Residential Locksmith Services
Protecting your home and family with professional, reliable locksmith solutions — available 24/7 across Montgomery County, MD and Washington, DC.
Your Home Security Is Our Priority
At Key Tec LLC, we understand that your home is your sanctuary. Our residential locksmith services are designed to keep you, your family, and your belongings safe. Whether you're locked out at 2 AM, just moved into a new house, or want to upgrade to smart locks, our licensed technicians are ready to help.
We serve Derwood, MD and the surrounding area including Bethesda, Rockville, Gaithersburg, Silver Spring, and Washington, DC.
House Lockout Service
Locked out of your home? Our technicians provide non-destructive entry methods when appropriate to get you back inside without damaging your door or lock.
- Non-destructive entry methods
- Available 24/7 including holidays
- Service across Montgomery County, MD and Washington, DC
- We use non-destructive entry methods when appropriate; results depend on the lock, door and circumstances.
Lock Rekeying
Moved into a new home? Lost a key? Rekeying changes the internal pins of your existing lock so old keys no longer work — a cost-effective alternative to full lock replacement.
- Costs less than full replacement
- Same security level as new locks
- Ideal after moving or losing keys
- All major lock brands supported
Smart Lock Installation
Upgrade your home security with a keypad, fingerprint, or app-controlled smart lock. We install and program all major brands including Schlage, Kwikset, Yale, and August.
- Schlage, Kwikset, Yale, August & more
- Keypad, fingerprint & app-controlled
- Professional programming & setup
- Works with Alexa, Google Home & Apple HomeKit
Additional Residential Services
Lock Installation
New construction or upgrading old hardware — we install deadbolts, knob locks, lever locks, and high-security models.
High-Security Locks
Medeco, Mul-T-Lock, and ASSA ABLOY high-security locks that resist picking, drilling, and bumping.
Lock Repair
Broken, stiff, or misaligned locks repaired on the spot. We carry common parts to fix most issues in a single visit.
Sliding Door Locks
Secure your patio and sliding glass doors with auxiliary locks, security bars, and reinforced strike plates.
Master Key Systems
One key for all your doors — ideal for multi-unit properties, landlords, and property managers.
Security Consultation
On-site assessment to identify vulnerabilities and recommend security upgrades for your home.
Areas We Serve
Key Tec LLC provides residential locksmith services throughout Montgomery County, MD:
Ready to Secure Your Home?
Call us now or send us a message — we're available 24/7.