Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
Before
After
Before
After
Before
AfterLinear Access Control Installation: The Concord Owner’s Guide
Linear access control installation in Concord typically runs $680-$1,850 for a complete keypad or card-reader setup, depending on whether we’re pulling wire through existing conduit or trenching new runs across the driveway. Most Linear ACP (Access Control Platform) retrofits on gates already fitted with Linear actuators finish in a single scheduled day. We stock Linear-compatible control boards, keypads, and receiver modules on our Concord trucks, so you’re not waiting on a parts shipment from Illinois.
Most Concord owners realize their Linear access control is failing when the gate stops responding to the keypad but still works fine with the remote, or when the intercom at the pillar goes dead while the gate motor itself hums along. That split behavior, where one entry method dies and another survives, usually points to the control board or the wiring run between the keypad and the operator, not the motor.
Which Linear Models This Applies To
Linear access control hardware breaks into three families you’re likely to encounter around Concord: the legacy ACP (Access Control Platform) series, the current Edge E1/E2 series, and the standalone AK-11 and AK-31 keypad units. The ACP boards, common on community gates installed between 2008 and 2018, use a 12-pin Molex connector layout that Linear revised in 2019. The newer Edge series shifted to a 16-pin configuration with integrated Wi-Fi provisioning, so an ACP keypad will not seat on an Edge board without an adapter harness we rarely recommend.
To identify what you have, open the pedestal or pillar box and read the white adhesive label on the control board’s upper right corner. The part number format is ACP0XXXX for legacy units or EDGE-E1/EDGE-E2 for current production. For keypads alone, the AK-11 (single-code) and AK-31 (multi-code, 480 users) are stamped into the plastic housing below the membrane buttons.
On OEM versus aftermarket for Linear specifically: we install Linear factory boards for control systems because the firmware handshake between board and actuator is proprietary. For keypads and receivers, we use Linear OEM or ETL-listed equivalents from Security Brands that match the MHz spec exactly, 318 MHz for older Linear remotes, 433 MHz for post-2016 systems. Mixing frequencies is the most common self-install mistake we correct in Concord, and it wastes a morning.
Signs Your Linear Access Control Installation Is Failing
- Keypad accepts the code but the gate doesn’t move. The keypad membrane and processor are working; the failure is in the relay output or the wiring run to the operator. We find corroded low-voltage connections in about 40% of Concord calls, especially on gates within a half-mile of the BART corridor where the clay soil holds moisture against junction boxes.
- Intercom audio cuts in and out, or goes completely silent. The voice module on Linear ACP systems draws power from the same 24VAC transformer that feeds the board. When the transformer degrades, audio fails before the logic board does because the amplifier stage is more voltage-sensitive. We test the transformer under load before quoting a board replacement.
- Remote works from 50 feet but not from the street. This range collapse usually means the external receiver antenna is fractured where it exits the metal pedestal, or the receiver module itself is drifting off-frequency. Concord’s summer heat cycles fatigue antenna wire at the strain relief point.
- Gate opens on its own, typically between 2 a.m. and 5 a.m. The “phantom open” on Linear systems is almost always a stuck relay on the control board, not a ghost in the remote. The relay contacts weld closed after years of arcing, and the board interprets that as a continuous open command. This is a board replacement, not a programming fix.
- Keypad backlight works, no buttons register. The membrane switch layer beneath the buttons has separated from the circuit traces. On AK-11 and AK-31 units, this is a replace-the-keypad situation; the membrane is not field-serviceable and attempting to peel and re-adhere it traps debris that causes phantom keypresses.
BeforeAfterReplacement Cost & What’s Included
| Service | Typical Range in Concord |
|---|---|
| Linear keypad replacement (AK-11 or AK-31) | $340-$520 |
| Linear control board swap (ACP or Edge series) | $680-$940 |
| Complete access control installation, new gate | $1,250-$1,850 |
| Wire run replacement, conduit intact | $180-$340 |
| Trenching and new conduit, per linear foot | $28-$45 |
The spread on control board swaps depends on whether your pedestal has working conduit or if we’re fishing new 18/2 and 22/4 through a buried line that rodents have compromised. On every Linear access control installation, we deliver a written price before touching tools, under Haven Standard Clause 1. The price we write is the price on the invoice. Our 365-Day Done Right Promise covers the full installation, including the wire run and any programming.
Under Clause 4, you receive a photographed record of every connection, every DIP switch position, and every programmed code before we leave. If another technician services the gate later, they won’t need to rediscover what we already documented.
DIY or Call Us?
There’s a safe middle ground here. A homeowner can verify that the keypad has power at the pedestal, check whether the operator’s manual release works smoothly, and confirm that remotes still trigger the gate, which isolates the failure to the access side. What we don’t recommend is opening the control board enclosure to probe live 24VAC terminals or attempting to reprogram a Linear Edge board without the dealer software. The Edge series requires Linear’s PROS software or the mobile app with a registered dealer login; consumer-level access won’t clear fault codes or pair new keypads.
The other DIY hazard is the 120VAC feed that powers most pedestal transformers. If your gate is near a pool equipment pad or irrigation controller, the junction box may share a wet location rating that doesn’t forgive a sloppy wire nut. We’ve rebuilt three Concord installations this year where a homeowner’s waterproofing failed and took out the new board within a month.
We’re not affiliated with Linear LLC; we’re an independent service provider with nine automation brands in our inventory. If you want a second opinion on a written estimate from another company, bring it by and we’ll review it at no cost. For a measured, written quote on your Linear access control installation, call (510) 726-7050.
FAQs
Most Linear keypads last 8-12 years in Concord’s climate, though units in direct afternoon sun near the Diablo foothills age faster; the membrane buttons UV-degrade and the housing plastic becomes brittle. Control boards typically outlast their first keypad if the pedestal transformer is properly sized and the box stays dry. Call (510) 726-7050 and we’ll inspect yours at no charge.
Keypad membrane failures and fried receiver modules are replacement-only; the parts are sealed and not economically repairable. Control boards with single relay failures can sometimes be repaired at the component level, but we quote replacement because board-level repair in the field lacks the environmental testing to guarantee longevity. We write both options when repair is feasible.
A keypad or receiver swap on existing wiring takes 90 minutes to two hours. A full control board replacement with reprogramming runs three to four hours. New installations requiring trenching across a Concord driveway are scheduled across two days to allow for inspection and backfill settlement. We give you a written time estimate with the price.
We carry AK-11 and AK-31 keypads, ACP and Edge control boards, and 318 MHz and 433 MHz receiver modules on our Concord trucks. Less common items like the Linear Wiegand interface board or long-range antenna kits are available next-day from our Bay Area supplier. If you have the part number from your failed unit, call (510) 726-7050 and we’ll confirm stock before dispatching.
Written by Adrian Vance, Owner, Vance Gate Repair Concord at Vance Gate Repair Concord, serving Concord and nearby areas.