How Much Does AC Repair Cost In Alpharetta?

AC repair costs vary based on the failed component, system type, and repair complexity. Minor repairs, like capacitor replacement, cost less than major repairs involving compressors or extensive refrigerant-leak repairs. We provide upfront pricing after diagnosing the specific problem so you can make informed decisions.

How Do I Know If My AC Needs Repair Or Replacement?

Consider replacing your system if it's 15+ years old, uses R-22 refrigerant, requires frequent repairs, or has failed major components, such as the compressor. For newer systems with isolated component failures, repair typically makes more financial sense. Our technicians provide honest guidance based on your specific situation.

What Are The Common Signs My AC Needs Repair?

Watch for weak airflow, warm air from registers, unusual noises like grinding or screeching, frequent cycling on and off, moisture or ice on the indoor unit, rising humidity levels, or dramatically increased energy bills. Any of these symptoms indicates problems requiring professional diagnosis.

How Long Do AC Repairs Take?

Many common repairs can be completed within 2-4 hours once parts are available. Simple fixes like capacitor replacement or contactor repair often take less than an hour. Complex repairs involving refrigerant leak detection, compressor replacement, or extensive electrical troubleshooting may require a full day or multiple visits for parts ordering.

Can You Repair All AC Brands?

Our technicians repair all major brands, including Trane, Carrier, Lennox, Goodman, Rheem, Amana, Daikin, and Mitsubishi Electric. We maintain relationships with parts suppliers to enable rapid component sourcing and stay current with manufacturer training for high-end inverter systems and smart HVAC technology.

Do You Service Ductless Mini-Split Systems?

We provide ductless AC repair for mini-split systems common in Alpharetta's condos, townhomes, and home additions. Our technicians diagnose inverter-driven compressors, electronic expansion valves, and communication errors between indoor and outdoor units using manufacturer-specific diagnostic equipment.

What Areas Do You Serve For AC Repair?

We provide AC repair services throughout Alpharetta, including Windward, Crabapple, Glen Abbey, Avalon, Halcyon, White Columns, and Country Club of the South. We also serve nearby Milton, Johns Creek, Roswell, Cumming, and Forsyth County with prompt response service.

Are Your Technicians Licensed?

All of our technicians are licensed under GAREGCN2011384. They are also background-checked and drug-tested for your peace of mind.

What If The Repair Doesn't Fix The Problem?

If the same issue returns after a repair, we'll come back at no additional charge to resolve it. All repairs are backed by our 100% satisfaction guarantee.

Do You Offer Same-Day AC Repair?

We prioritize same-day service for emergency cooling failures when parts are available and technicians can reach your location within service windows. Common components are stocked on service vehicles, enabling immediate repairs for frequently failing parts such as capacitors, contactors, and fan motors.

How Can I Prevent Future AC Repairs?

Schedule annual professional maintenance to catch problems with your AC before they cause failures. Regular filter changes, keeping outdoor units clear of debris, maintaining proper airflow at registers, and addressing minor issues promptly all extend system life. We offer maintenance plans that include priority scheduling and comprehensive system inspections.

AC Repair Alpharetta, GA | (404) 689-4168 | One Hour Heating & Air Conditioning

Always on Time

AC Repair Alpharetta

One Hour Heating & Air Conditioning of North Atlanta

AC Repair Alpharetta GA

One Hour Heating & Air Conditioning offers AC repair in Alpharetta, GA. Our emergency HVAC technicians fix central air conditioners, heat pumps, and ductless systems with issues like frozen evaporator coils, compressor failure, electrical faults, and refrigerant leaks. We use proper diagnostic tools to test components, including capacitors, contactors, control boards, and blower motors.

Why choose us?

Punctual, friendly, and knowledgeable technicians
Special offers and seasonal discounts
100% satisfaction guarantee
Financing options for qualified customers
Licensed technicians (GAREGCN2011384)

Call (404) 689-4168 for air conditioner repair service.

Prompt AC Repair Services For Alpharetta Homes

We offer prompt AC repair services in Alpharetta, Georgia, for component failures, electrical issues, refrigerant leaks, and airflow restrictions that prevent your system from maintaining cooling. We focus on resolving issues that affect indoor comfort, energy use, and component safety.

