Air Conditioning McDonough GA

McDonough has depended on One Call’s 30 years of experience for regular or emergency air conditioning repair and A/C installation as well as A/C tune-ups on all makes and models for both homes and business.  Our expert design technicians aren’t limited to just one or two brands of air conditioners.  We can help you select the right air conditioner or product for you.  Our trucks are fully stocked and prepared to meet your needs quickly.  Our technicians are experienced and friendly.

Maintenance and Tune-Ups

One Call’s maintenance or tune-up plan is so much more than most maintenance plans.  Schedule your A/C tune-up online for One Call’s best air conditioning & heating systems maintenance or tune-ups rate of $69.00* or call (678) 909-8597 for the friendliest.  Ask about our “No Problems Guarantee” all summer long.  We maintain all brands and models in McDonough GA.

Service and Repairs

Your diagnostic fee is free with your paid repair.  Our flat rate pricing means no surprises.  One Call provides emergency air conditioner repair 24 hours a day for your air conditioner, furnace, heat pump, air handler or geothermal unit.  Ask about our 100% guaranteeSchedule your A/C repair online or call (678) 909-8597 .

Installation and Replacement

You can depend on our 30 years of experience to help you know if you should repair or replace your air conditioner, furnace.  We can help you make sure you’re “getting the most bang for your buck!”  We aren’t locked into just one or two brands.  We have helped many homes and businesses in McDonough and look forward to helping you too! Schedule your A/C replacement consultation online or call (678) 909-8597.

Heating McDonough GA

Furnace tune-ups or repairs, your oil or gas furnace is our priority with emergency furnace repairs 24 hour a day.  For all your heating and cooling needs schedule service online or for 24 hour heating and cooling needs call (678) 909-8597 .

HVAC McDonough GA

One Call has extensive experience with light commercial HVAC systems.  From commercial HVAC maintenance to commercial HVAC repairs and full commercial HVAC installation One Call provides complete emergency HVAC repairs 24 hours a day.

We can also help you with your: energy efficiency, indoor air quality, duct cleaning, insulation and pest control.

One Call also has locations in Conyers, Fayetteville, Newnan and Peachtree City.

Special Offers from One Call
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One Call Heating & Cooling Location

922 Hwy 81 #252
McDonough, GA 30252
(678) 909-8597

Why Choose One Call?


With over 80 years combined experience, you can bet we’ve seen your situation before.


This is not our first rodeo. You might as well hire someone who knows what they’re doing. We get it right the 1st Time. Our instruments and techs are the best in the HVAC industry.

Timely Turn Around

Your time is valuable, so we show up On-Time and we work steadily until the job’s done.