BEST Lock Services in Severn & Central Maryland
BEST is known for interchangeable core locks, where the keyed core can be removed and swapped with a special control key. That makes it fast to change who has access without replacing the lock, which is why BEST hardware is common in schools, offices and large buildings. 911 Locksmith services BEST locks across Central Maryland.
- 4.9 on Google
- Licensed, bonded and insured
- Serving Maryland since 2013
- We come to your address
BEST at a glance
- Found on
- Schools, offices, campuses and multi-tenant buildings
- Known for
- Interchangeable core (SFIC) cylinders, cylindrical and mortise locks
- What we do
- Core changes, repair, rekeying, key systems
BEST Locks Installed, Repaired & Rekeyed
We repair BEST cylindrical and mortise locks, change and rekey interchangeable cores, and help manage BEST key systems as staff and tenants change.
BEST Products We Install & Service
Commercial locks
BEST cylindrical, mortise, deadbolt and pushbutton locks we install and service.
9K Series Cylindrical Lever
40H Series Mortise Lock
T Series Deadbolt
EZ Series Pushbutton Lock
Cores, padlocks, exits & closers
BEST interchangeable cores and the hardware that goes with them.
Standard Interchangeable Core
BEST Padlock
Precision 2000 Exit Device
HD8000 Series Door Closer
Product photos: BEST. Don't see your model? Call us. We work on most BEST hardware.
Our BEST Lock Services
Interchangeable Core Service
BEST cores changed and rekeyed so access can be updated quickly without replacing the lock.
Rekey after staff change →BEST Lock Repair
Worn or broken BEST cylindrical and mortise locks repaired on site.
Commercial lock repair →Mortise Lock Service
BEST mortise locks installed, adjusted and repaired on high-traffic doors.
Mortise locks →Master Key Systems
BEST key systems planned and maintained so each person has the right access.
Master key systems →Exit Devices
Exit devices with BEST cores serviced so doors latch and release properly.
Panic bars & exit devices →Common BEST Lock Problems We Fix
- Employee left with keys: swap or rekey the cores on affected doors. See rekey after staff change.
- Master key opens the wrong doors: a key system that needs to be redesigned. See master key opens wrong doors.
- Cylinder spins without unlocking: a worn core or cam. See cylinder spins.
- Panic bar won't latch: a worn or misadjusted exit device. See panic bar won’t latch.
How A BEST Service Visit Works
Call or Book Online:
Tell us the lock model if you know it and what is wrong, and we schedule a time that suits you.
On-Site Check:
The technician inspects the lock, cylinder and door to find the cause, not just the symptom.
Upfront Options:
You get a clear choice between repairing, rekeying or replacing before any work starts.
Fix & Test:
We complete the work, test every key and function, and show you how the lock should operate.
BEST is a trademark of its owner. 911 Locksmith is an independent locksmith and is not an authorized dealer of, or affiliated with or endorsed by, BEST. The logo and product photos belong to BEST and are shown only to identify the products we service.
BEST Lock Service Near You
Hours
| Sunday to Friday | 7:30 AM to 11:30 PM |
| Saturday | 6:30 AM to 11:30 PM |
Call and we'll tell you how soon a technician can get to you.
Based in Severn, we cover communities across Central Maryland, including:
FAQs About BEST Lock Service
What is an interchangeable core?
It is a keyed core that can be removed from the lock with a control key and replaced with a differently keyed core, so access can be changed in minutes without taking the lock apart.
Can you rekey BEST cores?
Yes. We rekey BEST cores or swap in new ones and keep your key system organized.
Do you need the control key to change a BEST core?
The control key makes it quick. If it has been lost, we can still remove and replace cores and set up a new control key.
Do you repair BEST locks as well as cores?
Yes. We repair BEST cylindrical and mortise lock bodies, not just the cores.
Are you a BEST authorized dealer?
No. 911 Locksmith is an independent local locksmith. We install and service BEST locks, but we are not affiliated with or endorsed by BEST or its parent company.
Other lock brands we service
What customers say about 911 Locksmith
Google reviews from homeowners, drivers and businesses across Maryland.

Need Help With BEST Locks?
For BEST interchangeable core locks and key systems in Central Maryland, call 911 Locksmith or book online.
