Get matched with top locksmiths in Thornton, CO

Thornton homeowners rate locksmiths in our network

4.8

(228 reviews)

Top-rated locksmiths.

Need a pro for your locksmith service project in Thornton, CO?

Select your specific project to find the pro for you.

Verified Reviews for Locksmith Service pros in Thornton, CO

*The Angi rating for Locksmith Service companies in Thornton, CO 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 Thornton, CO 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 March 19, 2026

Find Locksmiths in Thornton

Avatar for American Locksmith LLC
American Locksmith LLC
5.0(
412
)

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"Absolutely fantastic Emergency Locksmith Service from American Locksmith LLC! I accidentally left my keys in the ignition, and the locksmith arrived faster than I could finish my coffee. Quick, efficient, and friendly service. I hope I don't lock myself out again, but if I do, American Locksmith LLC is my go-to."
Response time5 hrs
Response rate94%
154 neighbors recently requested a quote
Request Quote
Avatar for CitiKey Locksmith, LLC
CitiKey Locksmith, LLC
5.0(
33
)

Serving Thornton, CO and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Handsome personalble man completed the job and all other locks I requested. Enjoyed his presence and his work."
Kwikset Smart key
Response time5 hrs
Response rate88%
Recommended by100%of homeowners
Request Quote
Avatar for Lock Chief Locksmith LLC
Lock Chief Locksmith LLC
5.0(
15
)

Serving Thornton, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Lock Chief Locksmith does excellent work. They are professional and communicate at a high level."
Response time4 hrs
Response rate97%
Recommended by64%of homeowners
Request Quote
Avatar for Arvada Lock and Key Company
Arvada Lock and Key Company
4.9(
17
)

Serving Thornton, CO and surrounding areas

Approved

In business since 1976

Free estimates

Small jobs welcome

"Rory knows his business! The latch bolt had seized up in the strike plate because the antique wooden door had swollen with all the rain and was wedged within the door frame so tightly that it was impossible to open. Rory knew right where to place the tip of a screwdriver to pop that old door right open! It was like magic! Heâ s my hero! If you need a real professional locksmith, give Arvada Lock and Key a call and ask for Rory!"
Our Work
Our Work
Our Work
Our Work
Response time1 day
Response rate90%
Recommended by100%of homeowners
Request Quote
Avatar for Ali Baba Locksmith, LLC
Ali Baba Locksmith, LLC
4.8(
25
)

Serving Thornton, CO and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"First of all I want to thank Ali for saving my day. Besides he s a pro at what he does, he s also fast, and creative. Very reasonable prices. I highly recommend Ali Baba Locksmith for everyone."
Response time3 hrs
Response rate86%
Recommended by100%of homeowners
Request Quote
Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)

Serving Thornton, CO 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!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

6 neighbors recently requested a quote
Recommended by94%of homeowners
Request Quote
Avatar for Boulder Mobile Locksmiths
Boulder Mobile Locksmiths
4.6(
6
)

Serving Thornton, CO and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

Boulder Mobile Locksmiths are a full service Residential, Commercial & Automotive Locksmith Serving Boulder County. Should you find yourself locked out of your car, home, business, mailbox etc. call us right away and we’ll get you back in fast. We have some of the fastest response times in Boulder.\nWe also provide scheduled locksmith services to your location, whether you need your locks rekeyed, need new locks installed, lost the key to your car or forgot the combination to your safe we will come to you and get it done fast. We service all commercial applications as well from panic-bars installed and maintained to door closers and other commercial hardware. We also install and maintain Access Control systems as well as camera's & alarm systems.

Response time2 hrs
Response rate90%
1 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 454
Locksmiths questions, answered by experts

Smart locks offer a similar level of safety to traditional or conventional locks because they often use comparable locking mechanisms, such as deadbolts. The primary difference is the access method: smart locks use a login or code instead of a physical key, which adds convenience. While not inherently safer, some smart locks have added security features that can deter intruders, like shutting down after too many incorrect code attempts or being harder to pick. For the best security, it's recommended to combine any lock with other home safety features like motion-activated lighting, security cameras, and window and door sensors.

When the temps drop, sometimes you need to thaw a lock to regain access. Options include warming the key with warm water, applying a de-icing spray, or using a hair dryer on low heat. Avoid using boiling water to prevent damage. To prevent future freezing, consider installing a cover or shield over the lock to keep water and ice out. Remember to be patient and gentle during thawing to avoid damaging the lock or key. If all else fails, consult a professional locksmith.

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. 

If your key breaks in a lock, first remain calm and avoid forcing the broken piece further in. You may be able to remove it yourself if a portion of the key is still protruding from the lock. To aid removal, lubricate the keyhole with a graphite-based spray. Then, try using tools like pliers, tweezers, a bobby pin, or even a jigsaw blade to gently grasp and pull the broken piece out. If these methods don't work, you can't reach the key, or you're concerned about damaging the lock, it's best to call a professional locksmith for assistance.

Standard residential deadbolt locks come with a steel bolt that locks your door into place using a key (or keypad) on one side and a thumb turn on the other. When you lock it, the bolt slides into a strike plate on your door jamb to secure your door shut.

The Thornton, CO 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