How deep should a koi pond be?

• <div><p>A koi pond should be at least 5 feet deep to keep the fish healthy and ensure they don’t freeze in winter. Koi fish are also known for growing large, so the more room you have, the better. A larger <a href="https://www.angi.com/articles/koi-pond-sizes.htm">koi pond size</a> will allow the fish to grow bigger than a smaller one will, and the more fish you have, the bigger the pond you’ll need. Learn <a href="https://www.angi.com/articles/how-build-pond.htm">how to build a pond in your backyard</a> to ensure it remains functional and aesthetically pleasing for a long time.</p></div>

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Q: How much is pond maintenance?

• <div><p>One reason you may want to fill in your pond is the cost of maintenance. Pond cleaning may cost about $1,000 for an annual cleanup, or monthly visits may cost $75 to $100 per visit. If you don&rsquo;t want to spend that much per year on pond upkeep, you may consider filling in your pond.</p></div>

Q: What are the benefits of adding a water feature?

• <div><p>Water features enhance aesthetics, improve outdoor ambiance, and provide a soothing, tranquil atmosphere.</p></div>

Q: Do natural pools get algae?

• <div><p>Yes, natural pools can get algae since they use the same filtration processes as lakes or streams. However, you can reduce the risk of algae by adding more algae-fighting plants and not installing your natural swimming pool in direct sunlight, as it promotes algae growth.</p></div>

Q: What elements influence the cost of adding a fountain or waterfall?

• <div><p>Costs depend on design, materials, plumbing, labor, and optional lighting or filtration features.</p></div>

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Verified Reviews for Fountain Service pros in Montague, CA

*The Angi rating for Fountain Service companies in Montague, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Fountain Service needs.

*The HomeAdvisor rating for Fountain Service companies in Montague, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Fountain Service needs.

Last update on June 19, 2026

Reviewed in June 2026
They were very helpful in bringing my home design to a plan set. The process was quick and easy. They answered all my questions and responded to any issues or needs I had. Their fees are quite reasonable as well. I would recommend Evolution Drafting to anyone in need of this type of service.
Evolution Drafting
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Reviewed in May 2025
Great service with a quality job
CJT Roofing and Construction
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Reviewed in March 2025
I chose Titanium Roof Innovations Inc and I couldn’t be happier, Andre and Maykon did an amazing job, great communication throughout the entire process, clean, on time and got the work done beautifully.
TITANIUM ROOF INNOVATIONS INC
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Reviewed in September 2024
Everything went great!! Amado and his team exceeded our expectations! We highly recommend this company for your landscape needs, as they are reliable, honest, reasonable, caring, efficient, and professional! Also, they have vision of what a new landscaping project should look like and then...
Green Forest Landscape
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Reviewed in May 2024
Bob was very professional, and we are very pleased with the results!
Daystar Roof Renewal
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Reviewed in January 2024
This was an inspection of an historic building in order to assess what needed to be done to make the building usable again. The inspection was very thorough, very reasonably priced, and helped in the decision process regarding future restoration. We received a comprehensive written report that...
Next Level Home Inspections
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Reviewed in December 2023
I highly recommend this company. They worked fast also while making sure all my furniture was taken care of. I will definitely use them again in the future for any moves.
Platinum Movers LLC
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Reviewed in August 2022
They are great and excellent.
SVM Plumbing, Heating & Air
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Reviewed in July 2022
Very nice and understanding. Quick to respond.
Jennifer Allen
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Reviewed in July 2022
I would hire this company again.. Very thorough and helpful
Covering the Cape
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Fountains questions, answered by experts

One reason you may want to fill in your pond is the cost of maintenance. Pond cleaning may cost about $1,000 for an annual cleanup, or monthly visits may cost $75 to $100 per visit. If you don’t want to spend that much per year on pond upkeep, you may consider filling in your pond.

A koi pond should be at least 5 feet deep to keep the fish healthy and ensure they don’t freeze in winter. Koi fish are also known for growing large, so the more room you have, the better. A larger koi pond size will allow the fish to grow bigger than a smaller one will, and the more fish you have, the bigger the pond you’ll need. Learn how to build a pond in your backyard to ensure it remains functional and aesthetically pleasing for a long time.

Water features enhance aesthetics, improve outdoor ambiance, and provide a soothing, tranquil atmosphere.

Yes, natural pools can get algae since they use the same filtration processes as lakes or streams. However, you can reduce the risk of algae by adding more algae-fighting plants and not installing your natural swimming pool in direct sunlight, as it promotes algae growth.

Costs depend on design, materials, plumbing, labor, and optional lighting or filtration features.

The Montague, CA homeowners’ guide to fountain services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

Angi
•
May 3, 2026May 3, 2026
How Much Does It Cost to Install a Fountain in a Pond? [2026 Data]
Discover the cost to install a fountain in your pond, including average prices, key cost factors, and tips to save money on your pond fountain installation.
Angi
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Sep 16, 2026Sep 16, 2026
How Much Does Outdoor Water Fountain Installation Cost? [2026 Data]
Discover the average outdoor water fountain installation cost, including key price factors and tips to help you budget for your project.
Angi
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May 3, 2026May 3, 2026
How Much Does It Cost to Add a Waterfall to a Pool? [2026 Data]
Discover the cost to add a waterfall to a pool. Learn about average prices, cost factors, and ways to save on your pool waterfall installation.
Rachel Hoffman
•
May 2, 2026May 2, 2026
10 Outdoor Fountain Maintenance Tips to Keep Your Water Feature in Top Condition
Regular outdoor fountain maintenance will keep your water feature looking and working great. Follow these tips to learn how.
Rachel Hoffman
•
Jul 10, 2026Jul 10, 2026
24 Water Feature Ideas for Your Backyard
Outdoor water feature ideas are just as unique as your backyard itself. Check out how a waterfall, fountain, or koi pond can reimagine your property.
C.E. Larusso
•
Jul 9, 2026Jul 9, 2026
5 Water Feature Design Styles to Incorporate Into Your Home
Dive into the details of the different kinds of backyard water features, including fountains, birdbaths, waterfalls, pools, ponds, streams, and spouts.