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Water Heater Replacement Cost in St. Louis, MO
Detailed pricing guide with local market adjustments and material comparisons
St. Louis Average
$1,380–$4,600
Market Tier
Large City
Cost Breakdown
Water Heater Replacement Cost in St. Louis
Large CityLowAverageHigh
$1,380$2,990$4,600
Market Tier
Large City (1.15x)
Large city with competitive market and moderate-high costs
Material Cost Comparison
Water heater unit(Budget)
$1,035–$3,450Expansion tank(Mid-Range)
$1,380–$4,600Water flex lines(Premium)
$1,932–$6,440Factors that affect your cost
- Tank vs tankless
- Gas vs electric
- Tank size (40-80 gallon)
- Venting modifications
- Code upgrades required
- Permit fees
Get Quotes in St. Louis
Right Now Plumbing
Saint Louis, MO
(314) 965-0433Lemay Plumbing, Inc.
Saint Louis, MO
(314) 544-1066
Pipe Solutions
Saint Louis, MO
(636) 856-8989Tony LaMartina Plumbing Co. Inc
Saint Louis, MO
(314) 965-9377Founding Member
Premium spot in St. Louis
Ambassador
Lead the St. Louis community
Founding Member
Premium spot in St. Louis
St. Louis Housing Market
Median Household Income
$55,279
Median Home Value
$185,100
Median Rent
$978/mo
Homeownership Rate
45.4%
Population
293,109
Median Year Built
1938
Source: U.S. Census Bureau, ACS 2023 5-Year Estimates
Track Your Costs
Replacement
Water Heater Replacement
Date
April 2026
Cost
$2,990
Vendor
Your local pro
Warranty
10-year material warranty
St. Louis average: $1,380–$4,600
Before
Issue documented with photos
After
Repair completed, area sealed
Materials Used
Water heater unitExpansion tankWater flex linesGas connector
Warranty Details
10-year material warranty
Auto-Checkup Created
"Water Heater Inspection" — every 12 months
Added by youApril 2026
Property Health Score
Good
86
plumbing category +15 pts(71 → 86)
Documentation19/25
Maintenance20/25
Warranty22/25
Investment21/25
Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.
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Smith & Sons
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4.9(47)
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J&R Home Services
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Category:plumber
Date:2026-04-09
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Cost FAQ
What is the average cost of water heater replacement in St. Louis?
The average cost of water heater replacement in St. Louis, MO ranges from $1,380 to $4,600. The final price depends on Tank vs tankless, Gas vs electric, Tank size (40-80 gallon).
What factors affect water heater replacement cost?
Key factors include: Tank vs tankless, Gas vs electric, Tank size (40-80 gallon), Venting modifications, Code upgrades required, Permit fees. In St. Louis, local labor rates and material availability also influence pricing.
How do I get accurate quotes for water heater replacement in St. Louis?
Get at least 3 quotes from licensed professionals in St. Louis. Use Fizbo SmartSearch to find and compare local plumbers, read reviews, and request estimates — all in one place.