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 Parts & Welding Across Ontario
When a gate hinge tears loose from a CMU block post on a 1960s home near Historic Downtown Ontario, or a slide gate at a Milliken Avenue truck yard grinds to a halt at 6 a.m., welding is what saves the gate. Most Ontario gate failures are parts failures: corroded hinge barrels, cracked posts, worn V-track rollers, fatigued rail sections. We replace the part, weld the break, or rebuild the post on site, so the gate stays in your driveway and keeps working. Hal Gatewood has fixed gates here since 2001, and he answers the phone himself at (877) 610-2993.
Why Gatewood Fence & Gate Is Ontario’s Preferred Gate Parts & Welding Company
Ontario is a city of two gate worlds. One is the older residential grid around Historic Downtown, where 1940s to 1980s tract homes sit behind CMU block walls and wrought iron swing gates that were hung long before modern safety standards. The other is the industrial belt along the I-10 and I-15 corridors, where fleet yards and cold-storage facilities run commercial slide gates through 50 to 100 cycles a day. We work both worlds every week, and that’s the difference. A residential-only gate company will misdiagnose a Class III operator failing in an airport-adjacent yard. A commercial-only outfit will try to sell a Historic Downtown homeowner a whole new gate when the real fix is a $240 hinge post repair.
Hal Gatewood has been owner-operated since 2001. His license number is published, his address is published, and his name is on every invoice. When we tell an Ontario customer we’ll show up in a two-hour window, the person who shows up is someone whose name is on the shop. Every job carries the 90-Day Done Right Promise in writing: if it’s not right, one call brings us back, no runaround. And we answer the phone around the clock with a live person, not a voicemail tree.
Our Gate Parts & Welding Services in Ontario
Hinge Replacement
Hinge failure is the most common problem on older Ontario swing gates. The 1940s through 1980s homes near Euclid Avenue and Vineyard Avenue typically have wrought iron gates hung on hinges that have spent decades in hard water runoff from irrigation overspray. The hinge barrel rusts from the inside, the pin wears egg-shaped, and the gate drops until it drags on the latch post. We cut the old hinges off, weld heavy-duty replacement barrels and pins, and re-hang the gate level. The fix is permanent, not a temporary shim job.

Post Replacement
Here’s a truth most Ontario homeowners learn the hard way: a sagging gate is usually a post problem, not a panel problem. In the older neighborhoods around Historic Downtown, gate posts are set into CMU block walls that crack under repeated Santa Ana wind loading. When the post moves, the gate moves with it, and no amount of hinge tightening fixes it. We cut out the damaged post, pour a new footing with rebar, set a new galvanized steel post, and weld or bolt the gate back into alignment the same day.

Rail Repair
Slide gates on commercial properties along Milliken Avenue and Haven Avenue take abuse no residential gate ever sees. A truck yard gate that cycles 80 times a day wears flat spots into V-track rail ends within one season. We cut out the worn section, weld in new rail, and regrind the track so the roller trucks ride smooth again. For gates that have been run out of alignment for months, we straighten the frame before welding the new rail, or you’ll be calling us again in six months.

Custom Welding
Not every gate repair has an off-the-shelf part. On older Ontario properties, gate frames were sometimes built in a local fab shop with nonstandard dimensions. When a mid-rail cracks or a diagonal brace snaps, the right fix is welding in place, not replacing the gate. Our welding is done on site, in your driveway or at your facility, with the gate still hung. We weld steel, wrought iron, and aluminum, and we mill new hinge plates or brackets when the original is too corroded to save you money by repairing the gate instead of hauling it off.