Our licensed technicians troubleshoot central air conditioners, ductless mini-splits, heat pumps, and SEER2-compliant systems using advanced diagnostic tools. We understand the urgency of AC failures in North Fulton, where high humidity and heat create discomfort and health risks. That's why we come to your Alpharetta home in fully stocked vehicles to fix most issues on the first visit.

We offer round-the-clock AC repair service throughout Alpharetta's 30004, 30005, 30009, 30022, and 30023 zip codes.

Call (404) 689-4168 for air conditioning repair service.

Common AC Problems We Fix

We fix common AC problems like frozen coils, electrical failures, refrigerant leaks, compressor issues, and poor airflow that lead to uneven cooling and high humidity.

Frozen Evaporator Coil

A frozen evaporator coil appears as ice buildup on the indoor unit and produces weak airflow with little cooling. This happens when restricted airflow prevents proper heat transfer, causing moisture on the coil to freeze.

Common causes of frozen evaporator coils include dirty air filters, blocked return vents, low refrigerant levels, or failed blower motors. Georgia's high humidity can make the issue worse, as excess moisture freezes quickly when airflow is limited.

Our technicians identify the root cause by testing static pressure, verifying blower motor operation, checking refrigerant charge levels, and inspecting ductwork for restrictions. Proper diagnosis prevents recurring freeze-ups and improves overall system performance.

Electrical Component Failures

The air conditioner's electrical components fail due to wear, heat exposure, or power surges that affect capacitors, contactors, and control boards. These regulate the compressor and fan motors, and failure in any of them can prevent the system from operating correctly.

Start and run capacitors store the electrical energy needed to initiate motor operation. When these fail, you hear clicking sounds without the system starting, or the AC breaker trips repeatedly. Contactors act as electrical switches controlled by the thermostat, and burned contacts prevent the outdoor unit from running.

We test capacitor ratings, inspect contactors for damage, and verify control board output using precision diagnostic tools. In some Alpharetta homes, wiring issues from improperly installed smart thermostats can also cause electrical malfunctions.

Refrigerant Leak Detection And Repair

Refrigerant leaks reduce cooling capacity, forcing the compressor to run continuously without achieving the set temperature. Low refrigerant causes lukewarm airflow, frozen coils, and eventual compressor failure if not addressed promptly.

Our experienced technicians use electronic leak detectors and nitrogen pressure testing to locate leaks in the evaporator coil, condenser, or refrigerant lineset. Once the leak is identified, we repair the affected section using proper brazing techniques, evacuate the system to remove moisture, and recharge it to manufacturer specifications using subcooling or superheat measurements.

We work with modern refrigerants like R-410A and R-32.

Compressor And Condensing Unit Issues

The compressor pumps refrigerant through the system and is one of the most expensive components to replace. In case of compressor failure, you will notice loud grinding noises that cause the breaker to trip immediately, or the outdoor unit will run without producing cold air.
The compressor fails due to hard start conditions, electrical problems, refrigerant flooding, or lack of maintenance. Our Alpharetta HVAC technicians test compressor windings for shorts or opens, verify voltage supply, and measure amp draw against manufacturer nameplate data.
The condensing unit can also fail due to worn fan motors, blocked coils, or failed capacitors. A non-operational condenser fan prevents proper heat rejection, causing the system to shut down. We check motor capacitors, inspect fan blades, and check airflow across the condenser coil to restore normal cooling operation.

Airflow And Humidity Control Problems

Inadequate airflow creates hot spots, increases humidity levels, and forces the system to run longer cycles without achieving the required cooling. This often results from clogged condensate drain lines, dirty blower wheels, or improperly sized ductwork.

A clogged condensate drain line can cause water backups that trigger float switch shutdowns or cause water damage. We clear drain lines using specialized tools and verify proper trap configuration to prevent airflow interference.

Blower motor issues, often identified by screeching sounds, can signal worn bearings, loose belts, or failing variable-speed modules. We inspect blower assemblies, clean fan wheels, and verify proper motor operation to restore full airflow.

Humidity problems also occur when the system short-cycles or doesn't run long enough to achieve proper moisture removal. We check the supply air temperature, refrigerant charge, and system capacity to confirm that your equipment is properly matched to your home's cooling needs.

