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
AfterFast, Reliable Gate Motor & Opener Across Altadena
Gate motor and opener work in Altadena usually falls into two buckets: either you’re rebuilding after the Eaton Fire and need a new automated gate that meets LA County fire-hardening standards, or you’ve got an older motor on a 1950s gate that’s finally giving out after years of Santa Ana wind abuse. Most motor replacements here run $650 to $1,400, and most repairs run $180 to $450, depending on what’s actually failed. We’ve been working these foothill streets long enough to know the difference between a motor that’s worth saving and one that’s been undersized since the day it was bolted on. Call (626) 628-9548 and you’ll get a live person, not a menu.
Why Gatewood Fence & Gate Is Altadena’s Preferred Gate Motor & Opener Company
Hal Gatewood started this shop in 2001, and his name is still on the door and on every invoice. That matters in Altadena, because the rebuild here is not a one-off job. Entire blocks lost their gates in the Eaton Fire, and the contractors who actually know LA County’s unincorporated permitting process are the ones getting these projects done while others are still filling out the wrong forms. Our crews work Altadena weekly, from the Craftsman bungalows along Lake Avenue up to the hillside properties on the upper residential streets, and we’ve seen what happens when someone from out of the area tries to apply Pasadena rules to an Altadena job. You don’t have to explain that Altadena has no city building department. We already know. We don’t just repair what’s broken either. Hal welds on site, which means your gate stays in your driveway instead of getting hauled across town. And every job, whether it’s a $200 repair or a full motor replacement, carries the 90-Day Done Right Promise in writing.
Our Gate Motor & Opener Services in Altadena
Motor Installation
A new gate motor in Altadena needs to be sized for wind, not just for gate weight. We’ve pulled too many undersized units off gates along Rubio Canyon where Santa Ana gusts funnel down the canyon and stall a motor that would’ve been fine in flatland Pasadena. We size the operator properly, set the torque limits, and bolt everything down so you’re not calling us back after the first big wind event. Most installations run $850 to $1,800 in Altadena depending on gate type and whether we’re adding safety sensors.
Motor Repair
When a motor dies, we troubleshoot before we replace. Stripped gearboxes, burned capacitors, failed control boards, bad limit switches, and wiring that’s been gnawed through by foothill rodents are all repairable, and we do on-site welding for brackets and mounts that have cracked from years of wind load. Repair work in Altadena typically runs $180 to $450, and that includes diagnosing the actual problem, not just throwing parts at it. If the motor’s not worth saving, we’ll tell you that directly and quote the replacement before any work starts.
Linear Motor
Linear operators, sometimes called ram-style motors, work well for heavier slide gates, and we see a fair number of them on Altadena’s wider hillside lots. The motor itself is often fine; the issue is usually the limit switch alignment or a failing capacitor from repeated thermal cycling. We service Linear brand units and also retrofit linear drives onto older gates that were never designed for automation. On upper residential streets above 1,500 feet, we pay particular attention to mounting brackets, because freeze-thaw swelling in old wooden gate panels is what rips those brackets loose in the first place.
Slide Motor
Slide gates are popular on Altadena’s wider foothill lots because they don’t need swing clearance on sloped terrain. But a slide gate that drags or binds will keep killing motors, and too many folks keep replacing the motor instead of fixing the track, the rollers, or the post that’s shifted out of alignment. We check all of it before we install a single new part. Slide motor replacement in Altadena generally falls between $700 and $1,600, and we’ll always give you the number before we touch anything.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Altadena
We’re certified to service nine major gate brands, and we keep parts on the truck for the ones Altadena homeowners actually have: LiftMaster, Mighty Mule, FAAC, and BFT among them. If you’ve got a LiftMaster operator on a 1960s swing gate or a Mighty Mule on a post-fire replacement, we can pull the right board, sensor, or gearbox without ordering from a warehouse three states away. That matters when your gate is stuck open and your dog has opinions about it. Our Gate Motor & Opener team stocks the common wear items locally, so most repairs happen in one visit.
Common Gate Motor & Opener Problems We See in Altadena Homes
- Wind-stripped gearboxes on undersized swing motors. Santa Ana winds channeled down Rubio Canyon and the surrounding foothill canyons hit Altadena harder than flatland Pasadena just south of us. Motors sized for Pasadena conditions strip their gearboxes or burn out capacitors climbing against that wind resistance.
- Pre-UL 325 operators without safety sensors. Homes built through the 1950s and 1960s often still have the original gate opener, which predates modern entrapment standards. These units have no photo-eyes and no edge sensors, so they’ll keep running when the gate hits a kid, a car bumper, or a trash bin. We see this a lot on post-fire rebuilds where an older drive got reused.
