Master Key Systems in Oakland

A master key system lets one key open every door a manager needs while each tenant, teacher or shift lead carries a key limited to their own. Oakland runs on them: mid-century buildings around Lake Merritt, medical suites near Kaiser Oakland and Highland Hospital, maker spaces in West Oakland with shared shops and private studios, restaurant groups with several rooms on Telegraph. Estuary Lock & Key designs and pins them, on existing hardware where it allows.

The work begins with a floor plan or a walk-through and a conversation about who goes where. The tech sketches the levels: grand master, master, sub-master, change keys. A keyway is chosen that hardware stores cannot copy. Cylinders are pinned on the van, keys are stamped and logged by number, and a key schedule is handed over so the office can see which key opens which door. Room is left for doors added later.

Master key work is quoted per project because door count, keyway and restricted-key options move the price. The written quote lists cylinders per unit, keys per copy and design time once, and it does not move after approval. The $89 service call covers the on-site survey and is applied toward the job. Rekeying a single door later stays inside the system at the per-cylinder rate.

Call with the door count and the building type. A survey is scheduled and the tech's details arrive by text. After the walk-through you receive the access map and the itemized quote. Approve it, and installation is scheduled for a day the building can spare its doors. Keys are handed over logged, and the receipt itemizes every cylinder.