AC repair
Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateGoodman AC Repair in Marietta: What to Know First
Goodman AC repair in Marietta typically runs $150 – $650, and most calls are diagnosed and fixed in a single visit. We’re an independent Goodman service provider – not a manufacturer-authorized dealer – which means we make decisions based on what’s right for your system and your budget, not on what a warranty department tells us to do. If your Goodman is blowing warm air, short-cycling, or making a noise it didn’t make last summer, you’ll want a technician who knows which Goodman models show up in Cobb County homes and what typically fails on them. That’s where we come in. Call (478) 662-5175 and tell us what it’s doing, and we’ll tell you what it needs – no guesswork, no upsell.

Key Takeaways
- Goodman repairs in Marietta usually fall between $150 and $650, depending on the part and the model
- Most Goodman failures we see are capacitors, contactors, fan motors, and refrigerant leaks – all repairable same-day
- Every repair gets a written price before work starts and a written guarantee after it’s done
- We service all Goodman lines: GSX, GSZ, GLX, Amana-branded Goodman systems, and older Janitrol-era units
- A Goodman that’s over 12 years old and needs a compressor is usually a replace, not a repair
How Goodman Products Fail – and How We Fix Them
Goodman builds honest, affordable equipment. No one calls them fancy, but a Goodman installed correctly and maintained once a year will hold its own against any brand on the market. What we see in Marietta, though, is that the heat and humidity here work certain parts harder than they’d care to admit. Here’s what actually fails on Goodman units in our area, and what we do about it.
- Bad capacitors on GSX13 and GSX14 condensing units. This is far and away the most common Goodman failure we see. Capacitors give the compressor and fan motor the electrical shove they need to start, and Georgia heat cooks them. A hard-start kit usually isn’t on the factory build, so we see these fail at the 5 – 7 year mark. The fix: replace the capacitor, test the motor with the new part in place, and check for any other electrical stresses. Typical cost: $180 – $320.
- Stuck contactors on GSZ heat pumps and straight-cool GSC units. The contactor is the switch that turns everything on when the thermostat calls for cooling. In Marietta humidity, the contact points pit and corrode. You’ll notice the outside unit humming but the compressor not running, or the system running even when the thermostat says off. We replace the contactor, clean the connections, and test the cycle. Typical cost: $150 – $280.
- Refrigerant leaks at the Schrader valve cores or coil bends on split systems. Goodman coils are generally good, but any system with a braze joint is a leak risk. On older units with R-22, a leak often pushes homeowners toward a system replacement, because R-22 costs more than liquid gold these days. On newer R-410A units, we leak-test, replace the valve core or braze the pinhole, and recharge. Typical cost: $250 – $550, depending on refrigerant type and amount.
- Condenser fan motors on GLX and older Janitrol units. A condenser fan motor that’s been running through Cobb County dust and humidity will eventually seize or wear its bearings. Symptom: the outside unit trips a breaker or runs hot but the compressor is fine. We replace the motor with a factory-spec or better aftermarket unit, not a cheap universal that spins at the wrong RPM. Typical cost: $280 – $450.
- Drain pan and evaporator coil corrosion on horizontal attic installs. Plenty of Marietta homes have air handlers in the attic, and the horizontal drain pan is the quiet failure point. The pan rusts, clogs, or cracks, and you get water damage in the ceiling or a float switch that kills the system. We replace the pan, clear the condensate line, and test the float. Typical cost: $200 – $400.
Styles & brands we work with







Our Goodman AC Repair Process
We treat every Goodman job like it’s the only job of the day. Here’s how it goes.
- 1
You call, a person answers. Not a phone tree. You tell us the model number if you have it – it’s on the data plate on the side of the outside unit – and what the system’s doing.
- 2
We send a technician you’ll know by name. Before the visit, you get the tech’s name and photo sent to you. At the door, they show a photo ID badge. If anyone else shows up, that visit’s on us and we make it right – that’s the Threshold Verified standard.
- 3
Diagnostics first, always. The tech starts by reading the data plate, then runs electrical tests, checks refrigerant pressures, and inspects the air handler. On a Goodman, we’re checking for the capacitor and contactor issues covered above before anything else.
