Seasonal 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.
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AfterFast, Reliable AC Installation Across Snellville
AC installation in Snellville typically runs $3,500-$7,500 for a complete system replacement, and most jobs are scheduled within a few days after your free in-home estimate. Our AC Installation team serves Snellville from our Atlanta dispatch office, with crews familiar with the specific challenges of Gwinnett County’s 1980s-through-2000s subdivision homes. Call (817) 402-2972 to book a free estimate, or keep reading to understand why a straight tonnage swap often leaves Snellville homeowners disappointed.
We’ve been working in Snellville long enough to know the pattern. A homeowner near Ronald Reagan Parkway or in the Summit Chase area calls because the upstairs master bedroom won’t cool below 80°F in July, even with the thermostat set to 73°F downstairs. The original builder-grade system is 25 or 30 years old, and the instinct is to replace it with the same size unit. That instinct is usually wrong for these houses.
Why Coldharbour Heating & Air Is Snellville’s Preferred AC Installation Company
Coldharbour Heating & Air has built its reputation in Snellville on one principle: we diagnose before we sell. Our technicians are background-checked, uniformed, and trained on nine major residential HVAC brands including Rheem, York, and Daikin. When we arrive at a Snellville home, we run a room-by-room load calculation. We inspect the attic ductwork. We check whether the electrical panel can handle a modern system’s draw. Only then do we present a written price.
That written price is fixed. It doesn’t change at the door. This is The Kingswell Way, and it’s how we’ve operated since 2003 as an independently owned member of the Kingswell network. Every repair carries our 365-Day Done Right Promise in writing: if the work fails within a full year, we return and correct it at no charge. No argument, no additional invoice.
Our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail trees. No “call back in the morning” when your system quits on a Saturday night.
Furnace Installation in Snellville
Furnace Installation in Snellville addresses a specific gap in many local homes: the original builder-grade gas furnace or heat-strip backup was frequently undersized for real winter demand, especially in two-story layouts where heat rises and the upstairs over-warms while the downstairs runs short. A modern furnace replacement should be sized to the home’s actual heat loss, not the old unit’s nameplate, and it must integrate with any planned zoning or heat-pump configuration.
Most Snellville furnace installations fall within the broader HVAC installation range of $3,500-$7,500, though straight furnace-only replacements can land at the lower end when ductwork and electrical are already adequate. We see many Snellville homeowners pair a new furnace with a heat pump for dual-fuel operation, which handles mild Piedmont winters efficiently while the furnace carries the coldest nights.
When to Replace Rather Than Repair
If your furnace is over 15 years old, needs a heat exchanger replacement, or cannot maintain setpoint on a 35°F Snellville morning, replacement usually makes more financial sense. Heat exchanger failures are particularly common in the builder-grade units installed during Gwinnett County’s building boom.
Electrical and Gas Line Considerations
Many Snellville homes from the 1990s have 100-amp electrical panels that need upgrading before a modern variable-speed furnace or heat pump can be installed safely. We check this during our estimate and coordinate any necessary electrical work.
HVAC Installation in Snellville
HVAC Installation in Snellville means more than hanging a new condenser outside and an air handler in the attic. For the city’s dominant housing stock, built between 1985 and 2005, proper installation requires addressing the original single-zone design, attic ductwork baked by 130°F+ summer temperatures, and electrical infrastructure that may not support modern equipment. The typical complete HVAC installation in Snellville runs $3,500-$7,500, with final cost driven by system size, zoning complexity, and whether ductwork repair or electrical upgrades are needed.
We were called to a 1990s two-story in the Summit Chase area where the upstairs master was hitting 82°F while the downstairs thermostat read 73°F, and the original R-22 condenser had finally lost its refrigerant charge. We ran a room-by-room load calculation, found the 30-year-old attic duct trunk was so leaky that static pressure was off the chart, re-insulated and resealed the ductwork, added a zoning damper system, and set a Carrier two-stage heat pump sized to each zone. The homeowner now sees a 2°F spread between floors instead of 9.
Load Calculation First
We never size by the old unit’s label. Snellville’s humid Piedmont climate, with summer dew points routinely exceeding 70°F, imposes heavy latent loads that the original builder may not have accounted for. Our Manual J load calculations factor in actual insulation levels, window efficiency, and duct leakage.
Zoning for Two-Story Homes
A single thermostat downstairs cannot balance a 2,500 or 3,000 square foot two-story home. We design zoning systems that separate upstairs and downstairs into independent zones, each with its own damper and thermostat control.
Trusted Brands We Service in Snellville
Our technicians carry training and local parts access for nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Snellville homeowners, this means we can service whatever system is currently in your home and source replacement equipment without long lead times. We stock common components locally and coordinate with distributors in the Gwinnett County area to minimize wait times on specialty items. Whether your existing system is a 20-year-old Rheem or you’re considering a new Daikin heat pump for your Snellville home, the technician who arrives can work on it.
