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Top-Rated Locksmiths in Sullivan - Updated Nov 2026

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

Serving Sullivan, MO and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"I would like to recognize employee Doug A at SafeStreet/ADT. We’ve had an old security system sitting in our house for over 15 years without service or functionality. He took the time to explain the differences between how the old systems work and how the new systems work. He was patient with us, and we are happy customers."
Additional Photos
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+1

5 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
886
)
Security Safe - Install

Serving Sullivan, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Walter and Glen at Protect Your Home Group with ADT are the best people to talk to in terms of security alarm. Being a locksmith myself I know how important it is to deal with the right people. I referred a lot of customers to them and so far they are happy with their service. I myself got one for my house. Thank you for a consistent service and great deal."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

36 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Matt's General Home Improvements
Matt's General Home Improvements
5.0(
22
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Sullivan, MO and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Great prompt service, very good workmanship. Worked well with me re. project. Recommend him to future customers. Finished the work I have tried to get done for several weeks now by others and did it the next day!! Great guy !!"
Response time8 hrs
Recommended by85%of homeowners
Avatar for LJC Painting
LJC Painting
5.0(
2
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Sullivan, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

We specialize in interior and exterior painting services, cabinet painting, staining, and more! We guarantee your satisfaction, and we won't leave until the job is done right. 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!

Replaced decking
Finished product
TopShield installed
Finished Product
Before Paint

+1

6 neighbors recently requested a quote
Recommended by100%of homeowners
Sean Redus
5.0(
1
)
Security Safe - Install

Serving Sullivan, MO and surrounding areas

Approved

Emergency services offered

Reliable, detail-oriented handyman with years of experience providing high-quality residential and commercial repair and maintenance services. I specialize in TV mounting, drywall repair, painting, door and lock repairs, furniture assembly, deck repairs, fixture installation, shelving, caulking, and general home maintenance. I take pride in delivering dependable workmanship, honest communication, and completing every job efficiently and correctly the first time. Whether you need a small repair or a larger project, I'm committed to providing professional service at a fair price and treating your home with respect. Customer satisfaction is always my top priority.

ASAP Lock and Key, LLC
5.0(
4
)
LocksmithLocksmith - AutoLocksmith - For Business

Serving Sullivan, MO and surrounding areas

In business since 2008

Free estimates

Credit card accepted

ASAP Lock and Key, LLC, is the only call you need to make for all your lock, safe and safety needs. \n \nWe carry an extensive line of safety locks for your home, business, hotel, safe, school, and more. Our electric locks are great for multiple users, without having to worry about who has keys, who doesn�t have keys, and where your lost keys have gone! We can program digital codes into all of our electric locks, and only you give out the number to those who need it. We carry alarm, keypad, and proximity locks from top brand names, including Unican, Kaba, Securtron, and Simplex. \n \nGive us a call today. \n

Recommended by100%of homeowners
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Locksmiths FAQs, answered by experts

Rekeying a lock changes the internal mechanism so that a new key works, while replacing a lock involves swapping out the entire hardware. Rekeying is a good, cost-effective option when you want to ensure old keys no longer work, such as after moving into a new home or losing a key. It's also ideal if you want to keep your existing lock hardware. You should opt to replace the locks entirely if you want to upgrade to a more secure or different style of lock, if the current lock is old or damaged, after a break-in, or if too many copies of the old key exist.

Lubricating a door lock is an important part of door lock maintenance. It involves taking the lubricant of your choice (it’s best to use whatever the lock’s manufacturer suggests) and spraying it directly into the keyway. Push and pull your key in and out of the lock to make sure it’s all the way in. 

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

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.

Lock bumping is a technique locksmiths use to quickly and quietly open a pin tumbler lock, typically found in most types of deadbolts. It involves inserting a specially crafted key, or bump key, into the lock and tapping or "bumping" it with a mallet or similar tool. The force applied causes the lock's pins to jump momentarily, allowing the lock to be turned and opened. Unfortunately, thieves also use this technique to break into homes. Luckily, products like a deadbolt strap will fortify your lock.

The Sullivan, MO homeowners’ guide to locksmith services

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