Linear Access Control Installation Nationwide

Linear Access Control Installation: The San Antonio Owner’s Guide

Linear access control installation in San Antonio typically runs $425 to $1,850 installed, depending on whether you need a basic keypad swap or a full telephone entry system with a magnetic lock and power supply. Most residential jobs land in the $450 to $900 range, and we stock Linear-compatible parts on the truck so the most common failures get resolved in a single visit. The way owners usually discover the problem is quiet: the keypad lights but won’t release the gate, or the card reader beeps without triggering the operator, or the telephone entry box sounds fine on the house phone but won’t dial out. Sometimes it’s not the keypad at all. It’s the wire run from the house to the gate that’s been chewed by San Antonio’s active rodent population or baked brittle by three straight summers of 100-degree heat.

Call (325) 252-5195

We’re an independent gate company, not affiliated with Linear, but we install and service their access control equipment every week because it’s what so many San Antonio homes already have. If your Linear system is acting up, this page will tell you what’s wrong, what it costs to fix, and whether you can handle it yourself or should call us at (325) 252-5195.

Which Linear Models This Applies To

Linear’s access control line splits into three families, and the compatibility gotcha that trips people up is that the older keypads and the newer ones don’t always share the same wiring protocol. The AE series (AE-100, AE-500, AE-1000, AE-2000) are the standalone keypads most common on San Antonio residential gates. They wire directly to the gate operator’s open terminals and run 12-24V AC/DC. The AK series (AK-11, AK-21, AK-31) are the heavy-duty keypads built for commercial and multi-family gates, and they need a bit more care with weather sealing because the membrane keys fail faster in direct South Texas sun. The Enterphone and telephone entry systems (like the AE-500 with phone relay) bridge the gate to your house phone or a cellular line.

The sticker on the back of your existing keypad is the fastest way to identify what you have. Write down the model number before you touch anything else. If the label is sun-faded to nothing, measure the faceplate: AE series runs roughly 3×5 inches, AK series runs closer to 4×7 inches. For replacement parts, we carry OEM Linear boards and keypads, plus quality aftermarket equivalents for the power supplies and transformers where the OEM markup doesn’t buy you any real difference. The one place we always recommend OEM Linear is the keypad membrane itself. The aftermarket versions we’ve tested don’t stand up to San Antonio’s UV and heat the way the factory Linear rubber does.

Signs Your Linear Access Control Installation Is Failing

• Keypad lights but gate doesn’t move. The most common cause is a dead relay on the keypad’s control board. The keypad thinks it’s sending the signal, but the contact inside never actually closes. We see this on Linear AE units that are 7 to 10 years old in San Antonio, where heat accelerates relay wear.
• Some keys work, others don’t. That’s the membrane keypad wearing out from the inside. Linear membranes are rated for roughly 100,000 actuations, but heavy family use plus direct sun can cut that lifespan. The key matrix develops dead zones, and there’s no reliable field repair for the membrane itself.
• Code works from outside but not with gloves or wet hands. This is a grounding issue or a failing keypad face. Linear keypads use a common ground path through the faceplate, and when the zinc coating corrodes in San Antonio’s humidity, the touch sensitivity drops off.
• Gate opens randomly or won’t stay closed. Often not the keypad at all. It’s the wire run between the house and the gate picking up voltage from a sprinkler system controller or a failing transformer. San Antonio’s clay soil shifting over time also pinches underground conduit, and we’ve found more than one wire run scraped bare by grading work.
• Telephone entry rings the house but won’t buzz the gate open. This points to the tone decoder on the telephone entry board, especially on older Linear Enterphone units. The board stops recognizing the touch-tone signal from the house phone, and the only real fix is a board swap.

Replacement Cost & What’s Included

Here’s what we quote in the San Antonio market, and you’ll see your exact number in writing before we touch anything:

The range depends on three things: how long the new wire run is if we need one, whether the existing power supply can be reused, and whether we’re working on a single swing gate or a dual-drive slide gate. Every quote includes the labor, the part, the wire and connectors, and cleanup. You get a written price before any work begins, and the 365-Day Done Right Promise covers the whole job. If it’s not right, we make it right.

DIY or Call Us?

Here’s the honest split. You can safely check a few things on a Linear access control system without any danger: confirm the breaker for the gate circuit hasn’t tripped, look for obvious chew damage on exposed wiring near the gate, and write down the model number off the back of the keypad before you call anyone. That last one saves you money because it tells us exactly what to load on the truck.

What you should not do is open the keypad and start probing wires with a multimeter if you’re not sure what you’re touching. Linear keypads run low voltage, so the shock risk is minimal, but the bigger risk is shorting the wrong two wires and frying the control board on your gate operator, which turns a $450 keypad job into a $900 operator repair. The same goes for telephone entry systems. The phone line voltage and the gate control voltage share a board, and crossing them kills the whole unit. If you’ve checked the obvious and it’s still dead, call us at (325) 252-5195 and we’ll diagnose it properly.

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