(805) 584-6869
OPEN 24/7

24/7 mobile locksmith · Simi Valley

A locksmith in Simi Valley,
any hour

Locked out of your car, home or office, or a key broken in the lock — 24/7 mobile service. Also lock installation, smart locks, key and fob programming.

Call (805) 584-6869

★ 4.8 · 92 reviews on Yelp · 5924 E Los Angeles Ave, Simi Valley

or email arkco368@yahoo.com

What Arkco handles

Call any time and say where you are and what's locked.

Lockouts

24/7 mobile service to homes, offices and cars.

Cars

Car locks, and key and fob programming.

Locks

Installation and replacement, including smart locks.

Keys

Duplicates, key repair and broken key extraction.

Doors, cars and keys

Day or night, to the job

Arkco Security Lock & Key works out of 5924 E Los Angeles Ave in Simi Valley and drives to the job, day or night: homes, offices and cars. Lock installation and replacement, smart locks, car locks, key duplicates and key repair, broken key extraction, key and fob programming, and lockouts.

A smart fob held up in front of the steering wheel after programming

Push-start fob

A smart fob held up in front of the steering wheel after programming.

A new car key on an Arkco Security tag, held in a gloved hand
Car key cut
A worn ignition lock cylinder pulled out of a car, held in a gloved hand
Ignition cylinder
A new remote head key laid beside the customer's worn original
Remote head key
A new flip key next to two worn ones with their shells broken open
Flip key shells
A pair of smart keys on a car dashboard at dusk
Smart keys
A smart key in a gloved hand beside a white car, the ocean and sand dunes behind
Out to the coast

The work

Photographs from Arkco's own jobs

New keys cut beside worn originals, broken shells replaced, an ignition cylinder pulled out of a car.

Out to the coast

A smart key handed over beside a white car, the ocean and sand dunes behind.

A car instrument cluster showing Remote Learn Pending while a new remote is paired
Remote learnA new remote being paired
An SUV with its hood up and driver door open on the shore of a lake at sunset, mountains behind
Hood up at the lakeAn SUV on a lake shore at sunset
A door lock with a ring of keys hanging from the cylinder
Door lockA ring of keys in the cylinder
A new flip key held up in front of the customer's SUV
Flip keyIn front of the customer's SUV

Yelp · 4.8 · 92 reviews

In their words

“Arkco Security is wonderful. My mom's key broke inside the ignition late evening and we reached out to them for help. They were so kind and walked us through the steps over the phone on how to safely be able to remove the key out of the ignition. Thank you so much Arkco!!!”
Pegah F. · Jul 31, 2026 · Yelp
“Arkco is absolutely the best. Great prices, with extremely fast and friendly service. I actually traveled from Sherman Oaks to Simi Valley to have a key fob programmed because I had such a great experience the first time I used them and their prices can't be beat. It's definitely worth the trip!”
Todd B. · Aug 20, 2024 · Yelp
“Reprogrammed my fobs and cut all my keys to match, I have used them before and was a return customer based on my previous experience.”
Chris D. · Apr 3, 2025 · Yelp
“The guys were super flexible and understanding with our schedules (our title company dropped the ball at the last second and we had to reschedule with them a couple of times), they were always polite, transparent about their prices, punctual and super professional. Would definitely recommend to any of our friends and family!”
Shannon S. · Aug 5, 2024 · Yelp

Arkco Security Lock & Key

A small, family-run locksmith based on E Los Angeles Ave in Simi Valley, on call 24/7. Rated 4.8 on Yelp across 92 reviews.

  • Where5924 E Los Angeles Ave, Ste H, Simi Valley
  • Hours24/7
  • ServiceMobile — home, office and car
  • Yelp4.8 · 92 reviews
  • PaymentCards, Zelle, Venmo

Call a locksmith

(805) 584-6869

Call (805) 584-6869, day or night, or email arkco368@yahoo.com.

5924 E Los Angeles Ave, Ste H, Simi Valley, California · Open 24/7 · Cards, Zelle, Venmo

Call (805) 584-686924/7