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 Repair Across San Dimas
Gate repair in San Dimas is not the same job it is 20 minutes south. Around here we are working on horse-property gates that weigh 800 pounds, swing 20 feet across a gravel drive, and run on operators that have been through ten summers of Santa Ana wind. A gate that size does not forgive a lazy fix. If your gate is sagging, grinding, or refusing to open, call (877) 610-2993. A live person answers, day or night, and we will send someone who knows San Dimas foothill properties from the south end of Valley Center Avenue up to the equestrian tracts off San Dimas Canyon Road.
Why Gatewood Fence & Gate Is San Dimas’s Preferred Gate Repair Company
Hal Gatewood started this shop in 2001, and his name is still on every invoice. That matters in a town like San Dimas, where a lot of homes were built in the 1960s and 1970s, the neighbors know each other, and word travels fast. We have fixed enough gates here to know that the ironwork on a Bonita Avenue ranch house behaves differently than the ironwork on a new build near Lone Hill. The older the gate, the more likely the hardware was custom-fabricated and the less likely anyone still makes a replacement hinge bracket for it. That is why we weld on site instead of hauling the gate to a shop. Hal or one of his crew will be in your driveway, fixing the thing where it hangs.
Every job we do in San Dimas carries the 90-Day Done Right Promise in writing. If it is not right, one call brings us back. No runaround, no fine print. We also answer the phone with a live person 24/7. Not a voicemail. Not a national call center. The person who picks up can actually talk to you about your gate.
Our Gate Repair Services in San Dimas
San Dimas keeps us busy with a particular kind of work. This is not a suburb full of vinyl gates. The town still has active equestrian zoning in its northern foothill neighborhoods, which means we see a lot of ranch-style swing and slide gates sized for horse trailers, often 16 to 20 feet wide. Those gates need a different approach than a five-foot pedestrian gate in Covina. Here is what we handle most.
Electric Gate Repair
Electric gate repair in San Dimas usually comes down to one of three things: a control board that no longer communicates, a motor that has burned out from fighting wind-loaded panels, or wiring that has degraded in the inland heat. On foothill properties we often find the operator itself is fine but the power feed has been run 150 feet from the panel on undersized wire. We bring a line voltage tester first, before we ever assume the motor is the problem. That diagnostic step alone saves San Dimas homeowners a lot of money.

Automatic Gate Repair
Automatic gates in San Dimas take a beating. Santa Ana winds funnel down through the foothill gaps and slam into broad gate panels. Hinges pull loose, welds crack, and operators overheat trying to push against the load. We service the operators most common here, including Linear, Viking, Ghost Controls, and DoorKing. We stock parts for those brands and can usually get an older unit running the same day.

Hinge & Post Repair
A gate sags in the hinge post, not in the middle. That is where we start. On San Dimas horse properties the hinge posts are often set in soil that has been compacted and loosened by decades of livestock traffic and heavy trailer use. The post shifts, the gate drops, and the latch no longer lines up. We reset posts in new concrete, reinforce the hinge weld points, and get the gate swinging true again. If the post is beyond saving, we cut it out and set a new one. We do not try to shim a bad foundation.

Gate Realignment
Gate realignment in San Dimas is frequently the fix when a gate drags on the gravel or the wheels chew up the track. Long driveways on acreage lots shift with the seasons. The ground moves, the gate frame twists, and suddenly the operator is fighting friction it was never designed for. We square the frame, adjust the hinges, re-hang the panel, and reset the operator limits so the gate closes without slamming. Show me the gate closing on its own and I will show you where it is failing. That is the job: finding the part that is out of plumb before it takes out the operator.

