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.

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

Friends and customers, I’m afraid that I have some sad news to share. Our sweet shop dog Luna has passed. She was my s...
04/10/2026

Friends and customers, I’m afraid that I have some sad news to share. Our sweet shop dog Luna has passed. She was my sidekick and best girl for 12 years. Many of you knew her and often looked forward to seeing her.

We are heartbroken but replaying all of the good memories. If you have any to share, please comment below.

“Until one has loved an animal, a part of one’s soul remains unawakened”

04/02/2026

Dad can’t pass up a 50 dollar bill!

Deep in a 15’ post inside a sign, he looked down and there it was 😎

Over the river and through the woods…. Off to a sign we go. They put these things in the darndest places
04/02/2026

Over the river and through the woods…. Off to a sign we go.

They put these things in the darndest places

Toasty Asana is getting ready for their grand opening, April 6th! Be sure to check out their website for class schedules...
04/01/2026

Toasty Asana is getting ready for their grand opening, April 6th!

Be sure to check out their website for class schedules, they are going to fill up fast!

04/01/2026

Another flex face installed before opening day! 💪🏽

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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