4.7 
92 *The Angi rating for Locksmith Service companies in Linthicum Heights, 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 Linthicum Heights, 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 June 04, 2026
Serving Linthicum Heights, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1960
Free estimates
Emergency services offered
"I got a call almost immediately with a quote, and the job was done the next day. Would recommend to anyone for any locksmith work!"
Serving Linthicum Heights, MD and surrounding areas
Approved
In business since 2016
Emergency services offered
Credit card accepted
"Responsive and on time. Locksmith was happy to slightly adjust the position of the lock for me after the initial installation."
+15
Serving Linthicum Heights, MD and surrounding areas
Approved
In business since 1962
Emergency services offered
Warranties offered
"Excellent. Technician Erick Perla was very courteous, professional, and prompt."
Serving Linthicum Heights, MD and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"The locksmith did an excellent job"
Serving Linthicum Heights, MD and surrounding areas
Approved (Corporate)
In business since 2010
Free estimates
Emergency services offered
"I called Alarm Protection Group AFTER my office was burglarized. Now I feel SAFE. William is great to work with. He's neat and tidy, prompt, presentable - not a butt-crack type of guy, and he doesn't leave a mess in his wake. He's also knowledgeable about the equipment and only uses high-quality products."
+1
Serving Linthicum Heights, MD and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"I was told arrival time would be 30-40 minutes. It was much longer (over 1 1/2 hours). But he did a fine job when got there. The real problem was the home advisor system. I had multiple companies contacting me and after I contracted with one, another called and lied, saying the locksmith in route did not work for company and saying he was coming instead. What a fiasco. I was at work and had just had a home break in. It was atrocious. I will not use home advisor again."
Serving Linthicum Heights, MD and surrounding areas
Approved
In business since 2005
Warranties offered
Credit card accepted
"Not the greatest results - I have used this company before and been very pleased. They were pricey, but the quality of the work was worth it. This was not the case this last time. The technician cracked the door jamb in two places while replacing the door, left paint splatters on the floor and on the side of the door which was not supposed to be painted and messed up the handset on the door. He did repair most of these issues (the paint splatters I cleaned up myself with paint thinner), but since he worked by the hour I ended up paying for that too."
+4
Serving Linthicum Heights, 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 Linthicum Heights, MD and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1874
Free estimates
Emergency services offered
"ADT is the best company 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 Linthicum Heights, MD and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Very good professional very friendly perform quality work very satisfied"
+47
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