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TRUSTED BY GROTON, MA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon25
    Verified locksmith services reviews

Find Locksmiths in Groton

"Awesome!!!"

David S G on October 2025

Your Neighborhood Locksmith proudly serves our customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!

"Awesome!!!"

David S G on October 2025


Star Locksmith

4.98(
441
)

Star Locksmith

4.98(
441
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Star Locksmith is a family owned and operated business that strives to provide you with outstanding customer service and we guarantee all of its work. Our master locksmiths have more than 20 years of experience in the field in order to provide you with quality workmanship that is both friendly and honest. We offer a variety of services to help each customer with his/her own needs. Our primary goal is to ensure customers satisfaction; therefore, we make sure that our customers receive the best service with affordable price. Star Locksmith provides a wide range of locksmith and security solutions to greater Boston and its metropolitan area. Our services, Residential, Commercial and Automotive, are always fast, reliable and professional. We ensure our work and stand behind our workmanship; which means we guarantee full client satisfaction. All our services are completely mobile and confidential; and when it comes to affordability, we have offer the most competitive prices. Owner operated. Cost is determined by the job. Additional phone - (617) 782-9204. Additional DBA - Star Locksmith LLC. Award winning. We offer Auto, Residential & Commercial lock out services, lock re-keying, and sales & installation of dead bolts and other locks.

"he didn't put the right lock. that guy called me 16 times."

Paige M on February 2023

Star Locksmith is a family owned and operated business that strives to provide you with outstanding customer service and we guarantee all of its work. Our master locksmiths have more than 20 years of experience in the field in order to provide you with quality workmanship that is both friendly and honest. We offer a variety of services to help each customer with his/her own needs. Our primary goal is to ensure customers satisfaction; therefore, we make sure that our customers receive the best service with affordable price. Star Locksmith provides a wide range of locksmith and security solutions to greater Boston and its metropolitan area. Our services, Residential, Commercial and Automotive, are always fast, reliable and professional. We ensure our work and stand behind our workmanship; which means we guarantee full client satisfaction. All our services are completely mobile and confidential; and when it comes to affordability, we have offer the most competitive prices. Owner operated. Cost is determined by the job. Additional phone - (617) 782-9204. Additional DBA - Star Locksmith LLC. Award winning. We offer Auto, Residential & Commercial lock out services, lock re-keying, and sales & installation of dead bolts and other locks.

"he didn't put the right lock. that guy called me 16 times."

Paige M on February 2023


Joseph's Lock and Safe

4.95(
44
)

Joseph's Lock and Safe

4.95(
44
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a local, independently owned full service locksmith company established in 1926. We have a large mobile fleet properly trained to take care of your security needs, and we have a large retail store & safe showroom located in the Canal District of Worcester. We sell and service all types of locks and safes. If you have any questions please don't hesitate to call.

"Arrived the same day as I called. Technician arrived right on time, and finished quickly. Throughly professional and capable. Price was below the estimate quoted on the phone. Overall, an outstanding job and experience."

Joe M on March 2020

We are a local, independently owned full service locksmith company established in 1926. We have a large mobile fleet properly trained to take care of your security needs, and we have a large retail store & safe showroom located in the Canal District of Worcester. We sell and service all types of locks and safes. If you have any questions please don't hesitate to call.

"Arrived the same day as I called. Technician arrived right on time, and finished quickly. Throughly professional and capable. Price was below the estimate quoted on the phone. Overall, an outstanding job and experience."

Joe M on March 2020


Avatar for Prime  Locksmith Mobile Service

Prime Locksmith Mobile Service

5.00(
25
)

Prime Locksmith Mobile Service

5.00(
25
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Prime Locksmith Mobile Service LLC is a locally owned and operated 24 hour mobile locksmith service covering a large portion of Eastern Massachusetts. Our coverage area includes all of Greater Boston, as well as most of the North and South shore, and the Metro West area as well. We take pride in our professional work ethic and ability to respond quickly to emergency situations. Our vehicles are equipped with some of the most state of the art key machines and key programmers, to help us keep up with the ever evolving industry of cutting various high security car keys. We use various resources to quickly gather information about our customers specific needs, so we can give accurate quotes for car keys right over the phone. We also provide lockout services for houses, cars, businesses, safes, or anything that anyone might find themselves locked out of. Customer satisfaction is our goal and we strive to keep our customers happy, so they can provide us with repeat work and word of mouth testimonials.

"It went very well, David went out of his way to make sure i was satisfied and made sure ecerythinf worked like oem for my jeep. Very good guy will use again for future issues."

