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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon54
    Verified locksmith services reviews

Find Locksmiths in Monmouth Junction

Avatar for Accurate Locksmith

Accurate Locksmith

4.71(
45
)
•Approved Pro

Accurate Locksmith

4.71(
45
)
•Approved Pro
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
1989 years of experience

I specialize in same day service. Please call for immediate assistance rather than email. Accurate locksmiths has been in continuous service in the Mercer County NJ and Buck County PA areas for over 25 years. Providing Bonded and Insured Locksmiths and Security Consultants to Homeowners, Business and Industry.

"He was punctual, very professional, including his truck and equipment. Everything went without a hitch. He had the parts he needed on his truck. Very friendly and I would absolutely recommend him highly to anyone with locksmith needs, and of course I would use him again without hesitation."

Randy G on March 2025

I specialize in same day service. Please call for immediate assistance rather than email. Accurate locksmiths has been in continuous service in the Mercer County NJ and Buck County PA areas for over 25 years. Providing Bonded and Insured Locksmiths and Security Consultants to Homeowners, Business and Industry.

"He was punctual, very professional, including his truck and equipment. Everything went without a hitch. He had the parts he needed on his truck. Very friendly and I would absolutely recommend him highly to anyone with locksmith needs, and of course I would use him again without hesitation."

Randy G on March 2025

Avatar for 24 Hour Locksmith LLC

24 Hour Locksmith LLC

4.89(
9
)
•Approved Pro

24 Hour Locksmith LLC

4.89(
9
)
•Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2024 years of experience

We specialize in locksmith services, 24 hours a day! We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"We were not locked out, but our key only worked with great difficulty. We called late Saturday night and he came on Sunday. No one else answered the phone or even called me back. He answered the phone late Saturday night and made an appointment the next day. He replaced our lock. Sunny was kind and efficient. His tech couldn't make it, so he came himself. He was very polite and easy to work with. Sunny is a hero!"

Sarah G on October 2025

We specialize in locksmith services, 24 hours a day! We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"We were not locked out, but our key only worked with great difficulty. We called late Saturday night and he came on Sunday. No one else answered the phone or even called me back. He answered the phone late Saturday night and made an appointment the next day. He replaced our lock. Sunny was kind and efficient. His tech couldn't make it, so he came himself. He was very polite and easy to work with. Sunny is a hero!"

Sarah G on October 2025

Jack's Locksmith, LLC

4.97(
221
)

Jack's Locksmith, LLC

4.97(
221
)
Customers say: Quick response
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

CALL 908-510-1173 FOR FASTEST RESPONSE. You can also email me directly at [email protected]. SERVING MIDDLESEX AND UNION COUNTIES IN CENTRAL NJ Full Service Licensed Locksmith – 20 Years Experience Residential / Commercial / Industrial Safes - Opened / Repaired / Installed 100% Mobile Service - Lost Your Keys? No Problem, Keys Made on the Spot for Your Home or Business. - Damaged or Weak Door or Frame? Special Decorative Reinforcement Metal Plates for Doors and Frames. - Patio and Storm Door Locks. - Keyless Entry Locks. ALL WORK DONE BY OWNER.

"We set up an appointment quickly, Jack came on time, fixed the problems and did the work in about 45 minutes, made sure we were happy with the results, and charged a very reasonable price. He was cheerful and friendly. For this sort of problem, we would now not call anyone else."

William M on June 2022

CALL 908-510-1173 FOR FASTEST RESPONSE. You can also email me directly at [email protected]. SERVING MIDDLESEX AND UNION COUNTIES IN CENTRAL NJ Full Service Licensed Locksmith – 20 Years Experience Residential / Commercial / Industrial Safes - Opened / Repaired / Installed 100% Mobile Service - Lost Your Keys? No Problem, Keys Made on the Spot for Your Home or Business. - Damaged or Weak Door or Frame? Special Decorative Reinforcement Metal Plates for Doors and Frames. - Patio and Storm Door Locks. - Keyless Entry Locks. ALL WORK DONE BY OWNER.

"We set up an appointment quickly, Jack came on time, fixed the problems and did the work in about 45 minutes, made sure we were happy with the results, and charged a very reasonable price. He was cheerful and friendly. For this sort of problem, we would now not call anyone else."

William M on June 2022

Avatar for A-OK Locksmiths

A-OK Locksmiths

4.94(
216
)

A-OK Locksmiths

4.94(
216
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Full Service Mobile Locksmith.

"Fantastic! Very prompt, professional and did great job on very short notice."

Gitta H on July 2018

Full Service Mobile Locksmith.

"Fantastic! Very prompt, professional and did great job on very short notice."

