Cost guide
What a water heater replacement costs in Hays
This is the plumbing purchase most households make with no warning and no time to research. Here are real ranges for the Hays area so you are not deciding blind on the day yours quits.
- Standard tank: $1,500 – $2,800 installed
- Tankless: $3,800 – $6,500 installed
- Includes removal and haul-away
- Updated for 2026 Ellis County pricing
Typical ranges
What it runs in the Hays area
These are planning ranges for Hays and Ellis County, inclusive of labor and mid-grade materials.
40–50 gal electric tank
Like-for-like swap in an accessible location. Includes new connections, drain pan and haul-away.
$1,500 – $2,400
40–50 gal gas tank
Same swap with venting checked and corrected. Gas units cost slightly more but run cheaper per month here.
$1,700 – $2,800
75 gal or high-recovery tank
Larger households or long fixture runs. Heavier unit, sometimes an electrical or gas line upgrade.
$2,600 – $4,200
Tankless (gas)
New venting, gas line sizing and often a condensate drain. Higher upfront, longer service life.
$3,800 – $6,500
Difficult installs
Tight attic or crawlspace, undersized gas line, venting that no longer meets code, or a location change.
Add $400 – $1,500
Ranges are estimates for planning only and are not a quote or an offer. Your firm price is confirmed on site.
Detail
What pushes the number up
Venting
If the old unit was vented in a way current code no longer allows, that gets corrected. Common in older Hays homes.
Gas line sizing
Tankless units demand more gas than a tank. An undersized line has to be upsized, which is real labor.
Location and access
A heater in a tight attic or crawlspace costs more to remove and set than one standing in an open basement.
Expansion tank
Required on many closed systems. Modest part, but it belongs in the quote rather than appearing later.
Electrical
Some tankless and high-recovery electric units need a dedicated circuit or a panel that can carry it.
Water quality
With water this hard, we sometimes recommend a softener or scale filter to protect the new unit. Optional, but we will explain the math.
The honest answer
Is tankless worth it here?
It costs roughly double. Whether that pays back depends on you more than on the unit.
Tankless makes sense if you plan to stay in the house ten or more years, you run out of hot water with a tank, or you want the space back. It makes less sense if you are moving soon, or if annual descaling is not something you will actually keep up with — and in Ellis County water, skipping descaling shortens a tankless life considerably. We install both and have no preference beyond what fits the household. Ask us and we will tell you which we would put in our own house given your water and your timeline.
Common questions
What homeowners ask us
How much does it cost to replace a water heater in Hays, KS?
Most standard tank replacements in Hays run $1,500 to $2,800 installed, including removal and haul-away. Tankless runs $3,800 to $6,500 because of venting and gas line work.
Is it cheaper to repair or replace?
Under about eight years old with a repairable fault, repair. Ten-plus years, rusty hot water, or a leak at the tank seam means replace — a leaking tank cannot be repaired.
Does the price include hauling the old one away?
Yes. Our ranges include removal and disposal of the old unit, new connections and a drain pan where one is needed.
Why is tankless so much more?
The unit costs more, but most of the difference is labor: new venting, gas line sizing, and sometimes a condensate drain and electrical work.
How long does the install take?
A straightforward tank swap is usually a few hours. Tankless is typically most of a day because of the venting and gas work.
Free estimate
Get a real number for your home
Ranges are useful for planning. For an actual price, tell us what you have and we will give you a firm number.
Related: water heater service, tankless vs. tank, how long they last, hard water, emergency plumber
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