Costs vary significantly based on size, material, illumination type, and installation complexity. As a general guide, small indoor LED letter sets may start at $500–$1,000, while larger outdoor signs can range from $2,000 to $10,000+. Treat those figures as a guide rather than a quote – size, material, quantity, access and finishing can move the price quickly. If you send us the basics, we would rather price the real job than guess.