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Get your free estimateFast, Reliable AC Installation Across Lilburn
A new AC system in Lilburn typically costs between $3,500 and $7,500, and most installations are completed in a single day once the equipment arrives. If the old unit died in July and your family is sweating through dinner, call (229) 490-2049 and a live person answers, day or night. We plan every installation around Lilburn’s older homes, because a system sized and set correctly on red clay is a very different job than a box dropped on a pad in a brand-new subdivision.
Why Meadowsweet Heating and Air Sandy Springs Is Lilburn’s Preferred AC Installation Company
Our crews spend their days on Lilburn streets like Burns Road, Killian Hill Road, and Arcado Road, and they know what’s behind the walls. That matters here in a way it doesn’t in a city with newer construction. Lilburn’s housing stock was built mostly from the 1970s through early 2000s, so we’re rarely installing a simple swap. We’re correcting ductwork, panel capacity, and pad settlement while the new system goes in.
Every job gets the Cedarwell Care Promise before anything else: a written price before work starts, shoe covers and drop cloths inside the home, and a photo of the clean-up sent before the crew leaves. If it’s not done right, the 365-Day Done Right Promise means we make it right, no runarounds. Families in Lilburn with kids and dogs tell us the same thing: the floors look the same when we leave as they did when we arrived, and that’s a standard, not a lucky day.
Luis Serrano runs our team, and his instructions are specific. Ask before moving anything. Respect quiet hours around nap schedules. Explain the price before the work. It sounds simple. It’s remarkable how rarely it happens in this trade.
Styles & brands we work with
Furnace Installation in Lilburn
Furnace Installation in Lilburn usually means pairing a new gas furnace with an existing or new AC coil, and the work runs $3,500 to $7,500 depending on furnace size, efficiency level, and whether the ductwork needs sealing or replacement. Lilburn’s mild winters don’t demand a massive furnace, but the humid crawlspaces many homes sit over mean the blower motor, coil box, and return air path need attention just as much as the burners do. A furnace installed without addressing the return side will short-cycle and leave upstairs bedrooms cold while the living room cooks.
Two-Stage Furnace Sizing for Older Floor Plans
Lilburn’s two-story traditionals and split ranches often have one thermostat for rooms with very different heat loads. A two-stage furnace, matched to a Manual J load calculation, runs on the gentler stage most of the time. That keeps the south-facing bedrooms from swinging ten degrees and keeps the gas bill from spiking every time the temperature dips overnight. It also means the blower moves air quietly enough that a sleeping toddler doesn’t wake up every time the heat kicks on.
Electrical and Clearance Checks Before the Furnace Goes In
Before we quote a furnace, we check the blower amp draw against the existing panel space. Older Lilburn homes often have 100-amp service with a few open slots, and adding a high-efficiency blower without checking means a breaker trip on the first cold snap. We also confirm the new furnace’s venting path is correct for the original closet or attic location, because a furnace swapped into a 1970s utility closet needs combustion air, and skipping that detail is how heat exchangers crack early.
HVAC Installation in Lilburn
HVAC Installation in Lilburn is not a box swap. Most homes here still run original R-22 split systems with flex duct in vented crawlspaces, and the variable that determines whether the new system works is not the brand name. It’s whether the ducts can move the air the new system is rated to deliver. A full HVAC installation, including indoor coil or furnace, outdoor condenser, and duct corrections, lands in the $3,500 to $7,500 range for most Lilburn homes, with the final figure set by the load calculation and duct condition.
Whole-System Coordination on Older Homes
When a Lilburn homeowner replaces both furnace and AC in one job, we coordinate the coil match, the blower speed settings, and the thermostat so the system operates as one unit, not two appliances duct-taped together. That means setting the blower for the right static pressure, not just leaving it on the factory speed, so the equipment stops short-cycling and starts actually removing humidity. In Lilburn’s summers, that’s the difference between a house that feels dry at 75 and one that feels sticky at 72.
Duct Sealing and Return Air in Crawlspace Homes
Homes off Innsbrook Way and around the Mountain Park area frequently have flex duct that’s collapsed, kinked, or pulled apart where it enters a vented crawlspace. We inspect before we quote, because installing a 17-SEER heat pump on top of duct leaks is like pouring water into a sieve. Where the return drop is undersized, we enlarge it, add a filter slot that holds a real 4-inch media filter, and seal the connections so the new system isn’t pulling crawlspace air into the bedrooms. That’s the work that makes a new system actually feel new.
