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Find Central humidifier installers and replacers in Lithonia

Grace Maintenance Service MEP LLC

3289 Powder Springs Road
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Grace Maintenance Service MEP LLC

3289 Powder Springs Road
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
14 years of experience
Free onsite estimate

GRACE MAINTENANCE SERVICES is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

GRACE MAINTENANCE SERVICES is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


Avatar for Cunningham Associates Heating & Air Conditioning

Cunningham Associates Heating & Air Conditioning

3114 Marjan Dr
5.00(
3
)
Approved Pro

Cunningham Associates Heating & Air Conditioning

3114 Marjan Dr
5.00(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

When temperatures get extreme, we all rely on our HVAC systems to keep us safe and comfortable. At Cunningham Associates Heating and Air Conditioning, we make sure that those systems can keep up with your needs. Our trained, licensed, and experienced heating and cooling technicians can help you with everything from repairs to replacements. We even offer affordable maintenance plans to ensure that your equipment is always in the best possible shape, allowing your family to experience the highest possible level of comfort. Whatever you need to make your home environment ideal, we have it here at Cunningham Associates Heating and Air Conditioning – our Atlanta team is always ready to go above and beyond in the name of customer satisfaction!

"The price a little bit high. but besides that all good"

Robert G on March 2024

When temperatures get extreme, we all rely on our HVAC systems to keep us safe and comfortable. At Cunningham Associates Heating and Air Conditioning, we make sure that those systems can keep up with your needs. Our trained, licensed, and experienced heating and cooling technicians can help you with everything from repairs to replacements. We even offer affordable maintenance plans to ensure that your equipment is always in the best possible shape, allowing your family to experience the highest possible level of comfort. Whatever you need to make your home environment ideal, we have it here at Cunningham Associates Heating and Air Conditioning – our Atlanta team is always ready to go above and beyond in the name of customer satisfaction!

"The price a little bit high. but besides that all good"

Robert G on March 2024


Avatar for Omega Heating and Air, Inc.

Omega Heating and Air, Inc.

1915 Old Covington Road NE
5.00(
5
)
Approved Pro

Omega Heating and Air, Inc.

1915 Old Covington Road NE
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
601 local quotes requested

Specializing in heating and air and ventilation. Repairs, maintenance, and replacement of HVAC equipment; all makes and models.

"Jason Erwin was the best sales advisor I have worked with. He knows alot about AC systems and answered all of my question prior to my purchase.The install crew was very efficient installing a complete AC system. They wasted no time while they were at my home and answered all of my questions. They also made sure that they cleaned up after they were finished."

Buddy J on August 2023

Specializing in heating and air and ventilation. Repairs, maintenance, and replacement of HVAC equipment; all makes and models.

"Jason Erwin was the best sales advisor I have worked with. He knows alot about AC systems and answered all of my question prior to my purchase.The install crew was very efficient installing a complete AC system. They wasted no time while they were at my home and answered all of my questions. They also made sure that they cleaned up after they were finished."

Buddy J on August 2023


Avatar for Ace & A Heating & Air Conditioning of DeKalb

Ace & A Heating & Air Conditioning of DeKalb

2768 E College Ave
4.72(
88
)
Approved Pro

Ace & A Heating & Air Conditioning of DeKalb

2768 E College Ave
4.72(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
349 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 Armato Heating and Air

Armato Heating and Air

3180 Florence Rd.
5.00(
13
)
Approved Pro

Armato Heating and Air

3180 Florence Rd.
5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2051 local quotes requested

HVAC Installation Experts - Armato Heating and Air With over 25 years of dedicated experience in HVAC installations, Armato Heating and Air has established itself as a trusted name in the Atlanta metro region. As an exclusive Daikin dealer, we proudly offer industry-leading HVAC solutions that ensure the highest quality & comfort, and efficiency for your home. Our team of HVAC installation experts is committed to delivering professional, reliable, and top-tier service. Whether you want to upgrade your existing HVAC system, replace an outdated unit, or install a new heating and cooling system, we have the expertise and skills to get the job done right the first time. At Armato Heating and Air, we specialize in installing high-efficiency Daikin HVAC systems, which are renowned for their innovative technology and exceptional performance. Our exclusive partnership with Daikin offers some of the most comprehensive warranty packages, giving you peace of mind and long-lasting comfort. Ask your HVAC designer about the available rebates & our 12/12/12 WARRANTY! We take pride in providing our clients with customized HVAC solutions that fit their unique needs and preferences. From residential HVAC installations to commercial projects, our certified technicians use the latest tools and techniques to ensure optimal performance and energy savings. Choose Armato Heating and Air for your next HVAC installation and experience the difference that quality and experience can make. Contact us today to schedule a consultation or learn more about our Daikin products and services!

