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 estimateFast, Reliable AC Repair Across Acworth
When your air conditioner quits in Acworth in July, you need a straight answer: most AC repairs in this area run $150 – $650, and we can usually have a technician at your door the same day you call. Cold Harbour Heating and Air Marietta has worked on the exact mix of homes you find across Acworth, from 1970s ranches near Lake Acworth to the 1990s two-stories in Brookstone. Call (762) 240-5599 and a live person answers, 24 hours a day. No phone tree, no waiting until morning.
Why Cold Harbour Heating and Air Marietta Is Acworth’s Preferred AC Repair Company
We’re an independently operated member of the Kingswell network, founded in 2003. That matters in Acworth because the housing stock here demands a technician who has seen it all. A 1972 split-level off Cherokee Street with its original air handler is a different job from a 2015 Craftsman off Baker Road, and we send crews who understand both. Victor Mancini, who leads our team, has built our reputation on one simple rule: put the price in writing before any tool comes out, and back every repair with a written 365-day guarantee. If the fix fails inside a full year, we come back at no charge.
Our approach follows The Kingswell Way: say the price before the work, show up in the window given, leave the place cleaner than found, put the guarantee in writing, and come back if it fails. Homeowners in Acworth have told us the same story for years: another company never showed, or quoted one price and charged another. We don’t operate that way. The written price is the price.
Styles & brands we work with







AC Service in Acworth
AC Installation in Acworth starts with good maintenance-our AC Service is a preventive visit that catches small problems before they become a $600 repair in the middle of a heat wave. It runs $80 – $200 and includes a full inspection, cleaning of the condenser coil, checking refrigerant levels, testing capacitors and contactors, and measuring the temperature drop across the evaporator coil. Given Acworth’s long humid summers where systems run hard from May through September, an annual service visit is cheap insurance against a breakdown when you need the system most. We write up what we found in plain English, so you know exactly what is healthy and what is on borrowed time.
A Written Report of What We Actually Found
After every AC service in Acworth, you get a written report. It lists refrigerant pressures, amp draws on the compressor and fan motor, temperature split, and the condition of the capacitor. Our technicians are not paid on what they sell, so the report tells you what needs attention and what can wait. No upsell pressure, no scare tactics.
What A Service Visit Catches Before It Fails
Weak capacitors and dirty coils are the two most common findings in Acworth homes. A capacitor that is drifting out of tolerance will take the compressor down with it eventually, and a coil caked with Georgia pollen and cottonwood makes the whole system work harder than it should. Both are far cheaper to address during a service call than after a failure on a 95-degree afternoon.
AC Unit Repair in Acworth
AC Unit Repair in Acworth means fixing the outdoor condenser, the indoor air handler, or the refrigerant lines connecting them, and it typically runs $150 – $650 depending on what has failed. A blown capacitor is on the low end. A failed compressor is on the high end and often signals that replacement makes more sense. We diagnose first, explain the problem in plain language, and hand you a written price before any work starts. If the repair is done right, it is covered for 365 days by our Done Right Promise, in writing.
Capacitor and Contactor Repairs
Capacitors and contactors are the electrical workhorses of your AC unit, and they fail more often in Acworth because our summers push them hard. A failed capacitor often shows up as a system that hums but won’t start, or a condenser fan that won’t spin. This is usually a same-day repair in the $150 – $250 range, parts and labor included.
Compressor and Fan Motor Repairs
A seized compressor is the most expensive repair in this category, typically $400 – $650 or more, at which point we’ll walk you through whether a new system is the smarter route. Fan motor failures are more common and less costly, usually $250 – $400. If you have a Trane, Lennox, Goodman, or Rheem unit, our technicians work on all of them, so the brand doesn’t dictate whether we can help.
Trusted Brands We Service in Acworth
We service all major residential brands, including Trane, Lennox, Goodman, and Rheem, and our technicians are trained to work on whatever system is already in your Acworth home. When a repair needs a part, we keep common components stocked locally so we’re not waiting on a distributor in Atlanta. If your condenser needs a specific capacitor or contactor, our Acworth runs are planned to get it done the same day whenever possible. Whether it’s a Trane heat pump near Lake Allatoona or a Goodman split system off Bells Ferry Road, we know the equipment.
See the difference
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After
Before
After
Before
AfterCommon AC Repair Problems We See in Acworth Homes
- Frozen evaporator coils from undersized flex duct in 1990s-era attic installations: Homes built in Brookstone and Governors Towne Club during the 1990s boom often got flex duct runs that were too small for the system. During peak summer heat, the restricted airflow freezes the coil solid, and the house warms up even though the thermostat says it’s cooling.
- Failed capacitors on 20-plus-year-old R-22 condensers: Acworth has a lot of original equipment from the 1980s and 1990s still limping along. When the July heat hits and the system runs nonstop, those old capacitors cook off. The system might have been fine in June and dead by August.
- Heat pump defrost board faults during cold snaps: The mild but damp winters around Lake Acworth create conditions where heat pumps go into defrost mode more often than in drier climates. When the defrost board fails, the emergency heat strips run constantly, and the electric bill spikes.