Josue P on September 2023

Prime Locksmith Mobile Service LLC is a locally owned and operated 24 hour mobile locksmith service covering a large portion of Eastern Massachusetts. Our coverage area includes all of Greater Boston, as well as most of the North and South shore, and the Metro West area as well. We take pride in our professional work ethic and ability to respond quickly to emergency situations. Our vehicles are equipped with some of the most state of the art key machines and key programmers, to help us keep up with the ever evolving industry of cutting various high security car keys. We use various resources to quickly gather information about our customers specific needs, so we can give accurate quotes for car keys right over the phone. We also provide lockout services for houses, cars, businesses, safes, or anything that anyone might find themselves locked out of. Customer satisfaction is our goal and we strive to keep our customers happy, so they can provide us with repeat work and word of mouth testimonials.

"It went very well, David went out of his way to make sure i was satisfied and made sure ecerythinf worked like oem for my jeep. Very good guy will use again for future issues."

Josue P on September 2023



Chelmsford Lock & Key Inc

4.85(
27
)

Chelmsford Lock & Key Inc

4.85(
27
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

From items as simple as a door cylinder replacement, to the installation of high end architectural hardware and accent pieces, you can know that Chelmsford Lock & Key, Inc. will give you the same quality installation your friends and neighbors have come to trust. Started in 1965, Chelmsford Lock & Key, Inc. has been helping commercial and residential customers in the Essex area and Middle Essex county to protect their valuables through outstanding service, and high quality work. We are proud to present Merrimack Valley Lock & Key as a division of Chelmsford Lock & Key, Inc. In addition to the manufacturer's warranty that comes with each product we sell or install, we also back it up with a warranty of our own, so you can feel confident that no matter what you purchase, it will stand up to the test of time. Additional service area: Portions of Boxford Counties

"Service was excellent. Quality job! Same day service as my phone call! Very satisfied Would recommend to anyone. We would definitely hire them again."

Tracy C on February 2018

From items as simple as a door cylinder replacement, to the installation of high end architectural hardware and accent pieces, you can know that Chelmsford Lock & Key, Inc. will give you the same quality installation your friends and neighbors have come to trust. Started in 1965, Chelmsford Lock & Key, Inc. has been helping commercial and residential customers in the Essex area and Middle Essex county to protect their valuables through outstanding service, and high quality work. We are proud to present Merrimack Valley Lock & Key as a division of Chelmsford Lock & Key, Inc. In addition to the manufacturer's warranty that comes with each product we sell or install, we also back it up with a warranty of our own, so you can feel confident that no matter what you purchase, it will stand up to the test of time. Additional service area: Portions of Boxford Counties

"Service was excellent. Quality job! Same day service as my phone call! Very satisfied Would recommend to anyone. We would definitely hire them again."

Tracy C on February 2018


Avatar for Patriot Lock & Key

Patriot Lock & Key

4.75(
40
)

Patriot Lock & Key

4.75(
40
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Established in 1998, Patriot Lock has the experience and expertise to get the job done right the first time. Our skilled professionals use only the finest tools and materials, and we guarantee our work. Patriot Lock provides personalized front door service at affordable rates. Whether it's your home, office, business or commercial property, Patriot Lock is up for the challenge. No job is too big or too small to get the service you deserve. If you have any questions or comments, or would like to schedule an appointment, please contact us. Thank you, and we look forward to hearing from you. Also serving portions of Manchester-Nashua.

"He was prompt and professional. He got the job done. Was at my home less than 45 minutes and the price was exhorbitant! Will never use again."

Maria N on September 2020

Established in 1998, Patriot Lock has the experience and expertise to get the job done right the first time. Our skilled professionals use only the finest tools and materials, and we guarantee our work. Patriot Lock provides personalized front door service at affordable rates. Whether it's your home, office, business or commercial property, Patriot Lock is up for the challenge. No job is too big or too small to get the service you deserve. If you have any questions or comments, or would like to schedule an appointment, please contact us. Thank you, and we look forward to hearing from you. Also serving portions of Manchester-Nashua.

"He was prompt and professional. He got the job done. Was at my home less than 45 minutes and the price was exhorbitant! Will never use again."

Maria N on September 2020


Avatar for Joe's Lock & Door  Services

Joe's Lock & Door Services

5.00(
16
)

Joe's Lock & Door Services

5.00(
16
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family owned & operated business with more than 30yrs experience in locksmith, carpentry, doors, & windows. We provide all types of hardware repairs & installation on residential & commercial property, we pride our self in providing good service and good rates to our customer. We work with home owners, custom home builders, designers, & architect to install their fine hardware from around the world. We also provide all type of lock hardware,door & window hardware for our customer. Fully insured.

"Wonderful! Joe was professional, responded quickly, made very thoughtful suggestions about the scope of the work. He was quick and responsive and did a perfect job."

Ruthann R on December 2019

We are a family owned & operated business with more than 30yrs experience in locksmith, carpentry, doors, & windows. We provide all types of hardware repairs & installation on residential & commercial property, we pride our self in providing good service and good rates to our customer. We work with home owners, custom home builders, designers, & architect to install their fine hardware from around the world. We also provide all type of lock hardware,door & window hardware for our customer. Fully insured.

