Get matched with top locksmiths in Sullivan, NH

Q: Are keyless door locks safe to use?

• <div><p>In general, keyless door locks are considered safe, and their security depends on the type and quality of the lock. They cannot be picked like a traditional lock and often include added features like biometric access, PIN codes, and smartphone connectivity, which can make them more secure. However, they are not without risks. Potential vulnerabilities include hacking for Wi-Fi-connected models, battery failure, power outages, and technical malfunctions. To maximize security, it is important to choose a reliable brand, stay on top of software updates, and perform regular maintenance. While the risks are different, keyless locks are not considered more dangerous than traditional locks.</p></div>

Q: What deters burglars the most?

• <div><p>Security systems are one of the measures that deter burglars the most. Research suggests most burglars look for signs of a security system before going in, although the presence of a security system doesn&rsquo;t automatically mean they won&rsquo;t enter the home. However, a security system with cameras can decrease the chance of a burglary overall.</p></div>

Q: Can someone hack a smart lock?

• <div><p>As with any computer, smart locks can be hacked by someone with the technical skills to do so, but most people do not have that ability, making smart locks relatively safe. If you have any concerns about a compromised smart lock, opt for an encrypted smart lock, change your Wi-Fi password, and make sure that you only give out your password to trusted family and friends. </p></div>

Q: How much does it cost to change all your locks?

• <div><p>Expect to pay between <b>$50 to $200 </b>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.</p><p>Homeowners can save money by replacing locks themselves. A typical rekeying kit costs about <b>$10 to $25</b>. 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<b> $25</b>, while <a href="https://www.angi.com/articles/keyless-lock-good-regular-deadbolt.htm">electronic locks and smart locks</a> 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.</p></div>

Q: What is the most secure type of lock for a house's exterior doors?

• <div><p>Security experts recommend deadbolt locks as the most secure option for a house's exterior or entry doors. Deadbolts provide the best security because they can prevent most types of forced entry and are harder to lockpick. Common types include the standard single-cylinder deadbolt, which is often found on front doors. For enhanced security, you can opt for a double-cylinder deadbolt, which requires a key to operate from both the inside and the outside.</p></div>

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Verified Reviews for Locksmith Service pros in Sullivan, NH

*The Angi rating for Locksmith Service companies in Sullivan, NH 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 Sullivan, NH 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 May 26, 2026

Reviewed in May 2026
Fast and professional. I would hire him for my future projects
Noyes Electric
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Reviewed in February 2026
Justin was professional, on time, and made the repair an easy, stress-free experience. I strongly recommend Justin for any work you need. AAA+++
County Line Plumbing and Heating
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Reviewed in September 2025
Roberto, the proprietor and owner of Edgewood Drywall services is a master craftsman who does the highest quality work. His extensive experience as a union carpenter and as an independent contractor shows in all his work. He gets the job done right, fast, and is unbelievably reasonable in his...
Edgewood Drywall Services
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Reviewed in July 2025
Charles Watson responded promptly through Angie's List and got the job done quickly and professionally, for a very reasonable price. We would be c=glad to use him again
Inside-Out Maintenance
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Reviewed in October 2022
These guys were very fast hard workers and very wonderful to work with! Definitely will hire them again!!!
The Handyman
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Reviewed in May 2022
Excellent work. Both gentlemen Paul mccafferty and Garrett clark were efficient knowledgeable and very professional. Iâ m happy with my new door
Newpro Operating, LLC
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Reviewed in September 2021
He cleaned the job site after replacing the overhead door opener.
Keene Door
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Reviewed in August 2018
Christopher is professional and an excellent locksmith . He went beyond the call of his services to get the job done . I highly recommend his services. Aside from being a very skilled locksmith he is a very nice person. His rates are very reasonable.
CF Locksmith
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Find Locksmiths in Sullivan

Home Service

4.2(

)

Serving Sullivan, NH and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"I do not typically write reviews but Locksmith downtown was excellent! They were incredibly responsive and solved my issue very quickly. They were very nice and professional and I would recommend their services to anyone!"

