Pond Construction in the Bay Area, CA

Typically, ponds take between 4 days to 3 weeks to build. Most projects average about 1 to 1.5 weeks.

We excavate the average pond to about 3.5 feet deep. After installing the underlayment, liner, and cobblestone, the finished pond depth is closer to 3 feet. This depth helps protect your pond and fish from predators like raccoons.

Several factors determine an ideal pond location:

• Partial Sunlight: Around 4-6 hours of sunlight daily is best. It helps aquatic plants thrive and reduces algae growth.
• Minimal Overhead Foliage: Falling leaves and debris can cloud your pond and create sludge. Although a skimmer removes most debris, it's best to minimize leaf fall.
• Access to Power and Water: Your pond must have electricity nearby. Water access is also beneficial, especially with an auto-fill feature to maintain the water level consistently.
• Access to Power and Water: Your pond must have electricity nearby. Water access is also beneficial, especially with an auto-fill feature to maintain the water level consistently.
• Visibility and Aesthetics: Ideally, you want your pond visible from key areas, kitchen windows, patios, or decks so you can fully enjoy its beauty.

We're unique because we build both ponds and pools, which gives us expertise with liners and concrete. However, we only build ponds using liners. Concrete ponds must be built like swimming pools (with excavation, steel reinforcement, gunite, and surfacing) to prevent cracking, making them significantly more expensive. Liner ponds are simpler, reliable, and don't have these issues.

No. Mosquitoes lay eggs in stagnant water, but your pond's water is constantly circulating, preventing mosquito breeding. You can also easily introduce mosquito fish into your pond for extra protection.

Not at all! You'll typically just empty your skimmer basket once or twice a week and add a scoop of beneficial bacteria weekly. Depending on your yard's foliage, you might empty the skimmer basket slightly more often. For your convenience, we also offer professional pond maintenance services.

The most important step is regularly adding beneficial bacteria. For extra protection, you can use an IonGen G2 System, which releases copper ions to reduce algae, or an auto-doser, which automatically adds beneficial bacteria. Additional treatments, such as algaecides, can be used as needed. Planting shade-providing and aquatic plants also helps limit algae growth.

You can safely have about one inch of fish per square foot of surface area in your pond. The surface area of a pond is calculated by multiplying the length and width of the pond at its surface (Surface Area = Length × Width).
The average adult koi fish is typically about 20 to 24 inches long, although they can grow even larger, up to 30 inches or more, depending on genetics, pond size, diet, and water quality.

For planning purposes, using 24 inches as an average length per adult koi is safe and common. For example, if you have four adult koi, each averaging about 24 inches, you'd calculate pond surface area this way:

• 4 koi × 24 inches per koi = 96 square feet of pond surface area needed.

This calculation ensures your koi have ample space, promoting good health and reducing stress.

Yes. Ponds naturally attract friendly wildlife like dragonflies, frogs, and salamanders. They can also attract predators such as cranes, herons, and raccoons. We build ponds deep enough to protect your fish from raccoons and offer additional safety measures like fish caves and predator deterrent sprinklers for bird issues.

The Nitrogen Cycle is a natural process every pond experiences:

1. Fish produce waste, creating ammonia.
2. Beneficial bacteria convert ammonia into nitrite.
3. Bacteria then convert nitrite into nitrate.
4. Aquatic plants absorb nitrates as fertilizer, completing the cycle.

We recommend an annual pond cleanout. Cleanouts are performed from November to February, when fish are most dormant. The leading cause of fish death is stress, and moving fish from the pond to the on-site container is typically much easier, and we see much less fish loss during these months. Regular cleanouts are essential to remove sludge at the bottom of the pond, which can create harmful anaerobic bacteria that can kill your fish.

Yes, your pond must run 24/7 to keep beneficial bacteria and fish healthy. Fish can survive short periods (a day or two) without water circulation, but bacteria cannot. Turning your pond off for more than a few hours risks killing the beneficial bacteria and disrupting your pond's ecosystem balance.

We use only real, natural rock. Real rock blends beautifully into your landscape, lasts longer, requires no maintenance, and naturally encourages beneficial bacteria growth. It's also naturally strong and doesn't require artificial reinforcement, ensuring your pond or waterfall stays beautiful for years.

Not at all. The only significant water loss is from evaporation, unless there's an unusual issue like a leak. In fact, a pond or pondless waterfall typically uses less water than a similarly sized grass area, because the water continuously recirculates.