Call (404) 689-4168 for an AC inspection in Alpharetta, GA.

Our AC Repair Process

At every service call, our technicians diagnose the issue, test components, explain what went wrong, provide flat-rate pricing, and fully restore your AC system.

Diagnostic & Evaluation

We start by checking your system to find the real cause of the problem. Our technicians arrive with professional tools like multimeters, thermal cameras, and pressure gauges. We ask what you've noticed, check thermostat settings, look for error codes, and inspect for visible issues such as frozen coils, water leaks, or tripped breakers. We also check whether the thermostat itself is causing the issue.

Component-Level Testing

We test each component to figure out what's working and what's not. Our AC technicians check capacitors, contactors, motors, refrigerant charge, and electrical readings. If the pressure is off, we look for leaks or blockages. We also test the expansion valve (TXV) and control board. This helps us understand whether your AC has airflow problems, electrical faults, or cooling issues.

Clear Explanation Of Findings

Once we've diagnosed the issue, we explain what went wrong, why it happened, and your repair options. We'll show you any damaged parts, explain normal wear patterns versus premature failures, and discuss whether additional issues may arise based on the system's age and condition. If there are multiple issues, we'll help you decide what to fix first based on cost, safety, and performance.

Flat-Rate Repair Quote

We provide you with upfront flat-rate pricing for AC repair before any work begins. The quote includes labor, parts, and any necessary components. We also explain any warranties and discuss financing if needed. If your system is old and repair costs are high, we'll help you weigh the pros and cons of replacement.

System Testing And Restoration

After repairs, we fully test your system. We check startup, cooling performance, airflow, refrigerant levels, and safety controls. We make sure your thermostat works properly and that everything responds as it should. Then we clean up the workspace and provide you with complete repair documentation.

Call (404) 689-4168 for AC repairs in Alpharetta, Georgia.

AC Repair Cost

AC repair costs depend on the type of issue, the system's age, and the parts required. Smaller repairs like replacing capacitors or contactors usually cost less than larger repairs involving compressors or refrigerant leaks. Pricing can also vary based on system efficiency, parts availability, and whether service is needed during evenings or weekends. Older systems may require hard-to-find parts or additional labor, which can affect overall cost.

We use upfront flat-rate pricing and explain repair options before work begins. All repairs are backed by a 100% satisfaction guarantee. If you are not satisfied with the service, we'll return to make it right at no extra charge.

Coupons & Special Offers

We offer seasonal coupons and limited-time promotions to help lower repair costs. Ask about current offers when you schedule service.
Financing Options

Financing is available for qualified customers to help manage unexpected repair expenses. Our team will review available options so you can choose what works best for your budget.

Join The Comfort Club

Enjoy priority service, repair discounts, annual tune-ups, and guaranteed same-day appointments (when you call before 2 p.m.).

Call (404) 689-4168 to schedule AC repair service.

Schedule AC Repair Today

Don't let AC failures compromise your family's comfort during North Fulton's hottest months. One Hour Heating & Air Conditioning provides fast, reliable air conditioning repair with transparent pricing and certified technicians.

Our licensed team diagnoses component failures accurately, explains findings clearly, and completes quality repairs that restore reliable cooling to your Alpharetta home.

Call (404) 689-4168 to book air conditioning repair service.

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We Have a Reputation

For Being Punctual, Friendly and Knowledgeable

4.8

(178761 reviews)

Denise Gordon

in the last week

“Most recent service. 2/10/26 Roy and the other technicians did an excellent job installing my new heating/ac system. Roy was patient answering my questions about what was going to happen. He is polite/ friendly and very knowledgeable. Roy worked well with the crew, they all had a specific job, and they communicated well to get things done. I am very pleased with the service, and my new heating system.”

Zach Treptau

2 weeks ago

“Pablo did an exceptional job with our new furnace installation. He was polite, informative, and thorough throughout the process. Everything was cleaned after the installation was finished as well. Northern One has a great feature where you get a text message when your tech is heading to your location, along with their picture and name so you know who is coming. They were also prompt in showing up and diagnosing the initial furnace issue and also with the installation of the new unit.”

