Building the best and fixing the rest · Mon–Fri 8–4 · Sat 9–5 · Orange, CA · Serving Southern California & Arizona [email protected]
Koi Pros

Calabasas pond builders, water feature care and leak repair

Large gated-community lots in Hidden Hills and The Oaks with room for naturalistic ponds and streams; inland heat calls for depth and aeration.

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    Or call (714) 613-0123. No marketing emails; we only follow up about your request.

    Showa and kohaku koi through an acrylic viewing window
    Showa and kohaku through the viewing window
    Multi-tier estate stream and waterfall lit at night
    Estate stream, lit for evening
    Raised formal koi pond with stacked-stone spillway wall and stamped concrete
    Raised formal koi pond with spillway wall

    Pond and water feature conditions in Calabasas

    Every pond, fountain and lake is a small ecosystem that answers to local conditions. These are the ones that shape how we build and service water features in Calabasas.

    Tap water and fill water

    Las Virgenes Municipal Water District imports 100% of its drinking water (chloraminated, moderately hard) and supplies recycled water for landscape; HOA features near purple-pipe irrigation fight nutrient runoff.

    Heat, evaporation and wind

    Hot inland valley: upper 90s in summer, strong Santa Ana winds, cool winter nights. Depth and shade are non-negotiable for koi here.

    Soil, grade and excavation

    Shale and sandstone hillsides with clay fill on the graded estate pads in The Oaks, Hidden Hills and Mountain View Estates.

    Predators and wildlife

    Coyotes, bobcats and raccoons from the Santa Monica Mountains; herons from Malibu Creek and the Calabasas Lake community lake; mountain lions documented in the open space.

    Raccoon on a wooden deck edge
    Raccoons work shallow shelves and skimmers at night

    Leaf and debris load

    Oaks and sycamores along the creeks, eucalyptus and pine in the older tracts; fire-zone landscaping rules on most hillside lots.

    Water garden with lily pads, flagstone edging and perennial borders
    Water garden with lilies and flagstone edge

    Water features we build and service in Calabasas

    Large gated-community lots (The Oaks, Mountain View Estates, Calabasas Park) with naturalistic ponds, streams and waterfalls, the Calabasas Lake HOA with a private lake, and equestrian estates in Hidden Hills.

    Neighborhoods and communities we work in: The Oaks, Calabasas Park, Mountain View Estates, Hidden Hills, Mulwood, Old Town Calabasas.

    Residential pond, waterfall and fountain services

    Design and construction

    Scheduled care

    Repair and water loss

    Commercial water feature services in Calabasas

    Property types

    Lake and large-feature programs

    How Calabasas service is scheduled

    Calabasas is on our Los Angeles route: weekly routed maintenance, repair visits scheduled around the route, and construction crews dispatched from Orange County for the duration of a build.

    Local water features worth knowing

    If you want to see what balanced water looks like at scale before planning your own feature, Calabasas has good public examples nearby: Calabasas Lake; Malibu Creek State Park; King Gillette Ranch. The same principles — depth, circulation, filtration sized to the biological load, and shade — apply to a backyard koi pond.

    Nearby cities

    Pond and water feature service in Calabasas

    Koi ponds, waterfalls, fountains and lakes, built and cared for by crews based 30 minutes away in Orange.

    Work in Calabasas

    Photos from Calabasas projects go here as they are completed. Each one links to a project page.

    See more pond, waterfall and fountain projects

    Pond care guides for Calabasas owners

    Maintenance · 8 min

    Signs Your Pond Needs Professional Cleaning Services

    Learn the key signs your pond needs professional cleaning services, from murky water to algae growth. Keep koi...

    Maintenance · 37 min

    How Biological Filtration Works in a Koi Pond

    Biological filtration converts fish ammonia to nitrate via nitrifying bacteria on pond media. Covers cycling, media...

    Maintenance · 20 min

    Seasonal Pond Maintenance in California: Year-Round Care Guide

    Seasonal pond maintenance in California covers water chemistry, algae control, equipment inspection, and fish care...

    All pond care guides

    Koi Pros pond design and construction projects

    Check out Koi Pros projects

    Koi ponds and water features we've designed, built and maintain across Southern California, from the crews that serve Calabasas.

    Pond service questions from Calabasas

    Is Calabasas tap water safe for koi?

    Yes, once it's treated. Las Virgenes Municipal Water District imports 100% of its drinking water (chloraminated, moderately hard) and supplies recycled water for landscape; HOA features near purple-pipe irrigation fight nutrient runoff. We dechlorinate every refill and top-off and test the tap on the first visit.

    Why does my Calabasas pond turn green every summer?

    Heat, light and nutrients. Hot inland valley: upper 90s in summer, strong Santa Ana winds, cool winter nights. Depth and shade are non-negotiable for koi here. Add the local leaf and debris load (Oaks and sycamores along the creeks, eucalyptus and pine in the older tracts; fire-zone landscaping rules on most hillside lots) and an undersized filter can't keep up. UV clarification, shade and a maintenance schedule fix it.

    What's eating the fish in my pond?

    Coyotes, bobcats and raccoons from the Santa Monica Mountains; herons from Malibu Creek and the Calabasas Lake community lake; mountain lions documented in the open space. Depth of 3–4 ft, overhangs, fish caves and motion-activated deterrents are the fixes that actually work; netting is the last resort.

    How much does koi pond maintenance cost here?

    Monthly residential service is priced by pond volume, fish load and access, and quoted after a first visit. Most local homeowners land on a monthly plan with a spring clean-out; we'll tell you if your pond needs less.

    Do you build new koi ponds locally?

    Yes. Shale and sandstone hillsides with clay fill on the graded estate pads in The Oaks, Hidden Hills and Mountain View Estates. We plan the excavation and base around that, then design filtration, rockwork and planting for a fixed-scope quote.

    Pond or fountain in Calabasas?

    Schedule an on-site assessment. We'll test the water, check the equipment and tell you what it needs.

    Call Request assessment