How Much Does It Cost To Install A Central Humidifier?


Discover the costs in your city
Get your job done in 3 easy steps
1 finds the best top-rated contractors in your area
Contractors give you free customized estimates
Compare estimates & hire the contractor that will best fit your needs

Central Humidifier Costs

Indoor Cost Guides      Air-Conditioning & Heating (HVAC)      Central Humidifier Costs

When a home lacks moisture, some homeowners choose to invest in a portable humidifier to attempt to resolve the problem. However, some issues are too big for a portable device. In that situation, whole-home humidifiers can be installed into the HVAC system or furnace unit. Central humidifier installation has a number of cost factors, including whether it is being retrofitted or installed with a new system, how big of a unit you need, and how accessible the installation space is.

A central humidifier will help keep the home at less than 50% humidity, which the EPA suggests is better for health. Installing a central humidifier will not only make your home more comfortable, but it could also make it healthier. There are different types of humidifiers available and each has its own costs.

Central humidifier installation: for a 1,500 home, 10-gallon humidifier.

Item Unit Cost Quantity Line Cost
Flow-through humidifier $200-$300 each 1 $200-$300
Labor Cost $65 per hour 4-5 $260-$325
Total Cost $460-$625 each 1 $460-$625


Central humidifier installation: by type.

Item Cost
Drum humidifier $150-$250
Flow-Through humidifier $200-$300
Steam humidifier $400-$1,000


Other considerations and costs

  • If you have your humidifier installed with a new furnace or HVAC unit, you may be able to save money on labor costs or other charges by having more than one service performed by the same provider.
  • The exact cost of your humidifier will depend on the size that you need. Based on your square footage, the installation professional will recommend the appropriate size. The bigger your unit, the more expensive it will be.
  • Certain units will only work with certain types of furnaces or systems. Make sure that you get an in-home estimate to find out what your options are based on the system that you have.
  • This system will need routine maintenance, including cleaning and adding water on a regular basis. You should also add hiring a professional HVAC service to perform maintenance at least once a year to your household budget.

DIY considerations

  • You can’t install a central humidifier on your own unless you are a certified HVAC professional. This project requires hooking into the HVAC system and there are a lot of technical elements involved.


  • Craftsman Estimator Costbook, complete series year 2019.
  • Latest prices found on Home Depot and other vendor Web sites.
  • Literature review of DIY Web sites.
How much does it cost to install a central humidifier in your city?
Enter your zip code to get estimates

Cost by city

  • New York, NY$867
  • Bronx, NY$713
  • Brooklyn, NY$594
  • Philadelphia, PA$741
  • Washington, DC$643
  • Atlanta, GA$582
  • Miami, FL$529
  • Fort Lauderdale, FL$554
  • Minneapolis, MN$650
  • Chicago, IL$758
  • Houston, TX$782
  • San Antonio, TX$525
  • Austin, TX$594
  • Denver, CO$502
  • Phoenix, AZ$530
  • Las Vegas, NV$581
  • Los Angeles, CA$655
  • San Diego, CA$594
  • San Jose, CA$718
  • Seattle, WA$525

Local costs have been calculated by accounting for labor and material cost differences across different cities. To get accurate cost estimates, indicate yours: