Water Heater Replacement Cost in Missouri

$760 – $2,100We estimate water heater replacement in Missouri at $760 to $2,100 for a 40 to 50 gallon gas or electric tank in the same location. The national estimate is $750 to $2,050. Missouri plumber pay is 5% above the national median, ranking 20 of 51.

Part of the job	Low	High
Parts and materials (our assumption)	$600	$1,500
Labor hours (our assumption)	2	4
Billed labor rate per hour	$80	$144
Estimated total	$760	$2,100

Our estimate, not a quote. Billed rate is the Missouri median wage from BLS (2025, $32.11 an hour) times 2.5 to 4.5 to cover payroll costs, overhead, travel and profit. How we estimate

What our assumptions are based on

Item	Sourced figure	Basis	Source
Labor hours	1 – 3	1 to 3 hours for a standard tank installation.	This Old House

What other publishers report

National figures as published by each source, checked 2026-11-03. Their scope can differ from ours.
Publisher	Low	High	Scope
Fixr	$550	$2,300	40-gallon tank installed. Page dated January 2026.
Fixr	$700	$2,500	50-gallon tank installed. Page dated January 2026.
This Old House	$600	$1,200	40-gallon tank installed. Page dated June 2026.
This Old House	$700	$1,800	50-gallon tank installed. Page dated June 2026.

Cities in Missouri

Metro area	Median wage	Low	High
St. Louis	$37.02	$790	$2,150

Compared with neighboring states

State	Median wage	Low	High
Arkansas	$23.39	$720	$1,900
Illinois	$48.05	$840	$2,350
Iowa	$30.72	$750	$2,050
Kansas	$31.36	$760	$2,050
Kentucky	$30.84	$750	$2,050
Nebraska	$29.31	$750	$2,050
Oklahoma	$27.87	$740	$2,000
Tennessee	$28.17	$740	$2,000

Other plumber jobs in Missouri

Water Heater Replacement cost in every state · Missouri home repair guide

Sources

U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics

General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.