Gitta H on July 2018

Avatar for N D SECURITY CO

N D SECURITY CO

5.00(
42
)

N D SECURITY CO

5.00(
42
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are family owned and operated by father and son, Steve and Nick DeSalvo. With over 48 years of service, we've become one of New Jersey's most trusted locksmiths, providing reliable and fast service to all our customers. Give us a call and receive help from residential, commercial, and industrial locksmiths. We are both bonded and registered with the FBI and hold an individual license with the State of New Jersey. When given a quote on the phone it is the price you are quoted, no surprises! We take great pride in our workmanship and look forward to doing business with you. Please call us today to schedule your appointment: (973) 625-5602

"Fantastic! Quick turnaround time (next day) and the locksmith came on time and changed the lock"

Susan V on December 2018

We are family owned and operated by father and son, Steve and Nick DeSalvo. With over 48 years of service, we've become one of New Jersey's most trusted locksmiths, providing reliable and fast service to all our customers. Give us a call and receive help from residential, commercial, and industrial locksmiths. We are both bonded and registered with the FBI and hold an individual license with the State of New Jersey. When given a quote on the phone it is the price you are quoted, no surprises! We take great pride in our workmanship and look forward to doing business with you. Please call us today to schedule your appointment: (973) 625-5602

"Fantastic! Quick turnaround time (next day) and the locksmith came on time and changed the lock"

Susan V on December 2018

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

Avatar for Secure For Sure LLC

Secure For Sure LLC

4.79(
232
)

Secure For Sure LLC

4.79(
232
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

With great workmanship and extensive experience, we have seen it all and are experts in our field. Licensed and insured, we will safely and securely ensure the job is done to your satisfaction. 24/7 emergency, nights, weekends and holidays at no extra charge! Call us today; (888) 691-4045. Additional email - [email protected]. Additional fax - (215) 394-8363.

"They came a little bit early which was good. They started the job and completed the job in a timely and professional matter. Highly would recommend them."

Bruce W on May 2023

With great workmanship and extensive experience, we have seen it all and are experts in our field. Licensed and insured, we will safely and securely ensure the job is done to your satisfaction. 24/7 emergency, nights, weekends and holidays at no extra charge! Call us today; (888) 691-4045. Additional email - [email protected]. Additional fax - (215) 394-8363.

"They came a little bit early which was good. They started the job and completed the job in a timely and professional matter. Highly would recommend them."

Bruce W on May 2023

Accurate Locksmith

4.87(
30
)

Accurate Locksmith

4.87(
30
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Accurate Locksmith Security Center is Ramsey NJ’s trusted commercial and residential locksmith specializing in lock changes, deadbolts and much more! Established in 1963, Accurate Locksmith is the only brick and mortar locksmith in Ramsey. We are insured, licensed and bonded in the state of New Jersey. A full service locksmith, our showroom is stocked with safes, residential and commercial hardware. We have over 5,700 different residential, commercial and automotive key blanks in stock.

Accurate Locksmith Security Center is Ramsey NJ’s trusted commercial and residential locksmith specializing in lock changes, deadbolts and much more! Established in 1963, Accurate Locksmith is the only brick and mortar locksmith in Ramsey. We are insured, licensed and bonded in the state of New Jersey. A full service locksmith, our showroom is stocked with safes, residential and commercial hardware. We have over 5,700 different residential, commercial and automotive key blanks in stock.

Jim's Handyman Service LLC

4.78(
83
)

Jim's Handyman Service LLC

4.78(
83
)
Customers say: Terrific value
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

3 employees. Uses subs for whole roofing. Cost is determined by the job. Travel charges may apply. No service fees except for estimates needed for closings and disaster insurance estimates (with no work planned on actually being done). Uses licensed electrical and plumbing subcontractors for all electrical and plumbing jobs. Phone is preferred method of contact. Award winning.

3 employees. Uses subs for whole roofing. Cost is determined by the job. Travel charges may apply. No service fees except for estimates needed for closings and disaster insurance estimates (with no work planned on actually being done). Uses licensed electrical and plumbing subcontractors for all electrical and plumbing jobs. Phone is preferred method of contact. Award winning.

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Locksmiths questions, answered by experts

There are different types of deadbolts. The most common type is a single-cylinder deadbolt, which you may recognize on your front door. This type of lock has a keyhole on the outside and a thumb turn on the inside. A double-cylinder deadbolt has two locking mechanisms and requires a key to engage on the inside as well as the outside. 

Over time, latch components may wear out or get grimy, leading to this problem. First, check for dirt, dust, or debris in the latch mechanism to ensure smooth operation. Use an aerosol duster and lubricant to clean and loosen. You may also need to tighten the screws in the component, adjust the strike plate, or replace the lock. If none of these steps resolve the problem, consult a professional locksmith.

Yes, many locksmiths offer 24/7 emergency services for business lockouts, broken keys, and security breaches.

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.

If you’re having an issue turning the key inside a lock, chances are there is dust or dirt buildup within the cylinder. The easiest solution is applying a dry lubricant to the lock, which loosens the dirt buildup. You may need to turn the key a few times for it to work properly again.

The Monmouth Junction, NJ homeowners’ guide to locksmith services

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

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