Basic
$1,578 – $3,946 each
Non-condensing whole-house gas tankless unit with stainless steel venting, isolation valves, gas connection, old tank removed
Photo: Behrat · CC BY-SA 3.0 · Source
How Much Does Gas Tankless Water Heater Cost in Charleston, South Carolina?
Install one whole-house natural gas tankless water heater including unit, venting, gas line connection and tank removal.
Gas Tankless Water Heater in Charleston, South Carolina typically costs $1,857 to $4,643 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Gas Tankless Water Heater in Charleston, South Carolina
$1,857 – $4,643
eachPrices in Charleston are 8.0% lower than the national average for gas tankless water heater.
National average: $2,000 – $5,000 each
What you get at each price level
Standard
$1,857 – $4,643 each
Condensing whole-house gas tankless unit with PVC venting, condensate neutralizer, isolation valve kit, old tank removed
Premium
$2,321 – $5,803 each
Condensing gas tankless unit with built-in recirculation pump and Wi-Fi control, PVC venting, neutralizer, isolation valves
Cost Breakdown in Charleston
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $864 – $2,160 | each |
| Labor | labor | $609 – $1,523 | each |
| Supplies & Other | supplies | $230 – $576 | each |
| Equipment & Disposal | equipment | $154 – $384 | each |
Prices adjusted for Charleston local market conditions.
Gas Tankless Water Heater photo examples
Two white wall-mounted gas tankless water heaters with pipe runs on a brick wall
Photo: Dinkun Chen · CC BY-SA 4.0 · Source
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Cost Factors in Charleston, South Carolina
What Affects Pricing
- Materials ($900.00-$2,250.00 per unit)
- Labor ($700.00-$1,750.00 per unit)
- Supplies & Other ($240.00-$600.00 per unit)
- Equipment & Disposal ($160.00-$400.00 per unit)
Local Price Adjustments
Material costs4.0% below avg
Labor costs13.0% below avg
Material costs in Charleston run proportionally higher than labor, which may favor labor-intensive approaches.
Frequently Asked Questions
References
- Water Heater Installation Cost - This Old House, This Old House, retrieved Nov 2026
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Charleston
Connect with local gas tankless water heater contractors in Charleston for personalized quotes based on your specific project.