Lock installation, repair & replacement

A lock that sticks, wobbles, won’t turn, or no longer latches is a security problem, not just an annoyance. I’m Ben, the owner of GreenKeys Locksmith. I repair locks where repair is sound, replace them where it isn’t, and install new locks — including deadbolts — for homes and businesses.

Common work: repairing a failing lock, replacing a broken or outdated lock, installing locks on a new door, and upgrading locks after a move or tenant change. I treat every lock as if it were my own, with an honest, flat quote before work starts. No upsell.

I’m based in Newark and focus on Fremont, Newark, Union City, Palo Alto, and Menlo Park — and I also take work in the cities in between and nearby. If you’re not sure whether I come to you, call and ask. For Palo Alto and Menlo Park, please call ahead for planned install and replacement work.

You’ll deal with the owner from the first call to the finished job.

Call (510) 209-8317 — 9:30 AM–11:30 PM, 7 days. CA License LCO 5134. Fully mobile — I come to you, no walk-in shop.

Residential & commercial only — no automotive, no car keys/fobs, no key duplication.