- Refrigerant leaks on aging systems: Older R-22 systems in Acworth’s 1970s ranches often develop slow leaks at the Schrader valves or evaporator coil. The system still runs, but the cooling gets weaker each season, and homeowners notice the house never quite reaches the set temperature.
Pricing for AC Repair in Acworth, GA
Straight numbers for Acworth, because you deserve to know before you call:
| Service | Typical Price Range |
|---|---|
| AC Repair | $150 – $650 |
| AC Unit Repair | $150 – $650 |
| AC Service | $80 – $200 |
What moves the price: a capacitor replacement is $150 – $250, a fan motor runs $250 – $400, and a compressor can hit $400 – $650 or beyond, at which point replacement becomes the conversation. Every quote is in writing before the work starts, and it does not change at the door. Call (762) 240-5599 for an exact quote. Estimates are free.
We Also Serve Cities Near Acworth
Our service area reaches beyond Acworth to the surrounding metro communities. We run AC Repair calls in Kennesaw, Woodstock, Marietta, and Holly Springs, so if you’re just over the Acworth line, we still cover you. For a full look at our work in this area, see our AC Repair in Acworth page or give us a call directly.
Serving Acworth, GA - Our Local Coverage Area
We’re based in the Acworth area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About AC Repair in Acworth
Nighttime freezing is almost always an airflow problem, not a refrigerant problem. During the day, the attic is hot, so the flex duct heats up and expands slightly. At night, the attic cools, the duct constricts, and if the ductwork is already undersized, as we find in many 1990s-era Acworth homes, the airflow drops below the point where the coil can shed its frost. The coil freezes over a few hours, and by morning the house is warm. The fix is correcting the ductwork, not adding refrigerant. If this sounds like your house, call (762) 240-5599 and we’ll measure the airflow and static pressure to confirm.
The signs are consistent: rooms at the end of the runs never cool as well as the rooms near the air handler, the system runs long cycles without reaching the thermostat setting, and you hear whistling or a high-pitched air noise at some registers. In Brookstone and Governors Towne Club homes specifically, we regularly find 10-inch flex duct feeding rooms that need 12-inch, and flex runs that have been crushed by stored boxes or cable installers in the attic. A static pressure test tells us definitively. Call (762) 240-5599 for a free estimate on a ductwork evaluation.
R-22, often called Freon, was the standard refrigerant until 2010, and many Acworth homes from the 1970s through the 1990s still run on it. You can still repair an R-22 system, but the refrigerant itself is now produced only from recycled stock, which makes recharges increasingly expensive, often $100 – $200 per pound or more depending on how much the system needs. If your system has a leak and runs on R-22, we’ll give you an honest look at whether a recharge makes sense or whether the money is better spent toward a new system. The decision is yours, and the numbers will be in writing either way. Call (762) 240-5599 for a free assessment.
Yes, and in Acworth’s 1960s and 1970s ranch homes, a ductless mini-split is often the most practical option when the original ductwork is inadequate or non-existent. Mini-splits run refrigerant lines through a small exterior penetration rather than requiring attic duct runs, so they work well in homes where the attic is tight or the original ducts were never properly designed. They also give you zone control, so you’re not cooling empty bedrooms. We install and service major mini-split brands, and the work carries the same written 365-day guarantee as every repair. Call (762) 240-5599 to talk through whether a mini-split fits your home.
Replacing a capacitor, contactor, fan motor, or other component-level repair does not require a permit in Acworth. A full system replacement, where the condenser and air handler are being changed out, does require a mechanical permit through Cobb County, and we handle the permit paperwork as part of the installation. If you’re unsure what category your job falls into, call (762) 240-5599 and we’ll tell you plainly whether a permit applies before we schedule anything.
Acworth’s patchwork of housing stock makes this one of the more interesting repair markets in the northwest metro. We regularly run calls from a 1964 ranch off Cherokee Street in the morning to a 2008 two-story in the Governors Towne Club in the afternoon. The older home likely has an R-22 system with original copper lines, while the newer one might have a high-efficiency heat pump with a communicating thermostat. The diagnostic approach is different, and a technician who only knows one era of equipment will misdiagnose the other. Our crews train on both, which is why a routine AC Repair call in Acworth often begins with us asking the age of the home, not just the symptoms.
Last August we got a call from a 1993 two-story off Cedarcrest Road in the Brookstone area. The homeowner had just replaced their compressor two summers ago, but the coil kept freezing. Our tech opened the attic and found the flex duct runs were crushed in three places and undersized for the 3-ton unit. We re-supported the ducts, checked the static pressure, and confirmed the system was moving the right CFM before recharging the refrigerant. No ice, no callback. That is the difference between fixing the symptom and fixing the cause, and it’s what we do on every job in Acworth.
When you call Cold Harbour Heating and Air Marietta for AC repair in Acworth, you get a live person on the phone, a firm arrival window, a written price before any work starts, and a guarantee that lasts 365 days. If the repair fails within that year, we come back and make it right at no charge. It’s on paper, signed, before the technician leaves your driveway. That’s The Kingswell Way, and it’s the only way we work. Call (762) 240-5599 for a free estimate today.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Marietta, serving Acworth and the surrounding metro communities since 2003.