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.
Fast, Reliable Gate Installation in Diamond Bar
A new driveway gate in Diamond Bar typically costs between $3,800 and $12,000 installed, with custom ornamental steel gates on hillside properties running $9,000 to $18,000 depending on size, automation, and how much work the slope demands. Most standard installations take two to three days from first measure to final tuning. Hal Gatewood has worked gates in Diamond Bar long enough to know that a gate on Grandview or along Pathfinder Road is going to fight you in ways a gate on a flat Walnut lot never will.
Every Diamond Bar job starts the same way: we come out, we measure, we talk about what you actually need, and we hand you a written price before any work starts. Call (877) 610-2993 and you’ll get a live person, day or night. Not a recording, not a call center three states away.
Why Gatewood Fence & Gate Is Diamond Bar’s Preferred Gate Installation Company
Hal Gatewood put his name on the shop in 2001 and has been answering for the work ever since. That matters in Diamond Bar, where a bad gate install on a hillside driveway turns into a sagging, binding mess inside two years. The name is on the shop, and the shop is down the road. That is the oldest accountability there is.
Diamond Bar homeowners call us for the same reasons they check a contractor’s license before writing a check: we show up when we say we will, we give a written price that doesn’t move, and if something isn’t right within 90 days, Hal comes back and makes it right. That promise is stamped in writing on every job, not buried in fine print. Our crews know the 91765 hillsides, the Santa Ana wind patterns, and the way 40-year-old hinge posts lean on graded lots. A gate sags in the hinge post, not in the middle, and that is where we start.
We’re locally owned and owner-operated. We repair before we replace, and we weld on site so your gate never leaves your driveway. Diamond Bar customers get a free second opinion on any written estimate from another company, no trip charge inside the county, and a permanent 10% discount for seniors and veterans. This is our page about Gate Installation, and the same crew that handles those jobs answers the phone when you call about yours.
Our Gate Installation Services in Diamond Bar
Driveway Gate
Driveway gates in Diamond Bar do real work. They hold back 35 years of Santa Ana wind cycles and keep a custom estate private. We install steel driveway gates sized to your approach, with post footings dug deep enough that the gate stays plumb even as the hillside soil under it keeps settling. A new automatic driveway gate in Diamond Bar runs $4,500 to $14,000 depending on width, material, and operator.

Pedestrian Gate
A pedestrian gate on a Diamond Bar property is often the one that gets used ten times a day, and it’s the one most installers treat as an afterthought. We don’t. We match the pedestrian gate to the driveway gate, set the posts in concrete with the same care, and adjust the latch so it closes quietly and stays closed. Expect $1,200 to $3,200 for a quality steel pedestrian gate installed.

Sliding Gate
Sliding gates are the right call on many Diamond Bar hillside driveways where a swing gate would drag the moment the soil shifts. A properly built sliding gate rides on a track and doesn’t care about a 12% grade the way a swing gate does. We install cantilever and track-style sliding gates, with operators from FAAC, BFT, and Linear matched to the weight of the gate. Typical installs run $5,000 to $13,000.