"Brent Weiss oversaw the recent purchase and install of a Daikin Mini split unit in my mid century modern renovated ranch house sunroom. The financing option Armato Heat and Air offered was very helpful, communication with the installers and speed of the installation was impressive. And the new unit- amazing!"

Luke W on September 2025

HVAC Installation Experts - Armato Heating and Air With over 25 years of dedicated experience in HVAC installations, Armato Heating and Air has established itself as a trusted name in the Atlanta metro region. As an exclusive Daikin dealer, we proudly offer industry-leading HVAC solutions that ensure the highest quality & comfort, and efficiency for your home. Our team of HVAC installation experts is committed to delivering professional, reliable, and top-tier service. Whether you want to upgrade your existing HVAC system, replace an outdated unit, or install a new heating and cooling system, we have the expertise and skills to get the job done right the first time. At Armato Heating and Air, we specialize in installing high-efficiency Daikin HVAC systems, which are renowned for their innovative technology and exceptional performance. Our exclusive partnership with Daikin offers some of the most comprehensive warranty packages, giving you peace of mind and long-lasting comfort. Ask your HVAC designer about the available rebates & our 12/12/12 WARRANTY! We take pride in providing our clients with customized HVAC solutions that fit their unique needs and preferences. From residential HVAC installations to commercial projects, our certified technicians use the latest tools and techniques to ensure optimal performance and energy savings. Choose Armato Heating and Air for your next HVAC installation and experience the difference that quality and experience can make. Contact us today to schedule a consultation or learn more about our Daikin products and services!

"Brent Weiss oversaw the recent purchase and install of a Daikin Mini split unit in my mid century modern renovated ranch house sunroom. The financing option Armato Heat and Air offered was very helpful, communication with the installers and speed of the installation was impressive. And the new unit- amazing!"

Luke W on September 2025


Avatar for Cool Air Mechanical LLC

Cool Air Mechanical LLC

1950 Guffin Lane
4.75(
267
)
Approved Pro

Cool Air Mechanical LLC

1950 Guffin Lane
4.75(
267
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
5045 local quotes requested

For years, Cool Air Mechanical has been an expert provider of heating, cooling, plumbing, indoor air quality, generators and electrical services throughout the greater Atlanta region. If you find that it is time to have a new heating or cooling system installed in your home, or if you need someone to take over maintenance for you HVAC system in Atlanta, call us today and learn more about our full range of services. Each of our technicians is chosen based on their ability to provide the utmost in service to each of the customers they visit and they are prepared for nearly any issue that could arise. If you are interested in getting more out of your heating and cooling systems in Atlanta or the surrounding area, give us a call today. Additional website: www.770coolair.com

"Cool Air Mechanical LLC delivered exceptional service with our water heater installation! From the moment we scheduled the appointment, their team was professional, punctual, and incredibly knowledgeable. They assessed our needs thoroughly and guided us to the perfect unit for our home. Installation was seamless—efficient, clean, and done with care. We appreciated the technicians’ attention to detail and their willingness to explain everything clearly. What truly stood out was their commitment to customer satisfaction. They even followed up to ensure everything was running perfectly! It’s rare to find a company that combines technical expertise with genuine courtesy. Highly recommend Cool Air Mechanical for anyone in need of top-notch HVAC or plumbing services. They’ve earned our trust and future business!"

Carli S on July 2025

For years, Cool Air Mechanical has been an expert provider of heating, cooling, plumbing, indoor air quality, generators and electrical services throughout the greater Atlanta region. If you find that it is time to have a new heating or cooling system installed in your home, or if you need someone to take over maintenance for you HVAC system in Atlanta, call us today and learn more about our full range of services. Each of our technicians is chosen based on their ability to provide the utmost in service to each of the customers they visit and they are prepared for nearly any issue that could arise. If you are interested in getting more out of your heating and cooling systems in Atlanta or the surrounding area, give us a call today. Additional website: www.770coolair.com

"Cool Air Mechanical LLC delivered exceptional service with our water heater installation! From the moment we scheduled the appointment, their team was professional, punctual, and incredibly knowledgeable. They assessed our needs thoroughly and guided us to the perfect unit for our home. Installation was seamless—efficient, clean, and done with care. We appreciated the technicians’ attention to detail and their willingness to explain everything clearly. What truly stood out was their commitment to customer satisfaction. They even followed up to ensure everything was running perfectly! It’s rare to find a company that combines technical expertise with genuine courtesy. Highly recommend Cool Air Mechanical for anyone in need of top-notch HVAC or plumbing services. They’ve earned our trust and future business!"

