Furnace & heating
AC repair
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 Installation Across Fair Oaks
AC installation in Fair Oaks typically runs $3,500 to $7,500 for a complete system replacement, and most jobs are finished in a single day. If you’re reading this because your old unit finally quit or you’re tired of muggy nights in a 1970s split-level, we can help. Cold Harbour Heating and Air Marietta serves Fair Oaks with straight answers, written pricing, and crews who know the difference between a ranch on Hicks Road and a cul-de-sac off Powder Springs. Call (762) 240-5599 and a live person answers, day or night.
Why Cold Harbour Heating and Air Marietta Is Fair Oaks’s Preferred AC Installation Company
Fair Oaks doesn’t have its own building department, and that matters more than most homeowners realize. Without municipal code enforcement on HVAC permits, plenty of Fair Oaks homes are running units that were eyeballed, not calculated. Victor Mancini and our team walk into houses off Austell Road and Brownsville Road where the condenser is two tons too big or the return drop is starving the blower. We fix that with a proper Manual J load calculation before we ever quote a price.
Our Fair Oaks customers tell us the same thing: they want a company that shows up when it says it will and doesn’t add a surprise line item at the end. That’s The Kingswell Way, and it’s been our standard since 2003. The written price goes in your hand before a single tool comes out, and the 365-Day Done Right Promise goes in writing too. If something isn’t right within a full year, we come back and make it right at no charge. No fine print, no argument.
We’re independently owned and operated as part of the Kingswell network, which means we answer to Fair Oaks homeowners, not a corporate office in another state. Our technicians are background-checked and uniformed, trained on Trane, Lennox, Goodman, and Rheem, among others. When you call (762) 240-5599, a live person picks up, 24 hours a day, 7 days a week.
Styles & brands we work with







Furnace Installation in Fair Oaks
Furnace installation in Fair Oaks runs $3,500 to $7,500, and it’s the right move when your heat exchanger is cracked, your unit is past 20 years old, or your current furnace can’t keep a 1960s ranch warm without cycling constantly. Many Fair Oaks homes still run the original furnace from when the house was built, and by now that equipment is well past its design life.
Matching Furnace Size to Fair Oaks Homes
An oversized furnace short-cycles, which means it blasts heat, shuts off, and repeats. That wears out the heat exchanger and leaves rooms uneven. Our load calculation accounts for your home’s actual footprint, window orientation, and insulation, not a rule-of-thumb guess.
Fuel Options for Rural Fair Oaks Lots
Lots off Shipp Road and along the western edges of Fair Oaks often lack natural gas service. Propane furnaces and heat pump systems are both workable options, and we’ll walk you through the efficiency numbers for each before you spend a dime.
HVAC Installation in Fair Oaks
HVAC installation in Fair Oaks bundles your heating and cooling into one matched system, typically $3,500 to $7,500 depending on efficiency rating and ductwork condition. This is the smart path for Fair Oaks homeowners replacing both a furnace and an AC, or anyone whose ductwork needs sealing and re-insulation as part of the job.
Correcting Ductwork Before Equipment
On a split-level off Hicks Road, our crew replaced a 22-year-old Goodman condenser where the compressor had seized after a weak capacitor went unnoticed. The homeowner wanted to condition a detached workshop too, so we ran a Manual J load calculation for the whole property, sized a Daikin heat pump at 3 tons with a matching air handler, and corrected the return drop that was choking airflow at 0.9 inches of static pressure. We also sealed the crawlspace ductwork on the west side of Austell Road where moisture had rotted the insulation, then verified the new system’s refrigerant charge with a digital manifold before the first 95-degree day. That’s what a real HVAC installation in Fair Oaks looks like.
When One Contractor Handles Both Sides
Splitting heating and cooling between two contractors creates finger-pointing when something goes wrong. One company, one written guarantee, one point of contact. That’s how we handle HVAC installation for Fair Oaks homeowners.
Trusted Brands We Service in Fair Oaks
Our technicians are trained on nine major residential HVAC brands, and for Fair Oaks customers we keep common parts in local stock: Trane capacitors and contactors, Lennox control boards, Goodman compressors, Rheem fan motors. That means fewer days waiting on a warehouse shipment when your AC goes down in August. Whether you need a full AC Installation or a brand-specific repair, the technician who shows up at your Fair Oaks door already knows the equipment inside and out.
