Plumbing Costs — NailThePrice

Install a Water Heater

National avg: $1,800 ($900–$3,500)

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Repipe a House

National avg: $7,500 ($4,000–$15,000)

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Install a Sump Pump

National avg: $1,100 ($500–$2,500)

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Install a Water Softener

National avg: $1,500 ($800–$3,000)

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Replace a Toilet

National avg: $450 ($200–$800)

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Install a Garbage Disposal

National avg: $350 ($150–$600)

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Fix a Slab Leak

National avg: $3,500 ($1,500–$6,000)

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Add a Bathroom

National avg: $25,000 ($12,000–$50,000)

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Install a Water Filtration System

National avg: $2,000 ($800–$4,000)

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Unclog a Main Sewer Line

National avg: $450 ($150–$800)

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Replace a Kitchen Faucet

National avg: $300 ($150–$550)

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Install a Tankless Water Heater

National avg: $3,200 ($1,500–$5,500)

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Install a French Drain

National avg: $5,000 ($2,000–$10,000)

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Waterproof a Basement

National avg: $5,500 ($2,000–$12,000)

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Last updated: April 14, 2026