Basic
$3,946 – $7,892 each
Wall-hung condensing gas boiler around 90-95% AFUE with PVC venting, primary-secondary near-boiler piping, condensate drain
How Much Does High Efficiency Gas Boiler Cost in Charleston, South Carolina?
Replace a residential boiler with a 90-95%+ AFUE condensing gas boiler including PVC venting and near-boiler piping.
High Efficiency Gas Boiler in Charleston, South Carolina typically costs $4,643 to $9,285 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
High Efficiency Gas Boiler in Charleston, South Carolina
$4,643 – $9,285
eachPrices in Charleston are 8.0% lower than the national average for high efficiency gas boiler.
National average: $5,000 – $10,000 each
What you get at each price level
Standard
$4,643 – $9,285 each
Condensing boiler around 95% AFUE with modulating burner, outdoor reset sensor, PVC venting, neutralizer, air separator
Premium
$5,803 – $11,606 each
Condensing boiler around 95%+ AFUE with wide-range modulation, outdoor reset, magnetic dirt separator, ECM circulators
Cost Breakdown in Charleston
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2,160 – $4,320 | each |
| Labor | labor | $1,523 – $3,045 | each |
| Supplies & Other | supplies | $576 – $1,152 | each |
| Equipment & Disposal | equipment | $384 – $768 | each |
Prices adjusted for Charleston local market conditions.
Cost Factors in Charleston, South Carolina
What Affects Pricing
- Materials ($2,250.00-$4,500.00 per unit)
- Labor ($1,750.00-$3,500.00 per unit)
- Supplies & Other ($600.00-$1,200.00 per unit)
- Equipment & Disposal ($400.00-$800.00 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
- Condensing Boiler Cost Calculator, hvaccalc.org, retrieved Nov 2026
- Boiler Installation Cost & Replacement Guide | Carrier, Carrier, 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 high efficiency gas boiler contractors in Charleston for personalized quotes based on your specific project.