"Wonderful! Joe was professional, responded quickly, made very thoughtful suggestions about the scope of the work. He was quick and responsive and did a perfect job."

Ruthann R on December 2019


Avatar for ACE Handyman Services of Greater Boston

ACE Handyman Services of Greater Boston

4.62(
477
)

ACE Handyman Services of Greater Boston

4.62(
477
)
Customers say: Super punctual
2005 years of experience

After serving the Greater Boston and MetroWest markets for 14 years, Handyman Matters of Greater Boston is excited to join forces with ACE Hardware to re-brand as ACE Handyman Service Greater Boston! ACE Handyman Services has been serving the Greater Boston and MetroWest areas since 2005. In that time we have completed over 6,000 jobs for more than 2,500 customers. We are proud that 50% of our on-going business comes from customers we've done business with in the past. We are an 11-time Super Service Award winner!

"One word…Awesome! The whole experience was painless. I initially submitted an online request for a quote and by answering some simple questions as well as uploading a few photos of what I needed done, I was then contacted by a really kind woman in their Lexington office. She provided a quote and set me up with a handyman named Matt who was absolutely amazing to work with! Matt was very professional and knowledgeable. He took time to explain to me what he was doing at various stages of the projects. One project consisted of removing an ugly weather-beaten decorative piece off the face of my house. Matt not only removed the decorative piece, but took the time to clean the vinyl! The other consisted of removing and replacing cracked vinyl siding that was potentially allowing rain to get behind the vinyl. Matt took the initiative to build a water deflector that steered the water to my gutter instead. I’ll let the before and after pictures speak for themselves."

Kevin P on April 2025

After serving the Greater Boston and MetroWest markets for 14 years, Handyman Matters of Greater Boston is excited to join forces with ACE Hardware to re-brand as ACE Handyman Service Greater Boston! ACE Handyman Services has been serving the Greater Boston and MetroWest areas since 2005. In that time we have completed over 6,000 jobs for more than 2,500 customers. We are proud that 50% of our on-going business comes from customers we've done business with in the past. We are an 11-time Super Service Award winner!

"One word…Awesome! The whole experience was painless. I initially submitted an online request for a quote and by answering some simple questions as well as uploading a few photos of what I needed done, I was then contacted by a really kind woman in their Lexington office. She provided a quote and set me up with a handyman named Matt who was absolutely amazing to work with! Matt was very professional and knowledgeable. He took time to explain to me what he was doing at various stages of the projects. One project consisted of removing an ugly weather-beaten decorative piece off the face of my house. Matt not only removed the decorative piece, but took the time to clean the vinyl! The other consisted of removing and replacing cracked vinyl siding that was potentially allowing rain to get behind the vinyl. Matt took the initiative to build a water deflector that steered the water to my gutter instead. I’ll let the before and after pictures speak for themselves."

Kevin P on April 2025


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Locksmiths questions, answered by experts

Keyless locks are great for convenience, letting you unlock doors with a code or your phone so you don't need to carry keys around. They also often come with helpful features like temporary codes for guests. On the downside, they can be more costly up front and do require batteries that will eventually need replacing. If you value ease of use and additional security features, keyless locks are worth the investment.

Regrettably, entirely pick-proof locks don't exist unless you opt for keyless varieties. Locks advertised as "pick-proof" are, in reality, more resilient against lock-picking and bumping attempts because of complex mechanisms consisting of pins and sidebars. These locks work like this—they assign two tasks to the key, enhancing security by making unauthorized entry more challenging.

When it comes to how to get a stuck key out of a lock, the simplest way is to use some kind of lubricating substance. One option is to apply graphite powder while wiggling the key gently. As the graphite fills the lock, jiggling should loosen the key enough to allow you to pull it out.

Expect to pay between $50 to $200 if you hire a locksmith to change your locks. That figure includes labor and the cost of basic hardware. The cost will naturally be higher if you plan to install more expensive locks, like smart locks, and if you need a lot of them.

Homeowners can save money by replacing locks themselves. A typical rekeying kit costs about $10 to $25. The only additional cost is purchasing new house keys, and those are no more than a few dollars per key. If you want to replace the locks on your own completely, the main cost is the price of the locks themselves. A standard knob-style lock starts around $25, while electronic locks and smart locks will run in the hundreds of dollars. The only additional tools you should need are a tape measure, screwdriver, and screws if they are not already provided.

Lock picking is a relatively subtle method of unauthorized access, making it hard to detect. But there are telltale signs to look for. First, look for scratches or tool marks around the keyhole or the lock's surface. Also, check for loose or misaligned components, like a wonky strike plate, which could indicate tampering. Consulting a locksmith or security professional for an assessment can provide valuable insights, too. Investing in high-quality locks and considering additional security measures, like security cameras, can help deter potential intruders and enhance your overall safety.

The Groton, MA homeowners’ guide to locksmith services

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