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LiftMaster operatorsFree on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
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Get your free estimateLinear Gate Installation in San Francisco: What to Know First
We install, replace, and service Linear gate openers throughout San Francisco, from the Sunset to the Bayview. Most standard Linear gate installations run between $850 and $2,400, and we’ll put the exact number in writing before any work begins. As an independent Linear service provider, we’re not affiliated with the manufacturer, but we know their equipment cold: the APeX line, the MegaCode receivers, the LDO series swing operators, and the SLR sliding operators that show up on so many San Francisco driveways. If you’ve got a Linear gate that won’t budge, grinds when it moves, or opens partway and quits, call (628) 227-2771 and we’ll sort out what’s happening.

This page is for San Francisco homeowners who have Linear equipment on an existing gate or want Linear hardware on a gate that’s being built. It covers how these systems fail in our climate, what a real repair or replacement looks like, and what you should budget.
How Linear Products Fail – and How We Fix Them
Linear builds solid equipment, but San Francisco’s salt air, fog, and steep driveways put specific stress on gate hardware. Here’s what we actually see on service calls, not what a brochure says:
- APeX controller boards corroding at the terminal block. The APeX line is common on mid-2000s through current installations around the Richmond and Sunset, where ocean fog sneaks through every gap in a gate box. The symptom is an opener that works fine one week and trips its breaker the next. The real cause is often green corrosion on the low-voltage terminals, not a bad motor. We clean or replace the terminal strip, seal the enclosure properly, and test under load before we leave.
- SLR sliding-gate limit switches losing their position. Linear’s SLR series uses magnetic limits, and on sloped San Francisco driveways we see the gate drift a few inches with every cycle until it over-travels and faults out. A lot of companies will sell you a new board to fix this. We usually find the limit magnet has slipped or the track has worn into a slight dip that fools the sensor. The fix is mechanical, not electronic, and it costs a fraction of a board replacement.
- MegaCode receiver range shrinking to almost nothing. Linear’s MegaCode technology is genuinely good, but its receivers sit inside metal gate boxes that turn into little faraday cages when the ground wire loosens. A remote that only works from ten feet away isn’t a sign of a dying remote, it’s usually a grounding issue at the receiver. We check that first, before anyone buys new transmitters.
- LDO swing-arm operators stripping the manual release. The LDO series swing operators Linear built into the 2010s have a manual release mechanism that’s easy to strip if anyone forces it during a power outage. Homeowners in Noe Valley and Glen Park with older Linear swings tell us the gate stopped opening after the last blackout. The arm moves, but the gate doesn’t. That’s a stripped release collar, not a dead gearbox. We keep OEM replacement collars on hand for exactly this repair.
- Mixing aftermarket remote clones with OEM receivers. A lot of San Francisco homes have a mix of Linear remotes that came with the house and cheaper cloned remotes bought online. Those clones work, right up until they don’t, and the receiver’s rolling-code table fills up with junk entries. Then the genuine Linear remotes stop getting picked up. We don’t sell clone remotes, and when we install Linear receivers we program them clean and test every remote the customer actually uses.
Styles & brands we work with





Our Linear Gate Installation Process
Every Linear job we do in San Francisco follows the same steps, whether it’s a single pedestrian gate in the Richmond or a double driveway gate in St. Francis Wood:
- 1
We listen first. You describe what the gate does or doesn’t do. We ask about when it started, whether it makes noise, and which remotes or keypads still work. Half the diagnosis is in that conversation.
- 2
We test the equipment. Our techs bring Linear-specific diagnostic tools and spare receivers, limit magnets, and control boards in the truck. We find the actual fault before proposing anything.
- 3
We write the price down. You get a documented quote before we touch a tool. That includes any parts, labor, and exactly what we’ll do. No verbal ballpark that turns into a different invoice.
- 4
We do the work clean. Shoe covers go on before we step inside your house or garage. Drop cloths go down under any work area. If parts need replacing, we discuss OEM versus quality aftermarket options and never install anything we wouldn’t use on our own gate.
- 5
We test under real conditions. The gate cycles at least a dozen times, we check the safety edges and photo eyes, and we make sure the opener stops and reverses the way it should. If it’s a Linear swing or slide, we watch it run full travel both directions.
