Keystone Sign Service

Keystone Sign Service UL approved lighted signs - designed and manufactured, installation, repair, sales and service.
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Keystone Sign Service is a full service sign company located in the Greater Harrisburg area of Carlisle PA, specializing in wholesale manufacturing of signs and installation of lighted signs, channel letters, awnings and neon signs.

Attention to detail 😍This truck will be hitting the road next week for Creative Building Concepts
06/11/2026

Attention to detail 😍

This truck will be hitting the road next week for Creative Building Concepts

New sign is up for Williams Grove Speedway 🔥
06/08/2026

New sign is up for Williams Grove Speedway 🔥

When people say “I called you”. Yes, we know. We were a little busy 💪🏽
06/08/2026

When people say “I called you”. Yes, we know. We were a little busy 💪🏽

***Human for scale***This is a single piece 6’x20’ face 🙈We are actively looking for someone to join our team! We have ...
06/04/2026

***Human for scale***

This is a single piece 6’x20’ face 🙈

We are actively looking for someone to join our team! We have a lot of large scale projects on the calendar. If you are a motivated individual with experience in manlifts, construction or electrical, give us a call! No day is the same and we have a damn good time doing what we do 😎

Some of you may have noticed the new addition we started last week. We have been working hard for the last year to get ...
06/01/2026

Some of you may have noticed the new addition we started last week. We have been working hard for the last year to get approvals and permits for a second building. 4 more bays will allow for more fleet storage and space to letter and wrap your fleet vehicles.

Thank you to all of our customers for your unwavering support. This would not be possible without all of you!

Guess who drew the short straw on this 95 degree day and gets to crawl in here?! 🙈😩🙃
05/19/2026

Guess who drew the short straw on this 95 degree day and gets to crawl in here?! 🙈😩🙃

1/4” flat cut acrylic and frosted windows for our friends at Keller Williams of Central PA 😍
05/19/2026

1/4” flat cut acrylic and frosted windows for our friends at Keller Williams of Central PA 😍

A few shots from our removal this morning 🙈
05/13/2026

A few shots from our removal this morning 🙈

Big things happening today! 💪🏽
05/13/2026

Big things happening today! 💪🏽

A few shots of last weeks installs 💪🏽We have a busy few weeks coming up. If you are a motivated individual, seeking to ...
05/11/2026

A few shots of last weeks installs 💪🏽

We have a busy few weeks coming up. If you are a motivated individual, seeking to learn new skills and get out in the field, give us a call! 717-486-5381

Address

406 N Baltimore Avenue
Mount Holly Springs, PA
17065

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+17174865381

Website

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