
Repair the gate if the frame is square and the posts are solid. Replace it if either one is not. Hinges, operators, boards, control boards, and finishes are all replaceable parts. A racked frame or a leaning post is the gate itself failing, and no amount of parts fixes it.
Here is the useful thing about gates: almost everything people call a "gate problem" is actually a post problem, an operator problem, or a hinge problem. Three different bills, and only one of them is expensive.
What repairs actually cost
| Repair | Typical cost |
|---|---|
| Hinge replacement, one leaf | $150–$450 |
| Adjust and re-align a swing gate | $150–$350 |
| Roller or track replacement, slide gate | $200–$700 |
| Operator arm or motor | $400–$900 |
| Control board | $250–$600 |
| Safety photo eyes, pair | $150–$400 |
| Loop detector or exit sensor | $200–$600 |
| Re-weld and refinish a section | $400–$1,200 |
| Blast and full recoat, ornamental gate | $800–$2,500 |
| Reset or replace a post and footing | $600–$2,000 |
| New driveway gate, installed | $2,500–$8,000+ |
The pattern is clear. Almost every repair is cheaper than replacement by an order of magnitude. The exception is post work, which involves concrete and is where the numbers start converging.
The three-minute diagnosis
Do this before you call anyone.
1. The square test. Look at the gap between the gate leaf and the latch post, or between the two leaves on a dual swing. Is it even top to bottom?
- Even gap, gate just sticks → hinge or hardware. Cheap.
- Gap wider at the top → the hinge post is leaning. Post problem.
- Gap uneven and the gate itself looks like a parallelogram → the frame has racked. Gate problem.
2. The post wiggle. Push hard on the hinge post at chest height. Any movement at all means the footing is inadequate or the post has corroded at grade. This is the single most common cause of gates that "used to work fine."
3. The manual release test. On an automatic gate, disconnect the operator and move the gate by hand. If it swings or rolls smoothly with two fingers, the gate is fine and your problem is the operator. If it binds, drags, or wants to swing shut on its own, fix the gate before you blame the motor.
That third test settles more arguments than anything else. People replace $2,000 operators that were struggling against a dragging gate, and the new one struggles too.
Repair it when
- The frame is square and only the hardware is worn
- Rust is surface-level, meaning it flakes off and leaves solid metal underneath
- The operator is the failing part and the gate itself moves freely
- A wood gate has failed boards but the steel frame beneath is straight
- The finish looks tired but the structure is fine — blasting and recoating an ornamental gate makes it look new for a fraction of replacement
Replace it when
- Posts are moving and the footings would need to be redone anyway. Once you are pouring new footings, the labor to hang a new gate on them is marginal
- The frame has racked out of square and will not hold an adjustment
- Rust has eaten through tube walls or destroyed welds at the bottom rail, where water sits
- The gate is undersized for its opening, which shows up as chronic sag no hinge fixes
- Repairs are stacking. Three service calls in two years means you are paying for a new gate in installments and not getting one
- The gate cannot be brought up to current safety standards as an automated gate
That last one is worth taking seriously. Automated vehicular gates are governed by UL 325 for operators and ASTM F2200 for the gate itself, and an older gate can have gaps, exposed rollers, or a design that will not comply. If you are automating an existing gate, this gets checked.
The bottom rail is where gates die
If you want to know how much life is left in a steel or iron gate, look at the bottom rail and the bottom of each picket.
That is where water sits, where sprinkler overspray lands, where debris collects, and where the coating gets chipped by gravel. A gate can look perfect at eye level and be structurally finished at ankle level. Tap along the bottom rail with a screwdriver handle — a dull thud where it should ring, or flaking that keeps going, means the wall thickness is gone.
Same principle on wood gates: check the bottom rail and the bottom six inches of the pickets, not the parts you look at.
The opinion, since somebody has to say it
Spend the money on the posts and the operator. Save it on the gate design.
Cheap operators are the single biggest source of gate callbacks in this trade — an underpowered residential unit driving a heavy gate at high duty cycle fails early and predictably. Undersized posts are the second. Both of those are invisible on a quote and both determine whether your gate works in year eight.
Ornamental scrollwork, by contrast, is pure cost with zero effect on function. If your budget is tight, a plainer gate on proper posts with a properly sized operator will outperform a beautiful gate on marginal posts every single time.
When you should not call anyone
Squeaking, sticking, and slow operation are frequently maintenance, not failure. Grease the hinges, clear debris out of the slide track, clean the photo eye lenses with a cloth — dirty photo eyes are a shockingly common cause of a gate that "randomly" refuses to close — and check the battery in the remote before assuming the receiver died.
Wood gate boards are a genuine weekend swap if the frame is steel and straight. Match the profile, use exterior fasteners, seal all six faces of each board including the ends.
Do not DIY anything involving the operator wiring, post footings, or the safety devices. Entrapment protection on an automated gate is not a place for improvisation, and a gate is a heavy thing that moves under power.
