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 Woodstock
AC installation in Woodstock typically runs $3,500 to $7,500 depending on system size, efficiency rating, and whether your home needs ductwork or electrical upgrades first. Most full replacements take one to two days, and we schedule around your life, not the other way around. Halden Heating and Air Marietta serves Woodstock homeowners with written pricing before any work starts, live arrival times you can track, and a 365-Day Done Right Promise on every job. Call (229) 514-0545 for a free estimate.
We know Woodstock’s housing stock because we work in it every week. The 1990s tract homes in subdivisions like Towne Lake, the older split-levels near downtown, and the newer builds pushing west toward the Milton border all have different installation challenges. A crew that only does new construction will miss what an older Woodstock house actually needs. We won’t.
Why Halden Heating and Air Marietta Is Woodstock’s Preferred AC Installation Company
We’re not a faceless call center. Halden Heating and Air Marietta is independently owned and operated, part of the Relay Home Co. network, and held to The Relay Visibility Guarantee. Andre Fuller leads our team, and the standard is simple: a written price before we touch your unit, a written guarantee on the work, and a technician you can track to your door. No four-hour windows. No price changes at the doorstep.
Woodstock homeowners tell us the same thing over and over: they’ve had techs swap in the same tonnage system, collect a check, and leave the upstairs still baking. That’s why our installs start with a load calculation, not a guess. In Towne Lake specifically, we’ve measured upstairs bedrooms running 10 to 15 degrees hotter than the main floor because the original flex duct runs to bonus rooms over garages are undersized for afternoon sun loading. A like-for-like swap without re-ducting or zoning almost never fixes that. We plan for it from day one.
Every installation includes a written guarantee and the 365-Day Done Right Promise. If something isn’t right within a year, we make it right. That’s not a marketing line. It’s in writing, on every job, without exception.
Styles & brands we work with
Furnace Installation in Woodstock
Furnace Installation in Woodstock is a decision most homeowners make because the old unit died in January, or because they’re replacing the AC and realize the furnace is the same age and not far behind. A new furnace typically runs $3,500 to $7,500 here, in line with AC installation pricing since both jobs involve similar labor, sheet metal work, and electrical connections.
When a paired replacement makes sense
If your AC is 15 years old and your furnace is 15 years old, replacing both at once usually costs less than doing them two years apart. You avoid a second round of labor charges, you get a matched system that hits its rated efficiency, and you only lose one day of comfort instead of two. We’ll tell you honestly if the furnace has life left and a paired replacement isn’t necessary.
What the job includes
A furnace install in Woodstock involves removing the old unit, checking the heat exchanger and flue, sealing duct connections, wiring the new blower, and verifying gas pressure and airflow. We also check the electrical panel, which matters more in older Woodstock homes than people expect. Many 1990s tract homes still have 100-amp panels that are already full, and a new high-efficiency blower motor can push them over the edge.
HVAC Installation in Woodstock
HVAC Installation in Woodstock means replacing the full system: the indoor air handler or furnace, the outdoor condenser, the evaporator coil, and often the thermostat. It’s the right call when both major components are aging out, when you want a matched system that actually delivers its SEER2 rating, or when comfort problems point to a system-level issue rather than a single failed part. Full HVAC installation in Woodstock runs $3,500 to $7,500.
Why a full-system view matters in older homes
We replaced a 1998 Goodman split system in a Towne Lake two-story where the upstairs bonus room was 14°F warmer than the kitchen. Our tech found a 6-inch flex run to that bonus room pinched and undersized, plus a 60-amp panel maxed out. We ran a Manual J load calculation, added a dedicated 20-amp circuit, zoned the upstairs with a damper, and upgraded to a 3-ton Carrier 17 SEER2 heat pump with a new evaporator coil. That bonus room now stays within 2°F of the rest of the house. The fix wasn’t just a bigger unit. It was a system-level correction.
Sizing starts with math, not habit
Too many installs in Woodstock start with “what tonnage was there before” and stop there. That’s how you end up with a new system that still can’t balance a two-story floor plan. We run a Manual J load calculation on every install, accounting for window orientation, attic insulation, duct condition, and the afternoon sun load that makes west-facing bedrooms in Woodstock so difficult to cool. Then we size the system to the house as it actually performs, not as it was built 25 years ago.
