Basic
$1,225 – $3,267 per project
Tankless heater matched to the existing fuel, sized for 2-3 fixtures at once, standard efficiency, vent and power hooked up as required, isolation valves

Supply and install a whole-home tankless water heater (gas or electric) including labor, venting/electrical hookup and permit; gas-line or panel upgrades extra.
Install Tankless Hot Water Heater in Des Moines, Iowa typically costs $1,442 to $3,844 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Des Moines are 3.0% lower than the national average for install tankless hot water heater.
National average: $1,500 – $4,000 per project
$1,225 – $3,267 per project
Tankless heater matched to the existing fuel, sized for 2-3 fixtures at once, standard efficiency, vent and power hooked up as required, isolation valves
$1,442 – $3,844 per project
Tankless heater matched to the existing fuel, sized for 2-3 fixtures at once, higher-efficiency model with digital display, isolation valve kit
$1,802 – $4,805 per project
Tankless heater matched to the existing fuel, sized for 2-3 fixtures at once, top-efficiency model with Wi-Fi control, recirculation-ready, isolation valve kit
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $635 – $1,692 | job |
| Labor | labor | $525 – $1,400 | job |
| Supplies & Other | supplies | $169 – $451 | job |
| Equipment & Disposal | equipment | $113 – $301 | job |
Two wall-mounted gas tankless water heaters piped with expansion tanks on a plywood wall
Photo: Behrat · CC BY-SA 3.0 · Source
Find a pro to do thisTankless water heater mounted on the exterior wall of a house
Photo: radical.librarian · CC BY 2.0 · Source
Find a pro to do thisWall-mounted electric tankless water heater with piping on a pink tiled bathroom wall
Photo: DryPot · CC BY-SA 3.0 · Source
Find a pro to do thisLabor costs in Des Moines run proportionally higher than materials, which may favor material-heavy solutions.
BuildX Pro researches and reviews the national price range for Install Tankless Hot Water Heater, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Nov 2026.
Connect with local install tankless hot water heater contractors in Des Moines for personalized quotes based on your specific project.