Lock Replacement & Installation in Oakland

Replacement is for locks that are broken, worn out, or the wrong grade for the door: a deadbolt on a Dimond bungalow whose bolt no longer throws, a snapped tailpiece on a Downtown condo, a Craftsman mortise lock in Rockridge whose lever pack has finally quit after a century, a side gate in Montclair that needs a real lock instead of a hasp. Estuary Lock & Key carries residential deadbolts, knobs, levers, handlesets and a small stock of mortise replacements on the van.

Before pulling anything the tech measures door thickness, backset and bore, because 1910s doors do not match modern prep and a 1960s builder bore may be oversized. Where the existing prep fits, the swap takes twenty to thirty minutes a door. Where it does not, the door is drilled or filled and you see the fit before the lock is mounted. Mortise locks are replaced with a modern mortise case behind the original trim where the trim is worth keeping. Keys are cut on site and matched to your other doors if you ask.

Installed prices run $99 to $275 per lock, hardware included. A Grade 3 residential deadbolt is the $99 end. Grade 2 deadbolts, lever sets, full handlesets with a matching deadbolt, and mortise replacements reach $275. The $89 service call is applied toward the total. Evening arrivals add $35 and overnight arrivals add $70, both named on the call. High-security cylinders and unusual door prep are quoted before, never after.

On the call, describe the door and send a photo of the lock face if you can. The figure is locked there. A text gives the tech's name, van and window. On site: measurement, removal of the old hardware, fitting, strike adjustment, key cutting, and a test of the closed door with the weatherstrip compressed. Payment by card or tap, receipt itemized per lock.

Kenji O.Rockridge, CA · Mar 2026

“Our brown-shingle off College has a 1915 mortise lock that finally gave up. Quoted $240 for a period-style replacement that fit the original door cut. The only knock is that the technician landed at the far end of the window they texted, so I lost an extra half hour on a Saturday. The work itself is clean, though, and the old brass plate is still on the door.”