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 Ontario
We carry parts on the truck for the operators Ontario actually runs: Viking, Ghost Controls, and DoorKing are the three we see most often on residential and light-commercial gates here. Elite operators show up in higher volumes near the airport corridor. If you have a 1990s DoorKing swing arm operator that’s grinding, a Ghost Controls slide operator that won’t learn its limits, or a Viking operator throwing a sensor fault in the afternoon heat, we can diagnose and repair it on the first visit. Our Gate Parts & Welding team stocks common boards, gears, limit switches, and loop detectors for these brands, which gets your gate back in service faster.
Common Gate Parts & Welding Problems We See in Ontario Homes
- Cracked hinge posts in older CMU block walls. The combination of hard water seepage and repeated Santa Ana wind gusts cracks the block around the post anchor, and the gate drops and binds on the latch side. Post replacement and re-welding fixes the root cause.
- Thermal expansion throwing slide gates out of alignment. Ontario summers regularly cross 105°F. Steel gate frames expand enough to push V-track rollers off tolerance, and the rail ends start mushrooming from the added friction. We see this every July and August on unshaded gates.
- Builder-grade operators hitting their first major service cycle. Ontario Ranch and other newer developments in the south are full of automated gates installed with entry-level operators when the home was built. Five to seven years later, the drive gears are worn and the limit switches fail. We replace the internals or upgrade the operator to a unit rated for the gate’s actual duty cycle.
- Undersized operators in fleet yards near the airport. Along Milliken Avenue and Haven Avenue, we regularly find residential or light-commercial operators running gates that open 50 times a day under semi-truck traffic. The drive gears in those units don’t last 18 months. We spec and install commercial-duty operators built for the cycle count.
Pricing for Gate Parts & Welding in Ontario, CA
Hinge replacement on a standard wrought iron swing gate in Ontario typically runs $180 to $340, including cutting off the old hinges and welding on the new set. Replacing a single gate post runs $400 to $800, depending on post size, footing depth, and whether the surrounding block wall needs repair. Rail repair on a commercial slide gate-run gate runs $350 to $900, driven by how much rail has to be cut out and whether the frame needs straightening first. Custom welding work is quoted by time and material: most small jobs land between $150 and $500. Every quote is written and agreed before we start, and the price you sign is the price you pay. No trip charge inside the county, and we’ll give you a free second opinion on any written estimate you’ve received. Seniors and veterans get a permanent 10% discount, and any repair over $200 knocks $40 off the bill automatically. Call (877) 610-2993 for a free estimate.
We Also Serve Cities Near Ontario
We’re based just outside Ontario and work the surrounding cities every week. That includes gate parts and welding jobs in Montclair, Upland, Chino, and Claremont. If you’re in any of those places, the same pricing and the same 90-Day Done Right Promise apply. You can reach us for Gate Parts & Welding in Ontario or any neighboring city at (877) 610-2993.
Why Ontario’s Older Gates Fail First: The Parts We Replace Most
Ontario’s industrial identity shapes what we fix. The city has been a major inland logistics hub for decades, anchored by Ontario International Airport and the dense warehouse and distribution network along the I-10, I-15, and SR-60 interchange corridors. That means hundreds of commercial gates along Milliken Avenue and Haven Avenue cycle 50 to 100 times per day. A gate that opens every 10 minutes under a loaded semi wears out its rack and pinion set, drive gears, and limit switches at a rate you’d never see in Rancho Cucamonga’s residential-heavy inventory. When one of those gates fails, it’s rarely a single broken part. It’s usually a cascade: a worn pinion gear strips the rack, the operator strains against the misaligned gate, and the limit switch burns out trying to find the close position. Fixing the first symptom without addressing the worn rack means you’re rebuilding the operator again in a year. That’s the insight behind every quote we write.
What We Do Differently: Fix the Root, Not the Symptom
Our techs got called to a 1970s CMU block home in the Historic Downtown district where a wrought iron swing gate had sagged nearly two inches. The hinge post had corroded at the base from Ontario’s hard water, so we cut out the old steel post, poured a new post footing with rebar, and welded on heavy-duty replacement hinges before re-hanging the gate. A LiftMaster operator was then aligned against the straightened gate so the safety photocell no longer faulted during the afternoon heat. That’s the job done right: the post is fixed, the gate hangs level, and the operator works with the gate instead of fighting it. Most companies would have swapped the hinges, shimmed the gate, and left the bad post buried in the wall. You’d be calling someone again in six months. Hal Gatewood has been fixing gates in Ontario since 2001 precisely because he doesn’t leave work like that behind.
Serving Ontario, CA - Our Local Coverage Area
We’re based in the Ontario 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 Parts & Welding in Ontario
Older Ontario homes in neighborhoods around ZIP 91764 and 91761 typically have gate posts set into CMU block walls that weren’t engineered for decades of wind loading from Santa Ana events. The hard water in Ontario’s supply accelerates corrosion at the base of the post, and the block around the anchor points cracks under lateral force. Once the post moves, the gate sags and every subsequent wind event makes it worse. We replace the post and pour a new footing with rebar, which is the only fix that lasts. Call (877) 610-2993 for an exact quote.
In most cases, yes. Older operators in Ontario Ranch and Historic Downtown neighborhoods often lack modern photocells or contact edges. We can add new safety photocells, pressure-sensitive edges, and in some cases a new control board that supports current UL 325 entrapment standards. If the operator is too old to retrofit safely, we’ll tell you plainly and quote a replacement instead. Call (877) 610-2993 and we’ll assess what your operator can support.
On the Milliken Avenue and Haven Avenue corridors, the fastest-wearing parts are rack and pinion sets, V-track rollers, and drive gears. These gates cycle 50 to 100 times a day under heavy truck traffic, and the operator’s drive train takes the abuse. We stock these parts locally and can usually swap a worn rack and pinion the same day we diagnose it. Call (877) 610-2993 to schedule a commercial gate inspection.
Repairing a sagging gate by welding new hinges onto a failed post is cheaper in the short term, but the gate will sag again because the post is still moving. Replacing the hinge post runs $400 to $800 in Ontario and fixes the root cause. If the post is cracked or corroded, replacement is the cheaper answer over five years. We’ll show you the condition of the post before quoting either option. Call (877) 610-2993 for a free on-site assessment.
Sometimes. The newer Ontario Ranch developments around ZIP 91762 have builder-grade gates that are often lightweight steel or aluminum with nonstandard bracket layouts. When a hinge tears out or a mid-rail cracks, the factory bracket may not be replaceable, and custom welding is the only way to make the gate solid again. Our welding is done on site, with the gate still hung, and it usually costs between $150 and $500. Call (877) 610-2993 and we’ll tell you whether your gate needs parts or welding.
Get Your Gate Fixed Right - Call Hal Today
If your Ontario gate is sagging, grinding, or not closing, call (877) 610-2993. Hal Gatewood answers. He’ll listen to what your gate is doing, tell you what he thinks it needs, and give you a free estimate before any work starts. The 90-Day Done Right Promise is in writing on every job, and the name on the shop is the same name on the invoice. Ontario gates fail in predictable ways, and we’ve been fixing them since 2001.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving Ontario since 2001.





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