Duboff Locksmith Services services bank vault doors, time locks and vault locks for banks, credit unions and financial properties across the Phoenix Valley. Scott Duboff has completed Bank Vault Electronic Conversion training, Time Locks training, and Lockmasters Security Institute certification as a GSA Authorized Safe & Vault Technician. To request a quote, use the form on this page or call (813) 712-0832.

What Scott services
| Equipment | Typical work |
|---|---|
| Vault doors | Service of the locks and locking mechanism on bank vault doors |
| Time locks | Service of the timers that keep a vault closed until a set time |
| Mechanical combination locks | Service, or conversion to electronic |
| Electronic vault and safe locks | Installation and programming |
| Safe deposit boxes | Drilling and service |
| Safes inside the branch | Opening, service and electronic locks. See safe service. |
How time locks work
A vault door usually has combination locks plus a time lock. The combination proves who's allowed in. The time lock decides when. Once the time lock is set, the door stays locked until the movement runs down to the set opening time, even for someone with the combination. That protects the vault overnight, on weekends and on holidays.
Time locks are precise mechanisms, and a failed time lock can keep a vault closed when the branch needs it open. Regular service keeps them reliable.
Converting vault locks from mechanical to electronic
Many older vault doors still use mechanical dial combination locks. Converting to electronic locks gives a branch:
- Individual user codes instead of one shared combination
- Audit trails that record each opening
- Time delays that make a robbery harder
- Faster openings than dialing a combination
Scott completed Bank Vault Electronic Conversion training through the ALOA Security Professionals Association and SAVTA in April 2025, and holds dormakaba factory certifications on electronic safe locks. See Scott's certifications.
Signs a vault door or time lock needs service
Call before a small problem keeps the vault closed on a business day. Common warning signs:
- The combination dial feels rough, gritty or takes several tries to open.
- The handle is hard to throw, or the bolts drag as they move.
- The door has started to sag or binds as it swings.
- A time lock doesn't hold the time it was set for, or the movements are past their service interval.
- Electronic locks show low-battery warnings or reject valid codes.
- Staff have started working around the vault's security, like leaving it on day lock longer than they should, because the locks are a hassle.
What to have ready
- The vault door manufacturer and model, from the plate on the door if there is one
- The lock and time lock models, if visible
- What's happening, and since when
- Branch hours and any security procedures Scott needs to follow on site
Requesting vault service
- Send the details. Use the quote form on this page: the branch address, the vault door make if known, and what you need.
- Scott follows up to ask about the equipment and set a time to see it.
- You get a quote before any work starts.
- Scott schedules the work around branch hours when he can.
Scott is insured up to $3,000,000 through State Farm and bonded through SAVTA. He accepts card, cash, Zelle and check, and works under purchase orders or net terms with a written agreement. He provides a W-9 and a certificate of insurance on request.
Why financial properties call Scott
- Member of SAVTA, the Safe & Vault Technicians Association, and bonded through SAVTA
- Trained in time locks and bank vault electronic conversions
- Lockmasters-certified GSA Authorized Safe & Vault Technician and Inspector
- Factory certified on dormakaba electronic safe locks
- Mobile from Tucson to Flagstaff, based in San Tan Valley
- 90-day labor warranty