What happens when you call
- 1
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 San Dimas
We are certified to service nine major gate brands, but in San Dimas we see a lot of Linear, Viking, Ghost Controls, and DoorKing. Older DoorKing units are everywhere in the equestrian tracts because they were the workhorse choice for wide custom gates back when these properties were built. We keep common parts in stock for those brands, which means faster turnaround for San Dimas customers. If you have an operator that predates the iPhone and you need a control board, call us before you assume it is obsolete. We can often retrofit a modern board into an older chassis and save you the cost of a full operator replacement.
Common Gate Repair Problems We See in San Dimas Homes
- Worn hinge posts from decades of horse trailer use. Properties with 16 to 20-foot gates and daily livestock traffic put enormous load on the post footing. By the time the gate visibly sags, the post has been moving for years.
- Voltage drop killing operators on long single-phase runs. On acreage lots, the operator pedestal is often far from the panel. When the line voltage drops under load, the motor pulls more amps and burns out early. We always check line voltage before condemning the operator.
- Santa Ana wind damage. Direct hits from foothill wind events bend posts out of plumb, snap weld points on swing gates, and overheat operator motors. We reinforce frames and posts on wind-exposed entries.
- Corrosion from hard San Gabriel Valley water and UV exposure. Original wrought-iron and tubular steel gates from the 1960s through the 1980s are rusting at the base, especially where irrigation water pools near the post. We cut out rusted sections and weld in new steel on site.
Pricing for Gate Repair in San Dimas, CA
A typical hinge and post repair in San Dimas runs $280 to $650 depending on whether we are resetting one post or two and how much welding the frame needs. Gate realignment is usually $180 to $450. Electric gate repair, including a service call and most control board replacements, lands between $220 and $580. A full operator replacement on a wide equestrian gate can run $1,200 to $3,500 depending on the brand and the weight of the panel. Every price is quoted and agreed before we start. No surprises at the door. We offer $40 off any repair over $200, no trip charge inside the county, a free second opinion on any written estimate, and a permanent 10% discount for seniors and veterans. Call (877) 610-2993 for an exact quote. Estimates are free.
We Also Serve Cities Near San Dimas
Our Gate Repair team works throughout the San Gabriel Valley and the foothills east of the 605. If you are in Charter Oak, La Verne, Pomona, or Glendora, we cover those areas too. Same local crew, same 90-Day Done Right Promise. See our Gate Repair in San Dimas page for details on response times and pricing specific to this area.
Serving San Dimas, CA - Our Local Coverage Area
We’re based in the San Dimas 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 Repair in San Dimas
Most gates from the 1970s and 1980s can be retrofitted with modern safety photocells, edge sensors, and UL 325-compliant operator logic without replacing the entire gate. The deciding factors are hinge post integrity, frame rust at the base, and whether the panel is still square. We recently rebuilt a 20-foot swing gate on a northern foothill estate where the original DoorKing operator had burned out after years of fighting Santa Ana wind loads. Our tech found severe voltage drop at the detached operator pedestal due to a long 120V run, and the hinge post had pulled out of plumb from repeated wind stress. We installed a new post footing, upgraded the line feed, and replaced the control board, then added a safety photocell to meet UL 325. That gate now cycles smoothly even in 40 mph gusts. Your gate probably can too. Call (877) 610-2993 and we will tell you straight.
Because the operator is fighting a wind-loaded panel on a gate that was never balanced for that kind of load. In San Dimas, Santa Ana winds funnel through the foothill gaps and hit broad swing gates with sustained force. The operator draws more amps to push against the resistance, overheats, and burns out the motor or the control board. The fix is usually a combination of reinforcing the frame, rebalancing the panel, and sometimes upgrading the operator to a higher torque model. Call (877) 610-2993 for an assessment. We will tell you what is actually needed, not what is easiest to sell.
Yes. Custom-fabricated gates do not have manufacturer support for hinges, latches, or operator brackets, so we fabricate replacement parts on site, in your driveway, with a welder. The gate stays where it hangs. An 18-foot gate built for horse trailer access is exactly the kind of job this shop was built around. Hal has been welding and repairing gates like that since 2001.
On San Dimas acreage lots, the most common cause is voltage drop. The operator sits at the end of a long single-phase 120V run from the panel, and when the voltage sags under load, the control board does strange things: intermittent operation, false obstruction trips, repeated motor starts, premature failure. We bring a line voltage tester first, before assuming the operator has failed. Call (877) 610-2993 and ask for a voltage check. Free estimate.
A UL 325-compliant system requires monitored safety edges or photocells that reverse the gate on obstruction, plus operator logic that limits force. Most older systems in San Dimas were installed before these requirements existed. The retrofit usually involves adding a photocell at the open and close points, replacing the control board with a compliant unit, and verifying the force settings against the gate weight. We can do all of it without replacing a sound gate. Call (877) 610-2993 and we will quote it line by line.
Written by Hal Gatewood, Owner at Gatewood Fence & Gate, serving San Dimas since 2001.





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