Carli S on July 2025


Avatar for Triad Mechanical Company Inc

Triad Mechanical Company Inc

393 Swanson Dr
4.84(
185
)
Approved Pro

Triad Mechanical Company Inc

393 Swanson Dr
4.84(
185
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
911 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!"

Zhentao 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!"

Zhentao H on April 2024


Avatar for Casteel Heating, Cooling, Plumbing & Electrical

Casteel Heating, Cooling, Plumbing & Electrical

778 PETTY RD
4.74(
88
)
Approved Pro

Casteel Heating, Cooling, Plumbing & Electrical

778 PETTY RD
4.74(
88
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1753 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

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024

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

"Thumbs up for the construction at my residence, a three story elevator shaft"

Diana D on October 2024


Avatar for R Wiley Heating & Air

R Wiley Heating & Air

371 Birchwood Dr
4.68(
1,045
)
Approved Pro

R Wiley Heating & Air

371 Birchwood Dr
4.68(
1,045
)
Approved Pro
Customers say: Super punctual
1833 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 Comfort Zone Heating & Cooling

Comfort Zone Heating & Cooling

2905 Marietta Hwy
4.66(
325
)
Approved Pro

Comfort Zone Heating & Cooling

2905 Marietta Hwy
4.66(
325
)
Approved Pro
Customers say: Super punctual
707 local quotes requested
18 years of experience

Comfort Zone Heating & Cooling is family owned and operated heating and cooling company. We are located in Canton, GA and have been in business for over 17 years! Our service area includes Canton, Woodstock and most of North Georgia. We provide heating and cooling maintenance, repairs and replacement. We pride ourselves in delivering 5 star customer service! Comfort Zone's core focus is "Being the hero is people's lives so they can focus on what matters most"! We operate focused on our Core Values of being humble, exceptional, responsible, optimistic, empathy and supportive team members. Our replacement appointments are FREE! We offer competitive pricing and financing options. Our Maintenance Program offers great benefits, including priority service appointments. 10% Military discount!

"Absolutely awful people - The "tech" (glorified salesman) came into my house trying to upsell me on a bunch of ineffectual products - when I declined - politely at that - he got hostile and started insulting me - when I reacted to his disrespectful attitude and told him to leave my property immediately - he then threatened me physically - he is very fortunate that I have a de-escalation attitude towards these matters - when the owner called me to ask about this - he promised he would make this right - he never did and the dangerous tech still works for him to this day. There's many other choices in this market - save yourself the headache and safety."

David R on July 2025

Comfort Zone Heating & Cooling is family owned and operated heating and cooling company. We are located in Canton, GA and have been in business for over 17 years! Our service area includes Canton, Woodstock and most of North Georgia. We provide heating and cooling maintenance, repairs and replacement. We pride ourselves in delivering 5 star customer service! Comfort Zone's core focus is "Being the hero is people's lives so they can focus on what matters most"! We operate focused on our Core Values of being humble, exceptional, responsible, optimistic, empathy and supportive team members. Our replacement appointments are FREE! We offer competitive pricing and financing options. Our Maintenance Program offers great benefits, including priority service appointments. 10% Military discount!

"Absolutely awful people - The "tech" (glorified salesman) came into my house trying to upsell me on a bunch of ineffectual products - when I declined - politely at that - he got hostile and started insulting me - when I reacted to his disrespectful attitude and told him to leave my property immediately - he then threatened me physically - he is very fortunate that I have a de-escalation attitude towards these matters - when the owner called me to ask about this - he promised he would make this right - he never did and the dangerous tech still works for him to this day. There's many other choices in this market - save yourself the headache and safety."

David R on July 2025

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FAQs for central humidifier installation and replacement projects in Lithonia, 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 Lithonia, 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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