Swing Gate
Swing gates are the gate type we work on most in Diamond Bar, because they’re the type that fails most on sloped approaches. We install single and double swing gates with hinge posts set in deep concrete footings, and we’re honest about when a curved or steep driveway should move to a sliding gate instead. We’d rather tell you the truth before the job than come back every spring to adjust a gate that keeps dragging. A double swing gate installation in Diamond Bar typically costs $6,000 to $15,000.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Diamond Bar
We’re certified to service nine major gate brands: LiftMaster, FAAC, BFT, Linear, Viking, Ghost Controls, DoorKing, Elite, and Mighty Mule. For Diamond Bar homeowners, that means we can match a new operator to an existing estate intercom system without starting from scratch. We stock the common boards, remotes, and safety photocells our Diamond Bar customers ask for, so we’re not waiting on a parts truck from Texas when your gate stops closing the week before a family party.
Common Gate Installation Problems We See in Diamond Bar Homes
- Hillside soil settlement throwing posts out of plumb. Diamond Bar’s graded hillside lots settle for decades, and a hinge post that leaned two degrees last year will bind the gate this year. We set posts deeper and check them against the actual grade, not the blueprint.
- Santa Ana wind stress on hinges and latch hardware. An exposed uphill-facing gate in Diamond Bar acts like a full sail when the Santa Anas push through. We spec heavier hinges and reinforced latch plates on those properties because we know the wind will test them every fall.
- Aging 1980s and 1990s operators on Country Estates driveways. The Country Estates has hundreds of automated gate systems with original Linear and DoorKing operators running on their last legs. We replace them with modern operators and match them to the existing keypads and intercoms.
- Rust and hinge fatigue on 35 to 55-year-old steel gates. The bulk of Diamond Bar’s housing stock dates from the late 1960s through the late 1980s, and the original wrought iron and tubular steel gates from that era are showing their age at the hinge post especially. Fix the panel without the post and you’ll fix it twice.
Pricing for Gate Installation in Diamond Bar, CA
Here’s what we actually see on Diamond Bar jobs, not a national average pulled from a spreadsheet:
- Pedestrian gate: $1,200-$3,200 installed
- Single swing driveway gate with operator: $4,500-$9,000 installed
- Double swing driveway gate with operator: $6,000-$15,000 installed
- Sliding gate with operator: $5,000-$13,000 installed
- Custom ornamental steel gate with intercom and camera entry: $9,000-$18,000 installed
The slope of your driveway moves the needle more than anything else. A steep or curved approach means longer posts, deeper concrete, and often a rack and pinion operator that pushes instead of pulls. We quote the price before we start, and that’s the price you pay. No trip charge inside the county, and the estimate is free. Call (877) 610-2993 and we’ll come measure.
We Also Serve Cities Near Diamond Bar
Our crews work throughout the eastern San Gabriel Valley, so we regularly handle gate installation in Walnut, Pomona, Chino Hills, and Los Serranos. If you’re reading this from a neighboring city, the same written pricing and 90-Day Done Right Promise apply. For a closer look at the area we cover, see Diamond Bar and the surrounding communities. One phone number gets you a real person: (877) 610-2993.
Serving Diamond Bar, CA - Our Local Coverage Area
We’re based in the Diamond Bar 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 Diamond Bar
Swing gates on Diamond Bar hillsides fail because the graded soil under the driveway keeps settling decades after the house was built, and each inch of settlement pulls the hinge post out of plumb. Once the post leans a few degrees, the gate leaf drags on the low side, binds on the high side, and every open-close cycle accelerates the wear. Flatter cities like Rowland Heights or La Puente don’t see this as often because there’s less soil movement and less grade to fight. We set Diamond Bar posts deeper than standard, and we match the gate’s weight to the post and operator, not the other way around. If your gate is dragging, call us before the post twists far enough to need full replacement.
FAAC, BFT, and Linear all make hydraulic and electromechanical operators built for the kind of heavy custom gates we see in Diamond Bar, and for steep-grade approaches we typically spec an operator with real torque capacity rather than the light-duty model a weekend installer might try to get away with. The operator has to handle the gate’s full weight plus the wind load from Santa Ana events. We match the brand to what’s already on the property, so a FAAC operator replacement integrates with the existing intercom and keypad. Call (877) 610-2993 and we’ll tell you what your gate actually needs after seeing it in person.
Yes, but the design has to change. On a curved Diamond Bar driveway, a standard swing gate will drag on the inside radius or bind on the outside as the geometry works against it. The fix is either a slide gate that follows the drive’s path or a swing gate with custom-hung hinges and a cut panel that follows the grade change. We installed a custom ornamental swing gate on a Country Estates property with a steep-grade curved driveway, replacing an aging Linear operator and reinforcing both hinge posts with deeper footings after decades of hillside soil movement. The gate operates silently, and the safety photocells are verified under UL 325. Call for a no-cost measure and we’ll tell you which design fits your driveway.
Santa Ana winds funnel directly into Diamond Bar from the east, and an exposed uphill-facing gate turns into a wind sail that flexes the hinges, hammers the latch, and overworks the operator every time a gust hits. Over a few seasons, the hardware fatigues and the gate starts rattling, sagging, or dropping its latch. We install heavier barrel hinges, reinforced latch plates, and operators with stall-force protection on wind-exposed properties. If your gate sounds louder when the wind kicks up, call (877) 610-2993 before a hinge fails at 2 a.m.
Yes. Any newly installed automatic gate in Diamond Bar must meet UL 325 safety standards, which means photo eyes or contact edges that stop and reverse the gate when something or someone is in its path. We install and verify the entrapment protection on every automatic gate we automate, and we test it in front of you before we pack up. It’s not a checkbox for us; it’s the difference between a gate that closes solidly and a gate that can hurt someone.
Call Gatewood Fence & Gate for Gate Installation in Diamond Bar
If you live in Diamond Bar and you’re tired of a gate that drags, rattles, or quit closing entirely, call (877) 610-2993. Hal Gatewood’s been doing this since 2001, he welds on site, and his name is on every invoice. We serve all of 91765, from the Country Estates to the hillside streets off Pathfinder and Grandview, and we’ll come measure for free. Every job carries the 90-Day Done Right Promise in writing. No estimate games, no price changes at the door. Just a gate that works, installed by someone who put his name on it.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Diamond Bar and the eastern San Gabriel Valley since 2001.





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