AAA Five Diamond Preferred Provider
Lost your car key? We cut & program it today.
Family-owned master locksmith serving North County since 1997. Car keys, fobs and remotes — in our San Marcos shop or mobile to your driveway.
What we do
Automotive specialists. Complete locksmiths.
From a dead fob to a full lockout, we handle it with dealer-level equipment — usually for far less than the dealership, and often the same day.
Car Key Replacement
Lost or stolen keys replaced — no original needed.
Transponder & Smart Keys
Chip keys and push-to-start smart keys cut and programmed.
Fob & Remote Programming
Key fobs and remotes paired to your vehicle on the spot.
High-Security Laser-Cut
Precision sidewinder and laser-cut keys for modern cars.
Remote Head Shell Repair
Broken key? We rebuild it and reuse your electronics.
Ignition & Extraction
Ignition repair, replacement, restoration and broken key extraction.
Vehicle Lockouts
Locked out? Fast, damage-free entry across North County.
Residential
Rekeys, lock installs and upgrades to keep your home secure.
Commercial
Locks, keying systems and service for local businesses.
Two ways to get service
Stop by the shop, or we'll come to you.
In-shop showroom
Visit us on Commerce St near Old Restaurant Row. Weekdays 9:30–5, weekends by appointment.
Mobile service
Seven days a week, from Oceanside to Solana Beach and Escondido.
- AAA Emergency Roadside Service contracted provider
- AAA member discount applied on site
- Military, student & senior discounts
Vehicles we key
Our story
A neighborhood locksmith, the old-fashioned way.
Day & Night Security Lock is a family-owned master locksmith that has served North County since 1997. Owner Chris and Michelle at the front counter have earned a reputation for honest prices, patient explanations and work done right the first time.
4.8
from 113 Google reviews
Customers keep coming back for Chris's expertise and Michelle's friendly service — North County's go-to for car keys done right.
Read the reviews on GoogleVisit or call
Locked out or need a spare? Call us now.
- Monday – Friday
- 9:30 AM – 5:00 PM
- Saturday
- By appointment
- Sunday
- By appointment
- Mobile service
- 7 days a week