- Freeze-thaw bracket failure above 1,500 feet. On the upper residential streets, seasonal freezing and thawing swells the wooden gate panels just enough to crack the operator’s mounting brackets over time. The gate starts to bind, the clutch trips constantly, and the whole thing feels like a motor problem when it’s actually a bracket and post problem.
- County permit confusion stopping projects cold. Altadena is unincorporated, so every gate permit goes through LA County Public Works, not a city hall. Homeowners who call around get told different things by different contractors, and some find out mid-project that their contractor never pulled a permit at all. We handle the county paperwork as part of the job.
Pricing for Gate Motor & Opener in Altadena, CA
Here are honest numbers for Altadena’s market. Motor repair runs $180 to $450 for most jobs: capacitors, limit switches, control board replacements, and bracket welding all fall in that range. Motor replacement runs $650 to $1,400 depending on gate type, operator brand, and whether we’re adding safety photocells. Full new installations with a new operator, safety sensors, and any needed post work run $850 to $1,800. Slide gates tend to land at the upper end because of track and roller work. Every quote is given before any work starts, in writing, and it doesn’t change at the door. We knock $40 off any repair over $200, we don’t charge a trip fee inside the county, and seniors and veterans get a permanent 10% discount. Call (626) 628-9548 and we’ll give you a real number.
We Also Serve Cities Near Altadena
While this page focuses on Gate Motor & Opener in Altadena, our crews also cover Pasadena, San Marino, Sierra Madre, and San Gabriel. If you’re just over the border in any of those communities, the same pricing, the same 90-Day Done Right Promise, and the same live-person phone answer apply.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Gate Motor & Opener in Altadena
In most cases, replacing a gate motor or opener requires an electrical permit through LA County Building and Safety, because Altadena is unincorporated and has no city building department of its own. If your gate is part of a post-Eaton Fire rebuild, the permit process also routes through the County, and the process is genuinely different from what Pasadena or Glendale contractors are used to. We handle the county paperwork as part of the job, and we’ve been through the queue enough times to know what triggers a delay and what doesn’t. Call (626) 628-9548 and we’ll tell you exactly what your property needs.
Sometimes yes, but it depends on the operator itself. If the motor housing, gearbox, and control board are fundamentally sound, we can retrofit photo-eyes and an edge sensor onto an older unit and bring it closer to modern UL 325 safety standards. But if the opener predates safety circuitry entirely, which is common on original 1950s and 1960s installs, retrofitting becomes a wiring liability rather than a money-saver. We’ll show you the unit, explain what’s salvageable, and give you a straight answer on whether repair or replacement is cheaper long term. The quote comes before any work, and it’s free to find out.
Yes, a properly sized battery backup will keep your slide gate operational through the power outages that come with Santa Ana wind events in Altadena. The key is sizing the battery to the gate’s weight and the slide track’s current draw, and that’s where a lot of generic installs fall short. We install battery backups on both existing and new slide gate systems, and we test them under load so you know they’ll actually work when the power drops. Most battery backup additions in Altadena run $400 to $900 installed, and it’s one of the smarter upgrades for anyone on the hillside streets.
The sag is in the hinge post, not in the middle of the gate, and that’s where the repair has to start. We’ve seen too many gates get new motors bolted onto a post that’s pulled out of plumb, which just burns out the new motor in another season or two. The fix is resetting or replacing the hinge post, realigning the gate, and only then addressing the operator if it’s genuinely undersized or worn. In Altadena’s wind corridors, that usually means upsizing the motor and reinforcing the post footing at the same time. The cost for a full post reset plus motor work typically runs $600 to $1,200.
Yes, if the LiftMaster operator is in decent condition and has enough torque capacity for a metal gate, which runs heavier than wood. This is a smart path for Eaton Fire rebuilds where the county’s fire-hardening guidance pushes toward non-combustible materials anyway. We can fabricate a metal gate that matches the proportions of the original, hang it on new hardware, and adapt your existing LiftMaster operator to drive it, with fresh safety photocells and a loop detector added if needed. Full metal gate fabrication with existing motor adaptation in Altadena generally runs $1,200 to $3,500 depending on size and design.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Altadena and surrounding foothill communities since 2001.
Contact Us
If your gate motor is dead, struggling, or just over twenty years old and acting like it, call (626) 628-9548. Hal or one of the crew will answer, ask a few questions, and give you a free estimate before any work begins. You’ll get a real number, a real schedule, and a 90-Day Done Right Promise in writing. That’s how it works here.