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 Installation Across Altadena
Gate installation in Altadena runs between $1,800 and $9,500 for most residential jobs, depending on whether you’re hanging a simple pedestrian gate or a fully automated sliding driveway gate with access control. We’re Ironworks Gate Co., and we’ve been doing this work for over 42 years across the San Gabriel foothills. If you live in Altadena and need a gate that closes square, opens on command, and stays within LA County code, call us at (747) 277-8422. We schedule free estimates, and a live person answers the phone around the clock.
Why Ironworks Gate Co. Is Altadena’s Preferred Gate Installation Company
Altadena is different from every city around it, and not just because of the mountains. It has no city hall. Every permit, every inspection, every setback rule flows through LA County Building and Safety in Alhambra. That single fact trips up contractors from Pasadena and San Gabriel all the time, and homeowners pay for it in failed inspections and rework. Our crews work Altadena properties week in and week out, so the county process is not a surprise to us. It’s just how the job gets done.
Victor Salinas, who leads our company, started on gates in 1984. He has seen Altadena change through fires, droughts, and rebuilds, and he trains every technician on the K.E.Y.S. standard: Krafted right, Every time, Your home first, Standing behind it. That last part is not a slogan. Every completed gate job in Altadena carries our written 90-Day Done Right Promise, which says plainly: if it is not right, we come back and make it right. No paperwork, no arguing.
We also know the local housing stock. Altadena’s pre-fire neighborhoods were full of 1920s to 1950s Craftsman bungalows and Spanish Colonial homes on generously sized foothill lots, many with original swing gates that predate modern safety rules. Post-Eaton Fire rebuilds are adding brand-new construction alongside those surviving homes. That means our installers show up to a 1948 gate on a Tuesday and a brand-new slab-and-steel project on a Thursday. We’re equipped for both.
Our Gate Installation Services in Altadena
Our Gate Installation team handles the full scope, from the first concrete pour to the final keypad programming. Here is what we install most often in Altadena.
Driveway Gate Installation
A driveway gate in Altadena has to do more than open and close. It has to hold up under Santa Ana wind events that channel down the San Gabriel Mountain foothills harder than they hit flatland communities. We hang steel and aluminum driveway gates with wind-rated hardware and set posts to county-approved depth. Most installations include a keypad at the property line and safety photocells, whether the job is a rebuild or a replacement.
Pedestrian Gate Installation
Pedestrian gates get ignored until they don’t latch. In Altadena’s older neighborhood grids, foot gates off Mariposa Street and around Farnsworth Park are often original to the house, with sagging hinges and stripped latch plates. We install new pedestrian gates with proper post footings, self-closing hinges where fire code requires them, and latch hardware that holds through wind season.
Sliding Gate Installation
Sliding gates make sense on Altadena’s longer foothill driveways, especially on lots where a swing gate would arc into a slope or a planter. We install rack-and-pinion sliding gates with LA County-compliant loop detectors at the property line. The loop detector matters. Without it, a sliding gate will not open automatically for an exiting vehicle, and we see post-fire rebuilds where a contractor missed exactly that.
Swing Gate Installation
Swing gates remain the classic Altadena look, especially double gates spanning a wide driveway approach. The critical work is in the post. Foothill drainage and decomposed granite soil make shallow post footings fail, and the gate sags at the hinge, not the panel. We dig deeper footings per county setback, sleeve posts in steel where needed, and install operators matched to the gate’s weight and wind exposure.
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 install and service Gate Installation systems built on Linear, Viking, Ghost Controls, and DoorKing operators, among others. Our technicians are trained and equipped on nine major gate-automation brands, so when an Altadena customer has a Ghost Controls opener on a rebuild or a legacy Viking on a 1960s swing gate, we know how to wire it correctly on the first visit. We stock common parts locally, which keeps repair and replacement timelines short for Altadena homes and cuts down on second trips.
Common Gate Installation Problems We See in Altadena Homes
- Post rot at the base on 1940s and 1950s swing gates. The hinge post, not the gate panel, is the failure point. Foothill drainage and decomposed granite hold moisture against the post base, and no amount of hinge adjustment fixes it. The post needs re-footing or replacement.
- Legacy operators without photo-eyes or edge sensors. Automatic gates installed before UL 325 entrapment rules went into effect do not meet current safety code. In Altadena, many of these gates are on original homes that survived the Eaton Fire, and the homeowners don’t know the operator is outdated until it fails an inspection.
