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.

09/02/2026

When you bring the perfect ladder for the job 🙈

Banner is officially up for our friends at Macris Chocolates 😍Do yourself a favor and stop in for some AMAZING treats, y...
09/02/2026

Banner is officially up for our friends at Macris Chocolates 😍

Do yourself a favor and stop in for some AMAZING treats, you will not be disappointed!

Unveiling the new signs for Signature Home WorX 😍😍😍
09/02/2026

Unveiling the new signs for Signature Home WorX 😍😍😍

New graphics for Iron Rose K9 😍No dogs were pet during the lettering of this van, but maybe next time 🐾
08/31/2026

New graphics for Iron Rose K9 😍

No dogs were pet during the lettering of this van, but maybe next time 🐾

Some of the signs we installed for the new Goodwill Keystone 😍
08/31/2026

Some of the signs we installed for the new Goodwill Keystone 😍

08/31/2026

✨ **Another exciting step for our NEW shop!** ✨

One of our new **Serendipity Stitch** signs is officially installed, and we are absolutely loving how it turned out! 💜💛 Seeing our name going up on the building makes this whole adventure feel a little more real!

A big shoutout and THANK YOU to Amanda of Keystone Sign Service in Mt. Holly Springs for doing such a beautiful job! The entire process was fast, professional, and seamless, and the finished sign looks amazing. We couldn’t be happier!

We especially love being able to work with another local Mt. Holly Springs business as we get ready to make this wonderful community our new home. 💜

One more piece in place…and so much more to come! 🧵✨ We can’t wait to show you what we’re creating inside!

Having fun doing what we do best! We are currently looking for a sign installer to join our team. If you’re agile, don...
08/21/2026

Having fun doing what we do best! We are currently looking for a sign installer to join our team. If you’re agile, don’t mind heights or tight spaces, have a good attitude and work ethic, give us a call!

Out here with 2 trailer loads of signs! 💪🏽
08/21/2026

Out here with 2 trailer loads of signs! 💪🏽

New interior wall sign is up for Merit Financial Advisors 😍1/2” painted acrylic with brushed aluminum laminate overlay
08/13/2026

New interior wall sign is up for Merit Financial Advisors 😍

1/2” painted acrylic with brushed aluminum laminate overlay

The face you make when you’re only 5’ tall and get asked to carry the 6’x12’ sheet of polycarb 🙈
08/12/2026

The face you make when you’re only 5’ tall and get asked to carry the 6’x12’ sheet of polycarb 🙈

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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