Right Away Heating and Air Right Away Heating and Air Dries the Whole House
American Standard air handler with a float switch and sealed ducts.
Whole Home Dehumidifier Installation Near You for Sticky Rooms, Musty Smells and Humidity Your AC Can't Keep Up With
Right Away Heating and Air Dries the Whole House
Updated November 2026
Right Away Heating and Air handles whole home dehumidifier installation near you when your AC can't keep humidity under control. A whole home dehumidifier ties into your ductwork and pulls water out of the air in every room, without making the house colder.
We install whole-home dehumidifiers in Ladson, SC and across the Charleston area.
Whole home dehumidifiers typically run $1,500-$3,500+ installed, and crawl space dehumidifiers $1,400-$2,800+. We test first so you only buy one if you need one. Ask about 0% financing for 12 months on approved credit. Call 843-996-8904.
- American Standard Customer Care Dealer
- SC License CLM.119013
- 20+ Years Lowcountry HVAC
- Humidity Testing
- 0% Financing for 12 Months
Editor view: the real Duda form sits in its own block and moves here on Preview and the live site.
$50 off any repair is applied to your ticket automatically.
Ladson, SC 29456
Do You Need a Whole Home Dehumidifier?
Check These Signs
You may need a whole home dehumidifier if your indoor humidity stays above 55 to 60 percent, rooms feel clammy at normal temperatures, or you smell mustiness and see condensation even after the AC and ducts check out.
| Sign | Why It Points to Humidity |
|---|---|
| Hygrometer reads over 60 percent | Too much moisture for comfort and health |
| Clammy at 72 to 74 degrees | Moisture makes air feel warmer |
| Musty smell in closets | Mold and mildew growing |
| Condensation on windows or vents | Humid air hitting cool surfaces |
| Cupping wood floors | Moisture in the floor |
| Allergies worse indoors | Dust mites and mold thrive above 50 percent |
Why Doesn't My AC Remove Enough Humidity?
Your AC may not remove enough humidity because it's oversized, dirty, set with the fan ON, or simply not running much in spring and fall when it's humid but not hot.
- Oversized AC: short runs, little drying.
- Fan ON: re-evaporates water off the coil.
- Dirty coil: less contact with the air.
- Mild humid days: the AC barely runs.
Check These Signs Written prices, $50 off any repair and free second opinions.
Whole Home Dehumidifier vs Portable Dehumidifiers
One System, Every Room
A whole home dehumidifier treats every room through your ductwork, drains itself and runs quietly in the attic or crawl space. Portable units only treat one room and need their buckets emptied.
| Feature | Whole Home Dehumidifier | Portable Dehumidifier |
|---|---|---|
| Coverage | Whole house through ducts | One room |
| Draining | Permanent drain line | Bucket or hose |
| Noise | Out of sight in the attic or crawl space | In the room |
| Capacity | 70 to 130+ pints a day | 20 to 50 pints a day |
| Price | $1,500-$3,500+ installed | $200-$400+ each |
One System, Every Room Written prices, $50 off any repair and free second opinions.
How Much Does a Whole Home Dehumidifier Cost Near You?
$1,500-$3,500+ Installed
A whole home dehumidifier near you typically costs $1,500-$3,500+ installed. Capacity, ductwork changes, drain routing and controls move the price.
| Dehumidifier Project | Typical Lowcountry Price Range |
|---|---|
| Humidity test and inspection | Included with service call |
| Whole home ducted dehumidifier | $1,500-$3,500+ |
| Crawl space dehumidifier | $1,400-$2,800+ |
| Dehumidifier with dedicated ducting | $2,500-$3,500+ |
| Dehumidifier repair | Priced in writing after diagnosis |
Prices are typical Lowcountry ranges for planning. Your written estimate is the final word.
Does a Dehumidifier Raise My Power Bill?
A whole home dehumidifier adds some power use, but it often lets you set the thermostat a couple of degrees higher and stay comfortable, which offsets much of the cost.
- Drier air feels cooler at the same temperature.
- The AC can run less on mild, humid days.
- High-efficiency units use much less power than portables.
$1,500-$3,500+ Installed Written prices, $50 off any repair and free second opinions.
Fix These First Before Adding a Dehumidifier
Source Before Equipment
Before adding a dehumidifier, fix the moisture sources. A dehumidifier fighting a wet crawl space or leaky ducts runs nonstop and never wins.
- Set the fan to AUTO.
- Clean the AC coil and check the charge.
- Seal leaky ducts , especially returns.
- Dry the crawl space.(Note for build: link to /crawl-space-encapsulation/.)
- Then add a dehumidifier if humidity is still high.
Source Before Equipment Written prices, $50 off any repair and free second opinions.
How We Install a Whole Home Dehumidifier
Usually Half a Day
A whole home dehumidifier install from Right Away Heating and Air usually takes half a day to a day.
- Test humidity and size the unit.
- Pick the location in the attic, crawl space or closet.
- Tie into the return and supply ducts.
- Run a drain line with a safety switch.
- Wire the humidity control.
- Test and set the target humidity.
Usually Half a Day Written prices, $50 off any repair and free second opinions.
Where Right Away Heating and Air Provides Whole home dehumidifier installation
Close to Home
Right Away Heating and Air handles whole home dehumidifier installation for 20 Lowcountry communities, all served from one office at 9565 William Aiken Ave, Suite 104, in Ladson.
Right Away Heating and Air in Ladson, SC
Right Away Heating and Air in Ladson, SC is where every whole home dehumidifier installation call starts. Our techs stock the vans here each morning, a few minutes from I-26 and US-78.
Where We Handle Whole home dehumidifier installation
| County | Towns |
|---|---|
| Dorchester | Summerville |
| Berkeley | Goose Creek, Hanahan, Moncks Corner, Daniel Island |
| Charleston | North Charleston, West Ashley, Mount Pleasant, James Island, Johns Island, Sullivan's Island, Isle of Palms, Kiawah Island, Seabrook Island, Edisto Island, Awendaw, Hollywood, Ravenel, Meggett, Yonges Island |
Close to Home Written prices, $50 off any repair and free second opinions.
Frequently Asked Questions About Whole Home Dehumidifiers
Quick Answers
What Humidity Should I Set My Dehumidifier To?
Most homes do best at 45 to 50 percent.
How Long Do Whole Home Dehumidifiers Last?
Usually 10 to 15 years with filter changes.
Do Dehumidifiers Need Maintenance?
Yes. Change or clean the filter and check the drain at each tune-up.
Can a Dehumidifier Stop Mold?
It helps by keeping humidity below the level mold needs, but active mold should be cleaned up.
Where Does the Water Go?
Into a drain line that runs outside or to a condensate pump.
Do You Offer Financing?
Yes, 0% for 12 months on approved credit.
Reviewed by Blake Miller, Owner, Right Away Heating and Air
Book a Humidity Test Near You With Right Away Heating and Air
Feel the Difference
Right Away Heating and Air will test your humidity and recommend the right fix. Call 843-996-8904.
9565 William Aiken Ave, Suite 104, Ladson, SC 29456
