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Before
AfterAC Installation in Marietta, GA
AC installation in Marietta typically runs between $5,800 and $12,400 for a full system replacement, and most jobs are completed in a single day. That price includes the outdoor condenser, indoor air handler or coil, refrigerant lines, and the labor to put it all together properly. We’re Halden Heating and Air Marietta, and we’ve been providing AC Repair & Installation Near Me in Marietta, GA across Cobb County since 2004.
If your current unit is limping along, or if you’re building new construction anywhere from the Historic Marietta Square out to East Cobb, West Cobb, or the Powder Springs corridor, we handle the full scope of AC installation work. You’ll get a written price before we touch a single tool, a live arrival time you can track on your phone, and a real person answering when you call (229) 514-0545. This is part of our larger AC Repair & Installation service, so whether you need a repair or a full replacement, the process starts the same: call, book online, get a straight answer.
We’re independently owned and operated under the Relay Home Co. network, which means you get the accountability of a local shop with the operational standards of a modern service company. Andre Fuller leads our Marietta team, and every job is backed by the 365-Day Done Right Promise: if it’s not done right, we make it right, in writing, for a full year.
When You Need AC Installation
Not every AC problem means replacement. But after 20-plus years of working on Marietta systems, here are the scenarios where installation is the honest answer, not an upsell:
- Your compressor died and the unit is 12+ years old. Replacing the compressor on an aging system is often a $2,500 to $3,800 repair on a unit that’s already past its expected lifespan. In most cases, the money is better spent on a new system with a fresh warranty.
- Your system uses R-22 refrigerant (Freon). R-22 has been phased out of production, which means topping off a leaking R-22 system can run $150 to $300 per pound, and the supply keeps shrinking. New systems run on R-410A, which is cheaper to recharge and far easier to source.
- Repair costs are stacking up. If you’ve spent more than $800 on repairs in the last two years and the unit is still struggling, the math usually favors replacement, especially with Marietta’s humidity putting constant strain on older coils.
- Uneven cooling from room to room. This is often a sign of an undersized or poorly matched system. We see it regularly in older East Cobb homes where a previous owner cut corners on sizing. A properly sized installation fixes the temperature spread.
- Your unit was undersized from day one. Marietta summers push 95°F with high humidity. A unit that’s too small for the square footage never keeps up. A Manual J load calculation tells us what your home actually needs.
- You’re planning to stay in the house 5+ years. If you’re not moving, a high-efficiency installation pays for itself through lower Georgia Power bills, especially with a SEER2 rating of 16 or higher.
Our AC Installation Process
Here’s exactly what happens when you book an AC installation with us in Marietta. No vague timelines, no surprises at the door:
- Book online or call (229) 514-0545. A live person answers, day or night. We ask a few questions about your home’s square footage, your current unit, and what’s going on with it. Then we schedule a site visit.
- We arrive on time, and you can track us to the door. You get a live arrival time, not a four-hour window. Our technician is background-checked, uniformed, and drives a marked Halden vehicle.
- We perform a full load calculation and system assessment. We measure square footage, check insulation levels, count windows, assess duct condition, and look at your existing electrical setup. This tells us the right size unit, not a guess. Undersized and oversized systems both fail early, and in Marietta’s humid climate, oversizing causes real mold and moisture problems we’d rather prevent than walk away from.
- You get a written quote with line-item pricing. Before any work starts, you’ll see the exact cost of the equipment, the labor, any duct modifications, and the refrigerant. You approve the price in writing, and that price doesn’t change.
- We install the system, usually in one day. Full replacements typically run 4 to 8 hours depending on the scope. We handle the old unit removal, refrigerant recovery, new equipment placement, and any needed modifications to the plenum or electrical feed.
- We test, photograph, and walk you through the work. You’ll see before-and-after photos of the installation, we’ll walk the system thermostats with you, and we register your equipment warranty before we leave. Every job carries the 365-Day Done Right Promise in writing.
AC Installation Pricing in Marietta
Here’s what AC installation actually costs in Marietta right now, based on the jobs we’ve priced and installed across Cobb County in the last 24 months. These are full system replacements, including labor, refrigerant, and the removal of your old unit:
- Entry-level 14 SEER2 single-stage system: $5,800 – $7,200. Good for smaller homes and budget-conscious replacements. Brands like Goodman and Rheem dominate this tier.
- Mid-range 16 SEER2 two-stage system: $7,500 – $9,800. The sweet spot for most Marietta homes. Better humidity control, quieter operation, and meaningful energy savings. We commonly install Lennox and Trane equipment in this range.
- High-efficiency 18+ SEER2 variable-speed system: $10,200 – $12,400. Top-tier comfort, near-silent operation, and the lowest monthly bills. These systems shine in Marietta’s humid summers because they run longer at lower speeds, pulling more moisture out of the air.
What moves the price: the size of your home (a 3,000-square-foot East Cobb house needs more tonnage than a 1,200-square-foot ranch near the Square), the condition of your ductwork (we’ll tell you if it needs sealing or replacement before you commit), your electrical panel (some older homes need a breaker or wiring upgrade), and whether you’re replacing just the AC or the entire system including a furnace.
Every quote we write in Marietta is free, and it’s yours to keep. We don’t pressure you to sign on the spot. Call (229) 514-0545 and we’ll schedule a site visit, do the load calculation, and hand you a written price. If you don’t use us, you’ll still have a solid benchmark for every other quote you get.
FAQs – AC Installation
How much does AC installation cost in Marietta?
AC installation in Marietta typically runs between $5,800 and $12,400 for a full system replacement, including the condenser, air handler or coil, refrigerant, labor, and old-unit removal. Entry-level 14 SEER2 systems start around $5,800, mid-range 16 SEER2 systems run $7,500 to $9,800, and top-tier variable-speed systems top out near $12,400. The exact number depends on your home’s square footage, duct condition, and the equipment you choose. Call (229) 514-0545 for a free written quote, no obligation.
Is it cheaper to repair or replace my AC?
If your system is under 8 years old and the repair is under $800, repairing usually makes more sense. If the unit is over 12 years old and the repair involves the compressor or a refrigerant leak, AC Replacement is typically the better financial decision, especially with R-22 refrigerant becoming scarce and expensive. We’ll give you both options with real numbers, in writing, and let you decide. Estimates are free.
Can you install my new AC the same week?
In most cases, yes. We keep a dedicated installation crew for Marietta and Cobb County, and during the shoulder seasons (spring and fall), we can often schedule installation within 3 to 5 business days of your site visit. Peak summer demand can stretch that to 7 to 10 days. Call (229) 514-0545 and our dispatcher will give you the first available slot while you’re on the phone.
What size AC unit does my Marietta home need?
Rule of thumb is roughly 1 ton of cooling per 500 to 600 square feet, but that’s a starting point, not a final answer. The real number comes from a Manual J load calculation that accounts for your home’s insulation, window count, orientation, ceiling height, and Marietta’s specific climate data. We run that calculation on every installation, not as an add-on, but as the standard. Installing the wrong size is the fastest way to high bills and early failure, so we don’t guess.
Ready to get a real price on AC installation in Marietta? Call (229) 514-0545 now and you’ll talk to a live person, not a voicemail tree. We’ll schedule your free site visit, you’ll get a written quote, and if we do the job, it’s covered by the 365-Day Done Right Promise. You can also visit our homepage to book online or learn more about how we work.
Written by Andre Fuller, Owner at Halden Heating and Air Marietta, serving Marietta.