Trusted Brands We Service in Lilburn
We install and service Rheem, York, and Daikin equipment, and we match the brand to the house, not to the warehouse discount. If you want a single-stage AC with a simple control board that any technician can service for the next twenty years, we’ll quote Rheem. If you want quiet, inverter-driven comfort for a two-story Lilburn home with uneven temperatures, a York or Daikin heat pump is usually the better fit. We keep common parts staged at our Atlanta dispatch hub, so a warranty part or a board replacement doesn’t leave a Lilburn family waiting three weeks, and the install crew arrives with what the job needs on the truck.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Lilburn Homes
- Settled condenser pads on red clay. Lilburn’s high water table and clay-heavy soil cause pads to sink and tilt within a few seasons, stressing refrigerant lines and shortening compressor life. We set every new condenser on a pre-cast pad with a compacted gravel base and regrade the area so water sheds away from the unit.
- Like-for-like swaps on original flex duct. A new high-SEER2 system paired with collapsed or separated 1970s flex duct never delivers its rated airflow. The homeowner pays for efficiency the ductwork can’t carry, and the blower motor runs hot trying.
- Undersized electrical panels tripping breakers. Older Lilburn homes with 100-amp service and a full panel often can’t support a new inverter-driven outdoor unit. On hot afternoons when grid voltage sags, the breaker trips mid-cycle, and the family calls us in a panic.
- Mold on evaporator coils from crawlspace humidity. Vented crawlspaces under Lilburn homes feed damp air into the return plenum. Even a new coil can grow a gray film within one summer if the return isn’t sealed and the humidity isn’t managed at the source.
Pricing for AC Installation in Lilburn, GA
A full AC installation in Lilburn runs $3,500 to $7,500. That range includes the equipment, the indoor coil or matched furnace, new refrigerant line set, pad work, electrical hookup, thermostat, and the cleanup. The variables that push a job toward the higher end are duct sealing or replacement, a larger home with a two-zone setup, or a panel upgrade. Here is the breakdown:
| Service | Typical Lilburn Range |
|---|---|
| AC Installation | $3,500 – $7,500 |
| Furnace Installation | $3,500 – $7,500 |
We give you a written price before any work starts, and that price doesn’t change. Call (229) 490-2049 for a free estimate, and we’ll send someone to walk your home, measure your ductwork, and put a number in front of you the same week, not after three rounds of sales pitch.
We Also Serve Cities Near Lilburn
Our crews cover AC Installation throughout Gwinnett and north DeKalb, including Norcross, Tucker, Roswell, and Smyrna. If you’re in Lilburn proper or just over the city line, you’re getting the same crew, the same written price, and the same clean-up standard. Check our Lilburn service area page for more neighborhood detail.
Serving Lilburn, GA - Our Local Coverage Area
We’re based in the Lilburn 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 Lilburn
Because the original 3-ton system was probably oversized when it was installed, and the house has changed since. Your attic insulation, window replacements, and duct sealing all reduce the required cooling load, so a like-for-like 3-ton leaves you with a system that short-cycles, doesn’t dehumidify, and wears out the compressor early. We pulled a 1992 split system from a ranch off Burns Road where the original 3-ton was oversized for the tightened envelope; the Manual J calculation showed a 2.5-ton unit was correct. That home now runs longer cycles at lower amp draw, and the humidity finally dropped. Call (229) 490-2049 to schedule a load calculation in Lilburn.
Lilburn’s clay-heavy soils expand when wet and shrink when dry, and a condenser set on an unprepared pad will sink, tilt, and stress the refrigerant lines within a few seasons. We pulled that 1992 system off Burns Road with the condenser sunk two inches into red clay, kinking the suction line and starving the compressor of refrigerant charge. Every new condenser we set goes on a pre-cast pad over a compacted gravel base, and we regrade the surrounding soil so water drains away from the unit instead of pooling under it.
Yes, in most Lilburn homes the ductwork is the weak link, not the equipment. Collapsed or separated flex duct in a vented crawlspace means your new high-efficiency system can only deliver a fraction of its rated airflow, and it pulls damp crawlspace air into the return. We inspect the full duct run before quoting, and when the ducts are shot, we replace them or seal and repair them as part of the installation. The new system only performs as well as the ductwork allows.
Many Lilburn homes still have 100-amp service with a full panel, and a new inverter-driven outdoor unit with a variable-speed blower needs a dedicated circuit and often a surge protector. Without the electrical work, hot afternoons when the grid voltage sags will trip the breaker and leave you without cooling. We check panel capacity during every quote and include any panel or service work in the written price, so there’s no surprise electrician bill after the install starts.
The mold is coming from the crawlspace, not the coil itself. Vented crawlspaces under Lilburn’s older homes hold damp, organic air, and when the return plenum pulls that air across a cold coil, mold grows within one summer. Sealing the return path, adding a media filter cabinet, and reducing crawlspace humidity with a vapor barrier or dehumidifier are the only real fixes. A coil cleaning alone will just repeat the cycle every year. Call (229) 490-2049 and we’ll figure out the source before you spend money on another cleaning.
Written by Luis Serrano, Owner at Meadowsweet Heating and Air Sandy Springs.