Battery-powered keyless entry installed on an apartment security gate by Duncan’s Services. Available entry and app features vary by lock model.

See keyless entry in action.

School pedestrian gate with a mechanical push-button keyless lock installed by Duncan’s Services

Keyless Entry & Security Doors in San Antonio

Duncan’s Services installs keyless locks, custom security doors and pedestrian gates for homes, apartment communities, schools and commercial properties. Choose mechanical code entry or battery-powered smart locks to suit your property.

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Home Doors & Pedestrian Gates

Upgrade a house door or custom pedestrian gate with convenient keyless entry. We install mechanical and battery-powered locks for residential doors and gates, including short-term rentals.

Apartment Mailbox Areas & Gated Facilities

We install security doors, gates and keyless entry for apartment mailbox areas, shared facilities and gated properties. Tell us which entrances need controlled access so we can help plan the right setup.

Mechanical Keyless Locks

Code-based entry without batteries, wiring, Wi-Fi or an app. For the school project shown below, we removed the old battery-powered entry locks and replaced them with mechanical keyless locks.

Battery-Powered Smart Locks

Options can include PIN codes, fingerprint entry, facial recognition and mobile-app management, depending on the lock model. We help match the features to your door or gate and how you manage access.

Driveway Gate Access Controls

We also install keypads, remotes, smartphone controls, safety photo eyes and free-exit vehicle sensors for automatic driveway gates.

Send photos of your existing door, gate and lock, plus a short description of what you need.

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See Our Keyless Entry Work