Hydraulic Cylinder Repair in Ames, Iowa
When a cylinder starts drifting, weeping fluid down the rod, or won’t hold a load anymore, that’s a hydraulic cylinder repair job, plain and simple. We’ve rebuilt everything from small lock cylinders on car lifts to big excavator boom cylinders, and the pattern is almost always the same: worn seals, a scored barrel, or a rod that’s been beat up long enough that it finally gave out. If your equipment is sitting because of it, we can usually get you a straight answer on the fix and the cost the same day you call.
We run a hydraulics bench right here at our shop at 210 Freel Dr in Ames, and we do hydraulic cylinder repair for farm equipment, construction machines, forklifts, and shop lifts. Some jobs come to us, some we go get — either way, the process doesn’t change much.
How We Handle Hydraulic Cylinder Repair
Every hydraulic cylinder repair starts the same way: we pull the cylinder off the machine and get it on the bench so we can actually see what’s going on inside, not just guess from a leak on the outside. Once it’s open, we know within a few minutes whether it’s a straightforward seal kit job or something worse, like a scored barrel that’s going to need sleeving or a full cylinder replacement.
- Remove the cylinder from the machine (in the field or in our shop)
- Disassemble and inspect the barrel, rod, piston, and glands
- Measure for scoring, pitting, or out-of-round wear
- Replace head seals, piston seals, U-seals, and wiper seals to match spec (we keep common sizes like 3" and 1-1/2" wiper/piston combos on hand)
- Hone or sleeve the barrel if it’s scored, or send it out if it needs machine work we can’t do here
- Reassemble, reinstall on the machine, and bleed the system
- Run the machine under load and check for drift or leaks before we call it done
We don’t just slap a seal kit in and hand it back. If there’s scoring in the bore, a new seal kit will leak again in a matter of weeks, so we tell you up front what we’re seeing and what your options are — reseal only, hone and reseal, or full cylinder replacement. That’s part of doing hydraulic cylinder repair right instead of just fast.
Common Symptoms That Mean You Need Hydraulic Cylinder Repair
Most folks don’t call us the second a cylinder starts acting funny — they wait until it’s obvious. Here’s what we see most often before a machine finally gets brought in for hydraulic cylinder repair:
Cylinder drifts down under load
The bucket, blade, or lift arm slowly sinks even with the valve closed. That’s almost always worn piston seals letting fluid bypass internally.
Fluid weeping or streaming down the rod
A wet rod means the rod seal or wiper is done. Left alone, dirt gets pulled past the wiper and starts scoring the rod and barrel, which turns a cheap seal job into a much bigger one.
Scoring you can feel with a fingernail
If the rod has grooves you can catch a nail on, seals alone won’t fix it. That cylinder needs honing, sleeving, or full replacement — and we’ll tell you which before we start.
The other cylinder starts leaking right after this one’s fixed
This is genuinely common. If a machine runs two matched cylinders — think loader arms or a two-post lift — the one we didn’t touch has usually seen the same hours and contamination as the one that just failed. Don’t be surprised if it blows out a few weeks or months later.
How Much Does Hydraulic Cylinder Repair Cost
Pricing depends on the cylinder size, how bad the bore is, and whether we’re pulling it in your yard or hauling it to our shop. Rough ranges we see on real jobs:
- Small cylinder rebuild (lock cylinders, lift cylinders under 2"): $150–$400 in parts and labor
- Standard cylinder rebuild with seal kit, remove/install, and bleed: $400–$900
- Rebuild with honing or scoring repair on a mid-size cylinder: $700–$1,200
- If the rebuild doesn’t hold and you need a full replacement cylinder instead: add roughly $300–$800 on top of labor already done, depending on size
- Shop mileage for on-site pulls: typically billed at a flat rate for trips within about 40 miles of Ames, more beyond that
We’ve had jobs where a rebuild held fine for years, and we’ve had jobs where scoring was bad enough that the seal kit just wouldn’t seat right, and the customer ended up needing a new cylinder anyway. We’d rather tell you that’s a possibility upfront than surprise you with it later. For a deeper breakdown of what drives cost up or down, our cylinder rebuild cost guide walks through it in more detail.
If you’re running excavators or other heavy equipment, we also handle bigger jobs like excavator cylinder rebuilds out of our Boone-area service, and if you’re closer to Winterset we’ve got a dedicated page for hydraulic cylinder repair in Winterset. Either way, the same bench, seals, and process apply — we just meet you where the machine is.
Whether it’s a leaking shop lift, a drifting loader arm, or an excavator boom cylinder that’s finally given out, give us a call at 515-292-2599. We’ll ask a few questions about the symptom, get you scheduled, and get that cylinder back to holding a load instead of dropping one.
Frequently Asked Questions
How long does hydraulic cylinder repair take?
A straightforward seal kit rebuild usually takes a day or two once we have the cylinder on the bench. If the barrel needs honing or we have to order a rod, plan on closer to a week.
Can you fix a hydraulic cylinder without removing it from the machine?
Sometimes on simple lock cylinders, but most real hydraulic cylinder repair work — anything with scoring risk or a full seal kit — needs the cylinder pulled and opened up on the bench to do it right.
Why did my other cylinder start leaking right after you fixed this one?
Matched cylinders on the same machine wear at a similar rate. It’s common for the second one to fail within weeks or months of the first repair, especially if both have similar hours.
Is it cheaper to rebuild or replace a hydraulic cylinder?
Rebuilding is usually cheaper up front, running $150–$1,200 depending on size and condition. But if the bore is badly scored, a rebuild may not hold, and you’ll end up paying for a new cylinder on top of labor already spent.
Do you do hydraulic cylinder repair on-site or only in your shop?
Both. We can pull and rebuild many cylinders in your yard, and mileage is typically a flat rate within about 40 miles of our Ames shop. Bigger or trickier jobs often come back to our bench for the machine work.
Written by Josiah Ragsdale, Ames Hydraulics