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Top-Rated Locksmiths in Cottage Hills - Updated Nov 2026

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

Serving Cottage Hills, IL and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"AWESOME buying experience and setup experience! I just bought a house and wanted to make sure I was protected. They even helped me find a fantastic locksmith who gave a me great deal. Can't recommend highly enough. He gave excellent advice and saved me money in the long run with their current promo. Look no further for the best security company!"
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+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
889
)
Security Safe - Install

Serving Cottage Hills, IL 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 by88%of homeowners
C Hatcher Construction
4.8(
11
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Cottage Hills, IL and surrounding areas

Approved

Customers say: True professional

Home repairs, electric, plumbing, remodeling, flooring, masonry, 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!

Response time1 day
Response rate100%
Recommended by70%of homeowners
Sean Redus
5.0(
1
)
Security Safe - Install

Serving Cottage Hills, IL 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.

AA Key & Lock Service
4.8(
150
)
LocksmithLocksmith - AutoLocksmith - For Business

Serving Cottage Hills, IL and surrounding areas

In business since 1979

Credit card accepted

"When I called around for quotes and to make the appointment, AA Key & Lock had clear upfront pricing and answered all of my questions. They had several options to find a convenient time for the service. They were able to rekey front and back door and install deadbolt on basement door for a newly purchased home in about an hour."
Recommended by98%of homeowners
Avatar for Complete Locksmith Solutions LLC
Complete Locksmith Solutions LLC
5.0(
4
)
LocksmithLocksmith - AutoLocksmith - For Business

Serving Cottage Hills, IL and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"The locksmith was extremely kind and a respectable young man. He communicated thoroughly, provided me with answers to all my questions, and helped me in my home in a quick timely manner! I have already saved the phone number as my go to locksmith in STL!"
Locksmiths Project
Locksmiths Project
Locksmiths Project
Locksmiths Project
Recommended by100%of homeowners
Avatar for Mr. Handyman Metro East
Mr. Handyman Metro East
4.6(
196
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Cottage Hills, IL and surrounding areas

In business since 2000

Warranties offered

Small jobs welcome

"Robb was on time & very courteous & professional. He performed the work & made sure I was satisfied with the finished product. He is very efficient and would recommend him for further jobs."
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+5

Response time1 day
Response rate100%
1 neighbors recently requested a quote
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Locksmiths FAQs, answered by experts

Any type of dead bolt lock provides the highest level of safety for a single device. However, it’s also important to determine a lock's grade. Locks can come in either Grade 1, Grade 2, or Grade 3, which indicates how durable it is and if it’s constructed solidly. Safety experts recommend choosing locks based on Grade 1, which offers the highest level of durability.

Door locks should be changed roughly every seven years. The average lifespan of a door lock is seven to 10 years, so it’s best to err on the side of caution and change them early, especially if they are showing signs of wear and tear. Examples of deterioration include visible rust and difficulty opening or closing the door. Some locks can work safely beyond 10 years, but it depends on how often they are used and whether they are exposed to damaging environmental conditions like precipitation or extreme temperatures.

First thing first: Make sure you’re using the right key. If it’s the correct key for your lock, there are a few reasons why it may not be working, like the key is worn out or the lock is jammed. Try lubricating the lock and pushing the door closed to ensure the mechanisms work correctly. If you’re still locked out, call in for help.

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.

Rekeying should be done when employees leave or keys are lost, while replacement may be necessary for outdated or damaged locks.

The Cottage Hills, IL homeowners’ guide to locksmith services

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