Basic
$341 – $852 each
Bypass flow-through pad humidifier on the plenum with bypass duct, water line with shutoff, drain line, manual humidistat
Install a bypass or flow-through whole-house humidifier on an existing furnace, with water line, drain, humidistat and wiring.
Furnace Humidifier in Baltimore, Maryland typically costs $401 to $1,003 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Baltimore are in line with the national average for furnace humidifier.
National average: $400 – $1,000 each
$341 – $852 each
Bypass flow-through pad humidifier on the plenum with bypass duct, water line with shutoff, drain line, manual humidistat
$401 – $1,003 each
Bypass flow-through humidifier with bypass damper, water line with shutoff, drain, automatic humidistat with outdoor sensor
$501 – $1,253 each
Fan-powered flow-through humidifier for higher output, water line with shutoff, drain, digital humidistat with outdoor sensor
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $184 – $460 | each |
| Labor | labor | $136 – $340 | each |
| Supplies & Other | supplies | $49 – $122 | each |
| Equipment & Disposal | equipment | $33 – $81 | each |
Material costs in Baltimore run proportionally higher than labor, which may favor labor-intensive approaches.
Connect with local furnace humidifier contractors in Baltimore for personalized quotes based on your specific project.