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Fast Mobile Locksmith, LLC
Fast Mobile Locksmith, LLC
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
"Prompt. Efficient. Polite. Professional. I would highly recommend Otari and Mobile Key Locksmith. "
Les E on December 2025
We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 8 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!
"Prompt. Efficient. Polite. Professional. I would highly recommend Otari and Mobile Key Locksmith. "
Les E on December 2025

Sure-Fit Security
Sure-Fit Security
14 employees. Use a subcontractor for occasional safe services. Additional phone - (301) 424-5544. Additional e-mail - [email protected].
"good service. technician was on time."
FAHAN A on May 2022
14 employees. Use a subcontractor for occasional safe services. Additional phone - (301) 424-5544. Additional e-mail - [email protected].
"good service. technician was on time."
FAHAN A on May 2022
Colonial Lock Service
Colonial Lock Service
Contact us at (410) 876-6296 in Carrolton, MD, for complete locksmith services.
Contact us at (410) 876-6296 in Carrolton, MD, for complete locksmith services.

Spencer's Safe & Lock
Spencer's Safe & Lock
Locksmith services, key duplication, car key and remotes cut and programmed, in-shop and onsite rekeying services, master key systems, residential and commercial locks.
"Excellent; this was the second time I have used Spencer Safe and Lock. The provided the same great, reliable service this time as the first. They will definitely be my go-to locksmith in the future."
Michael P on May 2020
Locksmith services, key duplication, car key and remotes cut and programmed, in-shop and onsite rekeying services, master key systems, residential and commercial locks.
"Excellent; this was the second time I have used Spencer Safe and Lock. The provided the same great, reliable service this time as the first. They will definitely be my go-to locksmith in the future."
Michael P on May 2020

Guardian Protection
Guardian Protection
Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.
"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."
William M on December 2024
Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.
"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."
William M on December 2024

Vintage Security
Vintage Security
Award winning! Vintage Security provides monitoring services and security systems to over 19,000 customers throughout the Northern Virginia, Washington D.C, and Maryland areas. We offer a complete line of hardwired and wireless equipment to protect your home and/or business. Vintage Security skilled installers and technicians will treat your home and/or business as though it were their own.
"I have been on this system for 3-4 years. The initial installation went ok, but the overall functionality and reliability of the system is poor. The basic alarm system works when you manually arm/ disarm it through the app or keypad. However, the alarm cannot be set up on an automated schedule, and NONE of the connected automation features work - lights, outlets, blinds, etc. I purchased the recommended products that the company promised would seamlessly integrate into the system during the sales pitch, but none of them work. They have sent technicians out a couple times but, even after installing bulky repeater boxes in about half a dozen outlets, the system cannot connect. I have submitted several tickets, but Vintage just closes them out and suggests that I self troubleshoot. Alternatively, I can pay for an Automation Maintenance package and they will send a technician out. Bottom line - their system is nothing more than a 1990's alarm with a keypad and phone app. They dont deliver on what they sell, and they try to charge extra for support that should be included."
James L on November 2020
Award winning! Vintage Security provides monitoring services and security systems to over 19,000 customers throughout the Northern Virginia, Washington D.C, and Maryland areas. We offer a complete line of hardwired and wireless equipment to protect your home and/or business. Vintage Security skilled installers and technicians will treat your home and/or business as though it were their own.
"I have been on this system for 3-4 years. The initial installation went ok, but the overall functionality and reliability of the system is poor. The basic alarm system works when you manually arm/ disarm it through the app or keypad. However, the alarm cannot be set up on an automated schedule, and NONE of the connected automation features work - lights, outlets, blinds, etc. I purchased the recommended products that the company promised would seamlessly integrate into the system during the sales pitch, but none of them work. They have sent technicians out a couple times but, even after installing bulky repeater boxes in about half a dozen outlets, the system cannot connect. I have submitted several tickets, but Vintage just closes them out and suggests that I self troubleshoot. Alternatively, I can pay for an Automation Maintenance package and they will send a technician out. Bottom line - their system is nothing more than a 1990's alarm with a keypad and phone app. They dont deliver on what they sell, and they try to charge extra for support that should be included."
James L on November 2020
"Very well with no problems"
Jackie K on February 2018
"Very well with no problems"
Jackie K on February 2018
Artie's Lock & Key
Artie's Lock & Key
Family owned & operated. Cost is determined by the job.
"A few days after moving into our "new" home, my wife mistakenly locked herself out of the house. We were planning on getting the locks changed anyway, but now we had an emergency lock-out situation as well. Artie's team responded promptly and professionally, and their prices were fair. (They even recommended that I keep the existing good-quality locks and simply have them re-keyed, rather than trying to sell me new locks.) I would recommend them to anyone looking for assistance with residential locksmith work."
Matthew F on January 2019
Family owned & operated. Cost is determined by the job.
"A few days after moving into our "new" home, my wife mistakenly locked herself out of the house. We were planning on getting the locks changed anyway, but now we had an emergency lock-out situation as well. Artie's team responded promptly and professionally, and their prices were fair. (They even recommended that I keep the existing good-quality locks and simply have them re-keyed, rather than trying to sell me new locks.) I would recommend them to anyone looking for assistance with residential locksmith work."
Matthew F on January 2019

Baldino’s Lock & Key (VA & MD Suburbs)
Baldino’s Lock & Key (VA & MD Suburbs)
Multiple storefront locations for fast convenient service and walk in service. Usually within 5 miles of your location. Baldino’s Lock & Key provides quality security products and locksmith services in Maryland, Washington, D.C., and Virginia, serving home and business owners since 1961. Our focus is on the new and exciting security products available today and we back them up with strong technical support and the quality service you deserve. With our friendly and knowledgeable staff to help guide you through the purchase and installation process, you can rest assured that protecting your family or business is our primary objective. Additional contact name - Additional phone numbers -(703) 550-0770, (301) 963-4440, (410) 561-0961.
"It went well. Service was quick and everything as was done properly."
Jonathan A on May 2018
Multiple storefront locations for fast convenient service and walk in service. Usually within 5 miles of your location. Baldino’s Lock & Key provides quality security products and locksmith services in Maryland, Washington, D.C., and Virginia, serving home and business owners since 1961. Our focus is on the new and exciting security products available today and we back them up with strong technical support and the quality service you deserve. With our friendly and knowledgeable staff to help guide you through the purchase and installation process, you can rest assured that protecting your family or business is our primary objective. Additional contact name - Additional phone numbers -(703) 550-0770, (301) 963-4440, (410) 561-0961.
"It went well. Service was quick and everything as was done properly."
Jonathan A on May 2018
The Mount Airy, MD homeowners’ guide to locksmith services
From average costs to expert advice, get all the answers you need to get your job done.
•Wondering how much does it cost to copy a key? Discover prices, key types, and cost-saving tips to help you budget for your next key duplication.
•Uncover the cost of lock replacement. Discover labor, materials, and cost-saving tips for your next lock replacement project.
•Discover the average deadbolt installation cost, price factors, and tips to save on your project. Learn how to budget for secure home upgrades.

It’s normal to fear break-ins, but knowing how to reinforce a door and its locks will give you the knowledge to keep your home safe at all times.

If your key isn’t turning in the lock, don’t panic! Use this guide to troubleshoot the problem and get your door back in working order.

Chances are, if you need to know how to get out a key stuck in a lock, you need a quick and easy solution. Try these easy DIY options so you can move on.
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