ASSA Lock Services in Severn & Central Maryland
ASSA High Security Locks makes cylinders and deadbolts built for strong resistance to picking and unauthorized key copying. ASSA systems are common in commercial buildings and are also used on homes that need serious key control. 911 Locksmith installs and services ASSA locks across Central Maryland.
- 4.9 on Google
- Licensed, bonded and insured
- Serving Maryland since 2013
- We come to your address
ASSA at a glance
- Found on
- Businesses, institutions and high-security homes
- Known for
- High-security cylinders and key control systems
- What we do
- Installation, repair, rekeying, key systems
ASSA Locks Installed, Repaired & Rekeyed
We fit ASSA cylinders and deadbolts, retrofit them into existing hardware, and repair and rekey ASSA systems for businesses and homeowners.
ASSA Products We Install & Service
High-security cylinders
ASSA cylinders we fit to doors and key to a restricted system.
Maximum+ Rim & Mortise Cylinder
Twin Maximum Key-in-Knob/Lever
Maximum+ Restricted SFIC Core
ASSA CLIQ Rim & Mortise Cylinder
Padlocks & cam locks
ASSA padlocks, hockey-puck locks and cam locks on the same key system.
Maximum+ High Security Padlock
Twin Maximum High Security Padlock
Maximum+ Hockey Puck Lock
Maximum+ Cam Lock
Product photos: ASSA. Don't see your model? Call us. We work on most ASSA hardware.
Our ASSA Lock Services
ASSA Cylinder & Deadbolt Installation
ASSA high-security deadbolts and cylinders fitted to entry doors and commercial hardware.
Commercial high-security locks →ASSA Lock Repair
Stiff, sticking or damaged ASSA cylinders and locks diagnosed and repaired.
Commercial lock repair →ASSA Rekeying
Rekeying ASSA cylinders when keys are lost or people leave, keeping key control intact.
Rekey after staff change →Master Key Systems
ASSA-based master key systems that give each person access only where they need it.
Master key systems →Mortise & Rim Cylinders
ASSA cylinders for mortise locks, rim locks and exit devices.
Mortise locks →Residential High-Security Locks
ASSA deadbolts for homeowners who want strong pick resistance and controlled keys.
High-security locks →Common ASSA Lock Problems We Fix
- Master key opens the wrong doors: a key system that needs to be redesigned. See master key opens wrong doors.
- Former staff still have keys: rekey and reissue controlled keys. See rekey after staff change.
- Cylinder spins without unlocking: a worn or broken cam or cylinder. See cylinder spins.
- Key is stiff in the lock: wear or debris in a precision cylinder. See key hard to insert.
How An ASSA 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.
ASSA 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, ASSA. The logo and product photos belong to ASSA and are shown only to identify the products we service.
ASSA 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 ASSA Lock Service
Can ASSA keys be copied at a hardware store?
No. ASSA keys are controlled, and copies are made only for people authorized on the key record.
Can you add ASSA cylinders to existing locks?
Often, yes. Many commercial and residential locks accept an ASSA cylinder retrofit.
Do you set up ASSA master key systems?
Yes. We plan and set up master key systems so managers, staff and contractors each get the access they need.
Can you rekey ASSA locks after an employee leaves?
Yes. We rekey affected cylinders and issue new controlled keys.
Are you an ASSA authorized dealer?
No. 911 Locksmith is an independent local locksmith. We install and service ASSA locks, but we are not affiliated with or endorsed by ASSA 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 ASSA Locks?
For ASSA high-security locks and key systems in Central Maryland, call 911 Locksmith or book online.
