Can't my AC handle humidity on its own?

Your AC removes some moisture, but during Roswell's most humid periods, especially near the river, it can't keep up while also cooling the house. A dehumidifier handles the excess moisture so your AC can focus on temperature — giving you both cool and dry air.

Where is a dehumidifier installed?

A whole-home dehumidifier typically installs near the air handler or in the ductwork — often in the basement, crawlspace, or utility area. It integrates with your existing HVAC system and treats all the air in your Roswell home as it circulates.

Will a dehumidifier prevent mold?

Keeping humidity at healthy levels is one of the most effective ways to prevent mold growth. A whole-home dehumidifier maintains moisture within a safe range throughout your Roswell home, making it much harder for mold to develop in problem areas.

How much does a dehumidifier cost to run?

Whole-home dehumidifiers are designed to be energy-efficient. Many Roswell homeowners find they actually reduce overall energy costs because the AC doesn't have to work as hard when it's not fighting excess humidity. The comfort improvement alone makes it worthwhile.

Do I need a dehumidifier year-round?

Humidity is mainly a concern in Roswell from spring through early fall, especially in summer months when river moisture is highest. Most homeowners use the dehumidifier during the warm, humid months and switch to a humidifier in winter when the heating system dries out the indoor air.

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Dehumidifiers in Roswell, GA

One Hour Heating & Air Conditioning® of North Atlanta

Dehumidifiers in Roswell, GA

A whole-home dehumidifier in Roswell tackles the excess moisture that makes your home feel sticky and promotes mold growth during Georgia's humid months. If your home feels clammy even with the AC running, or you've spotted condensation on windows and musty smells in closets, a dehumidifier addresses the root cause.

Why Summer Humidity Is a Problem in Roswell

Roswell's summers combine heat and humidity in a way that pushes residential AC systems to their limits. The city's proximity to the Chattahoochee River corridor means moisture levels are often higher than in other areas, especially in neighborhoods like Riverside and those near Vickery Creek. Your air conditioner removes some moisture as it cools, but during the most humid stretches, it can't pull enough moisture out of the air while also keeping the temperature down. The result is a home that's cool but still feels damp and uncomfortable. Crawlspaces and basements are especially vulnerable — they can develop standing moisture, musty odors, and mold when humidity goes unchecked.

How a Whole-Home Dehumidifier Solves the Problem

A whole-home dehumidifier installs in your HVAC system and removes excess moisture from the air as it circulates through the ductwork. It works alongside your air conditioner — handling the moisture so your AC can focus on cooling. This means your Roswell home reaches a comfortable temperature and humidity level faster, and the AC runs less. The system drains automatically, so there's no reservoir to empty like with a portable unit. A built-in humidistat lets you set your preferred moisture level, and the system maintains it throughout the house.

Signs Your Roswell Home Needs Humidity Control

If the house feels sticky or clammy even when the AC is running, that's the clearest sign. Condensation on windows, foggy glass, musty smells in closets or the basement, and visible mold in bathrooms or the crawlspace are all red flags. Warped wood, peeling paint, and a general feeling that the air is heavy all point to excess humidity. In Roswell, the combination of summer heat and river-influenced moisture means these problems are common — especially in older homes and homes with crawlspaces. A technician can measure your indoor humidity and recommend the right solution.

About Roswell

Roswell's scenic location along the Chattahoochee River is one of its greatest attractions, but the proximity to water also increases ambient humidity during warm months. Combined with Georgia's naturally high summer humidity, Roswell homeowners often find that air conditioning alone isn't enough to keep the indoor environment comfortable. Homes in Riverside and other neighborhoods near the river are especially susceptible to moisture challenges that a whole-home dehumidifier can prevent.

Serving Roswell and Surrounding Areas

Our dehumidifier service covers Roswell and surrounding communities including Milton, Alpharetta, Johns Creek, Sandy Springs, Dunwoody, and East Cobb. We serve homeowners throughout North Fulton County and the GA 400 corridor.

Call (404) 689-4168 to schedule service.

Visit our office:

One Hour Heating & Air Conditioning
1360 Union Hill Rd Ste 5F, Alpharetta, GA 30004
(404) 689-4168
Open 24 hours

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Helen Albanese

in the last week

We had central AC added to our home 5 years ago. We decided to get an AC and furnace tune up before the summer. Matt, the technician from One Hour Heating and Air, was on time and polite. He pointed out that our furnace filter had not been changed since 2022. Big oversight by me. Matt explained how the air flows through the furnace and the direction the filter needs to be placed. I marked with a sharpie on the furnace an arrow so I would remember next time. Good piece of mind. Positive experience.

Justin Low

a week ago

I cannot recommend this HVAC company enough. The technician showed up exactly on time and was patient throughout the entire visit. They took the time to answer every single one of my questions thoroughly, making sure I felt completely comfortable with the process. What I appreciated most was their honesty—they gave me several clearly explained options for both repairing my current unit and replacing it. Best of all, they were not pushy and never once tried to upsell me on things I didn't need. It is rare to find such genuine, reliable, and pressure-free service these days. A 5-star experience from start to finish.

Paul Yi

a week ago

Best HVAC team in King County. Professional, reliable, and honest. Alex, the owner, takes great care of his customers. Highly recommend.

Denis

a week ago

I was initially skeptical of working with a franchise, but I was really impressed by how professional, helpful, and punctual their technician, Matthew, was throughout the visit. Pricing was reasonable and I will definitely be going with them for any future HVAC needs.

Max B

a week ago

Really good experience with One Hour. Alex was super communicative from the first call, got us on the schedule quickly and kept us in the loop the whole time. Marklus came out and handled the repair. Technically solid and left everything cleaner than he found it. Never felt pressured to buy anything extra which was refreshing.

vivek savsani

2 weeks ago

We had our heating system stop working during the extreme snow storm, and this company responded quickly. Joe Bonness, who is an expert technician arrived on time, diagnosed the issue fast, and fixed it efficiently. He explained everything clearly and made sure the heat was working perfectly before leaving, even though it was late around midnight. We are very grateful for the quick and professional service during such freezing weather. Highly recommend their service!

Neha

a month ago

Huge thanks to my neighbor Chris for coming over late at night to fix my AC unit when it stopped working. I caught him and his family on the way out and told him my problem. He ended up leaving his plans early and took the time to figure it out and got it running again quickly. It meant a lot that he was willing to help out so late. He even gave me a few tips to look out for in case anything else happened. Super knowledgeable and a great neighbor to have! Give that guy a raise!!

Zaria Smith

a month ago

Tim was great. I can’t say enough good things. He came out to do a routine maintenance and unfortunately, I had to replace my furnace due to wear and tear. This happened on Friday, and he was at my house bright and early Monday to install the new furnace. He was pleasant the entire time, and very informative throughout. Thank you so much.

Sindel Garcia

a month ago

I will start by saying that KC was very professional explaining all aspects of the whole job that his team was going to do as far as to what we needed concerning a furnace rather we should repair or replace the existing furnace which by the way was 26 years old. Zo the service installer was quite thorough with the entire job, also Areej another technician did a spectacular job with cleaning all of the air ducts with detailing each step of the way up to and including the dryer vent as well a fantastic job was done. Although the job was extended one extra day was not a problem the problem came about when they informed us that they were going to return the next morning by 10am and by 11am we hadn't heard from them when a simple courtesy call with an eta would have gone a long way instead of me having to place a call to them. Overall the job was complete with a new furnace that was installed and the job was well done.p I would highly recommend One Hour Heating & Air Conditioning of Naperville.

Gerald Moody

a month ago

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