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TRUSTED BY ADELPHI, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon257
    Verified locksmith services reviews

Top-Rated Locksmiths in Adelphi - Updated Nov 2026

Avatar for Capitol M. Locksmith
Capitol M. Locksmith
5.0(
60
)
LocksmithLocksmith - AutoLocksmith - For Business

Serving Adelphi, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"I requested that Capital Locksmith rekey the lock on my entry door. Prior to agreeing to perform the rekeying service the locksmith requested that I text him a picture of my existing key so he could determine if rekeying the lock was possible. The locksmith determined that rekeying my lock could be done. I was able to quickly make an appointment for the service. The locksmith arrived on time and quickly rekeyed the lock. I had requested 5 keys and he fulfilled my request. The cost for the service was very reasonable. I am very satisfied with the services of Capital Locksmith"
Response time1 day
Response rate97%
1 neighbors recently requested a quote
Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

Serving Adelphi, MD and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"Every one was on time when it came to installing our security and automation system. The installation advisor kindly asked we leave a review and we are happy to. Using the Safe Streets Group is a good decision. Many thanks to the advisor that helped us."
Additional Photos
Additional Photos
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Additional Photos
Additional Photos

+1

5 neighbors recently requested a quote
Recommended by94%of homeowners
Eagle Services, LLC
4.1(
141
)
LocksmithLocksmith - Auto

Serving Adelphi, MD and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I was told arrival time would be 30-40 minutes. It was much longer (over 1 1/2 hours). But he did a fine job when got there. The real problem was the home advisor system. I had multiple companies contacting me and after I contracted with one, another called and lied, saying the locksmith in route did not work for company and saying he was coming instead. What a fiasco. I was at work and had just had a home break in. It was atrocious. I will not use home advisor again."
Response time2 hrs
Recommended by94%of homeowners
Avatar for ADT
ADT
4.5(
886
)
Security Safe - Install

Serving Adelphi, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Our dealings with Protect Your Home/ADT were delightful. We received a call back very fast after requesting a quote through Angie's List. We were able to complete everything on the phone; there was no paperwork or downtime. I had to call Customer Service with a question about the keypad, and they ended up telling me other helpful details on top of my original question."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

36 neighbors recently requested a quote
Recommended by89%of homeowners
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Locksmiths FAQs, answered by experts

Most jobs take 30 minutes to 2 hours, but high-security systems or multiple lock installations may require additional time.

Changing door locks is a task that most homeowners can accomplish on their own. Standard door knobs are quite straightforward, and even more advanced locks, like electronic or smart locks, generally come with instructions. That said, the process can be time-consuming, especially if you plan to replace multiple locks around the house. It’s also a task that you want to complete correctly, considering that it affects the security of your house. That’s why hiring a pro is often best when changing your door locks.

It is best to use a dry lubricant, such as a Teflon-based option, for door locks. Unlike popular oil-based lubricants, dry lubricants leave a non-stick, water-repellent coating that does not attract dust, dirt, and other debris. Using an oil-based lubricant can cause these particles to build up inside the lock, making it difficult to operate or even damaging the internal mechanism. You can find dry lubricants, some of which are made specifically for locks, at most hardware stores.

Lubricating a door lock is an important part of door lock maintenance. It involves taking the lubricant of your choice (it’s best to use whatever the lock’s manufacturer suggests) and spraying it directly into the keyway. Push and pull your key in and out of the lock to make sure it’s all the way in. 

Yes, keyless locks can deter burglars, mostly because they boost security and offer advanced features. Most models allow for unique codes or temporary access, making it harder for intruders to break in. Many of these smart locks even alert you if someone tries to tamper with them. However, you need to remember that while they provide an added layer of protection, no lock is completely foolproof. Pairing these locks with good security habits—like proper lighting and surveillance cameras—creates a strong defense to help stop intruders in their tracks.

The Adelphi, MD homeowners’ guide to locksmith services

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