How long do digital door locks last?

• <div><p>Newer, electric-powered door locks generally have a life span of five years or less. That’s thanks, in large part, to a phenomenon called planned obsolescence, in which products are programmed to need replacing after a certain amount of time. That’s also why older, manual, push-key locksets can last up to 30 years with regular cleanings and maintenance. When it does come time for a new set-up, know that the <a href="https://www.angi.com/articles/change-door-locks-cost.htm">cost to change locks</a> ranges from <b>$130 to $500</b> on average. </p></div>

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Q: How do you get a stuck key out of a lock?

• <div><p>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.</p><p></p></div>

Q: How do you open a door with a broken key in the lock?

• <div><p>If part of the key is protruding out of the lock, you can use a pair of needle-nosed pliers or tweezers to gently turn the key in the lock to open the door. If the key is fully inserted into the lock, you may also be able to use a key extractor to help turn the key into the unlocked position. </p><p>But if the key breaks off halfway into the lock or you simply can&rsquo;t reach it to help engage the unlocking mechanisms, you should probably call a professional.</p></div>

Q: What is the best lubricant for a door lock?

• <div><p>It is best to use a dry lubricant, such as a Teflon-based option, for door locks. Unlike popular oil-based lubricants, dry lubricants leave a non-stick, water-repellent coating that does not attract dust, dirt, and other debris. Using an oil-based lubricant can cause these particles to build up inside the lock, making it difficult to operate or even damaging the internal mechanism. You can find dry lubricants, some of which are made specifically for locks, at most hardware stores.</p></div>

Q: What is the difference between a deadbolt and a regular lock?

• <div><p>A deadbolt differs from a regular lock in its design, construction, and security level. Regular locks are typically used for interior doors, such as for bedrooms and bathrooms, and provide minimal security. They are easy to install and use, often featuring a simple locking mechanism on the inside. In contrast, a deadbolt is one of the most secure locks you can install on an exterior door. Its internal construction is designed to withstand significant force, adding a crucial layer of security that can deter intruders. While deadbolts may be more expensive and complicated to install, they are cost-effective for the security they provide and are built to hold up to wear and tear.</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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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

Newer, electric-powered door locks generally have a life span of five years or less. That’s thanks, in large part, to a phenomenon called planned obsolescence, in which products are programmed to need replacing after a certain amount of time. That’s also why older, manual, push-key locksets can last up to 30 years with regular cleanings and maintenance. When it does come time for a new set-up, know that the cost to change locks ranges from $130 to $500 on average.

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.

If part of the key is protruding out of the lock, you can use a pair of needle-nosed pliers or tweezers to gently turn the key in the lock to open the door. If the key is fully inserted into the lock, you may also be able to use a key extractor to help turn the key into the unlocked position.

But if the key breaks off halfway into the lock or you simply can’t reach it to help engage the unlocking mechanisms, you should probably call a professional.

It is best to use a dry lubricant, such as a Teflon-based option, for door locks. Unlike popular oil-based lubricants, dry lubricants leave a non-stick, water-repellent coating that does not attract dust, dirt, and other debris. Using an oil-based lubricant can cause these particles to build up inside the lock, making it difficult to operate or even damaging the internal mechanism. You can find dry lubricants, some of which are made specifically for locks, at most hardware stores.

A deadbolt differs from a regular lock in its design, construction, and security level. Regular locks are typically used for interior doors, such as for bedrooms and bathrooms, and provide minimal security. They are easy to install and use, often featuring a simple locking mechanism on the inside. In contrast, a deadbolt is one of the most secure locks you can install on an exterior door. Its internal construction is designed to withstand significant force, adding a crucial layer of security that can deter intruders. While deadbolts may be more expensive and complicated to install, they are cost-effective for the security they provide and are built to hold up to wear and tear.

The Sullivan, NH homeowners’ guide to locksmith services

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