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Find Central humidifier installers and replacers in Dunwoody

Avatar for Guardian Heating, Air, Plumbing & Electrical

Guardian Heating, Air, Plumbing & Electrical

5.00(
15
)
Approved Pro

Guardian Heating, Air, Plumbing & Electrical

5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

30+ Years of Experience! Voted Best HVAC Company 4 years in a row in Atlanta!. Free Service Call Fees with Repairs over $250! Meet or Beat your in hand HVAC Estimate! At Guardian Home Experts, we are committed to each and every customer by offering one solution to your home service needs. With over 30 years of experience, the company was built on providing reasonable and affordable prices, expert technicians, and practices that respect the customer. Our customer's time, money and needs, are placed at top priority . Guardian's solutions are always delivered with honest and upfront practices. At Guardian, we "Save the day with expert service," and guarantee your satisfaction stopping at nothing making sure your service is worthy of a positive review and your referrals. At Guardian- Quality Work, Quick Service at an Exceptional Value is Guaranteed!

"Excellent."

Ike P on November 2023

30+ Years of Experience! Voted Best HVAC Company 4 years in a row in Atlanta!. Free Service Call Fees with Repairs over $250! Meet or Beat your in hand HVAC Estimate! At Guardian Home Experts, we are committed to each and every customer by offering one solution to your home service needs. With over 30 years of experience, the company was built on providing reasonable and affordable prices, expert technicians, and practices that respect the customer. Our customer's time, money and needs, are placed at top priority . Guardian's solutions are always delivered with honest and upfront practices. At Guardian, we "Save the day with expert service," and guarantee your satisfaction stopping at nothing making sure your service is worthy of a positive review and your referrals. At Guardian- Quality Work, Quick Service at an Exceptional Value is Guaranteed!

"Excellent."

Ike P on November 2023


Avatar for The People's Champ

The People's Champ

4.96(
26
)
Approved Pro

The People's Champ

4.96(
26
)
Approved Pro
Customers say: Quick response
46 local quotes requested
4 years of experience

The Peoples Champ Heating & Air, LLC The Peoples Champ Heating & Air is a trusted HVAC contractor providing residential and light commercial heating, ventilation, and air conditioning (HVAC) services. With over 15 years of professional experience, our company delivers reliable, efficient, and high-quality solutions in installation, service, repair, sales, and maintenance of HVAC systems. Our experience spans both private sector work with homeowners and public sector projects supporting various local, county, and state government departments. We pride ourselves on providing energy-efficient, cost-effective climate control solutions that enhance comfort, sustainability, and operational efficiency.

"Wow!!! I cannot say enough about the professionalism of this company. I received a call in 5-10 mins of my request by Kevin and a few hours later Andre was here. Both high quality individuals. I am so very impressed. The work is scheduled to be done soon. Iâ  ll update my experience at the end but I wanted to write a review today because I am very happy with my experience."

Sharon G on January 2024

The Peoples Champ Heating & Air, LLC The Peoples Champ Heating & Air is a trusted HVAC contractor providing residential and light commercial heating, ventilation, and air conditioning (HVAC) services. With over 15 years of professional experience, our company delivers reliable, efficient, and high-quality solutions in installation, service, repair, sales, and maintenance of HVAC systems. Our experience spans both private sector work with homeowners and public sector projects supporting various local, county, and state government departments. We pride ourselves on providing energy-efficient, cost-effective climate control solutions that enhance comfort, sustainability, and operational efficiency.

"Wow!!! I cannot say enough about the professionalism of this company. I received a call in 5-10 mins of my request by Kevin and a few hours later Andre was here. Both high quality individuals. I am so very impressed. The work is scheduled to be done soon. Iâ  ll update my experience at the end but I wanted to write a review today because I am very happy with my experience."

Sharon G on January 2024


Avatar for Ace & A Heating & Air Conditioning of DeKalb

Ace & A Heating & Air Conditioning of DeKalb

4.74(
85
)
Approved Pro

Ace & A Heating & Air Conditioning of DeKalb

4.74(
85
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
44 local quotes requested

Ace & A is a family owned & operated full service heating and air conditioning company with top expertise in sales, service and installation that has been serving the greater Atlanta area since 1975. Ace & A offers "true" 24 hour emergency service where you can reach a customer service representative anytime day or night. Ace & A offers free estimates on HVAC replacement equipment and also specializes in high efficiency replacements and upgrades. Ace & A ensures that all service technicians undergo extensive factory training each year giving them the utmost qualification to properly diagnose problems, repair units, and perform new equipment installations. Due to our extensive training and satisfied customers through the years we have been able to maintain an accredited A+ rating with the Better Business Bureau (BBB). Our company strives to achieve zero complaints, but being in the service industry, we occasionally face this obstacle at some point or another. When we receive a complaint, the Ace & A team will do everything possible to make the situation right and the customer happy. Most importantly our goal is striving to provide the very best customer service in order to gain confidence and trust in Ace & A one customer at a time. Award winning. Additional contact name - Richard Coggins. Additional DBA - Ace & A Heating & Air Cond.

