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How much does gas water heater replacement (40–50 gallon tank) cost in South Dakota?

Updated September 2026 · South Dakota price index 0.88 for plumbing work (national = 1.00)

In South Dakota, a licensed plumber typically charges $440 to $2,700 to replace a 40–50 gallon gas tank water heater like for like, with most jobs landing near $1,300. That is about 12% below the national average of $500–$3,100, based on what plumbers earn in South Dakota.

Low end
$440
Most jobs
$1,300
High end
$2,700
Got a quote for this in South Dakota? Check if it's fair — free

AI-powered second opinion using these same South Dakota figures. No account, no card. Need someone to do the work? Verified pros in South Dakota took the Fair Price Pledge.

What a South Dakota quote means

Quote for this jobWhat it means
Under $264Suspiciously low — ask what is excluded, and check licensing and insurance
$264 – $2,970Fair price — inside the typical range (up to 10% over the top is still normal)
$2,970 – $4,725Running high — get the quote itemized, and get a second one
Over $4,725Ripoff territory — more than 1.75× the high end of the typical range

Same rules the QuoteJury checker uses on every quote.

What you're paying for

What is usually included: The new tank, removal and disposal of the old one, new supply connectors and gas flex, a drip pan and expansion tank where required, permit, and 2–4 hours of labor.

What moves the price:

Tank size, venting type (atmospheric vs power vent), local labor rate, permit, and whether the unit is a like-for-like swap or needs code upgrades (expansion tank, pan, gas flex, drip leg).

Gas water heater replacement (40–50 gallon tank) cost across South Dakota

Typical range by metro and rural area, from BLS wage data for plumbers in each area.

AreaTypical rangeMost jobs
Rapid City, SD$450 – $2,800$1,350
Sioux Falls, SD-MN$450 – $2,800$1,350
East South Dakota nonmetropolitan area$420 – $2,650$1,250
West South Dakota nonmetropolitan area$430 – $2,650$1,300

Frequently asked

Is $1,300 a fair price for gas water heater replacement (40–50 gallon tank) in South Dakota?

Yes. $1,300 is right around what most homeowners in South Dakota pay. Anything from $264 to $2,970 is inside the normal range for a licensed plumber; above $2,970 it is worth getting a second quote.

Why do quotes for the same job vary so much?

Code upgrades at replacement time: expansion tank, seismic straps, pan, venting corrections and a shutoff valve. Tank brand and warranty length (6-year versus 12-year models). Company overhead matters too: a large company with trucks, dispatchers and a warranty department charges more than a one-person shop, and both can be honest prices.

When should I get a second quote?

Any time a quote lands above $2,970, or when the contractor cannot break it into parts, labor and fees. Ask for the itemized version, ask what would change the price, and confirm licensing and insurance. You can also paste the quote into the free QuoteJury checker for an instant second opinion.

Other plumbing jobs in South Dakota

Gas water heater replacement (40–50 gallon tank) in other states

Sources

About these numbers. Ranges are typical market rates for a licensed, insured contractor, blended from published U.S. cost guides and adjusted with U.S. Bureau of Labor Statistics wage data (OEWS, May 2025) for each state and metro area. They are estimates, not a bid, appraisal or inspection. Real prices move with parts, access, permits and code requirements. The quote checker is AI-powered and labeled as such.