San Antonio Gate Pros repairs and replaces wrought iron gates, sliding gates and swing gates, and automatic gate openers across San Antonio and the San Antonio area. We will tell you when it is a $200 hinge job. For pricing on a new gate, see our driveway gate cost guide or our opener cost breakdown.
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Related services in San Antonio
San Antonio Gate Pros money pages — go straight to the service you need.
- Wrought Iron Gates →
Heavy iron is still the entry people want in San Antonio, and pricing one honestly starts underground. Before anyone talks about scroll patterns, somebody has to answer a simpler question: how far down does the auger get before it stops turning?
- Swing Gates →
On limestone, a swing gate wins on arithmetic before anyone discusses looks. It needs two foundations.
- Automatic Gate Operators →
Automating a gate in San Antonio is usually an easy job with one hard part in the middle of it, and the hard part is not the operator. It is getting power and control wiring from the house out to a gate with a rock driveway sitting between the two.
- Ornamental Steel Gates →
Ornamental steel gives you the look of forged iron out of formed tube, and on a rock lot that weight saving turns directly into money. Every pound you take off the leaf is load the foundation does not have to carry, and here the foundation is the expensive part.
- Garage Gate Installation →
Garage and parking-deck gates are the one category in San Antonio where none of the usual excavation problems apply. There is no hole to drill, because the structure already gave you a flat, engineered slab to bolt to.
Frequently asked questions
Is it worth repairing an old driveway gate?
If the frame is still square and the rust is surface-level, yes — most repairs land between $150 and $600 against $2,500 to $8,000 for a new gate. If the posts are moving in the ground or the frame has racked out of square, repair is a delaying tactic and the replacement is coming anyway.
How much does gate repair cost?
Hinge replacement typically runs $150 to $450, a new operator arm $400 to $900, a control board $250 to $600, safety photo eyes $150 to $400 a pair, and re-welding and refinishing a section $400 to $1,200. Resetting a leaning post is the expensive one at $600 to $2,000 because it involves concrete.
Why does my gate sag or drag?
Almost always the post, not the gate. A gate leaf is a big lever, and its post is either moving in an undersized footing or the hinges have worn. Check whether the gap at the latch side is even top to bottom — if it is wider at the top, the post is leaning.
Should I replace the gate or just the opener?
Just the opener, if the gate itself swings or slides true and the frame is sound. A residential operator that has done ten to fifteen years has earned its retirement, and a new one is $1,800 to $4,500 installed with proper safety devices. That is much cheaper than a new gate.
Can a rusted iron gate be saved?
Surface rust, yes — media blast, treat, and recoat, typically $800 to $2,500 depending on size and detail. Rust that has eaten through the tube wall or destroyed the welds at the bottom rail is structural, and patching it buys a couple of years at best.
How long should a driveway gate last?
A properly built steel or aluminum gate on correctly set posts lasts 20 to 30 years or more, with the finish needing attention along the way. Operators last 10 to 15 years. Wood gates typically last 15 to 20. The posts and footings usually outlive everything if they were done right.
Local context
How this applies in San Antonio, TX
Every article here is written from gate work done in San Antonio and the San Antonio area, so the numbers reflect local labour, permit and material costs rather than a national average. Your own job can land either side of them depending on access, the condition of what is already there, and the materials you pick — wrought iron and ornamental steel fabrication, ranch entry gates and pipe fencing, truck-rated cantilever slide gates.
The way to turn any of this into a real answer is to have someone look at your actual situation. The free estimate is free, itemized and written down, with no deposit and no obligation. Call (877) 583-3964 or start on the San Antonio Gate Pros homepage.
Areas San Antonio Gate Pros covers
San Antonio first, then the surrounding communities of the San Antonio area. Each has its own page with local detail rather than a copy of this one:
- Alamo Heights, TX — Bexar County, population 8,400
- Schertz, TX — Guadalupe, Comal and Bexar Counties, population 45,000
- Converse, TX — Bexar County, population 28,000
- Universal City, TX — Bexar County, population 20,000
- Boerne, TX — Kendall County, population 20,000
- Helotes, TX — Bexar County, population 10,000
Or jump to the full list of San Antonio services.
More from the San Antonio Gate Pros blog
- How Much Does a Driveway Gate Cost in San Antonio?
Most driveway gates cost $2,500 to $8,000+ installed in San Antonio, TX, with the opener adding $500 to $1,500. Real prices by material and automation.
- Automatic Gate Opener Cost in San Antonio: Motors and Reality
Automatic gate opener cost in San Antonio, TX — swing versus slide pricing, what UL 325 safety devices add, and why cheap units fail.
- Driveway Gate Ideas: Styles & Costs (San Antonio Edition)
Driveway gate ideas that actually work: swing vs sliding, iron vs wood vs aluminum, and what each runs in San Antonio, TX. Real designs, real numbers.
The San Antonio Gate Pros Team
gate specialists serving San Antonio, TX
Written by the San Antonio Gate Pros team — insured gate pros with 15+ years serving San Antonio, TX and the surrounding area.