Dehumidifier prices range from $150 to $700 for most household models, depending on capacity and features

A small portable dehumidifier for a single room costs $150 to $300. A mid-size unit that handles 1,500 to 2,000 square feet runs $300 to $500. Whole-house dehumidifiers that integrate with your HVAC system cost $500 to $700 or more, plus installation labor. The price you pay depends on how much moisture the unit removes per day, measured in pints, and whether it has extras like automatic shutoff or a built-in pump.

Dehumidifiers with higher pint ratings—meaning they pull more water from the air—cost more. A 30-pint unit (good for damp basements) costs less than a 50-pint or 70-pint model (good for very wet spaces or larger homes). Energy efficiency also affects price: units with an Energy Star label use less electricity but may cost $50 to $100 more upfront.

Key Takeaways

  • Small portable dehumidifiers for single rooms start at $150 to $300 and work for spaces up to 500 square feet.
  • Mid-size units rated for 1,500 to 2,000 square feet cost $300 to $500 and are the most common choice for basements and damp bedrooms.
  • Whole-house dehumidifiers cost $500 to $700 plus installation labor, which can add $500 to $1,500 depending on your HVAC setup.
  • Higher pint ratings (50-pint and above) cost more but remove moisture faster in very wet spaces.
  • Energy Star models cost more upfront but lower your electric bill over time if you run the unit frequently.

Small portable dehumidifiers: $150 to $300

Portable units in the 20 to 30-pint range cost $150 to $300 and work best in bedrooms, closets, or small bathrooms. These are the lightest and easiest to move between rooms. They have a water tank you empty by hand, usually holding 1 to 2 gallons before it shuts off automatically. Most come with a basic digital display and a timer.

At this price point, you get reliable moisture removal for spaces under 500 square feet. Brands like Frigidaire, Eva-Dry, and hOmeLabs sell models in this range. The trade-off is that you will empty the tank frequently if the room is very damp—sometimes daily in a flooded basement. If you want to avoid emptying, you can buy a gravity drain kit for $20 to $40 that lets water flow into a floor drain or sump pump.

Mid-size portable dehumidifiers: $300 to $500

Units rated 40 to 50 pints cost $300 to $500 and handle 1,500 to 2,000 square feet. These are the most common choice for basements and large damp rooms. They are heavier than small units—typically 50 to 70 pounds—so they stay in one place. Most have a built-in pump or a drain hose connection, which means you do not have to empty a tank by hand.

At this price, you get better controls: humidity sensors that turn the unit on and off automatically, adjustable fan speeds, and washable filters. Brands like Aprilaire, Ivation, and Waykar sell popular models here. If your basement floods seasonally, a mid-size unit with a pump pays for itself in convenience. The pump pushes water uphill to a window or outdoor drain, so you can run the unit unattended for days.

Large portable dehumidifiers: $400 to $600

Units rated 60 to 70 pints cost $400 to $600 and work for very wet spaces or whole basements over 2,500 square feet. These are industrial-grade machines that weigh 80 to 100 pounds and are meant to stay in one spot. They pull water faster than mid-size units and often have a built-in pump as standard.

At this price, you are paying for speed and durability. These units run longer without overheating and handle continuous moisture better. They are common in basements with active water problems, crawl spaces, and commercial settings. If your basement stays damp year-round, a large unit removes moisture faster and uses less total energy than running a smaller unit constantly.

Whole-house dehumidifiers: $500 to $1,500 installed

Whole-house units that connect to your HVAC system cost $500 to $700 for the equipment alone. Installation labor adds $500 to $1,500 depending on whether your system already has ductwork and whether the installer needs to modify your furnace or air handler. Total installed cost is usually $1,000 to $2,200.

These units work differently from portable models: they dry air as it moves through your ducts, so every room gets drier air at once. You do not empty tanks or move machines. They are best for homes where humidity is a problem everywhere—not just the basement. Brands like Aprilaire, Honeywell, and Lennox make whole-house models. If you are already replacing your HVAC system, adding a dehumidifier to the order costs less than installing one later.