Philip Martin

2 weeks ago

“Would highly recommend One-Hour. An unexpected problem with our air-conditioner was met with an excellent and problem solving response from One-Hour! Thank you Gary and Josh!! Thank you Binson for your professional service and communication while on-site, and your recommendations. So appreciate the service and value of One-Hour and consider them a trusted source. .”

Sue Lavey

2 weeks ago

“Oscar was an excellent technician .. very polite and courteous and very knowledgeable. The unit we had partially failed so he had to do a lot to get it backup and running. He always let us know what time he would arrive and would detail what needed to be done.✅ We definitely recommend Oscar and would use him again.”

glenn Brown

2 weeks ago

“Scotty performing a 1 week follow up of our complete hvac installation including new ductwork. Awesome company. All the installation crew were great to work with.”

Christina Principe

2 weeks ago

“We have been customers of One Hour Air for years. The company has been through some changes. Despite those changes in ownership we have found that their technicians are consistently friendly, patient, knowledgeable, and do follow up. During our most recent visit we had to replace the unit. Sheldon was so helpful and patient as he explained the pros and cons of our options and they were here doing the work just a couple of days later. The team was efficient and cleaned up well after each day of work. On the last day, Andrew and Carlos completed checking the ductwork, replacing the vents, and installing the insulation we'd also requested. What impressed most is, although it was late in the day, they took the time to walk us through the system, answer our questions, and make some little adjustments here and there that we requested for presentation's sake. We appreciate Sheldon who took the time to follow up the next week to check the work, answer some more of our questions, and update us on the status of our air filters. As a whole, technicians communicate very well from their anticipated arrival time, to the actual work, then the debrief of what was done. We have found that they work to standard despite the time. For customers who are more computer savvy, they are increasing their use of electronic contracts to include a virtual notary, same-day approval for loans (with decent rates), and the permitting of the work. My only recommendation to the company is to keep in mind that not everyone is technologically savvy and it may be helpful to have administrative staff available to provide guidance. Also, keep in mind that in these times of e-mail and telephone scams it would be very helpful to know to expect e-mails and what to expect of the links. Overall, we have been customers of One-Hour Air for years and expect to continue with them. We really appreciate the team and feel so much better about the air quality in our home. :)”

Dillon Mulkey

2 weeks ago

“Called a few months ago and they sent a guy named travis.. I DO NOT RECOMMEND Travis.. all he will do is Bang and hit your furnace then proceed to tell you oh well you're going to need a whole new furnace. While he's being rude as can be for no reason. Will compare his living to your living.. but he put a part on it made it work for the time being didn't put none of the panels back on or anything.. few months go by and the furnace is now blowing cold air. So we gave them another chance. They just sent a guy named Cory over and it took him 5 minutes to figure out was wrong . Ordered the part the next day and a guy named marquis came and put it on cleaned up everything . I just wanted to thank them for helping me out when Travis tried to make a dollar out of me. If they try to send you a guy named Travis just send him back where he came from.. I recommend Cory . Thank you sir”

Tiny M

2 weeks ago

“Repair service is great quick and helpful Nate was a very knowledgeable and listen to what questions I had. The sales reps are a bit different but nothing to hold against this company thanks for all your help and care. On one of the coldest weeks 🥶 before it became a problem.”

Luis V

2 weeks ago

“Joshua is a great man! He came to my house when he said he would and diagnosed and repaired my system. He didn't try and just sell me on getting a new system. He educated me on what my system is and advised me on what I'd be looking for in the future if I decided on a new system. I really appreciate that he took his time and made sure that my heat was working with the on coming cold front we got rolling in. I feel blessed to have met him, he is a great man! One Hour Heating and A/C have a huge asset in him and they will be the only company I contact for any HVAC concerns in the future. Do not hesitate to call on this company for any of your HVAC needs. Thanks again Joshua!”

Sushmita Shankar

2 weeks ago

“They were very prompt in replying back and were willing to come out the next day after the snow and bad weather and troubleshoot my heating system that had stopped working. Noah the technician was very knowledgeable and made sure all was working appropriately before he left. Which was like 4 hrs later. Reliable company. Would recommend them for sure!”

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