Common AC Installation Problems We See in Snellville Homes
- Single-zone systems failing oversized two-story floor plans. The thermostat sits downstairs, the master bedroom bakes upstairs, and a like-for-like tonnage swap does nothing to fix the fundamental imbalance. Zoning or a two-system design is the actual solution.
- Attic ductwork leaking after decades of 130°F+ summer heat. Unconditioned attics in Snellville destroy duct seals and insulation. New equipment fighting high static pressure from leaky ducts works harder, dies sooner, and still can’t cool evenly.
- R-22 refrigerant obsolescence making recharge uneconomical. Most Snellville systems from the building boom use R-22, which is no longer manufactured. A “simple recharge” now requires reclaimed refrigerant at steep cost, and the underlying leak remains.
- Electrical panels undersized for modern variable-speed equipment. A 1995-era 100-amp panel cannot safely start a modern two-stage or variable-capacity compressor. We identify this before installation, not after the equipment arrives.
Pricing for AC Installation in Snellville, GA
We believe you deserve a real number before any work begins. Here’s what typical HVAC work costs in the Snellville market:
| Service | Typical Range in Snellville |
|---|---|
| AC Installation | $3,500 - $7,500 |
| Tune-Up | $80 - $200 |
| AC Repair | $150 - $650 |
| Furnace Repair | $150 - $700 |
What moves an AC installation toward the higher end? Ductwork replacement or resealing, electrical panel upgrades, zoning system additions, and the efficiency tier of the equipment itself. A basic 14 SEER single-stage replacement on existing adequate ductwork lands near the bottom. A two-stage heat pump with zoning, duct repair, and panel work lands higher. We give you one written price that includes everything before a single tool comes out. No additions at the door. Call (817) 402-2972 for your free estimate.
We Also Serve Cities Near Snellville
Our crews work throughout Gwinnett and Rockdale counties, including Snellville and the nearby communities of Lilburn, Grayson, Conyers, and Redan. The same Kingswell standards, the same written pricing, and the same 365-Day Done Right Promise apply whether you’re off Highway 78 or near Stone Mountain Park.
Serving Snellville, GA - Our Local Coverage Area
We’re based in the Snellville 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 Snellville
A new AC by itself usually won’t fix it. The root problem is the single-zone design common to 1990s Snellville subdivisions, where one thermostat downstairs tries to control a two-story floor plan with attic ductwork baking in 130°F heat. We fix this with a room-by-room load calculation, duct sealing or replacement, and either zoning dampers or a two-system design. Call (817) 402-2972 and we’ll show you exactly what your home needs during a free estimate.
Most Snellville systems from the 1985-2005 building boom use R-22 refrigerant, which is no longer manufactured. A recharge requires expensive reclaimed refrigerant, and the leak causing the low charge will just drain it again. Meanwhile, the equipment is typically 20-35 years old, past its reliable service life. Replacement with modern R-410A or R-32 equipment is the practical and cost-effective path. Call (817) 402-2972 to discuss whether repair or replacement makes sense for your specific system.
Often yes, if your home has a 100-amp panel from the original construction. Modern two-stage and variable-speed compressors draw more startup current than 1990s equipment, and code requirements have tightened. We check your panel’s capacity and condition during our free estimate and coordinate any necessary electrical upgrade. The written price we give you includes everything, so there are no surprises after installation day.
We can’t tell you without a Manual J load calculation. Square footage alone is misleading in Snellville, where humid Piedmont summers, unconditioned attic ductwork, and single-zone imbalance all affect sizing. A 2,500 sq ft two-story with leaky attic ducts and west-facing windows needs a different solution than the same footprint with sealed ducts and good shade. Our load calculation gives the exact answer for your specific home. Call (817) 402-2972 to schedule yours.
AC installation in Snellville typically costs $3,500-$7,500. The lower end covers a straightforward single-stage replacement with adequate existing ductwork and electrical. The higher end includes two-stage or variable-capacity equipment, zoning systems, duct sealing or replacement, and electrical panel upgrades. Every estimate we provide is free, written, and fixed before work begins. Call (817) 402-2972 to get your exact number.
Ready to stop fighting an upstairs that won’t cool? Call Coldharbour Heating & Air at (817) 402-2972 for a free, written estimate on AC installation in Snellville. We’ll run the load calculation, inspect your ductwork, and give you a price that doesn’t change. The Kingswell Way means we say the price before the work starts, show up in the window we promise, leave your home cleaner than we found it, put our guarantee in writing, and come back if it fails. That’s been our standard since 2003.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Snellville since 2003.