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TRUSTED BY THORNTON, CO HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon228
    Verified locksmith services reviews

Top-Rated Locksmiths in Thornton - Updated Nov 2026

Avatar for American Locksmith LLC
American Locksmith LLC
5.0(
413
)
LocksmithLocksmith - AutoLocksmith - For Business

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 rate98%
151 neighbors recently requested a quote
Avatar for Ali Baba Locksmith, LLC
Ali Baba Locksmith, LLC
4.8(
25
)
Locksmith - Auto

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
Avatar for Best Locksmith Colorado
Best Locksmith Colorado
5.0(
9
)
LocksmithLocksmith - Auto

Serving Thornton, CO and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"The guy came right away (30 min), was very professional and transparent from the beginning, did an excellent job and charged a very fair pricing. He will definitely be my go-to locksmith for anything else in the future!! Very impressive 🏆"
30 neighbors recently requested a quote
Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

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!"
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4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Boulder Mobile Locksmiths
Boulder Mobile Locksmiths
4.6(
6
)
Locksmith - For Business

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
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Locksmiths FAQs, answered by experts

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.

If part of the key is protruding out of the lock, you can use a pair of needle-nosed pliers or tweezers to gently turn the key in the lock to open the door. If the key is fully inserted into the lock, you may also be able to use a key extractor to help turn the key into the unlocked position. 

But if the key breaks off halfway into the lock or you simply can’t reach it to help engage the unlocking mechanisms, you should probably call a professional.

Over time, latch components may wear out or get grimy, leading to this problem. First, check for dirt, dust, or debris in the latch mechanism to ensure smooth operation. Use an aerosol duster and lubricant to clean and loosen. You may also need to tighten the screws in the component, adjust the strike plate, or replace the lock. If none of these steps resolve the problem, consult a professional locksmith.

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.

One of the best tools for removing a stripped bolt is a handy pair of locking pliers. Locking pliers can usually grip onto screws with a broken, rounded, or stripped head and lock in place so that you can loosen even the most stubborn bolt that would otherwise remain hopelessly jammed.

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.