"Ace and A is super reliable, completely honest, and fairly priced. They only fix what needs to be fixed without exaggerating non-existent problems. They have been taking care of my HVAC needs for over ten years and I never want anyone else to look after my furnace and AC."

Diane B on September 2025

Ace & A is a family owned & operated full service heating and air conditioning company with top expertise in sales, service and installation that has been serving the greater Atlanta area since 1975. Ace & A offers "true" 24 hour emergency service where you can reach a customer service representative anytime day or night. Ace & A offers free estimates on HVAC replacement equipment and also specializes in high efficiency replacements and upgrades. Ace & A ensures that all service technicians undergo extensive factory training each year giving them the utmost qualification to properly diagnose problems, repair units, and perform new equipment installations. Due to our extensive training and satisfied customers through the years we have been able to maintain an accredited A+ rating with the Better Business Bureau (BBB). Our company strives to achieve zero complaints, but being in the service industry, we occasionally face this obstacle at some point or another. When we receive a complaint, the Ace & A team will do everything possible to make the situation right and the customer happy. Most importantly our goal is striving to provide the very best customer service in order to gain confidence and trust in Ace & A one customer at a time. Award winning. Additional contact name - Richard Coggins. Additional DBA - Ace & A Heating & Air Cond.

"Ace and A is super reliable, completely honest, and fairly priced. They only fix what needs to be fixed without exaggerating non-existent problems. They have been taking care of my HVAC needs for over ten years and I never want anyone else to look after my furnace and AC."

Diane B on September 2025


Avatar for AIRTITE

AIRTITE

5.00(
5
)
Approved Pro

AIRTITE

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

AIRTITE Performance HVAC is providing homeowners with expert HVAC solutions through the highest quality services and experience in the industry. This includes HVAC system design, installation, repairs, and maintenance, performance testing, and more. Here at AIRTITE, we believe in Testing, not Guessing! The Proof is in the Performance. AIRTITE is owner-operated with over 10 years of experience in the industry. AIRTITE was established to help bridge the gap between homeowners/builders, their HVAC systems, and their health. As the name suggests, AIRTITE provides performance solutions for new more "air-tight" homes; however, these same solutions can be used to find and resolve issues in older, leakier homes. Here at AIRTITE, we know Performance: Let us get to know you, today!

"This was the 3rd time that Fisher helped us out with the HVAC issue (on different properties). Again, job well done and he demonstrated the professionalism, care to details, patience with customer and honesty on the cost. Fisher, we appreciate that we have you as our our HVAC go-to expert."

James H on May 2025

AIRTITE Performance HVAC is providing homeowners with expert HVAC solutions through the highest quality services and experience in the industry. This includes HVAC system design, installation, repairs, and maintenance, performance testing, and more. Here at AIRTITE, we believe in Testing, not Guessing! The Proof is in the Performance. AIRTITE is owner-operated with over 10 years of experience in the industry. AIRTITE was established to help bridge the gap between homeowners/builders, their HVAC systems, and their health. As the name suggests, AIRTITE provides performance solutions for new more "air-tight" homes; however, these same solutions can be used to find and resolve issues in older, leakier homes. Here at AIRTITE, we know Performance: Let us get to know you, today!

"This was the 3rd time that Fisher helped us out with the HVAC issue (on different properties). Again, job well done and he demonstrated the professionalism, care to details, patience with customer and honesty on the cost. Fisher, we appreciate that we have you as our our HVAC go-to expert."

James H on May 2025


Avatar for Coolray Heating & Air Conditioning

Coolray Heating & Air Conditioning

4.82(
1,233
)
Approved Pro

Coolray Heating & Air Conditioning

4.82(
1,233
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
44 local quotes requested

Coolray has served the Atlanta metro area since 1966 and offers professional heating, air conditioning, plumbing and electrical. We base our business principles on people helping people with honest, dependable service backed by our peace of mind warranties and guarantees ensuring your 100% satisfaction. 350 employees. No subs. Charges a flat rate. Senior Discount on Service Repairs only, cannot be used with other offers.

"Great service! Stan was prompt, professional, friendly and very knowledgable."

Randy M on December 2025

Coolray has served the Atlanta metro area since 1966 and offers professional heating, air conditioning, plumbing and electrical. We base our business principles on people helping people with honest, dependable service backed by our peace of mind warranties and guarantees ensuring your 100% satisfaction. 350 employees. No subs. Charges a flat rate. Senior Discount on Service Repairs only, cannot be used with other offers.

"Great service! Stan was prompt, professional, friendly and very knowledgable."

