When you specify access control for a commercial building, one of the first decisions is where the system lives: on a server in your building, or in a provider's cloud. The readers and door controllers can look identical either way. What changes is who hosts the software, who maintains it, and how you pay for it over time.
Both models work well for commercial facilities in Colorado. Which one fits depends on your IT setup, your security requirements, and how many sites you manage.
What's the difference between cloud and on-premise access control?
On-premise access control runs the management software and credential database on a server inside your facility. Cloud-based access control runs them in the provider's data center, and you manage the system through a web browser or app.
The hardware at the door is similar in both cases. Readers, door controllers, locks, and credentials work the same way. The difference is where the brains of the system sit and where you do the day-to-day management. With an on-premise system, your IT team owns the server, keeps it running, and you administer the system from local workstations or over a VPN. With a cloud-managed system (sometimes sold as access control as a service), the door controllers connect out to the internet, the provider hosts and updates the software, and you manage doors and cardholders from anywhere.
When on-premise access control makes more sense
On-premise fits facilities that need to keep credential data in-house, already run their own IT, or manage a large door count at a single site.
A few situations push toward on-premise. Government, law enforcement, and defense-adjacent facilities often have to keep credential and cardholder data inside their own control for compliance reasons. We see this regularly with commercial access control in Colorado Springs, where defense contractors and municipal facilities carry data-handling requirements that shape the whole design. Facilities with a real IT department and a server room can absorb hosting and patching without much added cost. And at high door counts on one campus, the math on a one-time license can beat a per-door monthly subscription over the life of the system. On-premise also holds up where internet service is unreliable or where the network is deliberately isolated.
When cloud-based access control makes more sense
Cloud-based fits facilities with multiple sites, little or no on-site IT, or a need to manage doors remotely.
If you run a portfolio, cloud lets you administer every building from one login instead of maintaining a server at each one. For a property management company turning tenants over, issuing and revoking credentials from a phone is faster than dispatching someone to a workstation. Smaller facilities without a server room or IT staff avoid the hardware and the maintenance burden entirely. The provider handles software updates and security patches in the background. And the cost lands as a predictable monthly figure rather than a large upfront purchase, which is easier to budget for some operations.
How cloud and on-premise compare on cost
On-premise costs more upfront and less per month. Cloud costs less upfront and more over time as a subscription.
An on-premise system carries the cost of server hardware, door controllers, software licenses, and installation labor at the start. After that, your recurring cost is software support or assurance plus your own IT time. A cloud system still needs controllers and installation, but the management software arrives as a per-door or per-site monthly subscription that bundles hosting, updates, and support. Over a long enough horizon, the subscription total can pass what an owned system would have cost. Over a short one, cloud is cheaper to get running. Where the two lines cross depends on door count and how long you keep the system, which is part of the larger question of how much commercial access control costs in Colorado.
What about reliability and internet dependency?
Cloud-managed door controllers keep working when the internet drops. They cache credentials locally and sync back to the cloud once the connection returns.
This is the question facility managers ask first about cloud, and the answer surprises people. On a reputable platform, your doors do not stop reading badges because the WAN went down. What you lose temporarily is remote management and live monitoring, not basic door function. An on-premise system has the mirror-image dependency: it relies on the local server and network staying healthy, which falls to your IT team. Either way, the system needs a maintenance plan. Hardware fails, software needs updating, and credentials drift out of sync without attention, regardless of where the software runs.
Security and compliance considerations in Colorado
For many Colorado government, law enforcement, and healthcare facilities, the deciding factor is where credential and cardholder data is allowed to live.
Anything touching criminal justice information falls under CJIS, which sets requirements for how that data is stored and who can access it. On-premise keeps the data inside your control. Cloud requires a provider whose hosting meets the standard, so the question becomes whether the platform documents the right certifications and encryption rather than whether cloud is allowed at all. Reputable cloud providers maintain SOC 2 reporting and encrypt data in transit and at rest, but you still confirm that it maps to your specific requirement. On patching, the trade is real: a cloud provider keeps the software current automatically, while an unpatched on-premise server is one of the more common real-world security gaps we find. Across Southern Colorado, defense-adjacent and municipal facilities tend to land on on-premise or a carefully vetted cloud platform for these reasons.
Can you combine both?
Yes. Many commercial deployments are hybrid: on-premise controllers for local control and survivability, with cloud-based management for remote access.
You do not have to pick one philosophy for an entire portfolio. ESI is authorized for Genetec, Gallagher, AMAG, and Salto, and several of these platforms run either on-premise or cloud-managed, with Salto offering both a server-based platform and a cloud-hosted service. A CJIS-bound building can stay on-premise while branch offices run cloud, all managed through the same integrator. That flexibility is usually the right answer for an organization with mixed facility types across Northern and Southern Colorado.
Frequently asked questions
Is cloud-based access control secure enough for commercial use?
Yes, for most commercial facilities. Reputable cloud access control providers encrypt credential data in transit and at rest and maintain SOC 2 reporting. The harder question is compliance: facilities under CJIS or similar requirements need to confirm the provider's hosting meets that specific standard before choosing cloud. For everyone else, a maintained cloud platform is often more secure in practice than an on-premise server that nobody patches.
Do cloud access control doors still work if the internet goes down?
Yes. Cloud-managed door controllers store credentials locally and keep granting or denying access during an internet outage. They sync back to the cloud once the connection returns. What you lose during the outage is remote management and live monitoring, not the ability of the doors to function.
Is cloud or on-premise cheaper for access control?
On-premise is cheaper over a long horizon if you have the IT staff to host and maintain it. Cloud is cheaper to start and easier to budget as a monthly cost. The crossover point depends mostly on how many doors you have and how long you keep the system. For a small facility without IT staff, cloud usually wins on total cost; for a large single campus, an owned system often does.
Can ESI support both cloud and on-premise access control in Colorado?
Yes. ESI installs and maintains both deployment models across Northern and Southern Colorado and is authorized for Genetec, Gallagher, AMAG, and Salto. For a deeper look at the full decision, see our complete guide to commercial access control in Colorado.
If you're weighing cloud against on-premise for a facility in Fort Collins, Colorado Springs, or anywhere in between, it's worth talking through your IT setup and compliance requirements before you commit to either. Call ESI at (970) 999-1681 in Northern Colorado or (719) 602-7336 in Southern Colorado, or use the contact form at esicorp.com to schedule a site assessment.
Last updated: June 2026