Alamo Heights Security for a Town That Locks Up Early

In 1890 the Chamberlin American Investment Company of Denver began developing Alamo Heights on a 3.4-square-mile tract north of San Antonio. The ground had been settled decades earlier by George Washington Brackenridge and Charles Anderson, and Anderson’s mansion later became the Argyle Hotel. The city says it is the oldest structure still standing within its limits. Residents incorporated in 1922, and the school district, which had begun in 1909 in a two-room frame building on Townsend Avenue, became independent a year later.

The city’s history page also records, with evident pride, that Alamo Heights became the only municipality in the county with all of its streets paved. That is the kind of civic achievement a careful town brags about. The 2020 Census counted 7,357 residents, and Census estimates put the median owner-occupied home well into six figures. Houses like that draw admirers. A few of them come at night.

The Alamo Heights Police Department has been unusually blunt about car break-ins. Its December 2024 community alert described vehicle burglaries as one of the most common forms of larceny and one of the easiest to prevent, then named the cause in capitals: unlocked cars. The burglar’s method needs no tools. Walk the block in the small hours, lift every door handle, and take whatever is sitting on the console.

A tired person forgets to press the fob. Technology does not get tired. A security camera aimed at the curb and the driveway records who walked up and when, and motion lighting makes the stroll less relaxing. Garage door control tells your phone when the door has been open since dinner. For more on what thieves want from a parked car, see our guide to vehicle burglary and catalytic converter theft.

Broadway is the commercial spine of Alamo Heights, with its retail clusters a short walk from quiet residential streets. In June 2026, Hoodline reported a run of smash-and-grab break-ins at businesses along the strip, including one at a barbershop on June 15, and police had announced no arrests at the time of the report. A smashed front window is only the start of the bill. There is the cleanup, the board-up, the insurance claim, and the morning the shop stays closed.

We plan business security for the hours when nobody is inside. Glass-break sensors that react to the first impact. Contacts on the rear service door, which usually faces the alley and gets the least light. Cameras that see the parking lot and the back entrance, not just the register. A monitored panel means somebody hears about it at night, not when the first employee arrives with the coffee.

Small shops have a second exposure that has nothing to do with glass: keys. Every former employee who never returned one is a loose end. Access control replaces the brass key with a credential you can switch off the afternoon someone leaves, and the system keeps a record of which badge opened the back door at 6:40 on a Sunday morning. That record settles a lot of awkward questions before they become accusations.

Building began east of Broadway, in Montclair, by 1908, on homes more modest than the estates to the west. A century of remodeling later, many Alamo Heights houses share the quirks of age: plaster walls, original wood windows, additions from three different decades, and back doors hung long before anyone thought about a deadbolt. About 72 percent of homes are owner-occupied, according to Census estimates, so most households here are thinking in decades, not leases.

Wireless sensors let us protect an older house without fishing wire through lath. Small contacts on each opening, motion detection in the halls, and a touchscreen keypad by the door the family actually uses. Old plumbing deserves attention too. A water and freeze sensor beside the water heater or under the kitchen sink pays for its space the first January night a pipe gives way.

The company that would show up at your Alamo Heights door is San Antonio Protection Services, locally owned since 2010 and holder of Texas DPS Private Security Bureau license B16898. Alamo Heights is a short drive for our technicians. We walk the property with you and look at it the way a stranger on the sidewalk would: which windows are hidden by shrubs, which doors face the alley, and what a previous owner’s alarm panel can still do.

You get a written plan with options and room to think. If you go ahead, we install it, show everyone in the house how it works, and connect it to 24/7 alarm monitoring from a UL-listed central station. There is no tablet thrust across your kitchen table. It starts with a free security assessment.