Randy M on December 2025


Avatar for R Wiley Heating & Air

R Wiley Heating & Air

4.72(
994
)
Approved Pro

R Wiley Heating & Air

4.72(
994
)
Approved Pro
Customers say: Super punctual
142 local quotes requested
39 years of experience

Super Service Award Winner for 2024-2013 | HVAC Contractor | Owner Operated by Robby Wiley | We are a local Heating and Air Conditioning company in the metro Atlanta and surrounding areas. We offer FREE ESTIMATES on installations only and financing options including 18 months same as cash on all equipment and 60 months same as cash for certain equipment. We provide services to residential and small commercial customers. I have been in the industry for 30 years and enjoy helping my customers maintain their equipment and overcome issues with their equipment. I will work with you and offer recommendations based on your needs. I will make myself available to answer questions you may have without requiring a service call, again I enjoy what I do.

"Good."

Brent L on April 2025

Super Service Award Winner for 2024-2013 | HVAC Contractor | Owner Operated by Robby Wiley | We are a local Heating and Air Conditioning company in the metro Atlanta and surrounding areas. We offer FREE ESTIMATES on installations only and financing options including 18 months same as cash on all equipment and 60 months same as cash for certain equipment. We provide services to residential and small commercial customers. I have been in the industry for 30 years and enjoy helping my customers maintain their equipment and overcome issues with their equipment. I will work with you and offer recommendations based on your needs. I will make myself available to answer questions you may have without requiring a service call, again I enjoy what I do.

"Good."

Brent L on April 2025


Avatar for McCoy & Son Heating And Cooling

McCoy & Son Heating And Cooling

5.00(
1
)
Approved Pro

McCoy & Son Heating And Cooling

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

At McCoy & Son Heating and Cooling we pride ourselves on being the best HVAC company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"Excellent company full of good and honest people! Twice my AC has went out and they have been there and had the problem resolved within hours. Best customer service and prices around! I would highly recommend this company to anyone and you won’t be disappointed!"

Danielle S on June 2023

At McCoy & Son Heating and Cooling we pride ourselves on being the best HVAC company in the area. We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

"Excellent company full of good and honest people! Twice my AC has went out and they have been there and had the problem resolved within hours. Best customer service and prices around! I would highly recommend this company to anyone and you won’t be disappointed!"

Danielle S on June 2023


Avatar for Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

4.78(
87
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

4.78(
87
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
399 local quotes requested

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Good job. Will hire again"

GV I on December 2025

At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company

"Good job. Will hire again"

GV I on December 2025


Avatar for Triad Mechanical Company Inc

Triad Mechanical Company Inc

4.86(
180
)
Approved Pro

Triad Mechanical Company Inc

4.86(
180
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
89 local quotes requested

While many heating and air companies have come and gone, we have maintained an impeccable reputation since 1991, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. This family-owned and -operated HVAC service has responded promptly to calls in the Greater Metro Atlanta area for more than 20 years, offering the best value from certified technicians. While many heating and air companies have come and gone, we have maintained an impeccable reputation, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. Additional Counties Served: Oglethorpe, Walton, Gwinnett, Rockdale, & Portions of Dekalb, & Fulton. Additional phone - (770) 400-9084.

"No findings, no solution, no explanation… collected the fee… the issue is still there. I had Triad Mechanical Company for our HVAC issue that the outdoor unit is not running. I told Paul, the assigned technician, that we had tried resetting the power to the outdoor unit but that only brought the unit back on running for a few days before it stopped running again. I asked Paul’s help diagnose the issue for the root cause. However, when I came to the property just a few minutes later than Paul, he told me that he had done his work already, well, by simply resetting the power to the unit! (although I told him that we already tried that but it didn’t work!)… He didn’t have the patience to explain to me what diagnosis he had done (within that a few minutes) and he didn’t even bother to come off his truck to show me but saying “go ask your tenant”. He collected the fee and left. I will never trust nor use Triad Mechanical Company again!"

James H on April 2024

While many heating and air companies have come and gone, we have maintained an impeccable reputation since 1991, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. This family-owned and -operated HVAC service has responded promptly to calls in the Greater Metro Atlanta area for more than 20 years, offering the best value from certified technicians. While many heating and air companies have come and gone, we have maintained an impeccable reputation, which we have accomplished through hard work and unparalleled customer service. We pride ourselves on punctuality, courtesy to our customers and their families, and a rock solid guarantee on all the work we perform. Additional Counties Served: Oglethorpe, Walton, Gwinnett, Rockdale, & Portions of Dekalb, & Fulton. Additional phone - (770) 400-9084.