- 4
You get a written price before work starts. No exception. If the part is OEM (factory Goodman) we tell you that. If a quality aftermarket option will do the same job for less, we tell you that too, and you decide. We never start a repair without your written approval.
- 5
The repair, the test, the cleanup. We make the fix, cycle the system, verify airflow and temperature split, and clean up the work area like we found it.
- 6
You get a written guarantee. Every repair we make is covered by our 365-Day Done Right Promise. If it fails within the guarantee period, we return free of charge. No argument, no invoice.
See the difference
Before
After
Before
AfterWhat Goodman AC Repair Costs in Marietta
Goodman repair costs in Marietta stay predictable because Goodman parts are widely available and the equipment is straightforward to fix. Here are the scenarios we see most often, with parts and labor included:
- Capacitor replacement: $180 – $320
- Contactor replacement: $150 – $280
- Condenser fan motor replacement: $280 – $450
- Refrigerant recharge (R-410A): $250 – $550, depending on system size
- Thermostat replacement or repair: $150 – $350
- Compressor replacement: $1,200 – $2,400 (on a Goodman, we’ll usually tell you if replacement makes more sense)
What moves the price: whether the part is OEM or quality aftermarket, how hard the unit is to access (attic installs take longer), and whether the refrigerant is R-22 (older systems) or R-410A (newer). Every estimate is free, and the price you’re quoted is the price you pay. Call (478) 662-5175 and we’ll give you the straight answer.
Why Marietta Homeowners Call Brandt HVAC Co Marietta for Goodman Work
Devin Marlowe has been working on HVAC systems across the South for nearly three decades, and he’s logged more service calls in the Kennesaw Avenue corridor near Marietta Square than he can count. He knows the older homes in that part of town, the ones with attic air handlers and tight electrical panels and the odd duct run that makes no sense until you’ve been in twenty houses just like it. When we work on a Goodman, we’re not figuring it out from a manual – we know the GSX line, the GSZ heat pumps, the GLX units, and we know what breaks on each of them in Cobb County heat. We also service Carrier, Trane, and Lennox, so when a Goodman owner asks whether this is the time to switch brands, we give an honest answer, not a brand pitch. Every tech is background-checked and identity-verified under the Threshold Verified standard, and every job gets a written price before any work starts. If it’s not done right, we make it right – for 365 days.
FAQs
No. Goodman’s factory warranty covers parts only, and only when the failure qualifies under the warranty terms – not the labor to diagnose and install the replacement part. Labor on a warranty part replacement still runs $150 – $450 in Marietta. We handle warranty paperwork and will tell you upfront if a part is covered; we just don’t bill Goodman directly, so you pay for labor and we help you file for the part.
Most Goodman repair calls in Marietta are answered same-day or next-day. A live person answers our phone 24 hours a day, seven days a week, including weekends and holidays, so if your system dies on a Sunday in July, you’re not leaving a voicemail and hoping. Call (478) 662-5175 and you’ll talk to a person who can schedule the visit.
It depends on the part. For capacitors and contactors, quality aftermarket brands like Mars or Supco are just as reliable as factory parts and usually cost 20 – 30% less. For compressor replacements and control boards, we recommend OEM Goodman parts, because those are too expensive and too system-specific to gamble on a universal fit. We’ll show you both options with real prices and let you decide.
On a Goodman, that usually means a refrigerant leak, a failed compressor, or a reversing valve stuck on a GSZ heat pump. Warm air with a running condenser narrows it down fast, but you need a technician to put gauges on the system to say which one it is. We diagnose this on nearly every visit – call (478) 662-5175 for a free estimate.
If your Goodman is over 12 years old and the compressor has failed, replacement usually makes more sense than putting $2,000 into a system that may need another repair next year. A new Goodman or Amana system in Marietta runs $3,500 – $7,500 installed, and we’ll give you a written price and a set install date before you ever sign anything. We’ll tell you if repair is still the smarter money; we’re not trying to sell you a system you don’t need.
If your Goodman is acting up and you want a straight answer from someone who’s seen it before, call Brandt HVAC Co Marietta at (478) 662-5175. Free estimates, written prices, and a person on the phone every time.
Written by Devin Marlowe, Owner, Brandt HVAC Co Marietta at Brandt HVAC Co Marietta, serving Marietta and nearby areas.