Water Heater Installation Cost in Illinois

Water heater installation costs in Illinois typically range from $1,400 to $7,500, with most homeowners paying around $1,705 according to recent project data. Half of all installations fall between $1,650 and $1,975.

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Price distribution

Median $1,705.00 · typical $1,650.00–$1,975.00

$1,705.00

$1,400.00

$7,500.00

Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.

Most jobs land between $1,460.00 and $5,910.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.

Based on reports from Apr 2026 (first entries this month).

Data freshness: 7 reports in the last 90 days. Help keep this current →

Data last updated Apr 7, 2026.

Latest reports

The underlying prices behind this page.

7 total reports

$7,500.00

Peoria, IL · 7 days ago

They quoted me for a water heater replacement in an 800 sq ft house, but the technician wasn't even HVAC qualified.

$1,400.00

Elgin, IL · 8 days ago

My plumber quoted me to replace my leaking water heater same day due to an emergency with no hot water and no heat.

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Naperville, IL · 8 days ago

"Got a new American Standard 50 gallon 40k btu water heater installed."

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