · made in Guam
One shop for the sign and the trades behind it
Welcome to Sign King, Inc.. Over the years we have earned the trust of island businesses and government clients because the work is built to industry standard — then installed so it lasts in this climate. Call (671) 646-1166 with drawings or a site address.
Custom signage
LED channel letters, aluminum lighted boxes, and complete interior identity work — the line the old shop site led with.
See the workElectrical
Power for signs and licensed electrical contracting on commercial and federal jobs.
See the workHVAC
Cooling and ventilation for shops, offices, and government facilities on Guam.
See the workMetal & paint
Sheet metal, welding, and painting from the same Harmon floor that builds the cabinets.
See the work
Federal & GovGuam
Licensed for the bases and the island
Sign King is a federal and GovGuam contractor. Typical customers include NAVFAC, GSA, Andersen AFB, and DZSP / Amentum — plus private storefronts that need a sign that still reads after typhoon season.
- NAVFAC
- GSA
- Andersen AFB
- DZSP / Amentum
- GovGuam
From the shop
Signs that carry from the road



Ready to price a job?
No hours were published on the last live site — call the shop or send drawings. We answer [email protected].
