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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon87
    Verified locksmith services reviews

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Avatar for Cornerstone Garage Door Company LLC

Cornerstone Garage Door Company LLC

4.99(
268
)

Cornerstone Garage Door Company LLC

4.99(
268
)
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

Cornerstone Door Company is a family owned and operated business which has been serving Middle Tenneessee for over 24 years. We were first licensed in 1994. Prior to then, brothers, Jim and Larry, managed and provided service for the garage door division of Mastercraft Home Improvement from 1977 until its owner retired in 1993. With this background between them, they have a combined total of more than 70 years experience in the garage door industry. As Cornerstone has grown over the years, we have been able to expand and establish a loyal customer base. More of our family members have become involved and we are grateful to be able to say that even during the past economic turmoil, our business continued to grow. We look forward to earning the trust of more homeowners in the Middle Tennessee area and appreciate the opportunity to serve.

"Cornerstone came out same day and put in a new door for us. Great service! Great price! Our second door from them!"

Alan F on May 2024

Cornerstone Door Company is a family owned and operated business which has been serving Middle Tenneessee for over 24 years. We were first licensed in 1994. Prior to then, brothers, Jim and Larry, managed and provided service for the garage door division of Mastercraft Home Improvement from 1977 until its owner retired in 1993. With this background between them, they have a combined total of more than 70 years experience in the garage door industry. As Cornerstone has grown over the years, we have been able to expand and establish a loyal customer base. More of our family members have become involved and we are grateful to be able to say that even during the past economic turmoil, our business continued to grow. We look forward to earning the trust of more homeowners in the Middle Tennessee area and appreciate the opportunity to serve.

"Cornerstone came out same day and put in a new door for us. Great service! Great price! Our second door from them!"

Alan F on May 2024


Avatar for Carlos Locksmith

Carlos Locksmith

4.98(
63
)

Carlos Locksmith

4.98(
63
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Nashville Locksmith has served the Nashville and surrounding areas for 18 years. Carlos Locksmith is a licensed TN locksmithTN Firm #22.Residential and commercial repairs, installation of lock, security & access control systems.We have every solution you need for all your locksmith problems. Apart from the usual installation, repair, maintenance and upgrades of all kinds and brands of hardware, we provide the following services and more Lock repair •High security locks • Key automotive and cutting key services •Master key services •Intercom systems install / repair •File cabinet locks •24 hour locksmith TN Locksmith license #22

"Carlos and his family did a fantastic job! They were on time, fast, professional, and friendly. Carlos gave us excellent advice regarding our locks. Highly recommend and would hire again."

Christine S on January 2021

Nashville Locksmith has served the Nashville and surrounding areas for 18 years. Carlos Locksmith is a licensed TN locksmithTN Firm #22.Residential and commercial repairs, installation of lock, security & access control systems.We have every solution you need for all your locksmith problems. Apart from the usual installation, repair, maintenance and upgrades of all kinds and brands of hardware, we provide the following services and more Lock repair •High security locks • Key automotive and cutting key services •Master key services •Intercom systems install / repair •File cabinet locks •24 hour locksmith TN Locksmith license #22

"Carlos and his family did a fantastic job! They were on time, fast, professional, and friendly. Carlos gave us excellent advice regarding our locks. Highly recommend and would hire again."

Christine S on January 2021


Avatar for Guardian Protection

Guardian Protection

4.74(
2,120
)

Guardian Protection

4.74(
2,120
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

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


"Kevin was outstanding, I recommend this service to anybody needing lock or key services. I had lost my keys to my 1987 Bronco and Kevin was able to grain full access. I needed full service replacement of ignition and door locks and keys. He was able to do this quickly and for a good price. He actually made a house call bringing his mobile workshop to my job. Everything was taken care of from getting the parts at the parts store and installing it to get me working. Very professional and very reasonable. I highly recommend this service."

Allan D on November 2023

Locally owned and operated, we provide traditional lock and key services and repair to those who need it now. Fast. Reliable. Your local locksmith is Cool Springs Lock & Key.

"Kevin was outstanding, I recommend this service to anybody needing lock or key services. I had lost my keys to my 1987 Bronco and Kevin was able to grain full access. I needed full service replacement of ignition and door locks and keys. He was able to do this quickly and for a good price. He actually made a house call bringing his mobile workshop to my job. Everything was taken care of from getting the parts at the parts store and installing it to get me working. Very professional and very reasonable. I highly recommend this service."

Allan D on November 2023



"Landmark Uses Disreputable Contractors ? AZA Repair & Brenovations HVAC Are the Worst Landmark sent AZA Repair for my refrigerator, and they left it worse than before?still not working, scorch marks from a blowtorch, copper lines sticking out, tools and oil left behind, and no receipt. Then Landmark sent Brenovations HVAC for an AC motor replacement, and that turned into exposed wires, bolts hitting fan blades, missing parts, and complete disregard for safety near my kids? play area. Both companies were unprofessional, negligent, and refused accountability. Landmark?s use of these contractors makes me seriously question the value of having a home warranty at all."

Michael B on October 2025

Landmark Home Warranty is a publicly held company committed to offering the highest level of service for all of your home warranty needs.

"Landmark Uses Disreputable Contractors ? AZA Repair & Brenovations HVAC Are the Worst Landmark sent AZA Repair for my refrigerator, and they left it worse than before?still not working, scorch marks from a blowtorch, copper lines sticking out, tools and oil left behind, and no receipt. Then Landmark sent Brenovations HVAC for an AC motor replacement, and that turned into exposed wires, bolts hitting fan blades, missing parts, and complete disregard for safety near my kids? play area. Both companies were unprofessional, negligent, and refused accountability. Landmark?s use of these contractors makes me seriously question the value of having a home warranty at all."

Michael B on October 2025



"The service provider came within the allotted time window, was friendly, and did good job."

Christine A on January 2019

Your security is our business!

"The service provider came within the allotted time window, was friendly, and did good job."

Christine A on January 2019



See website for additional service area. Additional DBAs - Mark Brasfield, The Safe House.

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Locksmiths questions, answered by experts

Standard residential deadbolt locks come with a steel bolt that locks your door into place using a key (or keypad) on one side and a thumb turn on the other. When you lock it, the bolt slides into a strike plate on your door jamb to secure your door shut.

It’s best to avoid using oil-based lubricants within a lock because they attract larger amounts of dust and debris. When this occurs, it can make it harder for you to operate the lock, or it can even cause damage to the internal locking mechanism. A dry lubricant is the ideal solution instead.

Rekeying door locks yourself costs a fraction of what you would expect to pay a locksmith. On average, it costs between $50 to $100 to hire a local locksmith to rekey your house, though labor costs may vary based on where you live. For a DIY solution, you can expect to spend $11 to $25 on a rekeying kit.

Most jobs take 30 minutes to 2 hours, but high-security systems or multiple lock installations may require additional time.

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.

The Cottontown, TN homeowners’ guide to locksmith services

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