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How Much Does It Cost to Repair or Replace Your Water Heater?
By Matt Schmitz
September 17, 2025
The average lifespan of a water heater is somewhere in the neighborhood of 10 years, which seems like an eternity until that day comes when you suddenly find yourself mid-shower without hot water. Where does the time go? The deceptive nature of having too much time to plan for the worst has left you with soap in your eyes and chill down your spine, a malfunctioning or possibly kaput water heater — and no earthly idea of whether you need to repair it or replace it, nor what it’s gonna cost to do either.
This May Also Interest You: Hot Water Ran Out While You’re in the Shower? 5 Reasons You're Freezin’
Getting a precise answer to that question hinges on a number of variables that you literally can’t even with right now, and you’re not exactly in the position to make a bunch of phone calls to compare contractor quotes. Calm down and towel off. We’ve got you.
To help you get at least a ballpark idea of what you should expect to pay before you start calling around for estimates, HomeServe has calculated the average costs for water heater repair and replacement nationally and state by state for comparison. Remember, whomever you hire to come and address your issue will almost certainly charge you a fee just to come out and diagnose the problem, so we’ve calculated that average as well.
For a closer look at what factors into the price to replace your water heater, check out our state-by-state replacement cost guide. Likewise, for more specifics on repair prices, go to our state-by-state repair cost guide.
Repair and replacement costs vary depending on where you live. For comparison, the national average for diagnosis is $101, for repair is $359 and for replacement is $1,396. The good news? We're seeing prices that are, on the national level, lower than when we first reported this data in 2021. National average diagnosis fees are up just $2 in four years, while average repair and replacement costs are down 27% and 20% respectively.
But for our purposes here — to get you an immediate idea of the cold, hard cash you’ll have to drop in order to resume your warm, soothing shower — consult our quick reference guide below. There you’ll find what the average cost for water heater repair and replacement is in your state and how it compares to the national average.
All figures are based on aggregated HomeServe data reported by our network of thousands of contractors across the nation. Where insufficient data was available to determine a verifiable average, we’ve noted so. Also note that HomeServe water heater data should generally be assumed to refer to conventional “tanked” water heater models — the most common type — as opposed to tankless or “on-demand” models, which can cost roughly twice as much.
Water Heater Service Costs Nationwide
Diagnosis: $101
Repair: $359
Replace: $1,396
State-by-State Water Heater Service Costs
1. Alabama
Diagnosis: $111
Repair: $424
Replace: $1,084
2. Alaska
Diagnosis: Insufficient data
Repair: Insufficient data
Replace: Insufficient data
3. Arizona
Diagnosis: Insufficient data
Repair: Insufficient data
Replace: Insufficient data
4. Arkansas
Diagnosis: $109
Repair: $362
Replace: $1,248
5. California
Diagnosis: $107
Repair: $360
Replace: $1,300
6. Colorado
Diagnosis: $124
Repair: $334
Replace: $1,801
7. Connecticut
Diagnosis: $110
Repair: $361
Replace: $1,802
8. Delaware
Diagnosis: $92
Repair: $359
Replace: $1,457
9. District of Columbia
Diagnosis: $97
Repair: $439
Replace: $1,642
10. Florida
Diagnosis: $112
Repair: $506
Replace: $1,216
11. Georgia
Diagnosis: $104
Repair: $404
Replace: $1,361
12. Hawaii
Diagnosis: Insufficient data
Repair: Insufficient data
Replace: Insufficient data
13. Idaho
Diagnosis: Insufficient data
Repair: $215
Replace: $1,516
14. Illinois
Diagnosis: $91
Repair: $341
Replace: $1,541
15. Indiana
Diagnosis: $97
Repair: $362
Replace: $1,471
16. Iowa
Diagnosis: $85
Repair: $261
Replace: $1,520
17. Kansas
Diagnosis: $91
Repair: $279
Replace: $1,796
18. Kentucky
Diagnosis: $106
Repair: $354
Replace: $1,395
19. Louisiana
Diagnosis: $114
Repair: $334
Replace: $1,507
20. Maine
Diagnosis: Insufficient data
Repair: Insufficient data
Replace: Insufficient data
21. Maryland
Diagnosis: $99
Repair: $349
Replace: $1,594
22. Massachusetts
Diagnosis: $69
Repair: $439
Replace: $1,669
23. Michigan
Diagnosis: $92
Repair: $292
Replace: $1,299
24. Minnesota
Diagnosis: $111
Repair: $396
Replace: $1,732
25. Mississippi
Diagnosis: $96
Repair: $322
Replace: $1,537
26. Missouri
Diagnosis: $86
Repair: $304
Replace: $1,736
27. Montana
Diagnosis: $100
Repair: $400
Replace: $1,301
28. Nebraska
Diagnosis: $107
Repair: $369
Replace: $1,299
29. Nevada
Diagnosis: $85
Repair: $320
Replace: $1,515
30. New Hampshire
Diagnosis: Insufficient data
Repair: $468
Replace: $1,968
31. New Jersey
Diagnosis: $105
Repair: $351
Replace: $1,601
32. New Mexico
Diagnosis: $110
Repair: $396
Replace: $1,760
33. New York
Diagnosis: $95
Repair: $326
Replace: $1,670
34. North Carolina
Diagnosis: Insufficient Data
Repair: $380
Replace: $1,587
35. North Dakota
Diagnosis: $102
Repair: $288
Replace: $1,611
36. Ohio
Diagnosis: $104
Repair: $356
Replace: $1,384
37. Oklahoma
Diagnosis:
$104
Repair:
$356
Replace:
$1,444
38. Oregon
Diagnosis: $116
Repair: $424
Replace: $1,529
39. Pennsylvania
Diagnosis: $87
Repair: $374
Replace: $1,411
40. Rhode Island
Diagnosis: Insufficient data
Repair: Insufficient data
Replace: Insufficient data
41. South Carolina
Diagnosis: $101
Repair: $326
Replace: $1,770
42. South Dakota
Diagnosis: $112
Repair: $410
Replace: $1,272
43. Tennessee
Diagnosis: $101
Repair: $479
Replace: $1,387
44. Texas
Diagnosis: $95
Repair: $282
Replace: $1,613
45. Utah
Diagnosis: $124
Repair: $455
Replace: $1,537
46. Vermont
Diagnosis: Insufficient data
Repair:Insufficient data
Replace: Insufficient data
47. Virginia
Diagnosis: $102
Repair: $338
Replace: $1,533
48. Washington
Diagnosis: $104
Repair: $306
Replace: $1,797
49. West Virginia
Diagnosis: $90
Repair: $399
Replace: $1,226
50. Wisconsin
Diagnosis: $88
Repair: $363
Replace: $1,667
51. Wyoming
Diagnosis: Insufficient data
Repair: $317
Replace: $1,588
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