Common AC Installation Problems We See in Fair Oaks Homes
- Undersized returns on original 1960s – 1980s ductwork. New high-SEER2 condensers pull more air than old units, and the existing return drops can’t keep up. That starves the system, trips high-pressure switches, and kills compressors years before their time.
- Crawlspace ducts on the west side of Austell Road absorbing moisture. Homes in that stretch of Fair Oaks often have ductwork running through damp crawlspaces. Install a new AC without addressing that, and you’ll blow musty air and lose efficiency from day one.
- Exposed rural lots with no wind shelter. Properties off Hurt Road and along open stretches of Fair Oaks collect cottonwood and field debris on condenser coils. Chronic high head pressure leads to failed capacitors and refrigerant leaks.
- Handyman-sized units from decades of unpermitted swaps. Fair Oaks’s unincorporated status means no municipal code enforcement for HVAC permits, so we regularly correct years of oversized or undersized equipment that never matched the original ranch or split-level footprint.
See the difference
Before
After
Before
After
Before
AfterPricing for AC Installation in Fair Oaks, GA
Here’s what Fair Oaks homeowners can expect to pay, in writing, before any work begins:
| Service | Fair Oaks Price Range |
|---|---|
| AC Installation | $3,500 – $7,500 |
| Furnace Installation | $3,500 – $7,500 |
| HVAC Installation | $3,500 – $7,500 |
Your final price depends on system size, efficiency rating, and whether your Fair Oaks ductwork needs remediation. We give you a written fixed price before the work starts, and that number doesn’t change at the door. Estimates are free. Call (762) 240-5599 to schedule one.
We Also Serve Cities Near Fair Oaks
Fair Oaks is our home turf, but we regularly run calls to Fair Oaks neighbors in Marietta, Roswell, Woodstock, and North Decatur. Same written pricing, same 365-Day Done Right Promise, same live-person phone coverage.
Serving Fair Oaks, GA - Our Local Coverage Area
We’re based in the Fair Oaks 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 Installation in Fair Oaks
Fair Oaks’s unincorporated status means no municipal code enforcement for HVAC permits, so many existing systems were never properly sized. A Manual J load calculation uses your home’s actual square footage, insulation, window placement, and orientation to determine the right tonnage. Skip it and you risk short-cycling, uneven temperatures, and premature compressor failure. Call (762) 240-5599 for a calculation-backed quote.
Yes, and it’s often the best choice for Fair Oaks lots without gas service. Modern heat pumps heat effectively even when temperatures dip, and they eliminate the need for propane delivery. We’ll compare your options with real efficiency numbers so you can decide with facts, not sales talk.
SEER2 is the newer testing standard that reflects real-world conditions more accurately than the older SEER rating. A unit rated 16 SEER2 performs roughly like an older 17 SEER unit. In Fair Oaks’s humid subtropical climate, with heavy summer cooling loads, the SEER2 number is the one to compare when you’re shopping. We explain this on every quote.
Properties without wind shelter accumulate cottonwood, grass clippings, and field debris on condenser coils, which drives up head pressure and kills capacitors. We recommend coil cleanings twice per cooling season and a shaded pad if possible. It’s cheap insurance on a $3,500 to $7,500 investment, and we note it in every Fair Oaks maintenance plan.
Yes, and we do it regularly. The load calculation covers the whole property, so your workshop gets its own properly sized unit or a ducted branch off the main system. We won’t sell you a window-unit retrofit that can’t keep up with a Georgia August. Call (762) 240-5599 and we’ll look at the whole property before quoting.
Get Your Fair Oaks AC Installation Started Today
If you’re dealing with a dead condenser, a musty crawlspace, or an undersized unit that never cools your ranch, call (762) 240-5599. Victor Mancini and the Cold Harbour Heating and Air Marietta team will give you a written price, a firm arrival window, and a 365-Day Done Right Promise in writing before we leave. Fair Oaks deserves an HVAC company that acts like a neighbor, not a contractor passing through.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Marietta, serving Fair Oaks since 2003.