Commercial locksmith rekeying entry cylinders on a row of apartment doors during a scheduled bulk rekey operation

Multi-Unit Rekey Strategy

How apartment complexes, office parks, and campus facilities schedule and price bulk rekeying to minimize cost per door and disruption to operations.

Quick Answer

Multi-unit rekeying costs $15 to $30 per cylinder when a single vendor mobilizes for a grouped job, compared to $30 to $55 per cylinder for individual service calls. The key to minimizing cost is grouping units into batches, standardizing cylinder hardware across the portfolio, and establishing a preferred vendor relationship with a negotiated per-cylinder rate rather than ad-hoc pricing.

How volume rekey pricing works

Commercial locksmiths price multi-unit jobs on two components: a mobilization or service-call fee and a per-cylinder rekey rate. The mobilization fee is fixed regardless of how many units are done; the per-cylinder rate decreases as volume increases. This creates a strong economic incentive to batch units rather than calling for one or two at a time.

Typical volume pricing tiers:

1–4 cylinders
Single-unit service call
$35–$55 per cylinder
5–15 cylinders
Small batch (one section or floor)
$22–$35 per cylinder
16–50 cylinders
Mid-size batch (full building or complex)
$15–$25 per cylinder
50+ cylinders
Annual contract or campus-wide
$12–$18 per cylinder

Scheduling strategy for multi-unit properties

The most efficient scheduling approach matches the locksmith's mobilization to the make-ready window: the period between a tenant move-out and the next move-in. During that window, the unit is typically unlocked and accessible, and the rekey can be completed alongside cleaning and painting without requiring separate access coordination.

For properties with rolling vacancy (units turning over continuously), the two most common approaches are:

  • Batched weekly or biweekly: Hold all move-outs for the week and schedule the locksmith for a single visit. Batch size of 5 to 10 units typically qualifies for mid-tier pricing and one mobilization fee.
  • Scheduled monthly sweep: Contract for a monthly visit where the locksmith works through all units that turned over in the prior 30 days. Most effective for properties with 50+ units and consistent monthly turnover above 5 percent.

Choosing and managing a vendor for multi-unit work

A single-vendor relationship provides pricing consistency, cylinder standardization, and a unified key log format. When evaluating vendors for a multi-unit property contract:

Vendor evaluation checklist
  • State locksmith license (verify number independently)
  • General liability insurance of at least $1 million per occurrence
  • Experience with your specific cylinder brand (ask for references from similar properties)
  • Capacity to complete a batch of 20 units within one business day if needed
  • Willingness to provide a written per-cylinder contract rate, not ad-hoc pricing
  • Agreement to provide the full bitting list as part of your records
  • Key issuance documentation format compatible with your property management system

How to reduce multi-unit rekey costs

Four strategies that meaningfully reduce the per-unit cost of a multi-property rekey program:

  • Standardize cylinder hardware across the portfolio. If every property uses the same brand and grade of cylinder, rekeyed cylinders can be transferred between units and properties rather than discarded when replaced.
  • Negotiate an annual contract. A commitment to a minimum annual cylinder volume (typically 100 to 200 for a mid-size portfolio) typically unlocks the lowest per-cylinder rate.
  • Use keyed-alike cylinders within a unit. If the entry door and deadbolt take the same key, only one cylinder needs rekeying per unit turnover. Confirm that the cylinders are on the same keyway and can be pinned alike by the vendor.
  • Upgrade to restricted keyways at high-turnover units. Counterintuitively, restricted keyways can reduce long-term rekey costs in high-turnover units by eliminating unauthorized copies that would otherwise require an additional rekey cycle.

Multi-unit rekey FAQ

What does it cost to rekey an entire apartment complex?

Volume rekey pricing typically starts at $15 to $30 per cylinder for a multi-unit job. A 50-unit complex with two cylinders per unit would cost approximately $1,500 to $3,000 for a complete rekey, compared to $3,500 to $5,500 at single-unit call-out rates.

How should I schedule rekeying across multiple vacant units?

Group vacant units by building section and schedule the locksmith to work through them in order during the make-ready window. Most experienced commercial locksmiths can rekey 15 to 25 cylinders per hour. Coordinate with your make-ready crew so the locksmith does not need to wait for other trades on each unit.

Should I use the same locksmith for all my properties?

A single vendor relationship provides pricing consistency, hardware standardization, and a unified key log format. Ensure the bitting list is part of your records rather than the vendor's proprietary data to mitigate dependency risk if the relationship ends.

How do I reduce rekey costs without compromising security?

Standardize to one cylinder brand across the portfolio, negotiate an annual contract for volume pricing, use keyed-alike cylinders within each unit to reduce count, and upgrade to restricted keyways in high-turnover units to reduce the frequency of rekey cycles caused by unauthorized copies.

Commercial Lock Changes: Full GuideThe complete resource on commercial lock change strategies for businesses and property managers. Lock Change ChecklistAudit, scope, and document a commercial lock change from start to finish. Key Control SystemsRestricted keyways and key management platforms for auditable control over every copy.