Factors that change the price you pay

Pint rating is the biggest price driver. Each 10-pint increase in capacity costs roughly $50 to $100 more. A 30-pint unit costs less than a 50-pint unit from the same brand.

Drainage method affects price. Units with a built-in pump cost $50 to $150 more than models with manual tanks or gravity drains. If you have a sump pump or floor drain nearby, a gravity drain kit is cheaper than a built-in pump.

Energy efficiency adds cost upfront. Energy Star dehumidifiers use 15 to 20 percent less electricity than standard models but cost $50 to $100 more. If you run the unit 8 hours a day or more, the lower electric bill pays back the extra cost in 1 to 2 years.

Brand reputation matters. Frigidaire, Aprilaire, and Ivation are established brands with good warranty coverage and parts availability. Generic brands on Amazon or Walmart cost $30 to $80 less but may have shorter warranties or harder-to-find replacement parts.

Features like humidity sensors, app control, or quiet operation add $50 to $200. A basic model with a timer and manual controls is cheaper than one with a smart thermostat or whisper-quiet compressor.

What to expect for running costs

A small 30-pint dehumidifier uses about 300 to 400 watts and costs $0.30 to $0.50 per day to run 8 hours, depending on your local electric rate. A mid-size 50-pint unit uses 600 to 700 watts and costs $0.60 to $0.85 per day for the same runtime. Over a damp season (May through September), expect $50 to $150 in electric bills for a portable unit.

Whole-house dehumidifiers use more power but run less often because they dry air continuously. Your total electric cost depends on how long your heating and cooling season is and how much your utility charges per kilowatt-hour. Ask your local utility for your rate, usually listed on your bill as cents per kWh.

Where to buy and what warranty to expect

Portable dehumidifiers are sold at Amazon, Home Depot, Lowe's, and Walmart. Prices are similar across retailers, but shipping costs vary—Amazon often offers free shipping on larger units, while in-store pickup at Home Depot or Lowe's saves on delivery fees. Whole-house units are usually ordered through HVAC contractors, who handle installation and warranty service.

Most portable dehumidifiers come with a 1-year manufacturer warranty covering defects in the compressor and motor. Some brands like Aprilaire offer 5-year warranties on whole-house models. Extended warranties are sold separately for $30 to $80 but are rarely worth the cost if the unit is under $500.

Frequently Asked Questions

Is a dehumidifier cheaper than fixing a moisture problem another way?

A dehumidifier is usually the cheapest short-term fix. Sealing cracks, installing a sump pump, or improving ventilation costs $500 to $5,000 but solves the problem permanently. A dehumidifier costs less upfront but runs forever. If moisture is from poor drainage or a leak, fix the source first; a dehumidifier alone will not stop mold or structural damage.

Should I buy a used dehumidifier to save money?

Used units are risky. The compressor is the most expensive part to replace, and you cannot tell if it is worn out until you run the unit. A used dehumidifier might cost $50 to $100 less, but if the compressor fails in six months, you have spent that savings on a repair. Buy new if you can; the warranty is worth the extra cost.

Do I need a dehumidifier if I have air conditioning?

Air conditioning removes some moisture, but not enough in very damp spaces. A basement or crawl space stays damp even with AC running because AC cools the air but does not remove moisture as efficiently as a dehumidifier. If your basement feels clammy or smells musty, a dehumidifier will help even if you have AC.

What size dehumidifier do I actually need?

Measure your room in square feet and check the humidity level with a cheap hygrometer ($10 to $20). Rooms under 500 square feet need a 20 to 30-pint unit. Rooms 500 to 1,500 square feet need 30 to 50 pints. Rooms over 1,500 square feet or very wet spaces need 50 pints or more. If you are unsure, buy a mid-size unit; it handles most basements and damp rooms.

Can I return a dehumidifier if it does not work for my space?

Most retailers allow returns within 30 days if the unit is unused or in original condition. Amazon, Home Depot, and Lowe's all accept returns. If you buy and the unit is too small or too large for your space, you can exchange it for a different size. Keep the receipt and original packaging.