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HVAC Company McDonough GA Homeowners Can Count On

Locally owned, licensed, and insured heating and air conditioning service for McDonough homeowners, from the Square to Eagles Landing and beyond.

Heating and Air Conditioning Service in McDonough, Georgia

All Purpose Heating & Air Conditioning provides full-service heating and air conditioning repair, installation, and maintenance to homeowners in McDonough, Georgia. If your system is struggling in the middle of a Henry County summer or your furnace won’t fire up when a cold front rolls through, we’re the local company that comes out and fixes it right.

McDonough sits about thirty minutes southeast of Atlanta on I-75, and our crews make that run regularly. We handle everything from AC repair and furnace work to full system replacements, and we carry financing options on complete HVAC systems so a major replacement doesn’t have to wait until the timing is perfect.

We’ve been doing this for more than 35 years. That’s long enough to know that a home in a newer Eagles Landing subdivision and a historic house near the Square are not the same job. The equipment is different, the ductwork is different, and the sizing math is different. We pay attention to that.

If you’re ready to get a real number on what your repair or replacement will cost, request your estimate and we’ll get you on the schedule.

OUR SERVICES

  • Furnace Repair
  • Furnace Installation
  • Heat Pump Repair & Install
  • Heating Maintenance
  • Emergency Heating
  • AC Repair
  • AC Installation
  • AC Maintenance
  • Ductless Mini-Splits
  • Ductwork & Duct Sealing
  • Panel Upgrades
  • Rewiring & Circuits
  • Outlets, Switches & Lighting
  • EV Charger Installation
  • Electrical Troubleshooting
  • Water Heater Repair & Install
  • Drain Cleaning
  • Leak Detection & Pipe Repair
  • Fixture Installation
  • Emergency Plumbing
Testimonials

Trusted by Our Customers

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Thomas Gibson profile picture
Thomas Gibson
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I had an emergency electrical outage problem in the kitchen/dining room area. The power outage affected the lights and several appliances. Ronnie performed a few troubleshooting tests of the breaker unit and outlets. He was ultimately able to pinpoint the source of the problem and discovered that the kitchen lamp fixture had a loose fluorescent bulb. After Ronnie tightened it, everything began to operate normally again. He was very thorough, professional, fair and courteous. I will contract his services for all my electrical needs in the future.
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Kendra d profile picture
Kendra d
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Very detailed and trustworthy company. Thank you for your service Ronnie.
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Jakeise Towns profile picture
Jakeise Towns
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Ronnie is very professional! I call him for all my HVAC issues. He’s a very straightforward guy and tells you exactly what’s needed to be done. I will definitely continue to use this guy!
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Chaunte Banks profile picture
Chaunte Banks
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I received services twice this year from All Purpose; for the replacement of my AC unit and the replacement of my furnace and each time I received superb services. Mr. Rudy and Deron were in sync working together and making sure my home was cooling and heating accordingly. They also helped me set up my smart Thermostat and taught me how to use it, answering all my questions and concerns. Very reasonable priced and provide visual details of what's going on. I definitely highly recommend All Purpose Heating & Air Condition!
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R I profile picture
R I
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We are a new client for this business.Ronnie with All Purpose Heating & Air provided professional and prompt service. Came out on the same day that we called to do an assessment. Communication was consistent and the delivery on service and equipment was efficient. We would definitely recommend his business if you are in need of AC service/repair. Ronnie thank you for getting us cool!
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Andreaus Evans profile picture
Andreaus Evans
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We are extremely pleased with the service All Purpose Heating & Air Conditiining provided to us. Ronnie came out to our home to evaluate the issue we were experiencing. He explained everything from top to bottom and resolved the issue. Ronnie is very courteous, professional, knowledgeable, punctual and most importantly HONEST..All Purpose showed us that customers are truly their #1 priority. The service was excellent. We recommend All Purpose and remain extremely comitted and satisfied. Give them a call you will not be disappointed. Andreaus Evans

Why McDonough Homes Demand an HVAC Tech Who Knows the Area

Henry County’s climate is not forgiving to HVAC equipment. Summers here are long, humid, and relentless, the kind that push a central air system to run eight, ten, twelve hours a day for weeks at a stretch. That sustained load accelerates wear on capacitors, contactor contacts, and blower motors. It also means a system that’s even slightly low on refrigerant charge won’t just underperform, it’ll freeze up and stop cooling entirely at the worst possible moment.

Then winter arrives fast. Cold fronts that drop McDonough into the twenties overnight are not rare, and a furnace that’s been sitting idle since February gets tested hard the first time you need it. Heat exchangers crack, ignitors fail, and gas valves stick. These aren’t surprises if you’ve been working in this area for a long time. They’re patterns.

The housing stock here makes the job more complicated, not less. Historic homes near the Square often have older duct systems with gaps, poor insulation, and layouts that were never designed for modern forced-air equipment. Proper duct sealing and careful system sizing matter enormously in those houses. On the other end of the spectrum, the large homes in Lake Dow and Eagles Landing require equipment that’s correctly matched to the square footage and the load, and undersizing a system in a house that size is a mistake a homeowner feels every summer for years.

