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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

29 neighbors recently requested a quote
Recommended by95%of homeowners
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

Yes, it's normal for air conditioners to leak tiny amounts of water due to condensation. Under normal circumstances, all excess moisture travels to the drain pan to be pumped through your system's drain line. You should call a technician to diagnose the issue if you're noticing frequent leaking or pooling. It's also important to investigate if your homeowners insurance can cover water damage.

After a while, dust, dirt, and other debris accumulates on an AC unit's coils and filters, making it less efficient and spreading allergens and other air pollutants throughout your home. Cleaning your AC unit will keep it running efficiently, minimizing future breakdowns and improving your indoor air quality.

You should flush your AC drain line once every three months to keep it clear of debris and buildup. Keeping your AC drain line clean prevents clogs, backups, mold growth, and extra wear on your AC unit. If you live in a humid area or have several furry pets, up your cleaning schedule to once a month.

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

A non-maintained AC is more likely to perform poorly, increase your energy bills, and undergo more severe issues like breakage and water damage. That’s why DIY cleaning or professional maintenance is recommended annually. Otherwise, you might end up paying more in the end than you would for annual service. You can purchase cheap AC cleaning kits if you prefer going the DIY route.

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.