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Best locksmiths near Greencastle, PA

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Top-Rated Locksmiths in Greencastle - Updated Nov 2026

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

Serving Greencastle, PA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"Dave Smith was AWESOME! Very knowledgeable and patient. We added new items to our order at the 12th hour and he came back twice to make sure that everything was completed as we desired. We also had Alarm Protection Group secure our office. Dave Smith and Co. make the process very easy-Highly recommended."
Additional Photos
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+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
889
)
Security Safe - Install

Serving Greencastle, PA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Walter and Glen at Protect Your Home Group with ADT are the best people to talk to in terms of security alarm. Being a locksmith myself I know how important it is to deal with the right people. I referred a lot of customers to them and so far they are happy with their service. I myself got one for my house. Thank you for a consistent service and great deal."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

36 neighbors recently requested a quote
Recommended by88%of homeowners
Cumberland Valley Lock and Key, LLC
New to Angi
Hardware, Latches & Tracks (Door) - Repair or ReplaceLocksmithLocksmith - Auto+1 more

Serving Greencastle, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

We are a locally owned and operated company that values transparency and integrity, and treats your home as if it were our own. We offer traditional residential and commercial locksmiith services including but not limited to house/business rekey, key duplication, designing master systems, antique lock repair and refurbish, and servicing commercial locks and panic/exit devices. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! \n

Avatar for Frontpoint
Frontpoint
4.7(
8,819
)
Security Safe - Install

Serving Greencastle, PA and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"I had a bit of trouble with my molding around the doors vs how the system was designed. The tech guy hung with me for 39 minutes until it was perfect. I called customer service a couple times after that with questions that came up. The customer service team are professional and knowledgeable."
Recommended by93%of homeowners
Avatar for 1st Security USA
1st Security USA
4.6(
362
)
Security Safe - Install

Serving Greencastle, PA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I had a security system in place that had transferred ownership to 3 companies in total. I needed service on the system and received poor customer service and outrageous pricing for a small service needed. That inspired me to look elsewhere for a new security system provider. I came across Jeremy and Larry from 1st Security LLC and all I can say, being a person in the service industry, they came through big time. Not only were they punctual and knowledgeable, they were plain old nice !!!! From the quote with Jeremy to the install with Larry, it was a pleasurable experience and one that I would recommend over and over again."
Recommended by94%of homeowners
Avatar for CSI Secure Solutions
CSI Secure Solutions
4.4(
114
)
Security Safe - Install

Serving Greencastle, PA and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"I communicated with Rob Calbo for services of a background check with CSI Secure Solutions and he was fantastic.
He spoke with me in a very professional manner and put me at ease right away.
The process was seamless and my request was delivered very efficiently. Within just a few hours of providing them with information, I was able to get feedback. Rob took the time to speak with me and answered all of my questions. 
I will definitely be using them again in the future should the need arise, and I would definitely recommend them as being very efficient, professional and reliable.

"
Background Checks
Employee Check
Background Report
Surveillance
Infidelity Monitoring

+12

Recommended by85%of homeowners
Avatar for AIO Integrations LLC
AIO Integrations LLC
4.6(
18
)
Security Safe - Install

Serving Greencastle, PA and surrounding areas

In business since 2020

Emergency services offered

Credit card accepted

"There were many things wrong in my computer (my fault and letting grandchildren on computer) Robert was so helpful, gave me many good instructions to keep everything safe, which I have written down, feel like I have a new computer. He was so excellent and experienced, took his time and was meticulous about what needed to be done. He was a pleasure to work with and I will use this company again! Linda Disy"
Helping a Victim who was being Cyber-stocked
WIndows Update Broken
Computer Tune-up
Additional Photos
Recommended by91%of homeowners
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Locksmiths FAQs, answered by experts

Rekeying a lock changes the internal mechanism so that a new key works, while replacing a lock involves swapping out the entire hardware. Rekeying is a good, cost-effective option when you want to ensure old keys no longer work, such as after moving into a new home or losing a key. It's also ideal if you want to keep your existing lock hardware. You should opt to replace the locks entirely if you want to upgrade to a more secure or different style of lock, if the current lock is old or damaged, after a break-in, or if too many copies of the old key exist.

Aside from the labor costs, several other factors can impact the cost of hiring a locksmith. If you can avoid services during off-hours, you can save on fees often charged for urgent requests. Consider additional factors such as:

  • Type of services required

  • Emergency call fees

  • Home and lock location

  • Number of locks to repair or install

  • Peak hours

  • Type of locks

The best type of deadbolt depends on your specific needs. If accessibility is your primary concern, a single-cylinder deadbolt is the easiest to operate. Mortise locks are likely the most secure type of deadbolt you can install, but single-cylinders combined with secondary locking mechanisms like vertical locks are also a great option. Smart locks will give you the most flexibility to open and close your locks whenever and wherever you need to. 

When it comes to how to get a stuck key out of a lock, the simplest way is to use some kind of lubricating substance. One option is to apply graphite powder while wiggling the key gently. As the graphite fills the lock, jiggling should loosen the key enough to allow you to pull it out.

Yes, with better technology now available, it’s possible to add a smart lock on your sliding glass door. Smart locks can be easy for almost everyone in the family to operate and can connect to other safety features in the home, like smart lights. Plus, they’re harder for would-be criminals to pick. However, keep in mind that smart locks can potentially be hacked, and some completely rely on phones or Wi-Fi, which can be an issue if the power goes out.

The Greencastle, PA homeowners’ guide to locksmith services

From average costs to expert advice, get all the answers you need to get your job done.