Knowing these differences before you pull into a driveway is what separates a technician who knows McDonough from one who’s just passing through.

Heating and Air Conditioning Services We Offer in McDonough

We cover the full range of heating and air conditioning work for McDonough homeowners. Here’s what that looks like in practice.

  • AC Repair. When your system stops cooling, starts short-cycling, or is running but not keeping up, we diagnose the actual problem rather than guess at it. Common culprits include failed capacitors, low refrigerant, dirty evaporator coils, and blocked condensate lines. If your system has quit on you, schedule AC repair in McDonough and we’ll get out to you.
  • Furnace Repair. A furnace that won’t ignite, won’t stay lit, or is producing weak heat usually has a specific, fixable cause. We check ignitors, flame sensors, heat exchangers, and gas pressure. Cold snaps in Henry County don’t wait, so neither do we. Book furnace repair in McDonough before the next cold front hits.
  • AC Installation and Replacement. If your system is aging out or has reached the point where repairs no longer make sense, a properly sized replacement is the right call. We match the equipment to your home’s actual load. Learn more about AC installation in McDonough and what goes into a replacement done right.
  • Furnace Installation and Replacement. We install gas furnaces sized correctly for the home, with attention to duct condition and airflow before the new unit ever goes in.
  • Heat Pump Repair and Installation. Heat pumps handle both heating and cooling and are a strong fit for many McDonough homes. We repair refrigerant leaks, faulty reversing valves, and defrost control issues, and we install new heat pump systems when replacement is the right move.

Financing is available on complete HVAC system installations for homeowners who need it. Give us a call or request your estimate to talk through your options.

Real Clients, Real Results

Electrical Repairs in Atlanta GA

How the Process Works for McDonough Homeowners

We keep it straightforward from the first call to the finished job. Here’s what to expect.

First, you reach out. Call us or request your estimate online and tell us what’s going on. Whether it’s a system that’s stopped working, a unit that’s struggling, or a replacement you’ve been putting off, we’ll ask the right questions to understand the situation before anyone shows up.

Then we come out and take a look. A technician visits your home, evaluates the equipment, checks the ductwork where it’s relevant, and gives you a clear picture of what’s actually happening. For a repair, that means identifying the specific component or condition causing the problem. For a replacement, that means measuring the load correctly so the new system is sized for your house, not just a generic square footage estimate.

You get a real number before any work starts. We provide an estimate so you know what the job will cost. What drives that number depends on the scope: the type of repair, the equipment involved, the condition of existing ductwork, and whether financing applies. There are no vague ranges or surprises after the fact.

We do the work and clean up behind ourselves. Once you’re ready to move forward, we schedule the job and get it done. Repairs are typically completed in a single visit. Installations take longer, and we’ll give you a realistic timeframe upfront.

McDonough homeowners shouldn’t have to chase down a contractor to find out what’s happening with their job. We communicate clearly, show up when we say we will, and leave the space the way we found it.

Areas We Service

Alpharetta

Atlanta

Conyers

Peachtree City

Newnan

McDonough

Commercial AC repairs in Atlanta All Purpose Heating & Air Conditioning

+

Years In Business
FAQ

Common Questions Process

The cost depends on several factors: what's wrong with the system, which components need to be replaced, the age and type of equipment, and whether the ductwork needs attention before a new system goes in. A repair for a failed capacitor is a very different job than replacing a heat exchanger or a full outdoor unit. The only way to get a real number is to have a technician look at your specific system. We provide an estimate before any work starts so you know exactly what you're agreeing to.

Most repairs are completed in a single visit, typically a few hours depending on parts availability and what needs to be done. A full system installation generally takes most of a day, though larger homes or jobs with ductwork modifications can run longer. We'll give you a realistic timeframe when we provide your estimate so you can plan around it.

That decision comes down to a few things: the age of the system, the cost and nature of the repair, and how the unit has been performing overall. A system that's getting a major repair every season and is well past the typical service life that industry guidelines suggest for central AC equipment is often a better candidate for replacement than another fix. A technician who has actually looked at your equipment can give you an honest read on which direction makes more sense for your situation.

Yes. Older homes near the Square are a regular part of our work in Henry County. These houses often have duct systems that were installed decades ago and may have gaps, poor insulation, or layouts that weren't designed for modern equipment. We evaluate duct condition as part of any installation job and address sealing or other issues before a new system goes in, because a well-sized unit connected to leaky ducts won't perform the way it should.

Yes. All Purpose Heating & Air Conditioning offers financing on complete HVAC system installations. If a full replacement is the right call but the upfront cost is a concern, ask about financing options when you request your estimate and we'll walk you through what's available.

We Service

Atlanta, & Surrounding Areas

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(678) 913-6343 or (678) 595-1506

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