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BOILERS

Boiler Replacement Cost Calculator

Estimate the cost of a boiler replacement by type, size, labor and zone valves.

JOB INPUTS

Enter your numbers

Loading saved values

Boiler type

Boiler type

Capacity in BTU

Capacity in BTU

Install hours

h
Install hours

Remove the old boiler

Remove the old boiler

Number of zone valves

Number of zone valves

Include permits

Include permits
Results update automatically
CALCULATED RESULTUSD
Estimated total cost$8,980.00
Boiler$6,500.00
Labor$980.00
Old unit removal$500.00
Zone valves$600.00
Permits$400.00
FORMULA USED$6,500.00 × size + labor + removal + valves + permits = $8,980.00

HOW TO USE IT

How to use the Boiler Replacement Cost Calculator

  1. 1

    Choose the type (standard, high efficiency or condensing).

  2. 2

    Select the boiler size.

  3. 3

    Set labor hours, old-unit removal and zone valves.

  4. 4

    Review the total cost and line-item breakdown.

THE MATH

Boiler replacement cost formula

Total = boiler × size + labor + removal + valves + permits

A high-efficiency boiler runs ~$6,500, condensing ~$8,500, standard ~$4,500. Size adds 0-25%. Labor runs ~$70/hr. Each zone valve ~$300.

PRACTICAL EXAMPLE

High-efficiency boiler, medium size, 14 hrs, 2 valves, removal included

Boiler = $6,500. Labor = 14 × $70 = $980. Removal = $500. Valves = 2 × $300 = $600. Permits = $400. Total ≈ $8,980.

FAQ

Frequently asked questions

How much does a boiler replacement cost in 2026?

Nationally, $5,000-$12,000 installed depending on type; condensing is the most common.

Do I need new zone valves?

Often yes on a replacement; each valve adds $250-$350.

What is the difference between standard and condensing?

Condensing is more efficient (95%+) and slightly pricier, but lowers the gas bill.