Basic
$341 – $1,023 each
Bypass evaporative humidifier on the furnace plenum with bypass duct, manual humidistat, water line and drain
Supply and install one whole-house humidifier (bypass or fan-powered) on an existing furnace, including water line and humidistat.
Built In Humidifier in Baltimore, Maryland typically costs $401 to $1,203 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 built in humidifier.
National average: $400 – $1,200 each
$341 – $1,023 each
Bypass evaporative humidifier on the furnace plenum with bypass duct, manual humidistat, water line and drain
$401 – $1,203 each
Larger-capacity bypass humidifier with automatic digital humidistat and outdoor temperature sensor, water line and drain
$501 – $1,504 each
Fan-powered evaporative humidifier with digital automatic control and outdoor sensor, no bypass duct needed, wired to the furnace
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $184 – $551 | each |
| Labor | labor | $136 – $407 | each |
| Supplies & Other | supplies | $49 – $147 | each |
| Equipment & Disposal | equipment | $33 – $98 | each |
Material costs in Baltimore run proportionally higher than labor, which may favor labor-intensive approaches.
Connect with local built in humidifier contractors in Baltimore for personalized quotes based on your specific project.