Top-rated locksmiths.

Get matched with top locksmiths in Great Mills, MD

Enter your zip and get matched with up to 5 pros

Need a pro for your locksmith service project in Great Mills, MD?

Select your specific project to find the pro for you.

Verified Reviews for Locksmith Service pros in Great Mills, MD

*The Angi rating for Locksmith Service companies in Great Mills, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Locksmith Service needs.

*The HomeAdvisor rating for Locksmith Service companies in Great Mills, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Locksmith Service needs.

Last update on May 07, 2026

Find Locksmiths in Great Mills

Avatar for Linares Construction Llc
Linares Construction Llc
5.0(
32
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Great Mills, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Credit card accepted

"Excellent work on installing the kitchen backsplash and significant attention to detail. They are very tidy. I would hire them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+116

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Request Quote
Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

Serving Great Mills, MD and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"SafeStreets’ alarm system is fantastic. The motion sensors, door/window contacts, and cameras work flawlessly. The home automation features are a huge plus—I can control everything from my phone. Highly recommend SafeStreets to anyone looking for reliable security."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

6 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Avatar for ADT
ADT
4.5(
880
)
Security Safe - Install

Serving Great Mills, MD 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

60 neighbors recently requested a quote
Recommended by89%of homeowners
Request Quote
Avatar for All United Locksmith
All United Locksmith
4.5(
75
)
Locksmith - Auto

Serving Great Mills, MD and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"Nice job!! I had another locksmith come and they could'n fix the problem; this company did !! I think they are wonderful!"
Response time5 hrs
Response rate89%
Recommended by95%of homeowners
Request Quote
Avatar for Baldino’s Lock & Key (VA & MD Suburbs)
Baldino’s Lock & Key (VA & MD Suburbs)
5.0(
28
)
LocksmithLocksmith - AutoLocksmith - For Business+1 more

Serving Great Mills, MD and surrounding areas

In business since 1961

Free estimates

Emergency services offered

"The locksmith was here at the front end of the window.  I bought my own locks so there was no need to make new keys.  The locksmith provided exceptional service -- will definitely use again if I have a need.
"
Property Management Show
Medeco Award
Newington Shop Exterior
Recommended by96%of homeowners
Request Quote
Baldino’s Lock & Key
4.5(
15
)
LocksmithLocksmith - AutoLocksmith - For Business+1 more

Serving Great Mills, MD and surrounding areas

In business since 1965

Free estimates

Emergency services offered

"GREAT PLACE!  Two years ago, a neighbor recommended Baldino's when I wanted to change the locks on my home.  Their Clarendon branch performed that service (promptly and with great customer service!).  
This time, I needed to unlock a pricey suitcase that I inadvertently locked while I was changing the lock's combination.  I called the manufacturer first.  They suggested that perhaps a locksmith could do it, sparing me the $75 it would cost me to ship it to them for repair.  So, I called Baldino's main line, explained the problem, and they recommeneded Chris at the Landmark location.  They said he was one of their most experienced locksmiths, and they were sure he could handle this. And he did!  Took him only a few minutes. Both Chris and the colleague he was working with at the shop (part time, retired Pentagon guy) were very polite, friendly, answered my questions and didn't make me feel silly for accidently locking the suitcase!  I'd go back anytime.  I'll be sure to use them for any future needs.
"
Recommended by92%of homeowners
Request Quote
C. D. Lock & Key, LLC
4.3(
84
)
LocksmithLocksmith - AutoLocksmith - For Business+1 more

Serving Great Mills, MD and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"I would recommend them to a friend pending on their situation. If my friend need a locksmith right away, I would recommend C. D. Lock & Key, LCC. I did not hire C. D. Lock due to the price, and I wanted someone local that would not charge an expenses service charge."
Recommended by87%of homeowners
Request Quote
...
Showing 1-10 of 140
Locksmiths questions, answered by experts

Changing door locks is a task that most homeowners can accomplish on their own. Standard door knobs are quite straightforward, and even more advanced locks, like electronic or smart locks, generally come with instructions. That said, the process can be time-consuming, especially if you plan to replace multiple locks around the house. It’s also a task that you want to complete correctly, considering that it affects the security of your house. That’s why hiring a pro is often best when changing your door locks.

Door locks should be changed roughly every seven years. The average lifespan of a door lock is seven to 10 years, so it’s best to err on the side of caution and change them early, especially if they are showing signs of wear and tear. Examples of deterioration include visible rust and difficulty opening or closing the door. Some locks can work safely beyond 10 years, but it depends on how often they are used and whether they are exposed to damaging environmental conditions like precipitation or extreme temperatures.

Security systems are one of the measures that deter burglars the most. Research suggests most burglars look for signs of a security system before going in, although the presence of a security system doesn’t automatically mean they won’t enter the home. However, a security system with cameras can decrease the chance of a burglary overall.

Yes, most pros encourage you to change your locks when you move into a new home. While the previous owner may hand you their keys, you have no way of knowing whether other copies exist elsewhere. Changing your locks as soon as you move in is a great way to ensure that you can enjoy new, fully functioning locks that will work with your unique key or code.

Newer, electric-powered door locks generally have a life span of five years or less. That’s thanks, in large part, to a phenomenon called planned obsolescence, in which products are programmed to need replacing after a certain amount of time. That’s also why older, manual, push-key locksets can last up to 30 years with regular cleanings and maintenance. When it does come time for a new set-up, know that the cost to change locks ranges from $130 to $500 on average.

The Great Mills, MD homeowners’ guide to locksmith services

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

See all articles