Automatic Gate Installation & Repair in San Antonio

Call Now

Get Your Free Gate Photo Estimate

Get a Free Photo Estimate

From an automatic-gate customer

“Thank you Duncan Services for installing our automatic gate in a timely and efficient manner!”

— Elizabeth W. Garcia, review excerpt
Read more customer reviews

Planning a new automatic gate or replacing an aging operator?

Get a Free Gate Photo Estimate

Airport Gate Operator Replacement

Duncan’s Services replaced an airport’s existing slide gate operator with a new LiftMaster CSL24UL. This project clip shows the old and new equipment during the replacement.

See Our Gates in Action

Fredericksburg Airbnb: Privacy Fencing & Automatic Guest Access

The owner wanted more privacy, safety, and controlled access for guests at a Fredericksburg Airbnb. Duncan’s Services replaced the existing fence with an 8-foot-tall vertical board-on-board fence using prestained wood, finished with a top cap and top trim.

We also installed a new automatic sliding gate powered by a LiftMaster CSL24UL operator. Guests and the owner can use a keypad, remote clicker, or mobile app. The owner changes the keypad code for each new guest stay.

A separate 6-foot-tall protective fence around the back of the sliding gate helps keep guests away from the gate’s travel area as it opens and closes.

The project combines a private outdoor setting with convenient guest access and a barrier around the moving gate—built around the needs of a short-term rental property.

Get a Photo Estimate for a Similar Project

Watch the Fredericksburg sliding gate in operation below. The second video shows a separate LiftMaster LA500 operator replacement.

Fredericksburg automatic cedar gate — built and installed by Duncan’s Services.

Get a Free Photo Estimate

LiftMaster LA500 operator replacement — upgrading an existing automatic swing gate.

Icon of a hand holding a smartphone, with the words "GATE OPTIONS" below.

Duncan’s Services builds, installs and repairs automatic driveway gates for homes, businesses and rental properties across San Antonio and the Hill Country. From a new entrance to an operator replacement, we help you choose a practical system for your property.

New Automatic Gate Installations

Choose a custom sliding gate or single or double swing gate, with steel construction and cedar or ornamental metal options. We plan around your driveway opening, available space, terrain, traffic and power supply.

Gate Operator Replacement & Repairs

Gate not opening, moving slowly or stopping unexpectedly? We inspect the operator, controls, sensors and gate hardware, then explain the repair options. We also replace aging operators, including LiftMaster systems such as the LA500, when appropriate for the gate.

Access Controls & Exit Sensors

Options include keypads, remotes, smartphone controls and vehicle exit sensors. Solar power and battery backup may be available depending on the system and site. Safety devices are selected for the installation; an exit sensor is not a substitute for entrapment protection.

Start With a Free Photo Estimate

Send a wide photo of the entrance, close-ups of the gate and operator, your ZIP code and a short description of what you need. If you know the opening width, include it. We’ll review the details and follow up; final pricing may require an on-site assessment.

Get a Free Photo Estimate · Call (210) 452-0342 · Text Us
Call or text daily, 8am–7pm.

Locally owned and fully insured. Qualifying installations include our 5-Year Limited Craftsmanship Warranty. Operators and access-control equipment may carry separate manufacturer warranties.