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Best air conditioning pros near Lithonia, GA

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Top-Rated Air conditioning pros in Lithonia - Updated Nov 2026

Avatar for Ace & A Heating & Air Conditioning of DeKalb
Ace & A Heating & Air Conditioning of DeKalb
4.7(
94
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Lithonia, GA and surrounding areas

Approved

In business since 1975

Free estimates

Emergency services offered

"We have used Ace & A heating and air-conditioning for over 20 years. They are always friendly and courteous and give excellent service. Their technicians are very knowledgeable and are able to diagnose and fix any issues that we may have with our systems. I highly recommend them!"
APCO-X for Effective COVID-19 Filtration
Owner - Sam West Sr.
General Manager-Rick Coggins
Just a few of the Ace & A Fleet.
Two of our newest Service Vans

+4

Response time7 hrs
Response rate100%
16 neighbors recently requested a quote
Avatar for ARMATO HEATING AND AIR INC
ARMATO HEATING AND AIR INC
5.0(
24
)
Central A/C - Install

Serving Lithonia, GA and surrounding areas

Approved

In business since 2012

Credit card accepted

Customers say: True professional

We have over 28 years of industry experience, and is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company foundation is built on honesty and integrity. We specialize in Central A/C, Heating and Furnace systems in addition to a variety of HVAC-related projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction!

42 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for Estes Services - HVAC Plumbing & Electrical
Estes Services - HVAC Plumbing & Electrical
4.5(
668
)
Central A/C - InstallCentral A/C - Install - For BusinessCentral A/C - Service or Repair+3 more

Serving Lithonia, GA and surrounding areas

Approved

In business since 1949

Free estimates

Emergency services offered

"The technician arrived as scheduled and was very professional. He inspected my furnace and air conditioning unit and provided information to me on its operation. Very courteous and seemed knowledgeable. Was able to explain things to me in a manner that I could understand"
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+31

Response time5 hrs
Response rate100%
34 neighbors recently requested a quote
Avatar for Climate Heroes
Climate Heroes
5.0(
12
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+2 more

Serving Lithonia, GA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Cesar came out to help when my AC wasn’t cooling properly, and he quickly diagnosed the problem. He found a faulty part that was causing the issue and repaired it, getting the system back to cooling normally. Cesar was professional, knowledgeable, and explained what needed to be done throughout the service. I had a great experience with Climate Heroes and was very happy with the service!"
Horizontal Flow 2
Additional Photos
Horizontal Flow
AC Install Before & After
Dual Outdoor Install

+18

30 neighbors recently requested a quote
Avatar for Tropical Heating & Air Solutions LLC
Tropical Heating & Air Solutions LLC
4.7(
14
)
Central A/C - Service or RepairCentral A/C - Service or Repair - For Business

Serving Lithonia, GA and surrounding areas

Approved

In business since 2015

Credit card accepted

Offers commercial services

Tropical Heating & Air Solutions, LLC is a locally owned business established to help meet the comfort needs of residents and business owners throughout Covington, Conyers, Lithonia, and surrounding areas. If your air conditioner or furnace is not working as expected, or stopped working altogether, you can count on us to deliver timely high-quality service. We are professionally trained to handle all system makes and models but recommend only the best and most reliable system for your home or business needs. Georgia is known to have extreme weather conditions and we understand your frustration when your heating or cooling units are not taking care of your temperature control needs. Allow us to help ease your stress and discomfort. At Tropical Heating & Air Solutions, we take pride in treating each customer like family, and each house or business as if it is our own.

Response time4 hrs
Recommended by90%of homeowners
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Air Conditioning FAQs, answered by experts

To make the most out of your AC, consider implementing the following best practices: 

  • Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

  • Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

  • Clean or replace the filter at least every two months. 

  • Inspect the AC’s fan and straighten it if necessary. 

  • Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

  • Turn off (or adjust the temperature) when you leave the house.

While most air conditioners can last between 10 and 20 years, they will only last this long (or longer) if properly taken care of. Routine maintenance and inspections help keep your AC unit running in tip-top shape but understanding what factors will decrease its lifespan will also help keep your unit running cool.

Some things that shorten your AC’s lifespan include:

  • Extreme outdoor conditions, like high humidity or extensive salt spray 

  • Improper installation

  • Extended run times, either by the unit being too small or the thermostat setting too low

  • Not performing required maintenance

The general rule of thumb for figuring out how much AC tonnage you need in your home is that for every 500 to 600 square feet of space you need to cool, you’ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power. 

For washable or electrostatic air conditioner filters, you can soak and rinse them with water. If you rinse the filter with water, make sure to use a faucet, shower head, or garden hose with a gentle water pressure setting, as strong water pressure could damage the filter.

But for disposable filters, water could ruin the filter, even allowing mold to grow in the filter. Instead, these filters should be replaced.

Water buildup in your HVAC system is a cause for alarm. If water accumulates in your ductwork, it can drastically lower your home's air quality and create safety hazards. These risks include mold growth, damage to your HVAC system, and attracting pests that are seeking water into your ducts. Proper insulation and sealing of ducts can prevent this, and regular inspection and maintenance can address water damage problems before they become too severe.

The Lithonia, GA homeowners’ guide to air conditioning services

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