How Much Does It Cost to Build a Koi Pond?
Quick Answer A koi pond typically costs $500 to $3,000 for a small DIY build, or $3,500 to $17,000+ for a professionally installed pond, with the average mid-sized professional install landing around $7,500 to $15,000. Size, excavation difficulty, filtration quality, and whether you hire a professional are the biggest cost drivers — not just the