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Plumbing Cost Guides

Water heaters & fixtures. Reviewed planning information and transparent cost assumptions.

Professional plumber installing a tall water softener tank with salt brine tank and copper pipes in a residential garage

Water Softener Installation Cost in 2026: What You Will Pay

Water softener installation costs $1,500 on average in 2026, typically $800 to $3,000 for a salt-based system. See salt-based vs salt-free pricing, the sizing formula pros use, and why the same unit costs $1,152 via an installer or $6,500 via a dealer channel.

$800.00 – $3,000.00 per project

Reviewed 2026-10-13 · 22 sources cited

Trenchless sewer line replacement in progress with a technician feeding new HDPE pipe through an access pit in a suburban backyard

How Much Does It Cost to Replace a Sewer Line in 2026?

Sewer line replacement costs $5,000 on national typical in 2026, with most full lateral replacements landing between $3,300 and $8,000 and the full project band running $1,500 to $15,000. Trenchless CIPP lining runs $4,000 to $12,000 and pipe bursting $4,000 to $15,000, while open-trench digging costs $3,000 to $20,000 before surface restoration that often doubles the final bill.

$1,500.00 – $15,000.00 per project

Reviewed 2026-10-12 · 22 sources cited

New wall-mounted tankless water heater with copper piping and gas line in a clean utility room

Tankless Water Heater Installation Cost in 2026: Prices by Fuel Type and Scenario

Tankless water heater installation costs $2,800 on national average, typically $1,400 to $5,600 for a whole-house unit plus professional installation. Gas models cost more to install than electric; the gas line upsizing and new venting are what most quotes hide.

$1,400.00 – $5,600.00 per project

Reviewed 2026-10-12 · 14 sources cited

New concrete septic tank being set into an excavated pit by an excavator in a residential backyard

Septic Tank Installation Cost in 2026: What You'll Pay

Septic system installation costs about $10,000 on national average, with most projects landing between $6,800 and $15,000. Conventional gravity systems run $4,000 to $10,000 installed; engineered systems average about $15,000 and reach $25,000 with difficult site prep.

$3,000.00 – $50,000.00 per project

Reviewed 2026-10-10 · 22 sources cited

Sump pump installed in a basement pit with discharge pipe

How Much Does Sump Pump Installation Cost in 2026?

Sump pump installation costs $1,200 on national average in 2026, with most projects between $800 and $1,500. A simple pump replacement in an existing pit runs $400 to $700; a brand-new system costs $7,000 to $12,000. Compare pump types, sizes by horsepower, and battery backup add-ons.

$450.00 – $4,000.00 per project

Reviewed 2026-10-21 · 22 sources cited

New tank water heater installed in a utility closet with copper piping

How Much Does It Cost to Install a Water Heater in 2026?

How much does water heater installation cost? $600 to $3,100 for a standard tank, $1,400 to $5,600 for tankless in 2026. Gas-to-tankless conversions top the range; the 20-year math is what decides tank vs tankless.

$600.00 – $3,100.00 per project

Reviewed 2026-10-19 · 14 sources cited