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Get your free estimateLinear Gate Repair in San Antonio: What to Know First
Linear gate repair in San Antonio typically runs $185 to $480 depending on whether the failure is in the operator arm, the control board, or the gate hardware itself. Most Linear jobs are completed same-day or next-day once we diagnose the issue, and we give you the written price before any work starts. If you own a Linear gate that won’t open, won’t close, or keeps tripping its sensor, call Warden Gate Repair San Antonio at (940) 531-3336 and we’ll walk you through what’s probably wrong before we even schedule the visit.

This page is for San Antonio homeowners and property managers running Linear equipment. Linear, now under the Nortek Control umbrella, built a reputation for simple, dependable swing and slide gate operators. But simple doesn’t mean trouble-free, and San Antonio’s heat and limestone dust create a specific set of problems for these units. We’re an independent Linear service provider, which means we repair the equipment honestly without being tied to factory parts pricing or manufacturer service schedules.
Key takeaways:
- Linear gate repair in San Antonio usually costs between $185 and $480, quoted in writing before we start.
- We’re an independent Linear service provider, not a factory dealer, so we recommend only the parts your gate actually needs.
- Most Linear repairs are completed same-day or next-day.
- Every Warden tech arrives with a written price, a photo ID, and a name you already know.
How Linear Products Fail – and How We Fix Them
Linear has produced several operator lines over the years, and each has its own failure signature. Here’s what we see on San Antonio gates week after week.
- Linear LDO Series (swing gate operators): The LDO50 and LDO33 were workhorse residential operators, but the limit switch assembly corrodes over time, especially in humid months. When the limits fail, the gate over-travels and slams against the post or the wall. The fix is replacing the limit assembly and re-setting the travel range. We stock both OEM limit kits and a heavier aftermarket option that holds up better in San Antonio’s alkaline soil conditions.
- Linear SL Series (slide gate operators): The SL2000 and SL1000 are common on San Antonio estates and ranch entries. Their weak point is the drive chain tensioner. Chains stretch, the tensioner seizes, and the gate starts jerking or throwing error codes. We replace the tensioner, re-tension the chain, and re-set the operator’s force profile. If the chain itself is worn, we tell you honestly whether it’s cheaper to replace the chain or switch to a belt drive.
- Control board failures (all Linear models): Linear boards are sensitive to power surges, and San Antonio gets more lightning strikes than people expect. A board that buzzes but won’t move the gate usually has a blown relay or a fried transistor from a surge. We bench-test the board before ordering a replacement, because a lot of “dead board” calls turn out to be a $40 capacitor instead of a $300 board.
- Photo sensor misalignment (Linear MDR and APeX lines): The Linear MGR and MDR photo eyes are mounted low, and San Antonio’s clay soil shifts with rain and drought. The sensors drift out of alignment, and the gate either refuses to close or reverses mid-cycle. We check the mounting posts for heave, realign the eyes, and often add a steel brace so the ground movement doesn’t knock them out again in six months.
- Gearbox wear on older Linear operators: Linear’s earlier gear-reduction boxes used a nylon worm gear that strips under repeated load. You’ll hear the motor spin but the gate won’t move. We replace the gearbox with either a factory gear kit or a metal-gear upgrade, and we inspect the arm pivot points while we’re in there, since a binding pivot is usually what killed the gear in the first place.
Styles & brands we work with





Our Linear Gate Repair Process
Every Linear job follows the same path, whether it’s a swing gate off Alamo Heights or a slide gate on a commercial lot near the Medical Center.
- 1
Call and describe the symptom. Tell us what the gate is doing, or not doing. “It opens but won’t close,” “it buzzes,” “it slams at the end” – that’s enough for us to form a working theory and bring likely parts on the first trip.
- 2
Scheduled arrival, name and photo first. Before our tech arrives, you get their name and photo by text. At the door, they show their Warden ID badge and walk you through what they’re going to check.
- 3
Diagnosis and written price. The tech tests the operator, the board, the sensors, and the gate hardware. Then you get a written price for the repair, agreed before any work starts. No open-ended labor hours.
- 4
The repair. We use OEM Linear parts when they’re the right call. When an aftermarket part is genuinely better, like the metal gear upgrades or sealed sensor brackets, we explain why and let you choose. The quality is never a mystery.