1426 neighbors recently requested a quote

Recommended by10%of homeowners

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Summit Lock and Key, LLC

4.1(

)

Serving Sullivan, NH and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"The technician drove two hours to help me, when none of other company would What a good person!!"

Response time1 day

Recommended by66%of homeowners

Serving Sullivan, NH and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"It went fast and smooth. Great job and will use him again."

Recommended by100%of homeowners

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Commonwealth Locksmith and Security

New to Angi

Serving Sullivan, NH and surrounding areas

In business since 1995

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty, integrity, and treats your home as if it were our own. You will find us to be competitively priced, while still paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction. Give us a call today to get your project started!

Response time6 hrs

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All American Auto Locksmith LLC

New to Angi

Serving Sullivan, NH and surrounding areas

In business since 2022

Free estimates

Credit card accepted

All American Auto Locksmith LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

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Pins & Wafers

New to Angi

Serving Sullivan, NH and surrounding areas

In business since 2020

Free estimates

Credit card accepted

provides exceptional service to the surrounding areas. Always taking pride in all of our services. Whatever your home improvement needs may be, you can count on our company to leave you satisfied and happy. Our customer satisfaction is our top priority. We will earn your trust for a lifetime. We believe in making all clients repeat clients. Our staff listens to your needs regarding your home improvement project.\n \nCall us today you'll be relieved you did. Thank you

Serving Sullivan, NH and surrounding areas

In business since 2020

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We specialize in Vinyl Replacement Windows, Aluminum Gutter Installation and Repair, as well as Vinyl Siding. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

Response time1 day

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Locksmiths questions, answered by experts

In general, keyless door locks are considered safe, and their security depends on the type and quality of the lock. They cannot be picked like a traditional lock and often include added features like biometric access, PIN codes, and smartphone connectivity, which can make them more secure. However, they are not without risks. Potential vulnerabilities include hacking for Wi-Fi-connected models, battery failure, power outages, and technical malfunctions. To maximize security, it is important to choose a reliable brand, stay on top of software updates, and perform regular maintenance. While the risks are different, keyless locks are not considered more dangerous than traditional locks.

Security systems are one of the measures that deter burglars the most. Research suggests most burglars look for signs of a security system before going in, although the presence of a security system doesn’t automatically mean they won’t enter the home. However, a security system with cameras can decrease the chance of a burglary overall.

As with any computer, smart locks can be hacked by someone with the technical skills to do so, but most people do not have that ability, making smart locks relatively safe. If you have any concerns about a compromised smart lock, opt for an encrypted smart lock, change your Wi-Fi password, and make sure that you only give out your password to trusted family and friends.

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.

Security experts recommend deadbolt locks as the most secure option for a house's exterior or entry doors. Deadbolts provide the best security because they can prevent most types of forced entry and are harder to lockpick. Common types include the standard single-cylinder deadbolt, which is often found on front doors. For enhanced security, you can opt for a double-cylinder deadbolt, which requires a key to operate from both the inside and the outside.

The Sullivan, NH homeowners’ guide to locksmith services

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

See all articles

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May 5, 2026May 5, 2026
How Much Does It Cost to Copy a Key? [2026 Data]
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How Much Does a Locksmith Cost? [2026 Data]
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Which Is Better: Rekeying vs. Changing Locks?
Rekeying or replacing your locks are upgrades you can make to boost your home’s security. Learn about their differences to decide which solution is best for you.
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Apr 4, 2026Apr 4, 2026
How to Repair Your Door Lock in 8 Simple Steps
Discover how to fix a door lock. These steps provide expert guidance. Learn how to troubleshoot and repair common issues.
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May 22, 2026May 22, 2026
Put Keys on Lockdown to Prevent Cyber Copying
Cyber locksmiths can duplicate keys using nothing more than photos. Should you be worried about unauthorized copying of your keys …and what can you do about it?