
Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"The installation went smoothly and the locksmith was accommodating."





+57

*The Angi rating for Locksmith Service companies in Jefferson, 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 Jefferson, 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 July 24, 2026

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"The installation went smoothly and the locksmith was accommodating."





+57

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Emergency services offered
"Quick and fast service. Reasonable price very professional. The best locksmith I’ve had."





+8

Serving Jefferson, MD and surrounding areas
Approved (Corporate)
In business since 2010
Free estimates
Emergency services offered
"Wesley Boudreau (ADT) is fantastic. He is friendly, knowledgeable and knows the product. Gave our family advise and great suggestions. Outstanding service provided, including the technician Jesse. I strongly recommend Alarm Protection Group for home safety and security."





+1

Serving Jefferson, 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."





+35

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Emergency services offered
"I will definitely hire this company again"





+25

Serving Jefferson, MD and surrounding areas
In business since 2018
Free estimates
Emergency services offered
"This is the best locksmith I've ever met."
Serving Jefferson, MD and surrounding areas
In business since 1983
"Front Door locks broken on my home. Had to take off work, no way to secure my home. Home Advisor put me touch with Colonial Lock Service, Inc. the gentleman on the phone tried to help trouble shoot the problem when that failed a locksmith was dispatched. The locksmith called and said I will be there in an hour. This young man showed up on time and said don't worry I hear to make it better. He had such great friendly personality and did a great job. He replaced both of my locks and said "Sir your new locks turn like butter now". Well that made my laugh but he was so right, my locks never worked so good. It appears when the door was replace 15 years ago the locks never really lined up right. The replacement locks were are not your local hardware style, much better quality. I was quoted a price which having never used a locksmith before I thought was high, however the quick response, great service, better then average hardware and most of all the locksmith had a great friendly attitude. The price was right. This young man shook my hand and thanked me. Right when I thought there was no more good customer service in this world, WOW!"

Serving Jefferson, MD and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"The initial call was a bit sales-y but that is typical. It was easy to go through although I would have liked them to be more up front about the contract.
A couple weeks later they shipped the security system to my house and I was able to put it together pretty easily. One note: if your door has a recessed frame you don't have to use the in-door system. With a bit of ingenuity you can work out how to get the external ones to work. They can meet at right angles.
Other than that you call to get it activated. The people on the phone are professional and knowledgeable. So far I'm satisfied.
"

Serving Jefferson, MD and surrounding areas
In business since 2002
Free estimates
Emergency services offered
"Perfectly. Clean and neat intsllation. Professional technician"

Serving Jefferson, MD 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.
"





+12
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