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Best heating and air conditioning pros near Roswell, GA

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TRUSTED BY ROSWELL, GA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.6k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Roswell - Updated Nov 2026

Avatar for Atlanta Air Authority, Inc.
Atlanta Air Authority, Inc.
4.9(
237
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceElectric Furnace / Forced Air Heating System - Install+5 more

Serving Roswell, GA and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"A giant shoutout to Atlanta Air Authority for coming to our rescue this week. We came home from being out of town on Sunday to a hot house. Our A/C unit was toast. Their quick response and fantastic service had us back up and running with a new unit within 3 days. Canâ t say enough good things about them. Definitely check them out next time you need HVAC service!!"
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+9

Response time4 hrs
6 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for Dayco Systems LLC
Dayco Systems LLC
4.9(
179
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceCentral A/C - Service or Repair

Serving Roswell, GA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"As usual, whenever we need a service provider, we checked Angie's List for HVAC service and sales.  I called Dayco, a young man promptly answered the phone.  I explained that I was interested in a new 2 ton split system.  He said he would have someone call back shortly.  Shortly, the owner called, we spoke about my needs and made an appointment.
The owner came out to assess our needs, designed a package for us, fully explained the components and installation process.  The next day the Dayco Team was on time, ready to work and removed the old system in very little time.  The new system was installed, we discussed a better location for the thermostat, the Team cleaned up, explained operation of the thermostat and were on their way.  The new Trane system is perfect!
The Dayco Team was prompt, courteous, professional and they delivered what they promised.  I will be replacing another unit this Spring.  There is no doubt in my mind that I will call Dayco.
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+48

30 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Triad Mechanical Company Inc
Triad Mechanical Company Inc
4.8(
191
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+45 more

Serving Roswell, GA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"As a realtor, I often encounter homes needing new HVACs or repairs. I constantly recommend Triad Mechanical to my clients because they are fast and affordable! Last week, I had a competing business give me a quote for a new AC for the basement. They quoted $7000. I immediately called Kaylee at Triad to see if they could give us a quote as well. They came out the next day and within fifteen minutes my seller received an estimate with almost $2500 savings! Needless to say, we will be moving ahead with Triad!"
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+17

Recommended by96%of homeowners
Avatar for Cheeky Heating, Cooling & Plumbing
Cheeky Heating, Cooling & Plumbing
5.0(
69
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+7 more

Serving Roswell, GA and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Will and Eddie from CHEEKY Heating and Air came out today to install the 5” filter replacement on our Air Handler. Additionally, he and co-tech Eddie installed an additional return air vent and line to our overall system. Will seemed to be thorough and knowledgeable of all aspects regarding the installation. During the installation and completion of the work, Will kept us informed about the install progress and made sure there was “no mess left behind” when work was done. Thanks Will and CHEEKY for your trusted HVAC installation."
AC Condenser Install
HVAC Replacement
New Air Handler
Performance Testing
New Heat Pump

+29

28 neighbors recently requested a quote
Avatar for Premier HVAC Mechanical Corporation
Premier HVAC Mechanical Corporation
4.7(
44
)
Central A/C - InstallCentral A/C - Service or RepairHeat Pump - Install or Replace+3 more

Serving Roswell, GA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"We used Premier HVAC Mechanical Corporation to replace our upstairs HVAC located in the attic, and they were fantastic. Steve and his team protected our flooring by laying plastic along our hallway, moved the old unit out and installed the new one. We were completely satisfied with the entire process and their attention to details. We highly recommend them."
Response time9 hrs
12 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Guardian Heating, Air, Plumbing & Electrical
Guardian Heating, Air, Plumbing & Electrical
5.0(
16
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallHeat Pump - Install or Replace+9 more

Serving Roswell, GA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

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!

Your Guardian Experts
Free HVAC Estimates
Tankless Water Heater Repair, Maintenance and Installation
Fully Stocked Trucks
Heater Tune Up

+27

16 neighbors recently requested a quote
Recommended by93%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

When faced with HVAC issues, it's best to begin by ensuring the thermostat settings are correct for either heating or cooling. If the system isn't responding, check the thermostat for proper function and power supply. It's also important to examine air filters, as clogged ones can decrease performance. Confirm the power supply to the system by checking the circuit breakers and fuses. If these basic steps fail to resolve the issue, contact an HVAC professional for a more detailed diagnosis and repair.

A home AC unit provides anywhere from one-half to five tons of cooling and requires approximately two to four pounds of refrigerant per ton of cooling. At approximately five to 10 minutes to fill one pound of refrigerant, a home that requires three tons of cooling will take about six to 12 pounds of refrigerant and approximately 30 minutes to two hours to completely recharge the unit.

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

Traditional central air conditioning systems require ductwork to circulate air throughout the home. Alternatively, you can add air conditioning with a mini-split ductless air conditioning system, which can be just as energy efficient as a central air conditioner. This type of system consists of two units–an outside unit that holds the compressor and condenser and an indoor unit that holds an air-handler. With multi-zone ductless systems, there are multiple indoor air handlers tied to a single outdoor compressor/condenser, allowing the system to cool multiple rooms.

The Roswell, GA homeowners’ guide to heating and air conditioning services

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