- 5
Test and verify. We cycle the gate ten to fifteen times, test the safety reversal, check the force settings, and make sure the operator isn’t working harder than it should.
- 6
Guarantee in writing. Every repair carries the 365-Day Done Right Promise. If it fails within a year, we come back and make it right for free. That’s not a verbal promise; it’s written on your invoice.
What Linear Gate Repair Costs in San Antonio
Here’s what you can expect to pay in the San Antonio market for common Linear repairs. These are honest ranges, not bait numbers.
| Repair | Typical Cost |
|---|---|
| Limit switch assembly replacement (LDO series) | $185 – $260 |
| Photo sensor realignment and re-brace | $140 – $220 |
| Control board repair (relay or capacitor) | $120 – $280 |
| Control board replacement (OEM) | $310 – $480 |
| Gearbox replacement with metal gear upgrade | $340 – $520 |
| Full diagnostic (applied toward repair if you proceed) | $95 |
What moves the price is parts availability and whether the gate itself needs hardware work, like hinge replacement or post re-setting. We’ll always give you the number in writing before we touch a tool, and the estimate is free. Call (940) 531-3336 and we’ll talk through your specific symptom.
See the difference
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After
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AfterWhy San Antonio Homeowners Call Warden Gate Repair San Antonio for Linear Work
Warden Gate Repair San Antonio exists because opening your door to a stranger should not be the hardest part of getting your gate fixed. We send a name and a photo before our tech arrives. They show a photo ID at the door. The price is written before any work starts. And the repair is covered by our 365-Day Done Right Promise, which means if it fails, we come back free. That’s the Threshold Standard, and it applies to every visit, no exceptions.
We service Linear exclusively in the gate-and-operator world, which means we’re not splitting our attention between fifteen trades. But we also service LiftMaster, Mighty Mule, Ghost Controls, and DoorKing, so if your property has mixed brands or you’re thinking about replacing your Linear operator down the road, we can speak to the real differences between them. Our owner, Cole Rafferty, trained on automated gate systems at Los Angeles Trade-Technical College and has put nearly two decades into this work. He built Warden around a simple idea: the person letting a technician in should know the price, the name, and the plan before the door opens.
FAQs
If your Linear operator is still within its factory warranty period, we can perform the repair and document everything you need to file a claim with Linear, including the part number, the failure diagnosis, and the labor breakdown. As an independent Linear service provider, we follow warranty-safe practices so your manufacturer coverage stays intact. If it’s out of warranty, we’ll recommend the most cost-effective repair path and always give you the written price first. Call (940) 531-3336 if you’re not sure where your warranty stands.
Most Linear gate repairs are completed same-day or next-day, assuming the part is in our truck stock or locally available. We stock common Linear parts like limit switches, capacitors, and sensor brackets, so the fix often happens on the first visit. If a board or gearbox needs to be ordered, we’ll tell you the expected timeline before you commit to anything.
If your Linear operator is more than twelve to fifteen years old and the repair involves both a control board and a gearbox, replacement often makes more financial sense. We’ll give you the repair number and a realistic replacement number, and we’ll tell you which one we’d pick if it were our gate. No pressure, just math.
We use OEM Linear parts whenever they’re the best option. In some cases, like the nylon gearboxes on older models, a quality aftermarket metal gear is a genuine upgrade, and we’ll show you both options and let you decide. We never install a part we wouldn’t put on our own gate.
Yes. Most of the Linear equipment we work on in San Antonio was installed by someone else years ago, and that installer is either gone or doesn’t do repairs anymore. We take over the equipment, document what’s there, and give you a straight answer on what it needs. “Tell me what it’s doing wrong; I’ll tell you what it costs to fix it, in writing, before we start.”
Call Warden Gate Repair San Antonio for Linear Gate Repair
If your Linear gate is acting up, call (940) 531-3336. You’ll reach a live person, 24/7, not a voicemail tree. Tell us what the gate is doing. We’ll tell you what it probably needs, what it will cost, and who will be standing at your door. Free estimates, written prices, and a repair that’s guaranteed for a year.
Written by Cole Rafferty, Owner, Warden Gate Repair San Antonio at Warden Gate Repair San Antonio, serving San Antonio and nearby areas.