"No findings, no solution, no explanation… collected the fee… the issue is still there. I had Triad Mechanical Company for our HVAC issue that the outdoor unit is not running. I told Paul, the assigned technician, that we had tried resetting the power to the outdoor unit but that only brought the unit back on running for a few days before it stopped running again. I asked Paul’s help diagnose the issue for the root cause. However, when I came to the property just a few minutes later than Paul, he told me that he had done his work already, well, by simply resetting the power to the unit! (although I told him that we already tried that but it didn’t work!)… He didn’t have the patience to explain to me what diagnosis he had done (within that a few minutes) and he didn’t even bother to come off his truck to show me but saying “go ask your tenant”. He collected the fee and left. I will never trust nor use Triad Mechanical Company again!"

James H on April 2024


Avatar for Ragsdale Heating, Air & Plumbing

Ragsdale Heating, Air & Plumbing

4.75(
158
)
Approved Pro

Ragsdale Heating, Air & Plumbing

4.75(
158
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
47 local quotes requested

Since 1996, Ragsdale Heating, Air, Plumbing and Electrical has worked to maintain our reputation as the name you can trust for your heating, cooling, plumbing and electrical needs. Our Ragsdale team is comprised of truly good people, who care deeply and are devoted to taking exceptional care of our customers, our community, and each other. From the people in our office to the technicians out on the road, everyone here is dedicated to 100% customer satisfaction. We are a family who treats you like family, and we are 100% focused on doing what is right every time, every day. Our goal is for you to take comfort in knowing that when you have a problem, Ragsdale is here for you.

"The latest visit diagnosed a failed ignition valve which needed to be ordered and replaced. They arrived promptly, assessed, diagnosed and ordered the parts immediately. It only took a few days for the parts to arrive and they were able to schedule me in for the service call. The first technician was able to maintain the ignition valve until the new part was available, which was directly responsible for heating my home. The second technician installed the part and was able to assist me in some technical updates on the app and digital thermostats. I learned so much from Michael and appreciated his knowledge and patience. He also fixed a safety issue on the second level and adjusted the air flow for the system. The system sounds so much quieter. It was a warranty issue with no cost."

Dyanne W on November 2025

Since 1996, Ragsdale Heating, Air, Plumbing and Electrical has worked to maintain our reputation as the name you can trust for your heating, cooling, plumbing and electrical needs. Our Ragsdale team is comprised of truly good people, who care deeply and are devoted to taking exceptional care of our customers, our community, and each other. From the people in our office to the technicians out on the road, everyone here is dedicated to 100% customer satisfaction. We are a family who treats you like family, and we are 100% focused on doing what is right every time, every day. Our goal is for you to take comfort in knowing that when you have a problem, Ragsdale is here for you.

"The latest visit diagnosed a failed ignition valve which needed to be ordered and replaced. They arrived promptly, assessed, diagnosed and ordered the parts immediately. It only took a few days for the parts to arrive and they were able to schedule me in for the service call. The first technician was able to maintain the ignition valve until the new part was available, which was directly responsible for heating my home. The second technician installed the part and was able to assist me in some technical updates on the app and digital thermostats. I learned so much from Michael and appreciated his knowledge and patience. He also fixed a safety issue on the second level and adjusted the air flow for the system. The system sounds so much quieter. It was a warranty issue with no cost."

Dyanne W on November 2025

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FAQs for central humidifier installation and replacement projects in Dunwoody, GA

Aim for indoor humidity between 30% and 50%, with the sweet spot around 45%. That range keeps mold, dust mites, and musty odors in check while protecting drywall and woodwork. Staying in the zone also helps your HVAC system run more efficiently and supports healthier air for you and your family year-round, during hot summers and cold winter months.

With routine filter changes and coil cleanings, most whole-house units run for eight to 15 years. Heavy use, poor air quality, or bargain-bin equipment can shorten that span, while a well-maintained, high-quality model often makes it to the upper end of the range. Ask your installer about recommended service intervals to get the most mileage from your investment.

It depends on your climate. Homes in cold, dry regions can often shut the dehumidifier off once winter sets in. If you live in a warm, humid area—or your house tends to trap moisture—you may need to keep it running year-round. Use a simple hygrometer: if readings stay below 50%, give the unit a rest. Just remember to restart it when humidity climbs again to avoid mold and condensation.

Dry air feels cooler, so your AC doesn’t have to work as hard. By stripping out excess moisture, the dehumidifier lets you raise the thermostat a few degrees without losing comfort. A shorter AC runtime reduces electricity use and can shave a noticeable amount off your summer power bill. Energy-efficient models further enhance those savings.

If your home is under about 2,000 square feet, a well-placed portable unit can handle the load. Just remember they’re less efficient and need hands-on upkeep—think emptying tanks and cleaning filters. If you prefer set-and-forget convenience or plan to expand your living space, a whole-house model still offers better long-term comfort and lower energy use per square foot.

The Dunwoody, GA homeowners’ guide to central humidifier installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.

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