Basic
$4,167 – $8,334 each
Wall-hung condensing gas boiler around 90-95% AFUE with PVC venting, primary-secondary near-boiler piping, condensate drain
Replace a residential boiler with a 90-95%+ AFUE condensing gas boiler including PVC venting and near-boiler piping.
High Efficiency Gas Boiler in Portland, Maine typically costs $4,903 to $9,805 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Portland are 1.0% lower than the national average for high efficiency gas boiler.
National average: $5,000 – $10,000 each
$4,167 – $8,334 each
Wall-hung condensing gas boiler around 90-95% AFUE with PVC venting, primary-secondary near-boiler piping, condensate drain
$4,903 – $9,805 each
Condensing boiler around 95% AFUE with modulating burner, outdoor reset sensor, PVC venting, neutralizer, air separator
$6,128 – $12,256 each
Condensing boiler around 95%+ AFUE with wide-range modulation, outdoor reset, magnetic dirt separator, ECM circulators
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2,183 – $4,365 | each |
| Labor | labor | $1,750 – $3,500 | each |
| Supplies & Other | supplies | $582 – $1,164 | each |
| Equipment & Disposal | equipment | $388 – $776 | each |
Connect with local high efficiency gas boiler contractors in Portland for personalized quotes based on your specific project.