Access control vs. keys: total cost of ownership for a 50-person office

Most offices we visit are still running on physical keys, a decade-old keypad, or a basic prox-card system from the mid-2000s. The system works — sort of — until it doesn't. An employee leaves, and now you're either rekeying every door or hoping they actually returned their card. Someone props a door open for convenience. The "master" spreadsheet of who has access hasn't been updated in two years.

If you're running a 50-person office in Dallas, Plano, Frisco, or anywhere in DFW, the question isn't whether to switch to modern access control — it's whether the math actually works. Here's the honest TCO (total cost of ownership) breakdown.

What physical keys actually cost you

Keys feel free. They're not.

• Rekeying when an employee leaves. Rekeying a typical 10-door office in North Dallas runs $400–$800 per event. For a 50-person office, this happens 3–6 times a year. That's $1,500–$5,000 annually.
• Lost keys and emergency calls. $150–$300 per incident, a few times a year. Call it $500 annually.
• Lockouts and weekend calls. $200–$400 per incident.
• Insurance and lease implications. Commercial insurance carriers increasingly ask about access controls. Some landlords now require them.
• Audit risk. If something happens after hours, you cannot prove who was or wasn't in the building.

Realistic annual cost of running on keys for a 50-person office: $2,500 – $6,500 per year, plus a lot of intangible risk.

What modern cloud access control costs

Most of our commercial clients are on cloud-managed platforms like Brivo or Openpath (Avigilon Alta). Here's how the numbers break down for a 50-person, 10-door office:

Upfront installation

Fully installed cloud access control in DFW typically runs $1,500–$3,500 per door. That includes the reader, electric strike or mag lock, REX, door contact, power, cabling, first-year cloud license, and commissioning. For 10 doors: $18,000–$30,000 installed. Cheaper doors (interior openings with simple strikes) bring the average down; glass storefront openings and exterior mag-locks push it up.

Ongoing subscription

Cloud platforms charge per reader or per door. Realistic ranges:

• Brivo: ~$25–$35/door/month
• Openpath / Avigilon Alta: ~$20–$30/door/month
• Kantech on-prem: no monthly, but software upgrades and support contracts run $1,500–$3,000/year

For 10 doors on cloud: $2,400–$4,200 per year.

Maintenance and support

After year one, expect occasional service calls for failed strikes, replaced readers, or credential migrations. Budget $500–$2,000 per year for a 10-door office depending on age of hardware and wear patterns.

5-year TCO comparison

Cost category	Keys	Cloud access control
Upfront install	$0	$20,000 – $30,000
Rekeying (5 yrs)	$12,500 – $32,500	$0
Cloud subscription (5 yrs)	$0	$12,000 – $21,000
Maintenance (5 yrs)	$2,500	$5,000 – $10,000
5-year total	$15,000 – $35,000	$37,000 – $61,000

On paper, keys are cheaper. In practice, the comparison misses what matters most.

What the TCO table doesn't capture

Offboarding time. Disabling a credential takes 10 seconds. Rekeying a building takes a half-day and a locksmith. Across 5 years and a dozen employee departures, that's hundreds of hours of operations time.

Audit trail. When something goes missing, breaks, or triggers an insurance claim, a modern system tells you exactly who was in the building at 2:47am on a Tuesday. Keys tell you nothing.

Convenience → adoption. Mobile credentials stop doors being propped open. Remote unlock means no one drives in on a Saturday to let a vendor in.

Insurance and compliance. Many carriers now discount premiums for modern access control. Some leases and industry regulations are starting to require it outright.

Integrations. Modern platforms tie into HR (auto-deprovision when someone's terminated in Workday), camera systems (bookmark video on every unlock event), and visitor management (credential issuance on sign-in).

When does switching make sense?

Honestly, almost always, once you cross roughly 20 employees and 5+ doors. Below that, keys can still make sense for a small co-working suite or a single-door retail shop. Above that, the math and the operational reality both favor modern access control.

If you're evaluating for your DFW office, the single best thing to do is get an on-site walk and a fixed-price proposal. We'll measure every opening, recommend the right platform for how your team actually works, and deliver a scope with line-item pricing — no guessing.