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

Yes, you should change the locks as soon as you can after completing the purchase of a house. This is a matter of privacy and security, as you have no idea how many copies of the keys the previous owner made. You can change the locks yourself or hire a pro to replace or rekey the lock, which costs $50 to $100.

While lock crunching as a whole is not terribly common, it is one of the most frequently used means of forced entry into a home. Recent data suggests that forced entry through lock crunching or snapping occurs in more than 25% of burglaries.

Whether or not keyless door locks are safe and trustworthy depends on the visibility of the programming code—and a trespasser’s determination. Even if you carefully guard entry and programming codes, those trying to break in may be able to crack open the lock’s faceplate with a screwdriver and change the codes. The same goes for manual models.

Some find smart locks the safest option because it’s harder to manipulate codes without access to your phone. But it’s possible to get hacked even then. Consider installing an extended security system, like door and window alarms or surveillance cameras, to enhance security. 

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.

Smart deadbolts are a worthwhile investment for homeowners seeking more convenience, flexibility, and advanced features than a traditional deadbolt can provide. While a strong conventional deadbolt offers sufficient security for most, smart deadbolts provide significant upgrades.

Key benefits include keyless entry via smartphone, keypads, or biometric sensors, and the ability to lock or unlock your door remotely. You can also manage access for guests by creating temporary codes, eliminating the need for physical keys and the risk of them being lost or duplicated. Many models integrate with smart home systems and offer features like automatic locking, entry-exit monitoring, and tamper alerts with encryption for enhanced security.

However, there are downsides to consider. Smart deadbolts are more expensive than their traditional counterparts and rely on batteries and wireless networks to function. This dependency introduces potential vulnerabilities, such as hacking by skilled intruders and privacy concerns. Installation can also be more complex. Despite these drawbacks, the added layer of convenience and protection makes them a compelling option for many.

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