Cost and Cautions of Installing a Whole House Dehumidifier

Installing a whole-house dehumidifier can be a smart move, especially in humid climates, but it comes with both costs and cautions. This article will tell you the general cost of installing a whole house dehumidifier and when you need a whole house dehumidifier.

 

Cost of Installing a Whole House Dehumidifier

1. Unit Price

Standard Units: $1,000 – $2,500

High-Capacity or Smart Models: $2,500 – $5,000+

If you want to lower the whole house dehumidifier cost, please contact us before buying.

2. Installation Costs

HVAC Integration (Most Common): $500 – $2,000

Standalone Installation (with ductwork or custom setup): $1,000 – $3,000+

Electrician Fees (if new circuits needed): $150 – $500

 

Total Estimated Cost:

$1,500 – $6,500 depending on home size, system type, and complexity.

 

Considerations of Using a Whole House Dehumidifier

1. Proper Sizing is Crucial

Undersized units won't dehumidify effectively.

Oversized units cycle too quickly, leading to inefficient moisture removal and possible equipment wear.

Tip: A professional should calculate based on square footage, local climate, and moisture load (e.g., number of people, cooking, showers, etc.).

 

2. Drainage Requirements

Whole-house units need continuous drainage—usually into a floor drain, sump pump, or condensate pump.

Improper drainage = water damage risk.

 

3. Ductwork and HVAC Integration

If integrated into your HVAC system, airflow design must be correct to prevent static pressure issues, poor airflow, or uneven humidity.

Modifications may be needed to return/supply ducts.

 

4. Energy Consumption

Home dehumidification systems are more efficient per pint of water removed than portables, but they still draw power.

Look for ENERGY STAR certified models to reduce long-term costs.

 

5. Maintenance

Regular filter changes, coil cleanings, and drainage inspections are required.

Neglect can lead to mold growth in the unit or ducts.

 

6. Noise Considerations

Some models can be noisy if installed near living areas or without duct buffering.

 

When a Whole House Dehumidifier is Worth It

Your entire home feels damp or has musty odors.

Mold or mildew is recurring.

Your HVAC struggles with summer humidity.

You're in a humid region (e.g., Southeastern U.S.).

You want better air quality and comfort year-round.