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.



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.

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 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
- Koi pond construction (koi pond installation, fish pond building, water gardens)
- Pond and water feature design
- Waterfall and stream construction and pondless waterfalls
- Garden and courtyard fountains
- Pond renovation and rebuilds
Scheduled care
- Monthly koi pond maintenance (pond service, pond upkeep)
- Pond cleaning and spring clean-outs
- Algae and string-algae control
- Koi transport, boarding and rehoming
Repair and water loss
- Pond repair: pumps, filters, liners, plumbing, electrical
- Leak detection for ponds, fountains and waterfalls losing water
- Resealing and relining (polyurea, EPDM, concrete)
- Waterfall repair
Commercial water feature services in Calabasas
Property types
- HOAs & Community Associations
- Hotels, Resorts & Casinos
- Apartment & Multifamily Communities
- Golf Courses & Country Clubs
- Office Parks, Retail & Business Centers
- Municipal Parks & Public Spaces
- Cemeteries & Memorial Parks
- Restaurants & Hospitality
Lake and large-feature programs
- Lake and large pond management: aeration, water quality, floating fountains
- Algae and aquatic weed control with licensed applicators
- Shoreline stabilization and erosion repair
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.






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...
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.