- 6
We photograph the cleanup and guarantee the work. Before we leave, you get a photo of the cleaned-up work area. Every Linear installation and repair carries our 365-Day Done Right Promise: if it’s not right, we make it right.
See the difference
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AfterWhat Linear Gate Installation Costs in San Francisco
Here’s the honest picture, based on the Linear jobs we’ve done across San Francisco over the last several years:
- Linear control board replacement: $320 – $680, depending on APeX vs. older MegaCode-only boards
- Linear receiver or limit switch repair: $180 – $380, including labor and testing
- Linear swing-arm or slide-operator motor replacement: $720 – $1,400, depending on the horsepower and series
- Full Linear gate installation (single swing or slide, standard driveway): $1,800 – $3,400, including mounting, wiring, safety edges, and programming
- Double gate Linear installation with photo eyes and keypad: $2,800 – $4,800
What moves the price is the gate itself: its weight, the length of the power run, whether the existing post can carry the opener, and whether you want battery backup. We’ll tell you exactly what your job costs, in writing, before any work starts. Call (628) 227-2771 for a free estimate.
Why San Francisco Homeowners Call Latch and Post Gate Repair San Francisco for Linear Work
Cody Beckman grew up on the San Fernando Valley side of Los Angeles, where chain-link fences and sliding driveway gates were just part of the neighborhood. He studied welding and mechanical systems at Los Angeles Trade-Technical College, then spent the better part of two decades working through nearly every gate configuration the Bay Area throws at people. When a Linear gate gives us trouble, we don’t guess: we plug in the diagnostics, find the fault, and fix the actual problem instead of selling you a whole new system. That’s the difference between knowing a brand from a spec sheet and knowing it from a hundred service calls.
We’re gate specialists, not general contractors. Linear is one of the brands we work on daily, along with LiftMaster, Mighty Mule, Ghost Controls, and DoorKing. If your Linear system shares a driveway with something else, we handle that too. Every job gets the Cedarwell C.A.R.E. routine: clean up like it’s our own home, ask before we move or touch anything, respect quiet hours and family schedules, and explain the price before the work. And if you call us at 2 a.m. because your gate won’t open and your car is stuck inside, a live person picks up. A gate that opens quietly and closes all the way is one of those things you stop noticing, and that’s exactly the point.
FAQs
Yes. We retrofit Linear openers onto existing gates all over San Francisco. The important part is matching the operator’s capacity to the gate’s actual weight and travel, which we measure before recommending anything. If your gate has an older LiftMaster or DoorKing operator and you want to switch to Linear, we’ll assess the post, hinge, and track condition first and give you a written price for the conversion.
We prefer OEM Linear parts when they’re available and when they make sense for the job, especially for boards and receivers where signal compatibility matters. For mechanical parts like wheels, rollers, and some brackets, a quality aftermarket part often does the same job at a lower price. We’ll show you the options and the cost difference before we order anything, and you make the call.
If your gate or opener is still under manufacturer warranty, an improper installation can void it. We install Linear equipment to manufacturer specifications and test everything before we leave, which keeps your warranty intact. If you’re not sure whether your existing setup is under warranty, we’ll walk you through how to check.
Most Linear repairs we schedule within a few days, and we keep common Linear boards, limit magnets, and receivers stocked in our San Francisco trucks so we can often fix the problem on the first visit. If your gate is stuck and you can’t get your car out, call (628) 227-2771 and we’ll tell you how soon we can get there. A live person answers, day or night.
Usually not. When the range drops to a few feet, the issue is almost always the receiver’s ground connection or the antenna position inside the gate box, not the remote itself. We see this constantly in San Francisco, especially in the fog-heavy western neighborhoods where moisture gets into the enclosure. We’ll test the receiver, check the ground, and reprogram the remotes before we ever suggest buying new transmitters. Call (628) 227-2771 for an exact diagnosis, estimates are free.
Written by Cody Beckman, Owner, Latch and Post Gate Repair San Francisco at Latch and Post Gate Repair San Francisco, serving San Francisco and nearby areas.