Trusted Brands We Service in Woodstock
We install and service all major brands, and we stock parts for Trane, Lennox, Goodman, and Rheem so Woodstock customers aren’t waiting a week for a condenser fan motor or a control board. We don’t push one brand over another; we match the equipment to your house, your budget, and how long you plan to stay. Every system we install comes with manufacturer warranty coverage and our own 365-Day Done Right Promise on the labor. If you have a brand preference, tell us. If you don’t, we’ll walk you through the trade-offs in plain English.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Woodstock Homes
- Same-tonnage swaps that ignore the upstairs. Swapping in the same tonnage without a load calculation on a 1990s tract home leaves upstairs bedrooms still baking because original flex ducts and single-zone design can’t balance the floor plan. We see this constantly in Towne Lake and subdivisions built in the same era.
- Electrical panels that can’t handle the new load. Techs miss that the panel is only 100 amps and already full, so they wire the new condenser into an overloaded breaker. That means nuisance trips or worse when the compressor and blower motor pull locked-rotor amps together. We check the panel before we quote, not after the drywall is done.
- Attic-mounted air handlers that short-cycle in July. In newer west Woodstock builds, attic-mounted air handlers overheat and short-cycle because the install crew set the blower speed for maximum SEER2 but not for the static pressure that attic heat adds to the duct system. The unit shuts down, the house warms up, and the thermostat shows a call for cooling that never completes.
- Duct leakage nobody tested. Older Woodstock homes often lose 20 to 30 percent of conditioned air through leaky duct joints and disconnected runs in the attic. You paid to cool the house, not the rafters. We test static pressure and duct tightness before finalizing any system design.
Pricing for AC Installation in Woodstock, GA
Here’s what you can expect to pay in Woodstock, based on current market rates for this area:
| Service | Typical Range |
|---|---|
| AC Installation | $3,500 – $7,500 |
| Furnace Installation | $3,500 – $7,500 |
| HVAC Installation (full system) | $3,500 – $7,500 |
What moves the price within that range? System capacity, SEER2 efficiency rating, whether ductwork or electrical work is required, and whether you’re replacing a single component or the whole system. A 14 SEER2 single-stage AC in a 1,500-square-foot ranch will land at the lower end. A 17-plus SEER2 variable-speed heat pump with zoning in a two-story Towne Lake home will land at the higher end. We give you a written fixed price before any work begins, so there’s no door-step surprise. Call (229) 514-0545 for a free estimate and an exact quote for your house.
We Also Serve Cities Near Woodstock
Our AC Installation team works throughout northwest metro Atlanta. Beyond Woodstock, we regularly install and service systems in Kennesaw, Acworth, Roswell, and Marietta. If you’re in a neighboring community and need a straight answer on AC replacement, call us. We’ll tell you if we can get there same week and what the job will cost.
Serving Woodstock, GA - Our Local Coverage Area
We’re based in the Woodstock 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 Woodstock
Because the new system was likely sized by tonnage alone, not by a load calculation, and the original flex duct run to that bonus room is undersized for the afternoon sun load it takes. A same-size swap cannot fix a duct problem. The fix is re-ducting that run, zoning the upstairs, or both. We measure this before we quote, so you know what you’re actually paying for. Call (229) 514-0545 and we’ll walk you through what your house needs.
You might. Many 1990s and 1980s homes in Woodstock have 100-amp panels that are already full, and a new high-efficiency condenser with a variable-speed blower can draw more than the old system did. We check the panel load during the estimate. If you need a subpanel or a service upgrade, we tell you up front and include it in the written price. No surprises after the drywall is open.
SEER2 is the updated efficiency rating standard that replaced SEER in 2023. It measures cooling output per watt of electricity under more realistic operating conditions, including the duct static pressure that’s typical in real homes like the ones we see across Woodstock. A higher SEER2 rating means lower summer electric bills, but only if the ductwork and airflow support it. We’ll show you the difference in real dollar terms before you choose.
Because the blower speed was set for a lab-rated SEER2 number, not for the static pressure added by hot attic ductwork in a Georgia summer. The air handler overheats, the safety switch trips, and the system cycles off before it ever satisfies the thermostat. We set blower speed to the actual measured static pressure of your duct system. That’s the difference between an install that works on paper and one that works in July.
If both units are the same age, usually yes. You save on the second labor charge, you get a matched system that hits its rated efficiency, and you avoid another full day of downtime in a few years. If the furnace has real life left, we’ll tell you to keep it. Our technicians are not paid on what they sell, so the recommendation you get is the one we’d give a neighbor. Call (229) 514-0545 for an honest assessment and a free estimate.
Written by Andre Fuller, Owner at Halden Heating and Air Marietta, serving Woodstock with upfront pricing and written guarantees on every installation.