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 estimateStyles & brands we work with
See the difference
Before
After
Before
After
Before
AfterAC Repair in Marietta, GA
When your air conditioner stops cooling on a July afternoon in Marietta, you need a straight answer: what’s wrong, what it costs, and when someone can fix it. Most AC Repair & Installation Near Me in Marietta, GA services run between $180 and $650, and we can usually have a technician at your door the same day you call. Cold Harbour Heating and Air Marietta has been repairing air conditioners in Cobb County since 2003, and we back every repair with a written 365-day guarantee. Call us at (762) 240-5599 and you’ll speak to a live person, not a voicemail tree.
This page covers the AC repair side of our AC Repair & Installation in Marietta work. If you’re weighing repair against replacement, that parent page walks through both paths. Here, we focus on getting a broken system cooling again.
“AC repair” means restoring an existing air conditioner to working order, whether that’s a capacitor swap, a refrigerant recharge, a condenser fan motor replacement, or a compressor diagnosis. It does not mean installing new equipment. And in our book, it also means handing you a written guarantee before we leave, not a verbal promise. That’s the home standard we’ve held since Victor Mancini started this company more than two decades ago.
When You Need AC Repair
Some failures announce themselves with a bang. Others creep in over weeks of uneven cooling. Here are the signs Marietta homeowners most often call us about:
- Warm air blowing from the vents while the thermostat reads 72. This usually points to a refrigerant leak or a failing compressor, and in Marietta’s humidity it often shows up first on the north-facing side of the house where the unit runs hardest in late afternoon.
- The outside unit won’t turn on. On East Cobb lots with heavy tree cover, we frequently find blown capacitors after storms. It’s a $150 – $300 fix when caught early, and a bigger problem if ignored.
- Short cycling – the system kicks on, runs five minutes, shuts off, repeats. We see this in older Ranch-style homes off Whitlock Avenue where undersized ductwork or a dirty evaporator coil makes the unit work against itself.
- Ice on the refrigerant lines or on the indoor coil. That ice is almost always low refrigerant or restricted airflow, not the AC “working too well.” Running it frozen can destroy a compressor in days.
- Water pooling around the indoor unit. A clogged condensate drain line is common in Marietta’s clay soil areas where dust and debris work their way into the system. It’s usually a $120 – $200 fix, but left alone it can damage drywall and flooring.
- A grinding or squealing noise when the system starts. That’s often a worn blower motor or fan belt, and it only gets more expensive the longer it runs.
If any of these sound familiar, call (762) 240-5599. We’ll talk through what you’re seeing and tell you honestly whether it needs a technician today or can wait a day.
Our AC Repair Process
We follow the same five-step process on every repair call in Marietta. No shortcuts, no surprises.
- You call and a person answers. Day or night, weekends, holidays. We take your information, ask what the system is doing, and give you a firm arrival window before we hang up.
- A background-checked technician shows up in that window. Uniformed, with a marked vehicle, trained on Trane, Lennox, Goodman, Rheem, and five other major brands. You’ll know exactly who’s at your door.
- Diagnosis comes first, and it’s written down. The technician inspects the system, finds the fault, and writes up the findings in plain English. No work starts until you’ve seen the paper.
- You get a written price before a single tool comes out. That price includes parts and labor. It does not change at the door. If you approve it, we fix the system then and there. If you decline, you owe us nothing for the diagnosis and we leave your home as we found it.
- The repair is guaranteed in writing for 365 days. Before the technician leaves, you receive a written guarantee. If that same repair fails within a year, we come back and correct it at no charge. That’s the Kingswell Way, and it’s the same on every job, no matter how small.
AC Repair Pricing in Marietta
Here’s what Marietta homeowners can expect to pay for common AC repairs. These are real ranges from the jobs we do in this market, parts and labor included:
- Capacitor replacement: $150 – $280
- Condensate drain line clearing: $120 – $200
- Refrigerant recharge (topping off the cooling fluid your AC needs to run): $200 – $450, depending on refrigerant type and how much is needed
- Condenser fan motor replacement: $300 – $550
- Blower motor replacement: $400 – $750
- Thermostat replacement or upgrade: $120 – $350
- Compressor replacement: $1,200 – $2,400, depending on brand and system age
What moves the number? Age of the system, brand (a Trane or Lennox part tends to cost more than a Goodman equivalent), whether we’re working on a rooftop unit or a ground-level condenser, and how long the technician needs to access the fault. A 20-year-old Rheem in a tight West Cobb attic will take longer than a 6-year-old unit on a concrete pad in a Powder Springs backyard.
Every repair starts with a free estimate. The technician diagnoses what’s wrong and hands you a written price before any work begins. You’ll never get a bill you didn’t agree to first. Call (762) 240-5599 to schedule, and we’ll confirm the visit window when you’re on the phone.
Repair or Replace?
We get this question on maybe a third of the repair calls we run in Marietta. Here’s the straight version: if the repair costs more than about a third the cost of a new system, and the unit is past 12 years old, replacement usually makes more sense. A $1,800 compressor replacement on a 14-year-old Lennox is a gamble, not a plan. Put that money toward AC Replacement instead. We’ll tell you this even when it means we make less money on the call, because a written guarantee only matters if the equipment is worth saving.
But plenty of repairs make complete sense. A capacitor or a contactor or a drain line fix on a 7-year-old unit? That’s a repair, not a replacement. We’ll give you the honest answer either way, and never push you toward equipment you don’t need.
FAQs – AC Repair
How much does AC repair cost in Marietta?
Most AC repairs in Marietta run between $180 and $650, with the most common fixes – capacitors, drain lines, contactors – landing in the $120 – $300 range. Bigger jobs like compressor replacement can reach $2,400. We give you a written price before any work starts, so there are no surprises. Call (762) 240-5599 for a free estimate.
Can Cold Harbour Heating and Air repair my AC the same day?
In most cases, yes. We keep our Marietta schedule open for same-day repair calls, especially during the hot months from May through September. A live person answers the phone 24/7, and we’ll give you a firm arrival window when you call, and we stick to it. Call (762) 240-5599 and we’ll tell you exactly when to expect us.
Is it cheaper to repair or replace my air conditioner?
That depends on the age of your system and the failed part. If the repair costs less than a third of replacement and the unit is under 10 years old, repair is almost always the better call. On older units with expensive failures, replacement makes more financial sense. We’ll help you run the numbers honestly before you spend anything.
Do you guarantee AC repairs?
Yes, in writing. Every repair from Cold Harbour Heating and Air Marietta includes a 365-day written guarantee. If the same repair fails within that year, we come back and fix it at no charge – no argument, no fine print. This is the Kingswell Way, and it applies to every job, from a small Capacitor Replacement to a full compressor change.
What brands of air conditioners do you repair?
Our technicians are trained to service nine major residential HVAC brands, including Trane, Lennox, Goodman, and Rheem. The technician who arrives at your door can work on your existing system, whatever the label says. No “we only fix what we sell” stories.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Marietta, serving Marietta.