Access Control Upgrades in Katy: Growing a System That Started With One Door

The three stages a Katy system grows through

Nearly every system we upgrade in Katy sits at one of three stages. Knowing which one you are in tells you what the next step costs and what it can reuse.

Stage 1: standalone locks

A keypad or a single-door card lock that makes its own decisions. The code is usually shared, any record of entries lives inside the lock, and changing a code means walking to every door with a programming card or the master code. This is where a dental suite off Mason Road or a service company in a Highway 90 office-warehouse typically starts.

Stage 2: one networked site

A controller, several readers and management software. Every person carries their own credential, a lost badge is deleted in seconds, and there is a log of who opened what. Door hardware from stage 1 is often kept; the readers and the controller are what change.

Stage 3: managed across locations

Several sites on one platform, one user list, administrators limited to their own site, and links to cameras or alarm panels. Going from stage 2 to stage 3 may keep your controllers if the platform supports hosted or cloud management, which is worth checking before you open a second location.

Before adding a door: five budgets to check

Adding doors to a live system looks simple on a floor plan. In the equipment closet, five budgets decide whether it is simple.

1. Ports and points. A door normally uses a reader port, a relay output for the lock, and two inputs for the door position switch and request-to-exit. A two-door board that is full needs an expansion module or a second controller.
2. License seats. Many platforms license by door or by reader. Check the count before the new reader is on the wall, not after.
3. Power. Every lock and reader draws current from the power supply, and the total should stay comfortably under its rating; around 80 percent is a common ceiling.
4. Battery standby. The batteries have to carry the full load for as many hours as you want the doors to keep working in an outage, and they lose capacity faster in hot Katy electrical closets and attics.
5. Network. A new controller or IP reader needs a switch port, sometimes PoE, and a clear path out through the firewall if the system is cloud-managed.

Katy building types and what each one changes

Tilt-wall office-warehouse and flex space

Along the I-10 corridor, Highway 90 and the Grand Parkway, many businesses share a building with a small front office and a tall warehouse. Cable for new readers runs through the open joist space, which means a lift and working around racking. Overhead dock doors can be monitored with a contact so the system reports one left open overnight, and the man door beside the dock usually gets an exit device rather than a maglock.

Strip-center storefronts and medical or dental suites

Aluminum storefront doors have narrow stiles, which limits the hardware that fits. Electric strikes made for narrow-stile frames or electrified panic devices are the usual choices, and landlord approval is needed before the storefront is modified. Shared walls with neighboring tenants also affect where cable can run.

Church and private school campuses

Dozens of doors that follow a weekly schedule plus one-off events, a school wing that must stay locked during services, and the need to lock every exterior door at once from a single button or phone.

Amenity centers in master-planned communities

In Cinco Ranch, Grand Lakes, Cane Island, Elyson and similar communities, the upgrade conversation is often less about the fob itself and more about management: guest passes, pool-season hours, a camera clip for every gate entry, and a management company that can make changes remotely. If the fobs themselves are the problem, our Katy replacement page walks through that changeover.

New-build homes

Owners in newer sections often replace builder-grade keypad deadbolts with smart locks on the home network, so codes can be issued and revoked from a phone.

Opening a second location without running two systems

Katy companies often expand west to Brookshire and Fulshear, north to Cypress or south to Sugar Land. The mistake is buying whatever the new landlord’s preferred vendor installs, which leaves you with two databases, two apps and two sets of badges.

• One platform, two controllers. The new site gets its own controller, connected to the same cloud account or to your central server over a VPN, so the user list is shared.
• One person, one credential. Access levels decide which sites and doors each person can open. A technician who works both sites carries one badge.
• Matching technology. If the first site still uses prox, do not buy prox for the second. Upgrade both to an encrypted credential so the weaker site does not undermine the stronger one.
• Site administrators. A branch manager can manage their own doors without seeing or changing the other location.
• Local survivability. Each controller should keep working if the internet link between sites drops.

What EVOTECH does on a Katy upgrade call

Because we are based in Katy, phased work fits well here: one wing this month, the warehouse next quarter, without a long trip each time.

1. Walk every door and gate, and note what each one should do and when.
2. Open the controller cabinet, photograph the wiring, and record the power supply rating, the measured load and the battery dates.
3. Check the software version, license count, user count and who holds administrator access.
4. Write an itemized plan in phases: security fixes, then added doors, then integrations.
5. Install outside business hours where the doors are busy, and check every opening for badge reads, free exit, door-held and forced-entry alerts, and release on alarm.
6. Train at least two administrators, so the business is never locked out of its own system when one person leaves.

What changes the cost of a Katy upgrade

• The number of doors added versus doors only re-equipped.
• The cable path: open warehouse joists need a lift; hard-lid ceilings in finished suites need access panels or careful fishing.
• Expansion modules versus an additional controller.
• License model and the number of users and credentials.
• Door type: narrow-stile storefront, hollow metal or wood, and whether it is fire-rated. Field changes to a fire-rated door are limited to what its listing allows, so electrified hardware must be chosen to suit it.
• Power supply and battery upgrades uncovered by the capacity check.
• Integration with cameras, intercoms or an alarm panel.

Every quote is itemized by phase, so you can approve the first step without committing to the rest.

Katy upgrade mistakes we get called in to fix

• Batteries that could not carry the new load. The doors went dead partway through a multi-day outage like the ones after Hurricane Beryl in 2024, because locks were added without re-sizing standby.
• A single administrator. The only person with the login left the company, and nobody could add a badge.
• Strike preload on storefronts. HVAC pressure or tight weatherstrip pushes the door against the strike, so it buzzes but will not release. The fix is adjustment of the closer, the seal or the strike, not a new lock.
• A new door missing from access levels. The reader was added to the software but not to the right schedules, and the staff found out at 7 a.m. on Monday.
• A maglock left off the fire alarm release. Any added maglock must drop on alarm and have a working exit sensor and push button, and that has to be tested, not assumed.

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