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TRUSTED BY MONROVIA, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon108
    Verified locksmith services reviews

Top-Rated Locksmiths in Monrovia - Updated Nov 2026

Avatar for Colonial Lock Service
Colonial Lock Service
4.6(
10
)
LocksmithLocksmith - AutoLocksmith - For Business

Serving Monrovia, MD and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"I contacted Colonial on 10/10/13 and the next morning Steve called and came right away in the heavy downpours.  Steve provided Superior service and identified our needs immediately to secure our front door especially with having two small kids. 
Steve is great example of professional and courtesy service and represents Colonial Locksmith very well.  Colonial Locksmith should be very proud having someone like Steve represent their company in the community. 
I would highly recommend anyone in the area that needs a locksmith that will do the job fast and right the first time with a backed guarantee, you can't go wrong. 
Many thanks
Al Padilla
"
Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

Serving Monrovia, MD 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
Additional Photos
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Additional Photos
Additional Photos

+1

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

Serving Monrovia, MD 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
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Locksmiths FAQs, answered by experts

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.

The best type of deadbolt depends on your specific needs. If accessibility is your primary concern, a single-cylinder deadbolt is the easiest to operate. Mortise locks are likely the most secure type of deadbolt you can install, but single-cylinders combined with secondary locking mechanisms like vertical locks are also a great option. Smart locks will give you the most flexibility to open and close your locks whenever and wherever you need to. 

Rekeying should be done when employees leave or keys are lost, while replacement may be necessary for outdated or damaged locks.

There is a reason many commercial garages and storage facilities have roller garage doors. They stand out as one of the most secure options due to their unique design. The compact installation and absence of visible leverage points on the sturdy aluminum curtain make them a formidable obstacle for potential intruders. 

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.

The Monrovia, MD homeowners’ guide to locksmith services

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