How can I get a copy of my key without the original?

• <div><p>If you don’t have your original key, the easiest way to obtain a copy is to call a locksmith. For house keys, your locksmith has several options for configuring a new key: </p><ul><li><p>They can input a lock’s identification code into a database to obtain key-cutting instructions.</p></li><li><p>They could analyze the lock cylinder to determine how to cut a new key.</p></li><li><p>They can create an impression of the lock cylinder from which to cut a new key. </p></li></ul><p></p></div>

Can you install a deadbolt in a hollow core door?

• <div><p>Yes, as long as it’s thick enough for the deadbolt. Most interior hollow core doors are at least 1 1/2-inches thick, which is usually the minimum requirement for a deadbolt. You’ll want to find the lock block first before installing. Also, most hollow doors require additional reinforcement for locks, such as a reinforcement plate or plywood block.</p></div>

Get matched with top locksmiths in Sullivan, NH

Q: Can a burglar get through a deadbolt?

• <div><p>Yes, it&rsquo;s possible a burglar can get through a deadbolt. Some types of deadbolts are harder for an intruder to get through, though. For example, a single-cylinder lock only requires breaking a window nearby and simply turning it. While other locks, such as a double-cylinder lock, may offer greater protection and make it harder for an intruder, no deadbolt is 100 percent effective.</p></div>

Q: How can I get a copy of my key without the original?

• <div><p>If you don&rsquo;t have your original key, the easiest way to obtain a copy is to call a locksmith. For house keys, your locksmith has several options for configuring a new key: </p><ul><li><p>They can input a lock&rsquo;s identification code into a database to obtain key-cutting instructions.</p></li><li><p>They could analyze the lock cylinder to determine how to cut a new key.</p></li><li><p>They can create an impression of the lock cylinder from which to cut a new key. </p></li></ul><p></p></div>

Q: Can you install a deadbolt in a hollow core door?

• <div><p>Yes, as long as it&rsquo;s thick enough for the deadbolt. Most interior hollow core doors are at least 1 1/2-inches thick, which is usually the minimum requirement for a deadbolt. You&rsquo;ll want to find the lock block first before installing. Also, most hollow doors require additional reinforcement for locks, such as a reinforcement plate or plywood block.</p></div>

Q: What types of security solutions do commercial locksmiths offer?

• <div><p>Locksmiths offer keyless entry systems, high-security locks, panic bars, electronic access control, and biometric security solutions.</p></div>

Q: How long does it take to install or repair commercial locks?

• <div><p>Most jobs take 30 minutes to 2 hours, but high-security systems or multiple lock installations may require additional time.</p></div>

Enter your zip and get matched with up to 5 pros

Need a pro for your locksmith service project in Sullivan, NH?

Select your specific project to find the pro for you.

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
Request a quote
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
Request a quote
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
Request a quote
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
Request a quote
Reviewed in October 2022
These guys were very fast hard workers and very wonderful to work with! Definitely will hire them again!!!
The Handyman
Request a quote
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
Request a quote
Reviewed in September 2021
He cleaned the job site after replacing the overhead door opener.
Keene Door
Request a quote
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
Request a quote

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

Request Quote

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

Request Quote

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

Request Quote

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.

Request Quote

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

Request Quote

Locksmiths questions, answered by experts

Yes, it’s possible a burglar can get through a deadbolt. Some types of deadbolts are harder for an intruder to get through, though. For example, a single-cylinder lock only requires breaking a window nearby and simply turning it. While other locks, such as a double-cylinder lock, may offer greater protection and make it harder for an intruder, no deadbolt is 100 percent effective.

If you don’t have your original key, the easiest way to obtain a copy is to call a locksmith. For house keys, your locksmith has several options for configuring a new key:

They can input a lock’s identification code into a database to obtain key-cutting instructions.
They could analyze the lock cylinder to determine how to cut a new key.
They can create an impression of the lock cylinder from which to cut a new key.

Yes, as long as it’s thick enough for the deadbolt. Most interior hollow core doors are at least 1 1/2-inches thick, which is usually the minimum requirement for a deadbolt. You’ll want to find the lock block first before installing. Also, most hollow doors require additional reinforcement for locks, such as a reinforcement plate or plywood block.

Locksmiths offer keyless entry systems, high-security locks, panic bars, electronic access control, and biometric security solutions.

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

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

Angi
•
May 5, 2026May 5, 2026
How Much Does It Cost to Copy a Key? [2026 Data]
Wondering how much does it cost to copy a key? Discover prices, key types, and cost-saving tips to help you budget for your next key duplication.
Angi
•
Mar 17, 2026Mar 17, 2026
How Much Does a Locksmith Cost? [2026 Data]
Wondering how much a locksmith costs? Discover locksmith prices, key cost factors, and tips to save on home lockout, rekeying, and installation services.
Angi
•
Apr 6, 2026Apr 6, 2026
How Much Does Lock Replacement Cost? [2026 Data]
Uncover the cost of lock replacement. Discover labor, materials, and cost-saving tips for your next lock replacement project.
Kelly Weimert
•
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.
Xiao Faria daCunha
•
Mar 19, 2026Mar 19, 2026
Locked Out of Your House? Here's What to Do (and What Not Do)
Getting locked out of your house can be frustrating. Don’t panic, though; you have options if you’re stuck outside your home (even if you don’t have a spare key handy or a locksmith to call). Find out what to do—and what not to do—here.
Stephanie Mickelson
•
Apr 8, 2026Apr 8, 2026
The 12 Most Common Types of Door Locks
Each door lock has benefits, drawbacks, and uses. This guide covers 12 types of door locks, their attributes, and when to consider using them.