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YJ Sign Inc. is a leading firm specializing in structural engineering for commercial sign permitting, offering precise engineering calculations and detailed drawings for various signage projects. Their nationwide services encompass the design and engineering of channel letters, wall signs, pylon signage, and monument signs, among others. With over 45 years of combined experience, YJ Sign Inc. is committed to delivering high-quality, durable, and visually appealing signage solutions that meet safety standards and structural integrity requirements.
In the competitive signage industry, YJ Sign Inc. stands out as the Sign Experts providing innovative and reliable solutions tailored to each client’s unique needs. Their team of professionals is dedicated to pro-active problem-solving, ensuring projects move forward with maximum efficiency.
Whether you’re undertaking a national brand conversion or need a signage package for a single location, YJ Sign Inc. is equipped to handle projects of any size, delivering exceptional turnaround times and adherence to the highest standards.

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YJ Inc. customer service offering help with Signage Structural Design, reflecting expertise in structural calculations for signs
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P.O. Box 802050
Santa Clarita, CA 91380
33336 N. Agua Dulce Canyon Road # 101 Agua Dulce, CA 91390
Monday – Thursday: 5am to 5:30pm PST
Friday: 5am – 5pm PST
Monday – Friday (Lunch Time): 12pm – 1pm PST