- Santa Ana wind fighting the operator. A swing gate that works fine on calm days can strain its operator badly in a downslope wind event. The wind knocks the gate off its stop, the operator keeps pushing, and the motor burns out. We see this pattern noticeably more often in Altadena than a mile south in Pasadena.
- Post-fire rebuilds with county-required hardware missing. A homeowner buys a new sliding gate with a rack-and-pinion operator, but no loop detector at the property line. The county inspector flags it, and the gate won’t open automatically for exiting cars. We correct this on new installs before inspection day.
Pricing for Gate Installation in Altadena, CA
Here is what we quote most often in Altadena. A basic single swing gate with manual latch runs $1,800 to $3,200. An automated single swing gate with operator, keypad, and safety photocells typically lands between $4,500 and $7,000. A fully automated sliding driveway gate spans $6,500 to $9,500, depending on gate width, material, and whether county-required loop detectors and edge sensors are included. Pedestrian gates start around $900 and rarely exceed $2,200, even with a self-closing hinge and keyed latch.
The bigger cost drivers are post depth and material. Steel and aluminum gates cost more than wood up front but resist fire and wind damage better, which matters in Altadena’s Very High Fire Hazard Severity Zone. Every price is quoted and agreed before we turn a single bolt. Call (747) 277-8422 for a free estimate, with the price in writing before any work starts.
We Also Serve Cities Near Altadena
Our crews cover Gate Installation in Altadena and the surrounding foothill communities, including Pasadena, San Marino, San Gabriel, and Alhambra. If you’re just outside Altadena’s unincorporated boundaries, we can usually schedule your estimate the same week, and we’ll bring the same LA County permitting knowledge to the job.
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 Installation in Altadena
Your operator is fighting the wind, not the gate. In Altadena, downslope gusts off the San Gabriels hit a swing gate broadside, knock it off its stop, and the motor keeps pushing against resistance. That burns out the capacitor or the gears over time. The fix is usually a wind-rated operator with proper torque settings, plus a gate stop that holds the leaf in place when it’s not moving. We can assess yours and tell you whether it is worth repairing or replacing. Call (747) 277-8422 for an exact quote.
No, not under current UL 325 safety standards. Photo-eyes or edge sensors have been required on automatic gates for years, and LA County enforces that during inspections on any permitted work. An older gate with no photo-eyes can keep working, but if you do any permitted modification or rebuild, the county will require compliance. We can retrofit photo-eyes and edge sensors onto most legacy operators without replacing the whole system, and we’ll quote it before we start.
A loop detector is a coil of wire buried in the driveway at the property line that senses a vehicle and tells the gate to open. LA County requires it on automated sliding gates so an exiting car does not have to stop and press a keypad to leave. Contractors unfamiliar with county rules sometimes skip it, and the gate never opens automatically for exiting vehicles, which fails inspection. We install loop detectors as standard on every sliding gate job in Altadena, and we schedule the county inspection once the work is done.
Sometimes. It depends on the condition of the hinge post and the gate’s overall weight. If the post is sound and the gate swings true, we can mount a new operator and add the required photo-eyes. If the post is rotted at the base or the gate has sagged badly, the honest answer is that replacing the post and refitting the gate often costs more than hanging a new one. We’ll tell you which one applies to your gate, and you’ll have the number in writing before any work begins. Call (747) 277-8422 for a free second opinion if you already have an estimate.
Yes. Altadena is unincorporated LA County, so gate permits go through LA County Building and Safety in Alhambra, not a city hall. Any automated gate installation requires a permit, and the county applies setback rules and inspection scheduling that differ from neighboring cities. We handle the permit paperwork on every Altadena installation, because the jurisdiction is the one part of the job most homeowners and first-time contractors get wrong.
Call Ironworks Gate Co. for Gate Installation in Altadena
If you need a gate installed, replaced, or brought up to county code in Altadena, call (747) 277-8422. We’ll schedule a free estimate at your property, walk the job with you, and hand you a written price before any work starts. We stand behind every installation with our 90-Day Done Right Promise, and a live person answers the phone 24 hours a day, seven days a week. Victor Salinas and the Ironworks Gate Co. team have been doing this work since 1984, and we plan to be doing it in Altadena for another forty years.
Written by Victor Salinas, Owner at Ironworks Gate Co., serving Altadena and the San Gabriel foothills since 1984.