After buying a home in Washington, DC, review who may still have working keys. If the locks are suitable for the doors and in good condition, rekeying is often a practical way to stop previous keys from working. Replacement makes sense when hardware is damaged, unsuitable, or missing features you need.
There is a third option: repair. A stiff key or a sticking deadbolt may be caused by door alignment, a loose hinge, or a strike-plate problem. Replacing the lock alone may leave that problem unresolved.
Rekeying, Repair, and Replacement Compared
| Option | What changes | When to consider it |
|---|---|---|
| Rekey | The key combination of a compatible cylinder | Existing hardware works well, but you need to change who has access |
| Repair or adjustment | The faulty component, mounting, or door alignment | A usable lock is difficult to operate because of a correctable problem |
| Replace | The cylinder, lockset, or other hardware as needed | Components are damaged, incompatible, unsuitable, or do not provide the features you need |
Sometimes only the cylinder needs replacement. A complete new lockset is not always necessary.
What Rekeying Does
In a conventional pin-tumbler cylinder, a locksmith changes the internal pin arrangement so that a different key operates the lock. The usable lock body, handle, and deadbolt can remain in place. Other cylinder designs may use different rekeying procedures.
Rekeying changes access; it does not repair a weak frame, upgrade the lock’s physical resistance, or remove access through an unchanged keypad code or app account.
Several locks may be keyed alike if their keyways and cylinder designs are compatible. The same brand name alone does not guarantee compatibility. A locksmith should check the actual cylinders before promising that one key will operate every door.
When Rekeying Makes Sense
Consider rekeying when:
- You bought a house or condo and do not know who holds copies of the existing keys.
- A key was lost or stolen and someone could use it to gain entry.
- An authorized change in occupancy or staffing means someone should no longer have access.
- You want compatible locks to operate with one key.
- Your landlord or building manager has approved a change to a rental unit’s keying.
For a rental, shared home, or ownership dispute, establish who is legally entitled to enter before changing access. A lock change should not be used to exclude a lawful occupant.
When Repair or Replacement Is Better
Have the whole opening assessed when the lock sticks, the door must be lifted to latch, or the bolt rubs against its strike. Schlage’s door-alignment guidance illustrates why these symptoms are not always a defective lock.
Replacement may be appropriate when:
- A lock or cylinder is damaged beyond practical repair.
- Hardware is unsuitable for the door, exposure, or frequency of use.
- Compatible cylinders are unavailable for a planned key system.
- You want a suitable high-security cylinder, stronger deadbolt assembly, or electronic access features.
- A break-in damaged the door, frame, strike, or lock and the opening needs coordinated repairs.
Our residential locksmith service in Washington, DC can help assess the existing hardware and the scope of work.
What Determines the Cost?
Rekeying often costs less than replacing serviceable hardware, but compare the complete job price. The estimate should identify the service call, number and type of cylinders, key copies, any master-keying work, labor, and replacement parts.
A door with a separate knob lock and deadbolt may have two cylinders. Tell the locksmith how many keyed cylinders you have, not just how many doors. High-security and specialized cylinders can require different parts or procedures.
Master Key Systems and Shared Entrances
A planned master key system can allow a building manager’s key to open selected doors while occupants’ keys operate only the doors assigned to them. The design should specify access to individual units, common entrances, utility rooms, and other shared areas.
Rekeying one apartment does not necessarily remove access to the building. If the former resident’s old key also operates the common entrance, it may continue to work there. Assess that shared-door access separately. Individually managed electronic credentials are another option for common entrances.
Keep records of issued keys, limit master-key holders, and plan what happens when a key is lost. Restricted key systems can make unauthorized copying harder, but they cannot disable a missing mechanical key. A lost master key may require rekeying every opening it can operate.
Smart Locks Need Their Own Access Reset
A new owner should review all the ways an electronic lock can be opened:
- Physical keys: Rekey or replace a compatible backup cylinder where appropriate.
- Codes: Remove previous users and create new codes according to the manufacturer’s instructions.
- App access: Transfer ownership, remove old accounts and integrations, and complete the manufacturer’s recommended reset process.
- Power and backup entry: Check the model’s battery, charging, or other power requirements and understand how to regain access if power is unavailable.
Not every electronic lock has a key cylinder, and not every cylinder is serviceable in the same way. Check the exact model.
For a condo or apartment entrance, confirm building approval and the hardware’s suitability for the door assembly. Changes must preserve required fire protection, accessibility, and emergency exit functions.
Browse our door lock products for options to discuss with the installer.
DC Renters and Landlords
Before an ordinary tenant-initiated lock change, review your lease and coordinate with the housing provider about permission, keys, and building-system compatibility. Lease terms are not the whole story: DC law also provides specific protections.
- A landlord cannot use a lock change to carry out a self-help eviction. The DC Office of the Tenant Advocate explains that eviction requires the judicial process and execution through the US Marshals Service.
- Qualifying survivors of intrafamily offenses have specific lock-change rights. Under D.C. Code § 42-3505.08, a written request triggers a five-business-day deadline. If the perpetrator is a co-tenant, the statute requires a qualifying protective order. The housing provider initially pays; reimbursement is generally due within 45 days after cost documentation is provided, subject to the statute’s fee conditions.
For a tenancy dispute or an urgent safety situation, contact the Office of the Tenant Advocate or a qualified legal adviser about your circumstances.
Choosing a Security Upgrade
Ask about the exact cylinder and complete lock assembly, not just a brand name. UL 437 listings address specified key-lock performance; ANSI/BHMA A156.30 addresses high-security cylinders. Residential deadbolts can also carry BHMA Secure Home ratings for security, durability, and finish. These ratings describe different aspects of performance and should not be treated as interchangeable.
A suitable lock still depends on a sound door and frame, correct installation, and an appropriate strike. Reinforcement must suit the opening and its manufacturer requirements.
How RBD Security Approaches a Move-In Rekey
For a new home, RBD checks every keyed cylinder, including the garage entry, basement and any side or rear doors. We tell you which locks can be rekeyed to one key, which need repair or adjustment, and which are worth replacing, then quote the full job before starting. Rekeying is done by appointment, and we also rekey the backup key cylinders on Schlage, Kwikset and Yale smart locks. For condos and small apartment buildings, we review which shared doors the old keys can open.
We work with hardware from Schlage, Kwikset, Yale, Sargent, Kaba, Medeco and Mul-T-Lock, among others.
Frequently Asked Questions
Is rekeying always cheaper than replacing locks?
It is often less expensive when existing hardware is serviceable. Compare complete estimates, including travel, labor, key copies, and any specialized cylinders.
Can all my locks use one key?
Often, yes, if the cylinders are compatible. Matching brands are not sufficient by themselves, and some doors may need a different cylinder or lockset.
Can a smart lock be rekeyed?
Some models have a rekeyable backup cylinder; others are key-free or use different designs. Reset codes and app access separately from any mechanical key work.
Does rekeying a unit remove the old tenant’s access to shared doors?
Not automatically. Review every door the old key can open, including common entrances, and address each affected opening.
Request a Rekeying or Lock-Replacement Estimate
Call RBD Security at (202) 709-9466. Have the property location, number of keyed cylinders, and photos of the existing locks ready so the scope can be assessed.