4 reports. Useful first pass, but one outlier can still shift the range.
Boiler Installation Cost in Connecticut
Read what 4 homeowners actually wroteIn Connecticut, boiler installation costs typically range from $5,300 to $15,000, with most homeowners paying around $10,500. Half of the installations tracked fell between $8,075 and $12,750, providing a sense of what mid-range projects look like in the state.
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Shaded band: middle 50% of reports (25th–75th percentile). Median tick in teal.
Most jobs land between $5,855.00 and $14,550.00 (5th–95th percentile). Ignoring 1 outlier below and 1 above.
Based on reports from Apr 2026 (first entries this month).
Data last updated Apr 7, 2026.
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The underlying prices behind this page.
Replaced the boiler this past September for 9k, finally able to take hot showers without them turning cold after a few minutes.
Got one of two boilers replaced by East River Energy for around.
Real homeowner write-ups, locked.
"Got quoted 15k for a boiler replacement in a 950 sq ft home."
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Related in HVAC: HVAC System Replacement, AC Repair, Heat Pump Installation, Mini Split AC Installation.