Whole-house fans can help reduce your electric bills by providing ventilation and cool, fresh air. Use this whole house fan cost guide to price out the project.
How Much Does a Whole-House Dehumidifier Cost? [2026 Data]
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Cost Insights:
Whole-house dehumidifier installation costs between $1,300 and $2,800, based on your home size and ductwork.
Your unit’s capacity and efficiency rating shape humidity control and your monthly energy use, especially in damp climates.
You should budget for internal pumps ($150 to $500), electrical work, permits, and removal of your old dehumidifier.
Hiring a local HVAC company ensures proper ductwork connections, correct wiring, and protects your home from moisture damage.
In 2026, the national average cost to install a whole-house dehumidifier is $1,500. Most homeowners spend between $1,300 and $2,800, with the spread driven by home size, ductwork complexity, and the unit's capacity and efficiency rating. Budgeting for extras like internal pumps, electrical work, and permits will help you plan for the full project cost.
How Much Does a Whole-House Dehumidifier Cost by Type?
Dehumidifier costs range from $800 for a basic basement unit to $7,000 for a two-stage air conditioner that also dehumidifies the whole home. The table below compares average costs across three dehumidifier types, along with a description of each one:
| Type | Average Cost in 2026 | Description |
|---|---|---|
| Whole-house dehumidifier | $1,100 to $2,500 | Attaches to the return ductwork of your existing HVAC system; available in multiple sizes and power ratings |
| Basement unit | $800–$2,000 | Dehumidifies the basement only; helps prevent mold, mildew, and water damage |
| Two-stage air conditioner | $5,000 to $7,000 | Combines an air conditioner and a dehumidifier to treat the entire home; the highest-cost option because it also provides cooling |
Whole-House Dehumidifier Cost Factors: What Determines the Price?
Lowering the humidity in your home helps prevent mold growth and reduce dust, and several key factors shape what you'll pay for a whole-house dehumidifier. The breakdown below covers the cost variables that matter most.
Capacity
Capacity measures how much moisture a dehumidifier removes from the air each day, and it’s one of the primary drivers of unit cost. Lower-capacity models start at around 60 pints per day, while higher-capacity units can remove more than 150 pints per day. As capacity increases, so does the price you can expect to pay.
Efficiency
A dehumidifier's efficiency rating reflects how much energy the unit consumes per pint of moisture removed. Higher-efficiency models cost more upfront but use less energy per pint, which can meaningfully reduce your monthly energy bills over time.
Internal Pump
Installing a dehumidifier below grade, such as in a basement or underground space, typically requires an internal pump to move moisture up and out of the home, adding $150 to $500 to your installation cost.
Location in the Home
The installation location within your home directly affects what you pay, since hard-to-reach spaces require more time to work in and drive up labor costs. An easy-to-access spot like a clean garage will cost noticeably less than a cramped or obstructed area.
Labor
Labor to install a whole-house dehumidifier runs $500 to $700, covering assembly, fastening, connecting the inlet and outlet supply to your central air system, and adding the appropriate wiring. That cost should also include mounting and configuring the humidity controllers that govern your home's settings. If you need additional supplies such as mounting hardware and fasteners, budget an extra $20 to $25.
Permits
Installing a new electrical circuit and wiring for your dehumidifier may require a permit, with fees ranging from $50 to $200 depending on your municipality.
Geographic Location
Where you live affects your total dehumidifier cost, with labor rates in high-cost cities running noticeably higher than those in rural or lower-cost regions. The table below shows how whole-house dehumidifier costs vary in different cities across the U.S.:
| Location | Average Cost Without Labor in 2026 | Average Cost With Labor in 2026 |
|---|---|---|
| Los Angeles, CA | $1,700–$2,000 | $2,800–$3,400 |
| Dallas, TX | $1,600–$1,900 | $2,500–$3,000 |
| Nashville, TN | $1,600–$1,900 | $2,600–$3,000 |
| New York, NY | $1,800–$2,100 | $3,200–$3,800 |
| Cheyenne, WY | $1,600–$1,900 | $2,600–$3,200 |
| Newark, NJ | $1,700–$2,000 | $3,000–$3,600 |
| Juneau, AK | $1,700–$2,100 | $3,200–$3,800 |
Whole-House Dehumidifier Additional Costs: What to Budget For
Beyond the unit and standard installation, several additional expenses can affect your total budget for a whole-house dehumidifier.
Air duct installation: $1,000–$2,700
Electrical work: $50–$100 per hour
External drainage pump: $125
Removing old dehumidifier: $35–$40
HVAC disconnect during installation: $90–$115
Monthly energy cost: $15–$25 per month
DIY vs. Hiring a Pro
Unless you have professional expertise in electrical and HVAC work, installing a whole-house dehumidifier yourself is not recommended since it's a fairly complex project. Improper installation can lead to very costly damage down the line.
The cost to hire a local HVAC company to install a whole-house dehumidifier (including the cost of labor) can range from around $2,000 to upwards of $3,500. However, if you decide to take on the project yourself, you can skip labor costs altogether. Instead, you'll only pay for the dehumidifier and any tools needed to install it.
How Angi Gets Its Cost Data
Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.
Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.
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