Pond clean-out service that resets the system without shocking the fish
A full clean-out resets a pond that has fallen behind: sludge, muck and dead plant matter out, filters rebuilt, and water chemistry brought back before the fish return.
Our clean-out process
- Fish moved to aerated holding tanks with their own pond water
- Pond drained, sludge and debris removed, rock and liner rinsed (never pressure-washed bare)
- Skimmer, filter media and UV serviced or replaced
- Pump and plumbing inspected; leaks and worn seals noted
- Refill with dechlorinated water, temperature-matched, bacteria re-seeded
- Fish acclimated and returned; follow-up water test scheduled
When you need a clean-out vs. maintenance
If the water smells, the bottom is more than an inch deep in muck, or the fish are gasping at the surface in the morning, the system needs a reset. If the water is mostly clear and the problem is string algae or a dirty filter, a maintenance visit is the cheaper fix. We'll tell you which on the assessment call.
Signs you need cleaning help
- The bottom has more than an inch of muck
- The water smells, especially in the morning
- Fish gasp at the surface after sunrise
- String algae covers the rock and the falls
- The pond hasn't been drained in more than three years
What drives the cost
Clean-outs are priced by volume, the amount of debris and whether filters need rebuilding. Most residential ponds are a single-day job; large ponds and commercial features run two or more days with fish held under aeration throughout.
What this service covers
Pond cleaning & clean-outs sits under the wider heading of pond maintenance. Clients tend to call it pond clean-out or koi pond cleaning; whatever the name, the work breaks down into a few distinct jobs:
Full drain-and-clean
Fish held, pond drained, sludge removed, filters rebuilt, refilled and re-seeded.
Partial clean and vacuum
Bottom vacuumed and filters serviced without draining, for ponds that haven't fallen far behind.
Spring clean-outs
Annual reset after winter leaf drop and before summer heat.
Filter and skimmer rebuilds
Media replaced, baskets and bulkheads repaired, flow restored.
Post-construction first clean
First service after a new build to remove construction fines and confirm the system is cycling.
Terms you'll hear from our technicians on this work: sludge, muck, pond vacuum, dechlorinator, temperature matching, bacteria re-seeding, holding tank, aeration, biofilm.
Where we offer it
Routed service through Orange County, Los Angeles, San Diego County, the Inland Empire and the Coachella Valley, with construction and commercial crews traveling to Arizona.
Pond Cleaning & Clean-Outs across Southern California and Arizona
Orange County home base, routed crews from Los Angeles to San Diego and the desert. One call, one crew, written findings.
Before and after: cleaning calls
Customer story
A turtle pond rebuilt to run on a weekly back-flush
“Wes and his crew are fantastic. They've been out a couple of times to make it the best possible scenario for everyone. I try to do it as naturally as possible, without chemicals. The bio-filter with the UV light helps immensely. Once a week I back-flush and we're good to go. Clean water. Everybody loves it. The turtles love it.”
Homeowner
A homeowner on her rebuilt turtle and koi pond: Koi Pros added a bio-filter with UV so the water stays clear without chemicals, and the monthly maintenance that used to overwhelm her is now a once-a-week back-flush.
Check out Koi Pros projects
Koi ponds, waterfalls and water features we've designed, built and maintain across Southern California, in one minute. The same crew handles cleaning.
Guides on cleaning
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DIY Pond Cleaning vs Hiring a Professional
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Pond Water Quality Parameters: Testing and Management Guide
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Questions about cleaning
How long does a pond cleaning take?
Most residential ponds are a single day. Large ponds and commercial features take two or more, and we schedule so the fish are never held overnight without aeration and monitoring.
Is a spring clean-out necessary every year?
For ponds under trees or without bottom drains, usually yes. Ponds on a maintenance plan with good filtration can often go two or three years between full clean-outs.